CN113707825A - Display panel and mobile terminal - Google Patents
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- CN113707825A CN113707825A CN202110887077.5A CN202110887077A CN113707825A CN 113707825 A CN113707825 A CN 113707825A CN 202110887077 A CN202110887077 A CN 202110887077A CN 113707825 A CN113707825 A CN 113707825A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/858—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
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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
- G02F1/133305—Flexible substrates, e.g. plastics, organic film
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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
- G02F1/13338—Input devices, e.g. touch panels
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
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- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
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Abstract
The embodiment of the invention discloses a display panel and a mobile terminal; the display panel comprises a display main body, a first light-gathering layer positioned on the display main body and a first optical film layer positioned on the first light-gathering layer, wherein the refractive index of the first light-gathering layer is smaller than that of the first optical film layer; the first light-gathering layer comprises a plurality of first convex surfaces, and the protruding direction of the first convex surfaces is the same as the light-emitting direction of the display panel; according to the embodiment of the invention, the first convex surface and the first optical film layer are arranged, and the light emitted by the display main body is converged by utilizing the first convex surface light condensation principle and the light condensation principle of matching the film layers with different refractive indexes, so that the light emitting efficiency of the display panel is increased, and the display brightness of the display panel is improved.
Description
Technical Field
The invention relates to the field of display, in particular to a display panel and a mobile terminal.
Background
With the development of display technology, the color requirement is higher and higher, the display brightness is the basis of color, and is limited by the luminescent material or the backlight unit of the display panel, when the same luminescent material or the backlight unit works, light with certain brightness is generated, and in the process that the light finally enters human eyes through each film layer of the display panel, the light emitting efficiency of the display panel is seriously reduced due to the excessively thick display panel or the poorly designed film layer structure of the display panel.
Therefore, a display panel and a mobile terminal are needed to solve the above technical problems.
Disclosure of Invention
The embodiment of the invention provides a display panel and a mobile terminal, which can solve the technical problem that the light emitting efficiency is seriously reduced in the process that the light of the display panel finally enters human eyes through a film layer at present.
The embodiment of the invention provides a display panel, which comprises a display main body, a first light-gathering layer and a first optical film layer, wherein the first light-gathering layer is positioned on the display main body, the first optical film layer is positioned on the first light-gathering layer, and the refractive index of the first light-gathering layer is smaller than that of the first optical film layer;
the first light-gathering layer comprises a plurality of first convex surfaces, and the protruding direction of the first convex surfaces is the same as the light-emitting direction of the display panel.
In one embodiment, the display body includes a plurality of sub-pixels, and one of the sub-pixels corresponds to one of the first convex surfaces of the first light-gathering layer.
In an embodiment, the display panel further includes a touch layer located between the first light-gathering layer and the display main body, the touch layer includes a plurality of horizontally and vertically staggered touch traces, and an orthogonal projection of the first convex surface on the touch layer is located outside the touch traces.
In an embodiment, the display panel further includes a color film layer on the display main body and a second light-condensing layer on the color film layer, the color film layer includes a plurality of color resists, the second light-condensing layer includes a plurality of second convex surfaces, and one of the color resists corresponds to one of the second convex surfaces of the second light-condensing layer.
In an embodiment, the display panel further includes a second optical film layer on the second light-condensing layer, the second optical film layer having a refractive index greater than a refractive index of the first optical film layer.
In an embodiment, an image-side focal length of the first convex surface decreases in a direction from a center of the display panel to an edge of the display panel.
In one embodiment, the thicknesses of any two first convex surfaces are the same, and the refractive index of the first convex surfaces increases in the direction from the center of the display panel to the edge of the display panel.
In an embodiment, the display panel includes a folding area and planar areas located at two sides of the folding area, the display main body and the first light-gathering layer are located in the folding area and the planar areas, and an image focal length of the first convex surface in the folding area is smaller than an image focal length of the first convex surface in the planar areas.
In one embodiment, the thickness of the first convex surface decreases and the refractive index of the first convex surface increases in a direction from the edge of the folding region to the center of the folding region; alternatively, in a direction from an edge of the folding region to a center of the folding region, the thickness of the first convex surface increases, and the refractive index of the first convex surface decreases.
The embodiment of the invention also provides a mobile terminal, which comprises any one of the display panel and the terminal main body, wherein the terminal main body and the display panel are combined into a whole.
According to the embodiment of the invention, the first convex surface and the first optical film layer are arranged, and the light emitted by the display main body is converged by utilizing the first convex surface light condensation principle and the light condensation principle of matching the film layers with different refractive indexes, so that the light emitting efficiency of the display panel is increased, and the display brightness of the display panel is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first structure of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic top view illustrating a second structure of a display panel according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third structure of a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic top view illustrating a fourth structure of a display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a fifth structure of a display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a sixth structure of a display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a seventh structure of a display panel according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an eighth structure of a display panel according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Furthermore, it should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, and are not intended to limit the present invention. In the present invention, unless otherwise specified, the use of directional terms such as "upper" and "lower" generally means upper and lower in the actual use or operation of the device, particularly in the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
With the development of display technology, the color requirement is higher and higher, the display brightness is the basis of color, and is limited by the luminescent material or the backlight unit of the display panel, when the same luminescent material or the backlight unit works, light with certain brightness is generated, and in the process that the light finally enters human eyes through each film layer of the display panel, the light emitting efficiency of the display panel is seriously reduced due to the excessively thick display panel or the poorly designed film layer structure of the display panel.
Referring to fig. 1, an embodiment of the invention provides a display panel 100, including a display main body 200, a first light-gathering layer 300 located on the display main body 200, and a first optical film 400 located on the first light-gathering layer 300, wherein a refractive index of the first light-gathering layer 300 is smaller than a refractive index of the first optical film 400;
the first light-gathering layer 300 includes a plurality of first convex surfaces 310, and a protruding direction of the first convex surfaces 310 is the same as a light-emitting direction of the display panel 100.
According to the embodiment of the invention, the first convex surface and the first optical film layer are arranged, and the light emitted by the display main body is converged by utilizing the first convex surface light condensation principle and the light condensation principle of matching the film layers with different refractive indexes, so that the light emitting efficiency of the display panel is increased, and the display brightness of the display panel is improved.
The technical solution of the present invention will now be described with reference to specific embodiments.
The display panel 100 includes a plurality of film layers, light emitted by the display panel 100 may be scattered after passing through the plurality of film layers, when the light exits the display panel 100, brightness of the light is reduced, which causes reduction of display loudness, thereby affecting display color saturation, and the like, and the display panel 100 includes a display main body 200, a first light-condensing layer 300 located on the display main body 200, and a first optical film layer 400 located on the first light-condensing layer 300; the first light-gathering layer 300 includes a plurality of first convex surfaces 310, a protruding direction of the first convex surfaces 310 is the same as a light-emitting direction of the display panel 100, and a refractive index of the first light-gathering layer 300 is smaller than a refractive index of the first optical film 400, as shown in fig. 1. The first convex surface 310 may be regarded as a convex lens, and the light-gathering principle is the same as that of a convex lens, that is, the first convex surface 310 may be a first convex lens, the second convex surface 710 may be a second convex lens, and light emitted by the display panel 100 passes through the first convex surface 310 to generate a gathering effect, and the light from the first convex surface 310 to the first optical film layer 400 from the optical comb to the optical density also generates the gathering effect, and through the matching between the first convex surface 310 and the first optical film layer 400, the light-gathering effect can be better, and light emitted by the display main body 200 is gathered, so that the light-emitting efficiency of the display panel 100 is increased, and the display brightness of the display panel 100 is improved.
In this embodiment, if the display panel 100 adopts a whole-surface light-gathering arrangement of the whole continuous layer of the first convex surface 310, the cost is increased, and some flexible display panels 100 are not beneficial to bending, so the display main body 200 includes a plurality of sub-pixels 210, and one sub-pixel 210 corresponds to one first convex surface 310 of the first light-gathering layer 300, please refer to fig. 2 specifically. Wherein, R represents a red pixel, G represents a green pixel, and B represents a blue pixel, the sub-pixels 210 correspond to the first convex surfaces 310 one by one, the first convex surfaces 310 can be arranged at intervals, so as to achieve a light-gathering effect and reduce the difficulty of the manufacturing process, and the gap between the first convex surfaces 310 is beneficial to bending the display panel 100, thereby improving the flexibility of the display panel 100.
In this embodiment, the sub-pixel 210 includes a light emitting unit, and an orthogonal projection of the light emitting unit on the corresponding first convex surface 310 is located in the corresponding first convex surface 310. The light emitted by the display main body 200 can be converged by the first convex surface 310, so that the light emitting efficiency of the display panel 100 is increased, and the display brightness of the display panel 100 is improved.
In this embodiment, if the sub-pixel 210 is any one of a red pixel, a green pixel, or a blue pixel, the light emitting unit includes any one of a corresponding red light emitting unit, a corresponding green light emitting unit, or a corresponding blue light emitting unit, an area of any one of the blue light emitting units is larger than an area of any one of the red light emitting units, an area of any one of the red light emitting units is larger than an area of any one of the green light emitting units, an area of all the blue light emitting units is equal to an area of all the red light emitting units, an area of all the blue light emitting units is equal to an area of all the green light emitting units, the first light collecting layer 300 includes a blue convex surface corresponding to the blue light emitting unit, a red convex surface corresponding to the red light emitting unit, and a green convex surface corresponding to the green light emitting unit, an area of any one of the blue convex surfaces is larger than an area of any one of the red convex surfaces, the area of any one red convex surface is larger than that of any one green convex surface, so that the integration level of a single pixel can be improved while the light condensation effect is ensured, and each pixel has independent light condensation degree.
In this embodiment, the image space focal length of any green convex surface is less than the image space focal length of any red convex surface, and any image space focal length of red convex surface is less than any image space focal length of blue convex surface, the area of green light-emitting unit is little, needs to strengthen the luminance of green pixel, and the convex surface light gathering ability that the image space focal length is littleer is stronger, and the effect of converging of light is better, and the light luminance that jets out is higher, and the display effect is better, improves the luminance homogeneity of three kinds of colours red, green and blue, can improve the color standard of whole display panel 100, reinforcing display effect.
In this embodiment, the thickness of any one of the green convex surfaces is greater than that of any one of the red convex surfaces, the thickness of any one of the red convex surfaces is less than that of any one of the blue convex surfaces, the area of the green light-emitting unit is slightly smaller, the light-emitting brightness of the green pixel needs to be enhanced, the larger the thickness is, the smaller the image space focal length of the convex surfaces is, the stronger the light-condensing capacity of the convex surfaces is, the better the light-condensing effect is, the higher the brightness of the emitted light is, the better the display effect is, the higher the brightness uniformity of the three colors of red, green and blue is, the accuracy of the color of the whole display panel 100 can be improved, and the display effect is enhanced.
In this embodiment, the thickness of any one of the green convex surfaces is equal to the thickness of any one of the red convex surfaces, the thickness of any one of the red convex surfaces is equal to the thickness of any one of the blue convex surfaces, the refractive index of any one of the green convex surfaces is greater than the refractive index of any one of the red convex surfaces, the refractive index of any one of the red convex surfaces is less than the refractive index of any one of the blue convex surfaces, through the setting to different refractive index materials (can utilize modes such as inkjet printing, roll printing), green luminescent unit's area is little, needs to strengthen green pixel's luminance, the refractive index is big more, and the image space focus of convex surface is little less, and convex surface light gathering ability is stronger more, and the convergence effect of light is better, and the light luminance of shooing is high more, and display effect is better, improves the luminance homogeneity of three kinds of colours red, green and blue, can improve whole display panel 100's accuracy of colour, reinforcing display effect.
In this embodiment, the display panel 100 further includes a touch layer 500 located between the first light-gathering layer 300 and the display main body 200, the touch layer 500 includes a plurality of touch traces 510 staggered in the horizontal and vertical directions, and an orthogonal projection of the first convex surface 310 on the touch layer 500 is located outside the touch traces 510, with reference to fig. 3 and 4. The center of the crossed touch traces 510 is a rectangular pattern, at the overlooking view angle of the display panel 100, the first convex surface 310 is located in the rectangular pattern, the touch traces 510 can be conveniently located by using the first convex surface 310 for location, touch and display functions are not interfered with each other, light rays are not influenced with each other, and the working performance of the display panel 100 is improved.
In this embodiment, the touch layer 500 may be formed by physical deposition or chemical deposition.
In this embodiment, the display panel 100 further includes a color film layer 600 located on the display main body 200 and a second light-condensing layer 700 located on the color film layer 600, the color film layer 600 includes a plurality of color resistors 610, the second light-condensing layer 700 includes a plurality of second convex surfaces 710, one color resistor 610 corresponds to one second convex surface 710 of the second light-condensing layer 700, and a protruding direction of the second convex surface 710 is the same as a light-emitting direction of the display panel 100, which refers to fig. 5 specifically. When the display panel 100 is an OLED (Organic Light-Emitting Diode) display panel 100, the color film 600 may replace a polarizing layer and a cover plate layer (ultra-thin glass or thermoplastic polyester) in the prior art, so as to reduce the thickness of the display panel 100, and facilitate development of smaller radius bending, stretching, and curling states, the color film 600 further includes a Light shielding layer 620 located between two adjacent color resistors 610, the color film 600 may improve the contrast and display saturation of the display panel 100, the second Light-condensing layer 700 is on the color film 600, on one hand, the Light-condensing degree of the display panel 100 may be further improved, and the display quality of the display panel 100 may be improved, on the other hand, the color resistors 610 may be used for positioning, so as to facilitate positioning and setting of the second convex surface 710 in the second Light-condensing layer 700, simplify the manufacturing process and reduce the manufacturing difficulty.
In this embodiment, a plurality of the second convex surfaces 710 may correspond to one of the color resistors 610, so as to achieve a good light-equalizing effect.
In this embodiment, the light shielding layer 620 is located above the plurality of color resistors 610, the orthographic projection of the color resistors 610 on the light shielding layer 620 is located outside the light shielding layer 620, one side of the color resistors 610 close to the light shielding layer 620 is a convex surface, and the color resistors 610 can also converge light by using the light condensation principle of the convex lens, so that the overall brightness of the display panel 100 is improved, and the display effect is enhanced.
In this embodiment, the convex surfaces of the first light-gathering layer 300 and the second light-gathering layer 700 can gather light to a greater extent, and for edge stray light, the light-gathering effect of the convex surfaces is weaker, the display panel 100 further includes a second optical film 800 located on the second light-gathering layer 700, the refractive index of the second optical film 800 is greater than the refractive index of the first optical film 400, and by using the fact that the refractive index of the second optical film 800 is greater than the refractive index of the first optical film 400, referring to fig. 5 in particular, the refractive index of the first optical film 400 is greater than the refractive index of the first convex surface 310, so as to form a refractive index gradient, when light passes through the first convex surface 310, the first optical film 400, and the second optical film 800, the light has a better gathering effect, when light passes through only the first optical film 400 and the second optical film 800, the light rays also have a better convergence effect, and the light convergence effect of the whole display panel 100 is further improved by utilizing the refractive index gradient, so that the whole brightness of the display panel 100 is improved, and the display effect is enhanced.
In this embodiment, when display panel 100 is OLED display panel 100, display panel 100 includes a plurality of luminescence units, luminescence unit with the distance of the two sides that first convex surface 310 is close to mutually equals the image space focus of first convex surface 310, promptly the light that the center of luminescence unit sent is in the process behind the first arch to parallel light jets out, has improved the convergence ability of light, has strengthened light homogeneity.
In this embodiment, as the size of the display panel 100 increases, a large viewing angle brightness may decrease at the edge of the display panel 100, and the image focal length of the first convex surface 310 decreases from the center of the display panel 100 to the edge of the display panel 100, as shown in fig. 6. The dotted arrows in the drawings indicate the paths of the light rays emitted by the display panel 100, and thus it is illustrated that the light condensing capability of the first convex surface 310 near the edge of the display panel 100 is enhanced, the light condensing effect of the edge of the display panel 100 is further enhanced, the brightness of the edge of the display panel 100 is further enhanced, the color filter effect of the edge with a large viewing angle is weakened, and the display effect is enhanced.
In this embodiment, in a direction from the center of the display panel 100 to the edge of the display panel 100, the thickness of the first convex surface 310 is gradually increased, the larger the thickness is, the smaller the image focal length of the first convex surface 310 is, the stronger the light gathering capability of the first convex surface 310 is, the better the light gathering effect of the light is, the higher the brightness of the emitted light is, the higher the light gathering capability of the first convex surface 310 near the edge of the display panel 100 is, the light gathering effect of the edge of the display panel 100 is further enhanced, the brightness of the edge of the display panel 100 is further enhanced, the color filter effect of the edge with a large viewing angle is weakened, and the display effect is enhanced.
In this embodiment, in a direction from the center of the display panel 100 to the edge of the display panel 100, any two of the first convex surfaces 310 have the same thickness, the refractive index of the first convex surface 310 is gradually increased, the larger the refractive index is, the smaller the image space focal length of the first convex surface 310 is, the stronger the light gathering capability of the first convex surface 310 is, the better the light gathering effect is, the higher the brightness of the emitted light is, the light gathering capability of the first convex surface 310 near the edge of the display panel 100 is enhanced, the light gathering effect of the edge of the display panel 100 is further enhanced, the brightness of the edge of the display panel 100 is further enhanced, the color patch influence of the edge with a large viewing angle is weakened, and the display effect is enhanced.
In this embodiment, with the improvement of the display technology, the display panel 100 is bendable, in the folded area, a crease is generated, and the crease affects the display brightness of the area, affects the viewing experience of the user, the display panel 100 includes a folding area B and planar areas a at both sides of the folding area B, the display body 200 and the first light-condensing layer 300 are located within the folding area B and the planar area a, specifically, referring to fig. 7, the image focal length of the first convex surface 310 in the folding region B is smaller than the image focal length of the first convex surface 310 in the planar region a, so that the refractive light-gathering capability of the first convex surface 310 in the folding region B is enhanced, the display brightness of the folding region B is improved, the adverse display effect of the fold on the folding region B is reduced, the color accuracy of the entire display panel 100 can be improved, and the display effect is enhanced.
In this embodiment, the first convex surface 310 in the folding region B and the first convex surface 310 in the planar region a may be different in thickness, that is, the thickness of the first convex surface 310 in the folding region B is greater than the thickness of the first convex surface 310 in the planar region a, or the first convex surface 310 in the folding region B and the first convex surface 310 in the planar region a may be different in refractive index, that is, the thickness of the first convex surface 310 in the folding region B is equal to the thickness of the first convex surface 310 in the planar region a, the refractive index of the first convex surface 310 in the folding region B is greater than the refractive index of the first convex surface 310 in the planar region a, and the image-wise focal length of the first convex surface 310 in the folding region B is reduced by the change of the thickness or the refractive index, and the light gathering capability of the first convex surface 310 in the folding region B is increased, the bad display influence of the folding lines on the folding area B is reduced, the color accuracy of the whole display panel 100 can be improved, and the display effect is enhanced.
In this embodiment, the foldable display panel 100 may be folded inward or folded outward, and in a direction from an edge of the folding region B to a center of the folding region B, a thickness of the first convex surface 310 decreases, and a refractive index of the first convex surface 310 increases, specifically referring to fig. 8; alternatively, the thickness of the first convex surface 310 increases in a direction from the edge of the folding region B to the center of the folding region B, and the refractive index of the first convex surface 310 decreases, which is easy to understand and can be referred to fig. 8 without repeating the drawing. The first convex surfaces 310 with different thicknesses are arranged to facilitate inner folding or outer folding, different refractive indexes are arranged at the same time, the optimal arrangement is that the image space focal lengths of any two first convex surfaces 310 in the folding area B are the same, when the display panel 100 is unfolded, the light gathering capacity of the first convex surfaces 310 in the folding area B is the same, the brightness of the folding area B tends to be consistent, and the display chromatic aberration of the folding area B is reduced.
In this embodiment, the material of the first convex surface 310 in the first light-gathering layer 300 or/and the second light-gathering layer 700 may be any one or more transparent materials such as transparent polyimide, transparent silicone, and transparent resin, and the material of the first optical film layer 400 or/and the second optical film layer 800 may be any one or more transparent materials such as transparent polyimide, transparent silicone, and transparent resin.
In this embodiment, the refractive index ranges of the first light-gathering layer 300, the second light-gathering layer 700, the first optical film 400, and the second optical film 800 may be 1.2 to 2.0, which can improve the light-gathering effect and prevent the light from being too concentrated, thereby avoiding color cast in a large viewing angle.
In this embodiment, the display main body 200 includes a substrate, a buffer layer located on the substrate, an active layer located on the buffer layer, a first insulating layer located on the active layer, a gate layer located on the first insulating layer, a second insulating layer located on the gate layer, a source drain layer located on the second insulating layer, and a third insulating layer located on the source drain layer.
In this embodiment, the display panel 100 may be a liquid crystal display panel 100, and the display main body 200 further includes a backlight unit located on one side of the substrate, a liquid crystal layer located on one side of the third insulating layer, upper and lower polarizing plates located on two sides of the liquid crystal layer, and a color film substrate located on the liquid crystal layer.
In this embodiment, the display panel 100 may be an OLED display panel 100, and the display main body 200 further includes a light emitting device layer located on one side of the third insulating layer, where the light emitting device layer includes an anode layer located on the third insulating layer, a light emitting material layer located on the anode layer, and a cathode layer located on the light emitting material layer.
In this embodiment, the display panel 100 further includes an encapsulation layer located between the display main body 200 and the first light-gathering layer 300, where the encapsulation layer may be an inorganic/organic/inorganic three-layer structure or other multi-layer structure, and may be formed by chemical deposition, sputtering, atomic layer deposition, vacuum evaporation, inkjet printing, or the like.
According to the embodiment of the invention, the first convex surface and the first optical film layer are arranged, and the light emitted by the display main body is converged by utilizing the first convex surface light condensation principle and the light condensation principle of matching the film layers with different refractive indexes, so that the light emitting efficiency of the display panel is increased, and the display brightness of the display panel is improved.
Referring to fig. 9, an embodiment of the present invention further provides a mobile terminal 10, including any one of the display panels 100 and the terminal body 20, where the terminal body 20 and the display panel 100 are combined into a whole.
Please refer to any one of the embodiments of the display panel 100 and fig. 1 to 8, which will not be described herein.
In this embodiment, the terminal main body 20 may include a middle frame, a frame adhesive, and the like, and the mobile terminal 10 may be a mobile display terminal such as a mobile phone and a tablet, which is not limited herein.
The embodiment of the invention discloses a display panel and a mobile terminal; the display panel comprises a display main body, a first light-gathering layer positioned on the display main body and a first optical film layer positioned on the first light-gathering layer, wherein the refractive index of the first light-gathering layer is smaller than that of the first optical film layer; the first light-gathering layer comprises a plurality of first convex surfaces, and the protruding direction of the first convex surfaces is the same as the light-emitting direction of the display panel; according to the embodiment of the invention, the first convex surface and the first optical film layer are arranged, and the light emitted by the display main body is converged by utilizing the first convex surface light condensation principle and the light condensation principle of matching the film layers with different refractive indexes, so that the light emitting efficiency of the display panel is increased, and the display brightness of the display panel is improved.
The display panel and the mobile terminal provided by the embodiment of the present invention are described in detail above, and the principle and the embodiment of the present invention are explained in the present document by applying a specific example, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A display panel is characterized by comprising a display main body, a first light-gathering layer positioned on the display main body and a first optical film layer positioned on the first light-gathering layer, wherein the refractive index of the first light-gathering layer is smaller than that of the first optical film layer;
the first light-gathering layer comprises a plurality of first convex surfaces, and the protruding direction of the first convex surfaces is the same as the light-emitting direction of the display panel.
2. The display panel of claim 1, wherein the display main body comprises a plurality of sub-pixels, and one of the sub-pixels corresponds to one of the first convex surfaces of the first light-gathering layer.
3. The display panel of claim 1, wherein the display panel further comprises a touch layer located between the first light-gathering layer and the display main body, the touch layer comprises a plurality of touch traces staggered in a horizontal direction and a vertical direction, and an orthographic projection of the first convex surface on the touch layer is located outside the touch traces.
4. The display panel according to claim 3, wherein the display panel further comprises a color film layer on the display main body and a second light-condensing layer on the color film layer, the color film layer comprises a plurality of color resists, the second light-condensing layer comprises a plurality of second convex surfaces, and one color resist corresponds to one second convex surface of the second light-condensing layer.
5. The display panel of claim 4, further comprising a second optical film layer on the second light-condensing layer, the second optical film layer having a refractive index greater than the refractive index of the first optical film layer.
6. The display panel of claim 1, wherein the image focal length of the first convex surface decreases in a direction from the center of the display panel to the edge of the display panel.
7. The display panel according to claim 6, wherein the thickness of any two of the first convex surfaces is the same, and the refractive index of the first convex surfaces increases in a direction from the center of the display panel to the edge of the display panel.
8. The display panel of claim 1, wherein the display panel comprises a folding area and planar areas disposed on two sides of the folding area, the display main body and the first light-gathering layer are disposed in the folding area and the planar areas, and an image-space focal length of the first convex surface in the folding area is smaller than an image-space focal length of the first convex surface in the planar areas.
9. The display panel according to claim 8, wherein a thickness of the first convex surface decreases and a refractive index of the first convex surface increases in a direction from an edge of the folding region to a center of the folding region; alternatively, in a direction from an edge of the folding region to a center of the folding region, the thickness of the first convex surface increases, and the refractive index of the first convex surface decreases.
10. A mobile terminal comprising the display panel according to any one of claims 1 to 9 and a terminal body, the terminal body being integrated with the display panel.
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