CN108845463B - Display panel and display method thereof - Google Patents
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- CN108845463B CN108845463B CN201810785662.2A CN201810785662A CN108845463B CN 108845463 B CN108845463 B CN 108845463B CN 201810785662 A CN201810785662 A CN 201810785662A CN 108845463 B CN108845463 B CN 108845463B
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 69
- 239000000758 substrate Substances 0.000 claims abstract description 65
- 229920000642 polymer Polymers 0.000 claims description 25
- 238000006116 polymerization reaction Methods 0.000 claims description 22
- 230000005684 electric field Effects 0.000 claims description 11
- 239000010408 film Substances 0.000 description 9
- 239000010409 thin film Substances 0.000 description 9
- 230000008901 benefit Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL 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
- G02F1/00—Devices 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
- G02F1/01—Devices 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
- G02F1/13—Devices 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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL 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
- G02F1/00—Devices 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
- G02F1/01—Devices 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
- G02F1/13—Devices 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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL 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
- G02F1/00—Devices 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
- G02F1/01—Devices 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
- G02F1/13—Devices 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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL 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
- G02F1/00—Devices 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
- G02F1/01—Devices 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
- G02F1/13—Devices 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 liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
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Abstract
The invention discloses a display panel and a display method thereof. First, a display panel is provided, wherein the display panel includes a first substrate, a liquid crystal layer and a second substrate. The liquid crystal layer is positioned between the first substrate and the second substrate. The first substrate has a first transparent electrode on a first side thereof, and the second substrate has a second transparent electrode and a third transparent electrode on a second side thereof. The third transparent electrode is located on the first side of the second transparent electrode and is overlapped with part of the second transparent electrode. Then, the first data signal is continuously input to the second transparent electrode through the first data line. And, a second data signal is continuously input to the third transparent electrode via the second data line. Then, the display panel is subjected to light irradiation treatment to polymerize the photopolymerizable molecules in the liquid crystal layer. And stopping inputting the first data signal and the second data signal when the photopolymerization molecule is polymerized. The invention can improve the color cast phenomenon of the display panel.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display method thereof.
Background
Thin Film Transistor Liquid Crystal displays (TFT-LCDs) still dominate the current flat panel Display field due to their advantages of high color saturation, small size, low power consumption, etc. As for the display panel of the tft-lcd currently on the mainstream market, there are three types, namely, Twisted Nematic (TN) or Super Twisted Nematic (STN) type, In-Plane Switching (IPS) type, and Vertical Alignment (VA) type. Among them, the vertical alignment liquid crystal display has a very high contrast ratio compared to other kinds of liquid crystal displays, and has a very wide application in large-size displays such as televisions.
In the related field of Vertical Alignment liquid crystal displays, a Polymer Stabilized Vertical Alignment (PSVA) technology is currently widely applied in the industry. The technology dopes the photo-polymerization molecules into the liquid crystal, applies proper voltage to the liquid crystal layer, and when the voltage is applied to ensure that the liquid crystal molecules are arranged stably, the photo-polymerization molecules in the liquid crystal are subjected to polymerization reaction in an ultraviolet irradiation or heating mode to generate a polymer layer so that the liquid crystal has an initial Pre-tilt Angle (Pre-tilt Angle), thereby achieving the purpose of stabilizing the vertical alignment of the polymer. The polymer protrusion is formed on the surface of the alignment film, so that the liquid crystal molecules have a pretilt angle, and the liquid crystal display panel has the advantages of high contrast, wide viewing angle, low power consumption, fast response, high penetration rate and the like.
However, in the transition from the low gray level to the high gray level, the liquid crystal is turned from the vertical state to the horizontal state, which causes the light to directly affect the visual characteristics of the display panel through different phase differences when the user views the display panel at different viewing angles. In order to increase the viewing angle and reduce the chromatic aberration, multiple liquid crystal domains (domains) are commonly used in the related art for compensation.
Disclosure of Invention
The invention provides a display panel and a display method thereof.
The invention provides a display method of a display panel, which is characterized by comprising the following steps: providing a display panel, wherein the display panel comprises a first substrate, a liquid crystal layer and a second substrate, the liquid crystal layer is positioned between the first substrate and the second substrate, a first transparent electrode is arranged on a first side of the first substrate, a second transparent electrode and a third transparent electrode are arranged on a second side of the second substrate, and the third transparent electrode is positioned on the first side of the second transparent electrode and is overlapped with part of the second transparent electrode; continuously inputting a first data signal to the second transparent electrode through a first data line; continuously inputting a second data signal to the third transparent electrode through a second data line; performing light treatment on the display panel to polymerize the photo-polymerization molecules in the liquid crystal layer; and stopping inputting the first data signal and the second data signal when the polymerization of the photo-polymerization molecules is finished.
In an embodiment of the invention, a region where the second transparent electrode overlaps the third transparent electrode has a stronger electric field than a region where the second transparent electrode does not overlap the third transparent electrode.
The present invention also provides a display panel, comprising: a first substrate; the first transparent electrode is positioned on the first surface of the first substrate; a second substrate positioned at a first side of the first substrate to face the first substrate; a second transparent electrode on the second substrate, facing the first transparent electrode; a third transparent electrode between the second substrate and the second transparent electrode, facing the second transparent electrode, the third transparent electrode overlapping with a portion of the second transparent electrode; the insulating layer is positioned between the second transparent electrode and the third transparent electrode; the liquid crystal layer is filled between the first transparent electrode and the second transparent electrode; a first data line coupled to the second transparent electrode; and a second data line coupled to the third transparent electrode.
In an embodiment of the invention, the second transparent electrode is divided into a first block and a second block, and the third transparent electrode is located on a first side of the second block and only overlaps with the second block.
In an embodiment of the invention, the liquid crystal molecules on the second side of the second block and the liquid crystal molecules on the second side of the first block have different pretilt angles.
In an embodiment of the invention, the display panel further includes a first polymer layer disposed on the second side of the liquid crystal layer and on the first surface of the first transparent electrode; and the second polymer layer is positioned on the first side of the liquid crystal layer and positioned on the second surface of the second transparent electrode.
In an embodiment of the invention, the display panel further includes a first alignment film disposed on the first surface of the first transparent electrode; and a second alignment film on the second surface of the second transparent electrode.
In an embodiment of the invention, the first transparent electrode is a flat common electrode, and the second transparent electrode is a pixel electrode having a fishbone pattern.
The present invention further provides a display method of a display panel, which is applicable to the display panel, and the method comprises the steps of: inputting a first data signal to the second transparent electrode through the first data line; inputting a second data signal to the third transparent electrode via the second data line; maintaining the state of the input first data signal and the input second data signal, and performing light irradiation treatment on the display panel to polymerize the photo-polymerization molecules in the liquid crystal layer on the first surface of the first transparent electrode and the second surface of the second transparent electrode; and stopping inputting the first data signal and the second data signal when the polymerization of the photo-polymerization molecules is finished.
In an embodiment of the present invention, the light used for the light irradiation treatment is ultraviolet light.
In an embodiment of the invention, when the polymerization of the photo-polymerization molecule is completed, a first polymer layer is formed on the first surface of the first transparent electrode, and a second polymer layer is formed on the second surface of the second transparent electrode.
The benefits of the present invention are illustrated below:
the invention provides a novel display panel and a display method of the display panel, wherein two different electric fields are generated between a pixel electrode and a common electrode, so that polymer layers have different alignment directions in different areas to form different pretilt angles. Therefore, the liquid crystal molecules in the liquid crystal layer can have two different pretilt angles simultaneously due to the action of the polymer layer, so that the color cast generated by the display panel during displaying is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a cross-sectional view of an exemplary display panel.
Fig. 2 is a top view of an exemplary pixel electrode.
FIG. 3 is a cross-sectional view of a display panel according to the present invention.
FIG. 4a is a top view of a second transparent electrode in an embodiment of the invention.
FIG. 4b is a top view of a third transparent electrode in an embodiment of the invention.
FIG. 5 is a flowchart illustrating a method of displaying a display panel according to the present invention.
FIG. 6 is a flowchart illustrating a method of displaying a display panel according to another embodiment of the present invention.
Detailed Description
Specific structural and functional details disclosed herein are merely representative and are provided for purposes of describing example embodiments of the present invention. The present invention may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "straight," "lateral," "up," "down," "left," "right," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or component in question must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "configured," "connected" and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
FIG. 1 is a cross-sectional view of an exemplary display panel showing a pretilt angle generated by applying a voltage to a liquid crystal layer. As shown in fig. 1, the display panel 1 mainly includes a first substrate 10, a liquid crystal layer 12, and a second substrate 14. The first substrate 10 has a flat common electrode 100 on a first surface thereof, and an alignment film 102 on the first surface of the common electrode 100. And a second substrate 14 positioned at a first side of the first substrate 10 and facing the first substrate 10. The second substrate 14 has a plurality of pixel electrodes 140 distributed in an array on a second surface thereof, and an alignment film 142 is disposed on the second surface of the pixel electrodes 140.
The liquid crystal layer 12 is filled between the first substrate 10 and the second substrate 14, i.e. between the common electrode 100 and the pixel electrode 140. The liquid crystal layer 12 includes liquid crystal molecules 120 and photo-polymerizable molecules 122. In the subsequent alignment process, a suitable voltage may be applied to the liquid crystal layer 12, and when the voltage is applied to stabilize the arrangement of the liquid crystal molecules 120, the ultraviolet irradiation or heating is used to polymerize the photo-polymerization molecules 122 in the liquid crystal layer 12, so as to generate a polymer layer, such that the liquid crystal molecules 120 have an initial Pre-tilt Angle (Pre-tilt Angle), thereby achieving the alignment effect.
Fig. 2 is a top view of an exemplary pixel electrode. In order to increase the viewing angle and reduce the color difference, the pixel electrode 20 is fabricated to have a fishbone pattern. The pixel electrode 20 includes a peripheral frame 200, a main trunk (main trunk)201 extending vertically from the center, a main trunk 202 extending horizontally from the center, and four branches 203 forming an angle of ± 45 degrees and ± 135 degrees with the X-axis. The vertical stem 201 and the horizontal stem 202 equally divide the area of a pixel into four regions (domains), each including a flat arrangement of diagonally extending branches 203. The branch portion 203 is generated because a plurality of hollow strip-shaped openings are formed in four regions of the pixel electrode 20, and the extending direction of the strip-shaped openings is within ± 45 degrees and within ± 135 degrees of the X-axis with the difference of the regions. In this way, the entire pixel electrode 20 forms a fishbone pattern structure with mirror symmetry in the frame 200. Since the liquid crystal molecules on the pixel electrode 20 are distributed along the angles of the four branch portions 203, respectively, there is a role of compensating for color shift when viewed in different directions.
FIG. 3 is a cross-sectional view of a display panel according to the present invention. As shown in fig. 3, the main components of the display panel 3 include a first substrate 30, a second substrate 31, a liquid crystal layer 32, a first transparent electrode 300, a second transparent electrode 310, a third transparent electrode 311, and an insulating layer 312.
The first transparent electrode 300 is disposed on the first surface of the first substrate 30. In one embodiment, the first substrate 30 is a glass substrate and is a color filter substrate. In another embodiment, the material of the first transparent electrode 300 is Indium Tin Oxide (ITO), and the first transparent electrode 300 is a common electrode in a flat plate shape.
And a second substrate 31 positioned at a first side of the first substrate 30 to face the first substrate 30. And a second transparent electrode 310 disposed on a second side of the second substrate 31 and facing the first transparent electrode 300 and the first substrate 30. In an embodiment, the second substrate 31 is a glass substrate and is a pixel array substrate. In another embodiment, the material of the second transparent electrode 310 is Indium Tin Oxide (ITO), and the second transparent electrode 310 is a pixel electrode having a fishbone pattern.
A third transparent electrode 311 disposed between the second substrate 31 and the second transparent electrode 310 and facing the second transparent electrode 310, wherein the third transparent electrode 311 overlaps a portion of the second transparent electrode 310. As shown in the figure, the third transparent electrode 311 is formed on the second surface of the second substrate 31 and located on the first side of the second transparent electrode 310, and overlaps with a portion of the second transparent electrode 310, but is not electrically connected to each other. In an embodiment, the size of the third transparent electrode 311 is smaller than the size of the second transparent electrode 310. In another embodiment, the material of the third transparent electrode 311 is Indium Tin Oxide (ITO).
In an embodiment, the second transparent electrode 310 may be divided into a first block 3101 and a second block 3102, and the third transparent electrode 311 is located at a first side of the second block 3102 and only overlaps the second block 3102.
And an insulating layer 312 disposed between the second transparent electrode 310 and the third transparent electrode 311 for isolating the second transparent electrode 310 and the third transparent electrode 311 from each other. That is, the insulating layer 312 is formed on the second surface of the third transparent electrode 311 and completely covers the third transparent electrode 311, and the second transparent electrode 310 is formed on the second surface of the insulating layer 312.
The liquid crystal layer 32 is located between the first substrate 30 and the second substrate 31, and is filled between the first transparent electrode 300 and the second transparent electrode 310. The liquid crystal layer 31 is doped with photopolymerizable molecules 3210 in addition to the liquid crystal molecules 3200. In one embodiment, after the alignment process is completed, the photo-polymerizable molecules 3210 are polymerized on the second side and the first side of the liquid crystal layer 32 to form the first polymer layer 321 and the second polymer layer 322, respectively. As shown in fig. 3, a first polymer layer 321 is disposed on the second side of the liquid crystal layer 32 and on the first surface of the first transparent electrode 300; and a second polymer layer 322 on the first side of the liquid crystal layer 32 and on the second surface of the second transparent electrode 310. In addition, the liquid crystal molecules 3200 are arranged between the first polymer layer 321 and the second polymer layer 322 to form a liquid crystal molecule layer 320.
In one embodiment, the display panel 3 further includes a first alignment film 302 and a second alignment film 313. A first alignment film 302 on the first surface of the first transparent electrode 300. And a second alignment film 313 on a second surface of the second transparent electrode 310.
In another embodiment, the display panel 3 further includes a first data line coupled to the second transparent electrode 310, and a second data line coupled to the third transparent electrode 311. For a detailed description of the first data line and the second data line, please refer to the following description of fig. 4a and fig. 4 b.
Referring to fig. 4a and 4b, fig. 4a is a top view of a second transparent electrode according to the present invention; fig. 4b is a top view of a third transparent electrode of the present invention.
As shown in fig. 4a, the second transparent electrode 310 is a pixel electrode and can be divided into a first block 3101 on a first side and a second block 3102 on a second side. A gate line 40 transversely crosses the second transparent electrode 310 and is located between the first block 3101 and the second block 3102. A thin film transistor 43, coupled to the gate line 40, is located at the center of the second transparent electrode 310 and between the first block 3101 and the second block 3102. The thin film transistor 43 includes a first electrode 431 and a second electrode 432. The second electrode 432 is electrically connected to the second block 3102 of the second transparent electrode 310 through the contact 44. In addition, the second electrode 432 is also electrically connected to the first block 3101 of the second transparent electrode 310 through the contact 45. The first data line 41 extends straight to the left of the second transparent electrode 310 and is connected to the first electrode 431 of the thin film transistor 43. The second data line 42 extends straight to the right of the second transparent electrode 310.
When the gate signal on the gate line 40 turns on the thin film transistor 43, the first data signal of the first data line 41 is transmitted to the contact 44 through the turned-on first and second electrodes 431 and 432, and is transmitted to the second block 3102 of the second transparent electrode 310 through the contact 44. In addition, the first data signal of the first data line 41 is also transmitted to the contact 45 through the conductive first and second electrodes 431 and 432, and transmitted to the first block 3101 of the second transparent electrode 310 through the contact 45.
In one embodiment, the first region 3101 of the second transparent electrode 310 has a fishbone pattern. The first block 3101 includes a peripheral frame 3101a, a central vertically extending main portion 3101b, a central horizontally extending main portion 3101c, and four sets of branch portions 3101d having an included angle of ± 45 degrees, ± 135 degrees with respect to the X-axis. The vertical main portion 3101b and the horizontal main portion 3101c divide the area of one pixel into four regions on average, and each region includes a branch portion 3101d extending obliquely and tiled. The branch portion 3101d is generated because a plurality of hollowed-out elongated openings are formed in four regions of the first block 3101, and the elongated openings extend along the extending direction, and form angles of ± 45 degrees and ± 135 degrees with the X-axis according to the regions. Thus, the entire first block 3101 forms a fishbone pattern structure in which the upper, lower, left, and right sides are mirror images in the frame 3101 a. Since the liquid crystal molecules in the first block 3101 are distributed along the angles of the four branch portions 3101d, respectively, color shift is compensated when viewed in different directions.
In one embodiment, the second region 3102 of the second transparent electrode 310 has a fishbone pattern. The second block 3102 includes a peripheral frame 3102a, a central vertically extending main portion 3102b, a central horizontally extending main portion 3102c, and four sets of branch portions 3102d having an included angle of ± 45 degrees, ± 135 degrees with respect to the X-axis. The vertical main portion 3102b and the horizontal main portion 3102c divide the area of one pixel into four regions on average, and each region includes a branch portion 3102d extending obliquely and tiled. The branch portion 3102d is generated because a plurality of hollow strip-shaped openings are formed in four regions of the second block 3102, and the extending direction of the strip-shaped openings is ± 45 degrees and ± 135 degrees from the X-axis along with the regions. In this way, the entire second block 3102 forms a fishbone pattern structure in which the upper, lower, left, and right sides are mirror images in the frame 3102 a. Since the liquid crystal molecules on the second block 3102 are distributed along the angles of the four branch portions 3102d, respectively, color shift is compensated when viewed in different directions.
As shown in fig. 4b, a third transparent electrode 311 is formed on a second side of the gate line 40. That is, the third transparent electrode 311 overlaps the second region 3102 of the second transparent electrode 310 in FIG. 4 a. A thin film transistor 46 is coupled to the gate line 40. The thin film transistor 46 includes a first electrode 461 and a second electrode 462. The second electrode 462 is electrically connected to the third transparent electrode 311 through the contact 47. The first data line 41 extends straight to the left of the third transparent electrode 311. The second data line 42 extends along the right side of the third transparent electrode 311 and is connected to the first electrode 461 of the thin film transistor 46.
When the gate signal on the gate line 40 turns on the thin film transistor 46, the second data signal of the second data line 42 is transmitted to the contact 47 through the turned-on first and second electrodes 461 and 462, and is transmitted to the third transparent electrode 311 through the contact 47.
FIG. 5 is a flowchart illustrating a method of displaying a display panel according to the present invention. The display method of the display panel can be applied to the display panel 3 shown in fig. 3, 4a and 4 b. The display method of the display panel at least comprises the step of inputting a first data signal to the second transparent electrode 310 through the first data line 41 in step S51. In step S52, a second data signal is input to the third transparent electrode 311 via the second data line 42. Step S53 is performed to maintain the states of the input first data signal and the input second data signal, and perform light irradiation processing on the display panel 3 to polymerize the photopolymerizable molecules 3210 in the liquid crystal layer 32 on the first surface of the first transparent electrode 300 and the second surface of the second transparent electrode 310. In step S54, when the photo-polymerizable molecule 3210 is polymerized, the input of the first data signal and the second data signal is stopped.
In one embodiment, the light used for the light treatment is ultraviolet light. Furthermore, since the photo-polymerization molecules 3210 are polymerized on the first surface of the first transparent electrode 300 and the second surface of the second transparent electrode 310, as shown in fig. 3, a first polymer layer 321 is formed on the first surface of the first transparent electrode 300, and a second polymer layer 322 is formed on the second surface of the second transparent electrode 310.
In addition, since the second transparent electrode 310 and the third transparent electrode 311 are respectively connected to two different data lines, namely the first data line 41 and the second data line 42, when the display method of the display panel is performed, the first data line 41 and the second data line 42 can respectively input the first data signal and the second data signal with the same voltage or different voltages. For the second region 3102 of the second transparent electrode 310, the electric field will be enhanced in the area of the second side of the second region 3102 due to the third transparent electrode 311 on the first side. As for the first block 3101 not overlapped with the third transparent electrode 311, the electric field is not enhanced in the region of the second side thereof. In other words, two different electric fields are formed between the second transparent electrode 310 and the first transparent electrode 300, so that different pretilt angles can be generated in the alignment process. That is, the liquid crystal molecules 3200 positioned on the second side of the second block 3102 and the liquid crystal molecules 3200 positioned on the second side of the first block 3101 have different pretilt angles.
In one embodiment, the third transparent electrode 311 and the second data line 42 are designed to additionally enhance the local electric field during the alignment process, so that the data signal is not transmitted to the second data line 42 after the pre-tilt angle of the liquid crystal molecules is formed. That is, when the display panel 3 is operated, only the first data line 41 inputs the data signal to the second transparent electrode 310, so that only one electric field acts between the second transparent electrode 310 and the first transparent electrode 300.
Fig. 6 is a flowchart of a method for displaying a display panel according to another embodiment of the present invention. The display method of the display panel is applicable to the display panel 3 shown in fig. 3, 4a and 4b, and at least includes the following steps. First, step S61 is performed to provide a display panel 3, where the display panel 3 includes a first substrate 30, a liquid crystal layer 32 and a second substrate 31, the liquid crystal layer 32 is located between the first substrate 30 and the second substrate 31, a first transparent electrode 300 is disposed on a first side of the first substrate 30, a second transparent electrode 310 and a third transparent electrode 311 are disposed on a second side of the second substrate 31, and the third transparent electrode 311 is located on the first side of the second transparent electrode 310 and overlaps with a portion of the second transparent electrode 310. Next, step S62 is performed to continuously input the first data signal to the second transparent electrode 310 through the first data line 41. Then, in step S63, a second data signal is continuously input to the third transparent electrode 311 through the second data line 42. Subsequently, in step S64, the display panel 3 is subjected to light irradiation treatment to polymerize the photopolymerizable molecules 3210 in the liquid crystal layer 32. Finally, step S65 is performed, when the polymerization of the photo-polymerizable molecule 3210 is completed, the input of the first data signal and the second data signal is stopped.
In one embodiment, the region where the second transparent electrode 310 overlaps the third transparent electrode 311 has a stronger electric field than the region where the second transparent electrode 310 does not overlap the third transparent electrode 311. Since the second side of the second transparent electrode 310 generates two electric fields with different intensities, the liquid crystal molecules 3200 have two different pretilt angles after the alignment process.
The benefits of the present invention are illustrated below:
the invention provides a novel display panel and a display method of the display panel, wherein two different electric fields are generated between a pixel electrode and a common electrode, so that polymer layers have different alignment directions in different areas to form different pretilt angles. Therefore, the liquid crystal molecules in the liquid crystal layer can have two different pretilt angles simultaneously due to the action of the polymer layer, so that the color cast generated by the display panel during displaying is improved.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A display method of a display panel, comprising the steps of:
providing a display panel, wherein the display panel comprises a first substrate, a liquid crystal layer and a second substrate, and the liquid crystal layer is positioned between the first substrate and the second substrate;
the first side of the first substrate is provided with a first transparent electrode, and the second side of the second substrate is provided with a second transparent electrode and a third transparent electrode;
the second transparent electrode is divided into a first block and a second block, the first block and/or the second block are provided with a fishbone pattern, and the fishbone pattern comprises a frame surrounding the periphery, a main trunk extending vertically from the center, a main trunk extending horizontally from the center, and four groups of branch parts forming an included angle of +/-45 degrees and +/-135 degrees with an X axis; wherein the liquid crystal molecules on the second transparent electrode are respectively distributed along the four groups of branch parts;
the third transparent electrode is positioned on the first side of the second transparent electrode and is overlapped with part of the second transparent electrode;
continuously inputting a first data signal to the second transparent electrode through a first data line;
continuously inputting a second data signal to the third transparent electrode through a second data line;
performing light treatment on the display panel to polymerize the photo-polymerization molecules in the liquid crystal layer;
and stopping inputting the first data signal and the second data signal when the polymerization of the photo-polymerization molecules is finished.
2. The method as claimed in claim 1, wherein the region where the second transparent electrode overlaps the third transparent electrode has a stronger electric field than the region where the second transparent electrode does not overlap the third transparent electrode.
3. A display panel, comprising:
a first substrate;
the first transparent electrode is positioned on the first surface of the first substrate;
a second substrate positioned at a first side of the first substrate to face the first substrate;
a second transparent electrode on the second substrate, facing the first transparent electrode;
a third transparent electrode between the second substrate and the second transparent electrode, facing the second transparent electrode, the third transparent electrode overlapping with a portion of the second transparent electrode;
the insulating layer is positioned between the second transparent electrode and the third transparent electrode;
the liquid crystal layer is filled between the first transparent electrode and the second transparent electrode;
a first data line coupled to the second transparent electrode; and
a second data line coupled to the third transparent electrode
The second transparent electrode is divided into a first block and a second block, the first block and/or the second block are provided with a fishbone pattern, and the fishbone pattern comprises a frame surrounding the periphery, a main trunk extending vertically from the center, a main trunk extending horizontally from the center, and four groups of branch parts forming an included angle of +/-45 degrees and +/-135 degrees with an X axis; wherein the liquid crystal molecules on the second transparent electrode are respectively distributed along the angles of the four groups of branch parts.
4. The display panel according to claim 3, wherein the second transparent electrode is divided into a first block and a second block, and the third transparent electrode is located at a first side of the second block and only overlaps the second block.
5. The display panel of claim 3, wherein the liquid crystal molecules on the second side of the second block have different pretilt angles from the liquid crystal molecules on the second side of the first block.
6. The display panel of claim 3, further comprising:
the first polymer layer is positioned on the second side of the liquid crystal layer and positioned on the first surface of the first transparent electrode; and
and the second polymer layer is positioned on the first side of the liquid crystal layer and positioned on the second surface of the second transparent electrode.
7. The display panel of claim 3, further comprising:
the first alignment film is positioned on the first surface of the first transparent electrode; and
and the second alignment film is positioned on the second surface of the second transparent electrode.
8. A display method of a display panel, to which the display panel according to claim 3 is applied, comprising the steps of:
inputting a first data signal to the second transparent electrode through the first data line;
inputting a second data signal to the third transparent electrode via the second data line;
maintaining the state of the input first data signal and the input second data signal, and performing light irradiation treatment on the display panel to polymerize the photo-polymerization molecules in the liquid crystal layer on the first surface of the first transparent electrode and the second surface of the second transparent electrode;
and stopping inputting the first data signal and the second data signal when the polymerization of the photo-polymerization molecules is finished.
9. The method as claimed in claim 8, wherein after the polymerization of the photo-polymerization molecules is completed, a first polymer layer is formed on the first surface of the first transparent electrode, and a second polymer layer is formed on the second surface of the second transparent electrode.
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| CN201810785662.2A CN108845463B (en) | 2018-07-17 | 2018-07-17 | Display panel and display method thereof |
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| US12025888B2 (en) | 2021-08-19 | 2024-07-02 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Liquid crystal display panel, liquid crystal alignment method, and mobile terminal |
| CN113655664B (en) * | 2021-08-19 | 2022-09-27 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display panel, liquid crystal alignment method and mobile terminal |
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| CN1460199A (en) * | 2001-03-30 | 2003-12-03 | 美能达株式会社 | Liquid crystal display apparatus |
| CN101349841A (en) * | 2008-09-05 | 2009-01-21 | 友达光电股份有限公司 | Polymer steady direction liquid crystal panel and opposite electrode array substrate and its manufacturing method |
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| KR101003623B1 (en) * | 2004-12-31 | 2010-12-23 | 엘지디스플레이 주식회사 | Liquid crystal display device using in plane switching mode |
| TW200813535A (en) * | 2006-09-12 | 2008-03-16 | Wintek Corp | Liquid crystal panel and liquid crystal display |
| JP5578132B2 (en) * | 2011-04-12 | 2014-08-27 | 凸版印刷株式会社 | Liquid crystal display |
| CN108845463B (en) * | 2018-07-17 | 2021-01-08 | 惠科股份有限公司 | Display panel and display method thereof |
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| CN1460199A (en) * | 2001-03-30 | 2003-12-03 | 美能达株式会社 | Liquid crystal display apparatus |
| CN101349841A (en) * | 2008-09-05 | 2009-01-21 | 友达光电股份有限公司 | Polymer steady direction liquid crystal panel and opposite electrode array substrate and its manufacturing method |
| CN101387781A (en) * | 2008-10-22 | 2009-03-18 | 友达光电股份有限公司 | Liquid crystal display panel and manufacturing method thereof |
| CN102692769A (en) * | 2012-04-06 | 2012-09-26 | 友达光电股份有限公司 | Liquid crystal display panel |
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