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CN116360174B - Display panel, manufacturing method of display panel and display device - Google Patents

Display panel, manufacturing method of display panel and display device Download PDF

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Publication number
CN116360174B
CN116360174B CN202310243698.9A CN202310243698A CN116360174B CN 116360174 B CN116360174 B CN 116360174B CN 202310243698 A CN202310243698 A CN 202310243698A CN 116360174 B CN116360174 B CN 116360174B
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China
Prior art keywords
display panel
light
layer
charged particles
pixel
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CN202310243698.9A
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Chinese (zh)
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CN116360174A (en
Inventor
鲜济遥
李荣荣
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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Priority to CN202310243698.9A priority Critical patent/CN116360174B/en
Publication of CN116360174A publication Critical patent/CN116360174A/en
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/165Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/166Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
    • G02F1/167Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/165Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/1675Constructional details
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/165Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/1685Operation of cells; Circuit arrangements affecting the entire cell

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The application provides a display panel, which also comprises a light transmission control component arranged between the array substrate and the color substrate, wherein the light transmission control component comprises a pixel blocking layer provided with a plurality of light emitting holes, and the light transmission control component also comprises an insulating solution filled in the light emitting holes and a plurality of charged particles dispersed in the insulating solution, wherein the charged particles are used for shading light. The preset electric field drives the charged particles to move towards the array substrate or away from the array substrate in the light emitting holes so as to control the dispersity of the charged particles in the light emitting holes and further adjust the transmittance of the light transmission control component. Therefore, the shielding degree of the backlight provided by the backlight module through the charged particles is different so as to realize different transmittance of the light outlet, thereby reducing the loss of the backlight in the light transmission control assembly, improving the utilization rate of the backlight and the transmittance of the display panel. The application also provides a manufacturing method of the display panel and a display device.

Description

Display panel, manufacturing method of display panel and display device
Technical Field
The present application relates to the field of display technologies, and in particular, to a display panel, a method for manufacturing the display panel, and a display device having the display panel.
Background
The liquid crystal display has been widely used in the display field due to the advantages of thin body, power saving, low price, etc.
The liquid crystal display generally includes a display panel and a backlight module, the backlight module provides light for display to the display panel, the display panel includes a liquid crystal layer, and the transmittance of the display panel is adjusted by controlling the deflection angle of liquid crystal molecules in the liquid crystal layer. In the prior art, the liquid crystal molecules in the liquid crystal layer refract the light provided by the backlight module, so that most of the light is lost in the display panel, and only a small part of the light is transmitted through the display panel, so that the transmittance of the display panel is lower, and the light utilization rate is lower.
Therefore, how to solve the problem of low light utilization rate caused by high light loss in the display panel in the prior art is a urgent need for those skilled in the art.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present application is to provide a display panel, a manufacturing method of the display panel, and a display device having the display panel, which are aimed at solving the problem of low light utilization rate caused by high light loss in the display panel in the prior art.
In order to solve the above technical problems, an embodiment of the present application provides a display panel, which includes an array substrate and a color substrate that are opposite and spaced apart, and a preset electric field is formed between the array substrate and the color substrate. The display panel also comprises a light transmission control component arranged between the array substrate and the color substrate, wherein the light transmission control component comprises a pixel blocking layer, and a plurality of light emitting holes which are distributed in an array and penetrate through the pixel blocking layer are formed in one side of the pixel blocking layer, which is opposite to the array substrate. The light transmission control assembly further comprises an insulating solution filled in the light emergent holes and a plurality of charged particles dispersed in the insulating solution, wherein the charged particles are used for shading light. The preset electric field drives the charged particles to move in the light outlet holes towards the array substrate or away from the array substrate, so as to control the dispersity of the charged particles in the light outlet holes and further adjust the transmittance of the light transmission control component.
In summary, in the display panel provided by the embodiment of the application, the shielding degrees of the plurality of charged particles on the backlight provided by the backlight module are different, so that the light emitting holes have different transmittances. The backlight provided by the backlight module is not refracted in the light transmission control assembly, so that the loss of the backlight in the light transmission control assembly is reduced, the utilization rate of the backlight is improved, and the transmittance of the display panel is improved.
In an exemplary embodiment, the aperture of the light exit hole is gradually increased in a direction in which the array substrate is directed toward the color substrate. The light emergent hole comprises a first opening and a second opening, the first opening faces the color substrate, and the second opening faces the array substrate.
In an exemplary embodiment, a plurality of the charged particles are connected and a ratio of an area formed by tiling to an area corresponding to the first opening is less than or equal to 0.9.
In an exemplary embodiment, a plurality of the charged particles are connected and a ratio of an area formed by tiling to an area corresponding to the second opening is 1 to 1.2.
In an exemplary embodiment, the array substrate 11 includes a plurality of pixel electrodes embedded in the pixel blocking layer and located at the second opening, where positions of the plurality of pixel electrodes correspond to positions of the plurality of light emitting holes. The color substrate comprises a public electrode layer, the public electrode layer is arranged on one side of the pixel blocking layer, which is opposite to the array substrate, and covers a plurality of light emitting holes, and the public electrode layer and the pixel electrode form the preset electric field.
In an exemplary embodiment, a peripheral side surface of the pixel electrode is aligned with a peripheral edge of a plane in which the first opening is located, and the preset electric field formed by the pixel electrode and the common electrode layer covers the light emitting hole.
In an exemplary embodiment, the common electrode layer includes a plurality of electrode elements whose positions correspond to positions of the plurality of pixel electrodes, and a plurality of conductive elements connected between two adjacent electrode elements to electrically connect the plurality of electrode elements. The height of the surface of the pixel electrode facing the electrode element decreases in a direction from the center of the pixel electrode toward the periphery of the pixel electrode, and the height of the surface of the electrode element facing the pixel electrode decreases in a direction from the center of the electrode element toward the periphery of the electrode element.
In an exemplary embodiment, the charged particles include a core, a charged layer, and an insulating layer, the charged layer wraps the surface of the core, the insulating layer wraps the outer surface of the charged layer, the core is used for shielding light, the charged layer moves under the driving of the preset electric field, and the insulating layer insulates the outer surface of the charged layer.
Based on the same inventive concept, the embodiment of the application further provides a manufacturing method of the display panel, which is used for manufacturing the display panel, and the manufacturing method of the display panel comprises the following steps:
Forming an array substrate;
Forming a pixel blocking layer on one side of the array substrate, and forming a plurality of light emitting holes penetrating through the pixel blocking layer on the pixel blocking layer;
injecting an insulating solution into each light emergent hole and a plurality of charged particles;
And forming a color substrate on one side of the pixel blocking layer, which is opposite to the array substrate, wherein the color substrate covers the light emitting holes.
In summary, the manufacturing method of the display panel provided by the embodiment of the application includes: forming an array substrate; forming a pixel blocking layer on one side of the array substrate, and forming a plurality of light emitting holes penetrating through the pixel blocking layer on the pixel blocking layer; injecting an insulating solution into each light emergent hole and a plurality of charged particles; and forming a color substrate on one side of the pixel blocking layer, which is opposite to the array substrate, wherein the color substrate covers the light emitting holes. The display panel formed by the manufacturing method of the display panel has different transmittance through different shielding degrees of the charged particles on backlight provided by the backlight module. The backlight provided by the backlight module is not refracted in the light transmission control assembly, so that the loss of the backlight in the light transmission control assembly is reduced, the utilization rate of the backlight is improved, and the transmittance of the display panel is improved.
Based on the same inventive concept, the embodiment of the application also provides a display device, which comprises a backlight module and the display panel, wherein the display panel is arranged on the light emitting side of the backlight module.
In summary, the display device provided by the embodiment of the application includes a backlight module and a display panel, where the display panel formed by the manufacturing method of the display panel has different transmittance through different shielding degrees of the plurality of charged particles on the backlight provided by the backlight module. The backlight provided by the backlight module is not refracted in the light transmission control assembly, so that the loss of the backlight in the light transmission control assembly is reduced, the utilization rate of the backlight is improved, and the transmittance of the display panel is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic layer structure of a display device according to a first embodiment of the present application;
fig. 2 is a schematic view of a first layer structure of a display panel according to a second embodiment of the present application;
fig. 3 is a schematic diagram showing an internal structure of charged particles of a display panel according to a second embodiment of the present application;
Fig. 4 is a schematic view showing a first display state of a display panel according to a second embodiment of the present application;
FIG. 5 is a schematic diagram showing a second display state of a display panel according to a second embodiment of the present application;
fig. 6 is a schematic diagram of a third display state of a display panel according to a second embodiment of the present application;
fig. 7 is a schematic view of a second layer structure of a display panel according to a second embodiment of the present application;
FIG. 8 is a schematic diagram illustrating a light transmission adjustment principle of the display panel shown in FIG. 7;
FIG. 9 is a flowchart illustrating a method for fabricating a display panel according to a third embodiment of the present application;
fig. 10 is a schematic structural diagram of a display panel according to a third embodiment of the present application, which is formed in step S10;
fig. 11 is a schematic structural diagram of a display panel according to a third embodiment of the present application, which is formed in step S20;
Fig. 12 is a schematic structural diagram corresponding to step S30 of the method for manufacturing a display panel according to the third embodiment of the present application;
Fig. 13 is a schematic structural diagram corresponding to step S40 of the method for manufacturing a display panel according to the third embodiment of the present application;
FIG. 14 is a flowchart of step S10 in the method for fabricating the display panel shown in FIG. 9;
fig. 15 is a schematic structural diagram of a display panel according to a third embodiment of the present application, which is formed in step S12;
FIG. 16 is a flowchart illustrating a step S40 in the method for fabricating the display panel shown in FIG. 9;
fig. 17 is a schematic structural diagram corresponding to step S41 of the method for manufacturing a display panel according to the third embodiment of the present application;
fig. 18 is a schematic structural diagram of a display panel according to a third embodiment of the present application, which is formed in step S42;
fig. 19 is a schematic structural diagram corresponding to step S43 of the method for manufacturing a display panel according to the third embodiment of the present application.
Reference numerals illustrate:
10-a display panel; 10 a-a display panel; 11-an array substrate; 13-a light transmission control assembly; 15-a color substrate; 30-a backlight module; 100-a display device; a 111-pixel electrode; 113-a driving circuit layer; 115-a substrate; 131-a pixel barrier; 132-a light outlet hole; 132 a-a first opening; 132 b-a second opening; 133-insulating solution; 135-charged particles; 135 a-a kernel; 135 b-charged layer; 135 c-an insulating layer; 151-a common electrode layer; 151 a-electrode elements; 151 b-conductive elements; 153-a light shielding layer; 153 a-light holes; 154-first color resistance; 155-a second color resistance; 156-third color resistance; 158-an encapsulation layer; S10-S40-a manufacturing method of the display panel; S11-S13-step S10; S41-S44-step S40.
Detailed Description
In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the application. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the application may be practiced. The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated. Directional terms, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc., in the present application are merely referring to the directions of the attached drawings, and thus, directional terms are used for better, more clear explanation and understanding of the present application, rather than indicating or implying that the apparatus or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art. It should be noted that the terms "first," "second," and the like in the description and claims of the present application and in the drawings are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprises," "comprising," "includes," "including," or "having," when used in this specification, are intended to specify the presence of stated features, operations, elements, etc., but do not limit the presence of one or more other features, operations, elements, etc., but are not limited to other features, operations, elements, etc. Furthermore, the terms "comprises" or "comprising" mean that there is a corresponding feature, number, step, operation, element, component, or combination thereof disclosed in the specification, and that there is no intention to exclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof. It will also be understood that the meaning of "at least one" as described herein is one and more, such as one, two or three, etc., and the meaning of "a plurality" is at least two, such as two or three, etc., unless specifically defined otherwise.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Referring to fig. 1, fig. 1 is a schematic layer structure of a display device according to a first embodiment of the application. In the embodiment of the present application, the display device 100 may include a display panel 10 and a backlight module 30 that are stacked, where the display panel 10 is disposed on a light emitting side of the backlight module 30, and the display panel 10 is configured to display an image under a backlight provided by the backlight module 30.
In the embodiment of the application, the backlight module 30 may be an edge-lit backlight module or a direct-lit backlight module, which is not particularly limited in the application.
It is understood that the display device 100 may be used in electronic devices including, but not limited to, tablet computers, notebook computers, desktop computers, mobile phones, in-vehicle displays, and the like. According to the embodiment of the present invention, the specific type of the display device 100 is not particularly limited, and a person skilled in the art can correspondingly design according to the specific use requirement of the display device 100, which is not described herein.
In an exemplary embodiment, the display device 100 may further include other necessary components and constituent parts such as a driving board, a power board, a high-voltage board, and a key control board, which may be correspondingly supplemented by those skilled in the art according to the specific type and actual function of the display device 100, and will not be described herein.
Referring to fig. 2, fig. 2 is a schematic layer structure of a display panel according to a second embodiment of the application. In the embodiment of the present application, the display panel 10 includes an array substrate 11, a light-transmitting control component 13, and a color substrate 15 that are sequentially stacked. That is, the array substrate 11 is opposite to the color substrate 15 and spaced apart from the color substrate 15, and the light transmission control component 13 is disposed between the array substrate 11 and the color substrate 15. The array substrate 11 and the color substrate 15 are used for forming a preset electric field to control the transmittance of the light transmission control component 13.
In the embodiment of the application, the light transmission control component 13 includes a pixel blocking layer 131, and a plurality of light emitting holes 132 which are distributed in an array and penetrate through the pixel blocking layer 131 are formed on a side of the pixel blocking layer 131 opposite to the array substrate 11. The light transmission control assembly 13 further includes an insulating solution 133 filled in the light emitting holes 132 and a plurality of charged particles 135 dispersed in the insulating solution 133, wherein the charged particles 135 are used for shielding light. The preset electric field drives the plurality of charged particles 135 to move in the light exit hole 132 toward the array substrate 11 or away from the array substrate 11, so as to control the dispersion degree of the plurality of charged particles 135 in the light exit hole 132, and further adjust the transmittance of the light transmission control component 13. Wherein the dispersity refers to a distance by which the plurality of charged particles 135 are spaced apart from each other in the insulating solution 133, and the smaller the dispersity is, the smaller the distance by which the plurality of charged particles 135 are spaced apart from each other is; the larger the dispersity, the larger the distance the plurality of the charged particles 135 are spaced apart from each other.
It can be understood that, the surface of the array substrate 11 facing the color substrate 15 is taken as a height reference plane, and the heights of the plurality of charged particles 135 in the light emitting holes 132 are different, so that the dispersion degree of the plurality of charged particles 135 in the light emitting holes 132 is different, and the shielding degree of the plurality of charged particles 135 on the backlight provided by the backlight module 30 is different, so as to adjust the transmittance of the light emitting holes 132. Compared with the prior art, the light transmission control component 13 provided by the application does not refract the backlight provided by the backlight module 30, so that the loss of the backlight in the light transmission control component 13 is reduced, the transmittance of the display panel 10 is improved, and the utilization rate of the backlight is further improved.
In an exemplary embodiment, the material of the pixel blocking layer 131 includes, but is not limited to, resins. The pixel blocking layer 131 has better light shielding property to avoid crosstalk of light rays in the adjacent light emitting holes 132. The pixel barrier layer 131 also has good insulation and thermal conductivity, and has a certain structural strength to enhance the deformation resistance of the display panel 10.
In an exemplary embodiment, the insulating solution 133 is used to disperse a plurality of the charged particles 135, avoiding the plurality of the charged particles 135 from being concentrated together. The insulating solution 133 is also used to suspend the plurality of charged particles 135, i.e. the insulating solution 133 causes the plurality of charged particles 135 to be stationary in the absence of the preset electric field.
In an exemplary embodiment, the insulating solution 133 has better transparency, so as to avoid affecting the transmittance of the position corresponding to the light emitting hole 132. The material of the insulating solution 133 includes, but is not limited to, one or more of halogenated hydrocarbon, aromatic hydrocarbon, aliphatic hydrocarbon, ketone, ether, and lauroxy-alkane, and may be a nonpolar alkane, a cyclic hydrocarbon, or a mixture of hydrocarbon substances with similar densities. The material of the insulating solution 133 should be selected with consideration of its chemical inertness, density matching with the charged particles 135, and chemical compatibility.
In the embodiment of the application, please refer to fig. 3, fig. 3 is a schematic diagram illustrating an internal structure of charged particles of a display panel according to a second embodiment of the application. The charged particles 135 include an inner core 135a, a charged layer 135b, and an insulating layer 135c. The charged layer 135b wraps around the surface of the inner core 135a, and the insulating layer 135c wraps around the outer surface of the charged layer 135 b. The inner core 135a is used for shading, the charged layer 135b may have positive or negative charges, so that the charged particles 135 may move under the drive of the preset electric field, the insulating layer 135c is used for insulating the outer surface of the charged layer 135b, avoiding the charge of the charged layer 135b from disappearing, and the insulating layer 135c is also used for adjusting the overall density of the charged particles 135, so that the charged particles 135 may exist in the insulating solution 133 in a relatively dispersed manner.
In an exemplary embodiment, the material of the inner core 135a includes, but is not limited to, an inorganic material, which is chemically stable, and the color of the inner core 135a may be black or other colors having good shading performance. The material of the charged layer 135b includes, but is not limited to, diethylhexyl methacrylic acid, a silane coupling agent, titanate, zirconate, or the like. The material of the insulating layer 135c includes, but is not limited to, organic resins.
In summary, the display panel 10 provided in the embodiment of the application includes the array substrate 11, the light-transmitting control component 13 and the color substrate 15 stacked in order. The light transmission control component 13 includes a pixel blocking layer 131, and a plurality of light emitting holes 132 which are distributed in an array and penetrate through the pixel blocking layer 131 are formed on one side of the pixel blocking layer 131 opposite to the array substrate 11. The light transmission control assembly 13 further includes an insulating solution 133 filled in the plurality of light exit holes 132 and a plurality of charged particles 135 dispersed in the insulating solution 133. The preset electric field drives the plurality of charged particles 135 to move toward the array substrate 11 or away from the array substrate 11 in the light exit hole 132, so as to control the dispersion degree of the plurality of charged particles 135 in the light exit hole 132, and further adjust the transmittance of the light transmission control component 13. Therefore, the display panel 10 of the present application has different transmittance of the light emitting holes 132 due to different shielding degrees of the backlight provided by the backlight module 30 by the charged particles 135. The backlight provided by the backlight module 30 does not refract in the light-transmitting control assembly 13, so that the loss of the backlight in the light-transmitting control assembly 13 is reduced, the utilization rate of the backlight is improved, and the transmittance of the display panel 10 is improved. Compared with the high-temperature instability of liquid crystal molecules (the liquid crystal molecules reach a phase change node at 80 ℃ to fail), the display panel provided by the application can normally work in an environment of 100 ℃.
In the embodiment of the present application, referring to fig. 2, the aperture of the light exit hole 132 gradually increases in the direction in which the array substrate 11 points to the color substrate 15. That is, as the depth of the light exit hole 132 increases, the aperture of the light exit hole 132 gradually decreases. Wherein depth refers to the distance from the color substrate 15 to the array substrate 11.
It is understood that the aperture of the light exit aperture 132 is inversely related to the depth thereof, and the dispersity of the plurality of charged particles 135 is positively related to the aperture of the light exit aperture 132. Accordingly, the dispersity of the plurality of charged particles 135 is inversely related to the depth thereof at the light exit aperture 132. The larger the depth of the plurality of charged particles 135 in the light exit hole 132 is, the smaller the dispersity of the plurality of charged particles 135 is; the smaller the depth of the charged particles 135 in the light exit hole 132, the larger the dispersion degree of the charged particles 135, so as to realize the light exit hole 132 with different transmittance, and further make the display panel 10 display different gray scales.
In an exemplary embodiment, referring to fig. 4, fig. 4 is a schematic view illustrating a first display state of a display panel according to a second embodiment of the present application. The depth of the plurality of charged particles 135 in fig. 4 is the largest in the light exit hole 132, that is, the plurality of charged particles 135 move to a position closest to the array substrate 11 in the light exit hole 132. At this time, the dispersion degree of the plurality of charged particles 135 is minimum, the transmittance of the light emitting holes 132 is minimum, and the display panel 10 displays the minimum gray scale.
In an exemplary embodiment, referring to fig. 5, fig. 5 is a schematic diagram illustrating a second display state of a display panel according to a second embodiment of the present application. The depth of the plurality of charged particles 135 in fig. 5 in the light exit aperture 132 is smallest, i.e. the plurality of charged particles 135 move to a position closest to the color substrate 15 in the light exit aperture 132. At this time, the dispersion degree of the plurality of charged particles 135 is maximum, the transmittance of the light emitting holes 132 is maximum, and the display panel 10 displays the maximum gray scale.
In an exemplary embodiment, referring to fig. 6, fig. 6 is a schematic diagram illustrating a third display state of a display panel according to a second embodiment of the present application. The plurality of charged particles 135 in fig. 6 have a depth in the light exit aperture 132 between a maximum depth and a minimum depth. At this time, the dispersion degree of the plurality of charged particles 135 is between the minimum dispersion degree and the maximum dispersion degree, the transmittance of the light emitting holes 132 is also between the minimum transmittance and the maximum transmittance, and the gray scale displayed by the display panel 10 is also between the maximum gray scale and the minimum gray scale.
It should be understood that, for the sake of understanding the technical solution of the present application, fig. 4 to 6 are only individual embodiments of the display states of the display panel 10. According to the display of different pictures, the transmittance of the light exit holes 132 of the display panel 10, that is, the depth of the charged particles 135 in the light exit holes 132, is adaptively set.
In an exemplary embodiment, the overall shape of the light emitting hole 132 may be a prismatic table shape or a truncated cone shape, which is not particularly limited in the present application. The overall shape of the cross section of the light exit hole 132 along the direction of the array substrate 11 toward the color substrate 15 may be a trapezoid.
In the embodiment of the application, referring to fig. 2, the light exit hole 132 includes a first opening 132a and a second opening 132b, the first opening 132a faces the color substrate 15, the second opening 132b faces the array substrate 11, and the caliber of the first opening 132a is larger than the caliber of the second opening 132 b.
In an embodiment of the present application, the ratio of the area where the charged particles 135 are connected and tiled to the area corresponding to the first opening 132a may be less than or equal to 0.9, for example, 0.1, 0.2, 0.4, 0.5, 0.55, 0.6, 0.8, 0.9, or other values, which is not particularly limited by the present application. Wherein a plurality of the charged particles 135 are connected and tiled means that: the plurality of charged particles 135 are distributed in a single layer and are connected to each other so as to be located on the same plane as each other.
As can be understood, referring to fig. 2 and fig. 5 together, since the aperture of the first opening 132a is the maximum aperture of the light exit hole 132, when the charged particles 135 move to the plane of the first opening 132a, the charged particles 135 are distributed in a single layer, and at this time, the transmittance of the light exit hole 132 is the maximum. If the charged particles 135 are connected and the ratio of the area formed by tiling to the area corresponding to the first opening 132a is greater than or equal to 1, the light emitting hole 132 is opaque. If the charged particles 135 are connected and the ratio of the area formed by tiling to the area corresponding to the first opening 132a is greater than 0.9 and less than 1, the light transmittance of the light emitting hole 132 is smaller. Therefore, the ratio of the area formed by the connection and tiling of the plurality of charged particles 135 to the area corresponding to the first opening 132a is less than or equal to 0.9, and the plurality of charged particles 135 are dispersed when moving to the first opening 132a, so that a certain gap is formed between the plurality of charged particles 135 moving to the first opening 132a, and light can pass through the light emitting hole 132.
It is further understood that the smaller the ratio of the area formed by the connection and tiling of the plurality of charged particles 135 to the area corresponding to the first opening 132a, the larger the gap between the plurality of charged particles 135 moving to the first opening 132a, and the larger the transmittance of the light exit hole 132.
In an embodiment of the present application, the ratio of the area where the charged particles 135 are connected and tiled to the area corresponding to the second opening 132b may be 1 to 1.2, for example, 1, 1.05, 1.1, 1.12, 1.15, 1.18, 1.2, or other values, which are not particularly limited by the present application. In one embodiment of the present application, the charged particles 135 are connected and the ratio of the area formed by tiling to the area corresponding to the second opening 132b is 1.
It can be understood that referring to fig. 2 and fig. 4 together, since the aperture of the second opening 132b is the minimum aperture of the light exit hole 132, when the charged particles 135 move to the plane of the second opening 132b, the transmittance of the light exit hole 132 is minimum. If the charged particles 135 are connected and the ratio of the area formed by tiling to the area corresponding to the second opening 132b is 1, the charged particles 135 can just block the backlight entering the light exit hole 132, i.e. the light exit hole 132 is opaque. Considering that there is a case where the charged particles 135 overlap when the charged particles 135 move to the plane in which the second openings 132b are located, at this time, the charged particles 135 are connected and the ratio of the area formed by tiling to the area corresponding to the second openings 132b is greater than 1; however, when the charged particles 135 are connected and the ratio of the area formed by tiling to the area corresponding to the second opening 132b is too large, the light exit hole 132 may remain opaque after the charged particles 135 move a certain distance from the second opening 132b to the first opening 132a, and therefore, the ratio of the area formed by tiling to the area corresponding to the second opening 132b is set to be 1 to 1.2.
In an exemplary embodiment, the orthographic projection of the plane of the second opening 132b on the array substrate 11 is located within the orthographic projection of the plane of the first opening 132a on the array substrate 11. Further, the orthographic projection of the geometric center point of the first opening 132a on the array substrate 11 coincides with the orthographic projection of the geometric center point of the second opening 132b on the array substrate 11.
In an exemplary embodiment, the planar shapes of the first opening 132a and the second opening 132b may be circular or polygonal, wherein the polygonal shape includes, but is not limited to, triangle, rectangle, diamond, trapezoid, etc., which is not particularly limited in the present application.
In the embodiment of the application, referring to fig. 2, the array substrate 11 includes a plurality of pixel electrodes 111 and a driving circuit layer 113, and the pixel electrodes 111 are embedded in the pixel barrier layer 131 and are located at the second openings 132 b. A surface of the pixel electrode 111 exposes a surface of the pixel blocking layer 131 opposite to the color substrate 15. The driving circuit layer 113 is disposed on a side of the pixel barrier layer 131 where the pixel electrode 111 is exposed, that is, the driving circuit layer 113 is disposed on a side of the pixel barrier layer 131 opposite to the color substrate 15, and the driving circuit layer 113 is connected to the plurality of pixel electrodes 111 to be electrically connected to the plurality of pixel electrodes 111. The driving circuit layer 113 is for controlling the potential of each of the pixel electrodes 111.
In the embodiment of the present application, the positions of the plurality of pixel electrodes 111 and the positions of the plurality of light emitting holes 132 are in one-to-one correspondence, that is, the orthographic projection of the inner wall of one light emitting hole 132 on the driving circuit layer 113 coincides with or partially coincides with the orthographic projection of one pixel electrode 111 on the driving circuit layer 113. That is, the front projection of the first opening 132a of the light exit hole 132 on the driving circuit layer 113 at least partially coincides with the front projection of one pixel electrode 111 on the driving circuit layer 113.
In an exemplary embodiment, the pixel electrode 111 seals the second opening 132b of the light emitting hole 132, preventing the insulating solution 133 from leaking.
In an exemplary embodiment, the driving circuit layer 113 may control the electric potentials of the plurality of pixel electrodes 111 by Passive driving (PM) or Active driving (AM). Wherein passive driving refers to: the driving circuit layer 113 directly applies a pulse current to the pixel electrode 111; active driving refers to: the driving circuit layer 113 is provided with a thin film transistor having a switching function and a capacitor storing electric charges for each of the pixel electrodes 111.
In an exemplary embodiment, the array substrate 11 further includes a substrate 115, and the substrate 115 is disposed on a side of the driving circuit layer 113 opposite to the pixel electrode 111. The substrate 115 has good transparency, and avoids influencing the transmittance of the display panel 10.
In the embodiment of the present application, referring to fig. 2, the color substrate 15 includes a common electrode layer 151, and the common electrode layer 151 is disposed on a side of the pixel blocking layer 131 opposite to the array substrate 11 and covers the light emitting holes 132. The common electrode layer 151 forms the preset electric field with the pixel electrode 111.
In an exemplary embodiment, the common electrode layer 151 seals the first openings 132a of the plurality of light emitting holes 132, preventing the insulating solution 133 from leaking.
In the embodiment of the present application, the peripheral side surface of the pixel electrode 111 is aligned with the periphery of the plane where the first opening 132a is located, so that the range of the preset electric field formed by the pixel electrode 111 and the common electrode layer 151 may just cover the entire light emitting hole 132.
It is understood that if the peripheral surface of the pixel electrode 111 extends beyond the periphery of the plane in which the first opening 132a is located, for example, the width of the left and right sides of the pixel electrode 111 shown in fig. 2 is greater than the width of the left and right sides of the first opening 132 a. At this time, the preset electric field is also formed on the outer side of the corresponding pillar of the first opening 132a, so that the corresponding size of each sub-pixel (one separately controlled light emitting area is one sub-pixel) is too large, which is not beneficial to improving the resolution of the display panel 10 and to forming the display panel 10 with a small size. If the peripheral edge of the plane in which the first opening 132a is located extends beyond the peripheral side surface of the pixel electrode 111, for example, the width of the left and right sides of the first opening 132a shown in fig. 2 is greater than the width of the left and right sides of the pixel electrode 111. At this time, the preset electric field is not formed at the periphery of the plane in which the first opening 132a is located, so that the charged particles 135 do not move to the periphery of the plane in which the first opening 132a is located, and the distribution of the plurality of charged particles 135 may be too concentrated, so that the backlight exiting from the first opening 132a may be uneven.
In the embodiment of the present application, the color substrate 15 further includes a light shielding layer 153, a plurality of first color resists 154, a plurality of second color resists 155, and a plurality of third color resists 156. The light shielding layer 153 is provided with a plurality of light holes 153a penetrating the light shielding layer 153 and arranged at intervals, and one of the first color resistor 154, the second color resistor 155 and the third color resistor 156 is respectively accommodated in one of the light holes 153 a. The first color resistor 154 is used to convert the backlight to a first color light, the second color resistor 155 is used to convert the backlight to a second color light, and the third color resistor 156 is used to convert the backlight to a third color light. The light shielding layer 153 is used for avoiding color crosstalk at a position corresponding to an adjacent color resistor, that is, the light shielding layer 153 may be used for avoiding color crosstalk at a position corresponding to the first color resistor 154, a position corresponding to the second color resistor 155, and a position corresponding to the third color resistor 156.
In an exemplary embodiment, the backlight may be white light, the first color resist 154 may be red color resist, the second color resist 155 may be green color resist, and the third color resist 156 may be blue color resist. Accordingly, the first color light may be red light, the second color light may be green light, and the third color light may be blue light, so as to realize full-color display.
In an exemplary embodiment, the first color resistor 154 may be a red filter color resistor material or a red quantum dot light emitting material, the second color resistor 155 may be a green filter color resistor material or a green quantum dot light emitting material, and the third color resistor 156 may be a blue filter color resistor material or a blue quantum dot light emitting material, which is not particularly limited in the present application.
In an exemplary embodiment, a plurality of the first color resistors 154, a plurality of the second color resistors 155, and a plurality of the third color resistors 156 may be alternately arranged in sequence at intervals. That is, the plurality of first color resists 154, the plurality of second color resists 155, and the plurality of third color resists 156 may be as follows: the first color resistor 154, the second color resistor 155, the third color resistor 156, the first color resistor 154, the second color resistor 155, the third color resistors 156, … …, the first color resistor 154, the second color resistor 155, and the third color resistor 156 are arranged in a manner. It is to be understood that the plurality of first color resists 154, the plurality of second color resists 155, and the plurality of third color resists 156 may be arranged in other arrangements, which are not particularly limited in the present application.
In an exemplary embodiment, the peripheral side of the first color resistor 154 is aligned with the peripheral side of its corresponding pixel electrode 111, the peripheral side of the second color resistor 155 is aligned with the peripheral side of its corresponding pixel electrode 111, and the peripheral side of the third color resistor 156 is aligned with the peripheral side of its corresponding pixel electrode 111. That is, the front projection of the first color resist 154 on the driving circuit layer 113 coincides with the front projection of the pixel electrode 111 on the driving circuit layer 113, the front projection of the second color resist 155 on the driving circuit layer 113 coincides with the front projection of the pixel electrode 111 on the driving circuit layer 113, and the front projection of the third color resist 156 on the driving circuit layer 113 coincides with the front projection of the pixel electrode 111 on the driving circuit layer 113.
In the embodiment of the present application, one of the first color resists 154 and the corresponding light emitting hole 132, the insulating solution 133, the plurality of charged particles 135, and the pixel electrode 111 constitute one sub-pixel, one of the second color resists 155 and the corresponding light emitting hole 132, the insulating solution 133, the plurality of charged particles 135, and the pixel electrode 111 constitute one sub-pixel, and one of the third color resists 156 and the corresponding light emitting hole 132, the insulating solution 133, the plurality of charged particles 135, and the pixel electrode 111 constitute one sub-pixel. Three sub-pixels are sequentially arranged to form a pixel, one pixel can emit red light, green light and blue light, and a plurality of pixels are distributed in an array. A plurality of the pixels may display various patterns under the control of the driving circuit layer 113.
In an embodiment of the application. The color substrate 15 further includes an encapsulation layer 158, where the encapsulation layer 158 is disposed on a side of the light shielding layer 153 opposite to the common electrode layer 151 and covers the plurality of first color resistors 154, the plurality of second color resistors 155, and the plurality of third color resistors 156. The encapsulation layer 158 is used to protect the color resistor from being affected by impurities such as air, water vapor or dust, which may reduce the service life of the color resistor or damage the color resistor. The color resists include the first color resist 154, the second color resist 155, and the third color resist 156.
Based on the same inventive concept, the embodiment of the present application also provides a second display panel, please refer to fig. 7, fig. 7 is a schematic diagram of a second layer structure of the display panel disclosed in the second embodiment of the present application. The display panel 10a of the second layer structure is different from the display panel 10 of the first layer structure in that: the common electrode layer 151 includes a plurality of electrode elements 151a and a plurality of conductive elements 151b. For a description of the second layer structure of the display panel 10a, which is the same as the first layer structure of the display panel 10, please refer to the related description of the first layer structure of the display panel 10, and the description is omitted herein.
In the embodiment of the present application, the common electrode layer 151 includes a plurality of electrode elements 151a and a plurality of conductive elements 151b, the plurality of electrode elements 151a are distributed in an array, and the conductive elements 151b are connected between two adjacent electrode elements 151a so as to electrically connect the plurality of electrode elements 151 a.
In an exemplary embodiment, the positions of the plurality of electrode elements 151a correspond to the positions of the plurality of pixel electrodes 111 one by one, that is, the orthographic projection of one of the pixel electrodes 111 on the driving circuit layer 113 is located within the orthographic projection of one of the electrode elements 151a on the driving circuit layer 113.
In the embodiment of the present application, the height of the surface of the pixel electrode 111 facing the electrode element 151a gradually decreases in a direction from the center of the pixel electrode 111 toward the periphery of the pixel electrode 111. That is, the surface of the pixel electrode 111 facing the electrode element 151a protrudes toward the light emitting hole 132. The height of the surface of the electrode element 151a facing the pixel electrode 111 gradually decreases in a direction from the center of the electrode element 151a toward the periphery of the electrode element 151 a. That is, the surface of the electrode element 151a facing the pixel electrode 111 is concave toward the surface of the electrode element 151a facing away from the pixel electrode 111.
In an exemplary embodiment, the entire shape of the cross section of the light exit hole 132 along the direction of the array substrate 11 toward the color substrate 15 may be a fan ring. The surface of the pixel electrode 111 facing the electrode element 151a is a plane corresponding to an inner arc of a fan ring, and the surface of the electrode element 151a facing the pixel electrode 111 is a plane corresponding to an outer arc of the fan ring, wherein the arc length of the outer arc is greater than the arc length of the inner arc.
It can be understood that referring to fig. 8, fig. 8 is a schematic diagram of the light transmission adjustment principle of the display panel shown in fig. 7, and the dotted line between the pixel electrode 111 and the electrode element 151a in fig. 8 is an electric field line. The direction of the preset electric field formed between the electrode element 151a and the pixel electrode 111: the electrode elements 151a directed from the pixel electrode 111 are distributed in a scattering manner or the electrode elements 151a are gradually gathered toward the pixel electrode 111. When the preset electric field drives the plurality of charged particles 135 to move in the direction of the electrode element 151a, the plurality of charged particles 135 are dispersed more uniformly based on the direction of the preset electric field, so that the backlight exiting from the light exit hole 132 is more uniform. When the preset electric field drives the plurality of charged particles 135 to move toward the pixel electrode 111, the plurality of charged particles 135 are more uniformly gathered based on the direction of the preset electric field, so that the backlight exiting from the light exit hole 132 is more uniform.
In an exemplary embodiment, the positions of the light shielding layer 153 excluding portions of the plurality of light transmission holes 153a correspond to positions of the plurality of conductive elements 151 b. That is, the front projection of the light shielding layer 153 excluding the portions of the light holes 153a on the pixel barrier layer 131 overlaps or partially overlaps with the front projection of the conductive elements 151b on the pixel barrier layer 131.
In summary, the display panel 10a provided in the embodiment of the application includes the array substrate 11, the light-transmitting control component 13 and the color substrate 15 stacked in order. The light transmission control component 13 includes a pixel blocking layer 131, and a plurality of light emitting holes 132 which are distributed in an array and penetrate through the pixel blocking layer 131 are formed on one side of the pixel blocking layer 131 opposite to the array substrate 11. The light transmission control assembly 13 further includes an insulating solution 133 filled in the plurality of light exit holes 132 and a plurality of charged particles 135 dispersed in the insulating solution 133. The preset electric field drives the plurality of charged particles 135 to move toward the array substrate 11 or away from the array substrate 11 in the light exit hole 132, so as to control the dispersion degree of the plurality of charged particles 135 in the light exit hole 132, and further adjust the transmittance of the light transmission control component 13. Therefore, the display panel 10a of the present application has different transmittance through the different shielding degrees of the backlight provided by the backlight module 30 by the charged particles 135 to the light emitting holes 132. The backlight provided by the backlight module 30 does not refract in the light-transmitting control assembly 13, so that the loss of the backlight in the light-transmitting control assembly 13 is reduced, the utilization rate of the backlight is improved, and the transmittance of the display panel 10a is improved.
Based on the same inventive concept, a third embodiment of the present application provides a manufacturing method of a display panel for manufacturing the display panel shown in fig. 1 to 8. In the content of the display panel related to the manufacturing method of the display panel provided by the third embodiment of the present application, please refer to the related description of the display panel of the first embodiment and the second embodiment, which is not repeated here. Referring to fig. 9, fig. 9 is a flowchart illustrating a method for manufacturing a display panel according to a third embodiment of the present application, where the method for manufacturing a display panel may include the following steps.
S10, forming an array substrate 11.
In an exemplary embodiment, referring to fig. 10, fig. 10 is a schematic structural diagram corresponding to step S10 of a manufacturing method of a display panel according to a third embodiment of the present application. The array substrate 11 includes a substrate 115, a driving circuit layer 113, and a plurality of pixel electrodes 111. The driving circuit layer 113 is disposed on a side of the substrate 115, and the plurality of pixel electrodes 111 are distributed on a side of the driving circuit layer opposite to the substrate 115.
S20, a pixel blocking layer 131 is formed on one side of the array substrate 11, and a plurality of light emitting holes 132 penetrating the pixel blocking layer 131 are formed on the pixel blocking layer 131.
Specifically, referring to fig. 11, fig. 11 is a schematic structural diagram corresponding to step S20 of a method for manufacturing a display panel according to a third embodiment of the present application. In the embodiment of the application, a pixel blocking layer 131 is formed on a side of the pixel electrodes 111 facing away from the driving circuit layer 113 and a side of the driving circuit layer 113 facing away from the substrate 115, and a plurality of light emitting holes 132 are formed on a side of the pixel blocking layer 131 facing away from the driving circuit layer 113, wherein the light emitting holes 132 are distributed in an array and penetrate through the pixel blocking layer 131, and a part of the surface of the pixel electrode 111 facing away from the driving circuit layer 113 is exposed out of the light emitting holes 132. The positions of the light emitting holes 132 are in one-to-one correspondence with the positions of the pixel electrodes 111, that is, the orthographic projection of the inner wall of one light emitting hole 132 on the driving circuit layer 113 coincides with or partially coincides with the orthographic projection of one pixel electrode 111 on the driving circuit layer 113.
In an exemplary embodiment, the patterned pixel blocking layer 131 may be formed through a spray printing process or a photolithography process, i.e., the pixel blocking layer 131 is formed to have been opened with a plurality of the light emitting holes 132. The photoetching process comprises the processes of coating, exposing, developing and the like. The pixel barrier layer 131 has good adhesion, so that sealing performance between the pixel barrier layer 131 and the pixel electrode 111 is good.
And S30, injecting an insulating solution 133 into each light emergent hole 132 and a plurality of charged particles 135.
Specifically, referring to fig. 12, fig. 12 is a schematic structural diagram corresponding to step S30 of the manufacturing method of the display panel according to the third embodiment of the present application. In the embodiment of the present application, a mixed solution having an insulating solution 133 and a plurality of charged particles 135 is injected into each of the light emitting holes 132, and the mixed solution fills the entire light emitting holes 132.
In an exemplary embodiment, the insulating solution 133 is an insulating slurry having a density similar to that of the charged particles 135.
And S40, forming a color substrate 15 on one side of the pixel blocking layer 131 opposite to the array substrate 11, wherein the color substrate 15 covers the light emitting holes 132.
In an exemplary embodiment, referring to fig. 13, fig. 13 is a schematic structural diagram corresponding to step S40 of a method for manufacturing a display panel according to a third embodiment of the present application. The color substrate 15 includes a common electrode layer 151, a light shielding layer 153, a plurality of first color resists 154, a plurality of second color resists 155, a plurality of third color resists 156, and an encapsulation layer 158. The common electrode layer 151 is disposed on a side of the pixel blocking layer 131 opposite to the array substrate 11, and covers the light emitting holes 132. The light shielding layer 153 is provided with a plurality of light holes 153a penetrating the light shielding layer 153 and arranged at intervals, and one of the first color resistor 154, the second color resistor 155 and the third color resistor 156 is respectively accommodated in one of the light holes 153 a. The encapsulation layer 158 is disposed on a side of the light shielding layer 153 opposite to the common electrode layer 151, and covers the plurality of first color resistors 154, the plurality of second color resistors 155, and the plurality of third color resistors 156.
In the embodiment of the application, referring to fig. 14, fig. 14 is a flowchart of step S10 in the method for manufacturing the display panel shown in fig. 9. The step S10 may include the following steps.
S11, providing a substrate 115.
In an exemplary embodiment, the substrate 115 may be a transparent substrate.
S12, a driving circuit layer 113 is formed on one side of the substrate 115.
Specifically, referring to fig. 15, fig. 15 is a schematic structural diagram corresponding to step S12 of a method for manufacturing a display panel according to a third embodiment of the present application. In the embodiment of the present application, the driving circuit layer 113 may be formed on one side of the substrate 115 through a photolithography process, sputtering, chemical vapor deposition, and the like.
S13, a plurality of pixel electrodes 111 are formed on a side of the driving circuit layer 113 facing away from the substrate 115 and are distributed in an array.
Specifically, referring to fig. 10, in an embodiment of the present application, a plurality of pixel electrodes 111 are formed in an array on a side of the driving circuit layer 113 opposite to the substrate 115 by a physical vapor deposition technique.
In an exemplary embodiment, the material of the pixel electrode 111 may be Indium Tin Oxide (ITO).
In an embodiment of the present application, referring to fig. 16, fig. 16 is a flowchart of step S40 in the method for manufacturing the display panel shown in fig. 9, where the step S40 may include the following steps.
S41, a common electrode layer 151 is formed on a side of the pixel blocking layer 131 opposite to the array substrate 11, where the common electrode layer 151 covers the light emitting holes 132.
Specifically, referring to fig. 17, fig. 17 is a schematic structural diagram corresponding to step S41 of a method for manufacturing a display panel according to a third embodiment of the present application. In the embodiment of the present application, the common electrode layer 151 may be formed on the side of the pixel barrier layer 131 opposite to the array substrate 11 by a physical vapor deposition technology.
In an exemplary embodiment, the material of the common electrode layer 151 may be indium tin oxide.
S42, a light shielding layer 153 is formed on a side of the common electrode layer 151 facing away from the pixel blocking layer 131, and a plurality of light holes 153a distributed in an array and penetrating the light shielding layer 153 are formed on the light shielding layer 153.
In an exemplary embodiment, referring to fig. 18, fig. 18 is a schematic structural diagram corresponding to step S42 of a method for manufacturing a display panel according to a third embodiment of the present application. The patterned light shielding layer 153 may be formed by a photolithography process, that is, the light shielding layer 153 is formed with a plurality of light holes 153a, and the light holes 153a are distributed in an array and penetrate through the light shielding layer 153.
S43, a plurality of first color resistors 154, a plurality of second color resistors 155 and a plurality of third color resistors 156 are respectively formed in the plurality of light-transmitting holes 153a, and one of the first color resistors 154, one of the second color resistors 155 and one of the third color resistors 156 are respectively formed in one of the light-transmitting holes 153 a.
In an exemplary embodiment, referring to fig. 19, fig. 19 is a schematic structural diagram corresponding to step S43 of a method for manufacturing a display panel according to a third embodiment of the present application. A plurality of first color resists 154, a plurality of second color resists 155, and a plurality of third color resists 156 may be formed in the plurality of light transmission holes 153a, respectively, through a photolithography process.
S44, an encapsulation layer 158 is formed on a side of the light shielding layer 153 opposite to the common electrode layer 151, and the encapsulation layer 158 covers the plurality of first color resistors 154, the plurality of second color resistors 155, and the plurality of third color resistors 156.
In an exemplary embodiment, referring to fig. 13, a dense encapsulation layer 158 may be formed on a side of the light shielding layer 153 opposite to the common electrode layer 151 by a chemical vapor deposition process, wherein the encapsulation layer 158 covers the plurality of first color resistors 154, the plurality of second color resistors 155, and the plurality of third color resistors 156.
In an embodiment of the present application, the material of the encapsulation layer 158 may be silicon dioxide, and the thickness of the encapsulation layer 158 is 5000 to 50000 angstromsFor example, 5000 angstroms, 10000 angstroms, 20000 angstroms, 25000 angstroms, 40000 angstroms, 50000 angstroms, or other values, to which the present application is not limited in particular. Wherein 1 angstrom is equal to 0.1 nanometers.
For convenience of showing the drawings, a schematic structural diagram formed correspondingly by each step of the manufacturing method of the display panel is a display panel 10 with a first layer structure. It will be appreciated that the method of manufacturing a display panel may not only form the display panel 10 of the first layer structure but also form the display panel 10a of the second layer structure.
In summary, the manufacturing method of the display panel provided by the embodiment of the application includes: forming an array substrate 11; forming a pixel blocking layer 131 on one side of the array substrate 11, and forming a plurality of light emitting holes 132 which are distributed in an array and penetrate through the pixel blocking layer 131 on one side of the pixel blocking layer 131 opposite to the array substrate 11; injecting an insulating solution 133 and a plurality of charged particles 135 into each of the light exit holes 132; a color substrate 15 is formed on a side of the pixel blocking layer 131 opposite to the array substrate 11, and the color substrate 15 covers the light emitting holes 132. The array substrate 11 and the color substrate 15 are used for forming a preset electric field, and the preset electric field drives the plurality of charged particles 135 to move toward the array substrate 11 or away from the array substrate 11 in the light emitting holes 132, so as to control the dispersity of the plurality of charged particles 135 in the light emitting holes 132, and further adjust the transmittance of the light transmission control component 13. Therefore, the manufacturing method of the display panel of the present application forms the display panel of the first embodiment and the second embodiment, and the shielding degree of the backlight provided by the backlight module 30 by the plurality of charged particles 135 is different, so as to realize different transmittance of the light emitting holes 132. The backlight provided by the backlight module 30 does not refract in the light-transmitting control assembly 13, so that the loss of the backlight in the light-transmitting control assembly 13 is reduced, the utilization rate of the backlight is improved, and the transmittance of the display panel is improved.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
It is to be understood that the application is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims. Those skilled in the art will recognize that the full or partial flow of the embodiments described above can be practiced and equivalent variations of the embodiments of the present application are within the scope of the appended claims.

Claims (6)

1. A display panel comprises an array substrate and a color substrate which are opposite and arranged at intervals, wherein a preset electric field is formed between the array substrate and the color substrate,
The display panel further comprises a light transmission control component arranged between the array substrate and the color substrate, the light transmission control component comprises a pixel blocking layer, an insulating solution and a plurality of charged particles, the pixel blocking layer is provided with a plurality of light outlet holes penetrating through the pixel blocking layer, the light outlet holes comprise a first opening and a second opening, the first opening faces the color substrate, the second opening faces the array substrate, and the aperture of the light outlet holes is gradually increased in the direction that the array substrate points to the color substrate; the insulating solution is filled in the light emergent holes, the charged particles are dispersed in the insulating solution, and the charged particles are used for shielding light;
The array substrate comprises a plurality of pixel electrodes which are embedded in the pixel blocking layer and positioned at the second opening, and the positions of the plurality of pixel electrodes correspond to the positions of the plurality of light emitting holes; the color substrate comprises a common electrode layer, the common electrode layer is arranged on one side of the pixel blocking layer, which is opposite to the array substrate, and covers a plurality of light emitting holes, the common electrode layer comprises a plurality of electrode elements and a plurality of conductive elements, the positions of the electrode elements correspond to the positions of the pixel electrodes, the conductive elements are connected between two adjacent electrode elements so as to electrically connect the electrode elements, and the common electrode layer and the pixel electrodes form the preset electric field; wherein the surface of the pixel electrode facing the electrode element is convex towards the light emitting hole, and the surface of the electrode element facing the pixel electrode is concave towards the surface of the electrode element facing away from the pixel electrode;
The preset electric field drives the charged particles to move in the light outlet holes towards the array substrate or away from the array substrate, so as to control the dispersity of the charged particles in the light outlet holes and further adjust the transmittance of the light transmission control component.
2. The display panel of claim 1, wherein a ratio of an area formed by the connection and tiling of the plurality of charged particles to an area corresponding to the first opening is less than or equal to 0.9.
3. The display panel of claim 1, wherein a ratio of an area formed by the connection and tiling of the plurality of charged particles to an area corresponding to the second opening is 1 to 1.2.
4. A display panel as claimed in any one of claims 1 to 3, characterized in that the charged particles comprise a core, a charged layer and an insulating layer, the charged layer wrapping the surface of the core, the insulating layer wrapping the outer surface of the charged layer, the core being for shading light, the charged layer being moved by the preset electric field, the insulating layer insulating the outer surface of the charged layer.
5. A method for manufacturing a display panel according to any one of claims 1 to 4, wherein the method for manufacturing a display panel comprises:
Forming an array substrate;
Forming a pixel blocking layer on one side of the array substrate, and forming a plurality of light emitting holes penetrating through the pixel blocking layer on the pixel blocking layer;
injecting an insulating solution into each light emergent hole and a plurality of charged particles;
And forming a color substrate on one side of the pixel blocking layer, which is opposite to the array substrate, wherein the color substrate covers the light emitting holes.
6. A display device comprising a backlight module and the display panel according to any one of claims 1-4, wherein the display panel is disposed on a light emitting side of the backlight module.
CN202310243698.9A 2023-03-14 2023-03-14 Display panel, manufacturing method of display panel and display device Active CN116360174B (en)

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CN202310243698.9A CN116360174B (en) 2023-03-14 2023-03-14 Display panel, manufacturing method of display panel and display device

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