CN109164648B - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN109164648B
CN109164648B CN201811161119.1A CN201811161119A CN109164648B CN 109164648 B CN109164648 B CN 109164648B CN 201811161119 A CN201811161119 A CN 201811161119A CN 109164648 B CN109164648 B CN 109164648B
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Prior art keywords
substrate
light
display
close
display panel
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CN201811161119.1A
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CN109164648A (en
Inventor
郑斌义
杨雁
吴玲
沈柏平
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Xiamen Tianma Microelectronics Co Ltd
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Xiamen Tianma Microelectronics Co Ltd
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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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • 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
    • G02F1/133502—Antiglare, refractive index matching layers
    • 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
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • 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
    • G02F1/133528—Polarisers

Abstract

The invention discloses a display panel and a display device, which are used for solving the technical problem that the visual angle range of a camera is narrow due to the fact that holes are not dug in the display panel in the prior art. Wherein the display panel has a light-transmitting area and a display area surrounding the light-transmitting area, the display panel includes: a display substrate; a function board disposed opposite to the display substrate; in the light-transmitting area, a concave groove is formed in one side, close to the display substrate, of the functional plate, and a transparent medium is filled in one side, close to the display substrate, of the concave groove to form an optical deflection structure, wherein the refractive index of the transparent medium is larger than that of the functional plate.

Description

Display panel and display device
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
At present, a display panel with a full-screen design is more and more popular with consumers because of higher screen occupation ratio, the full-screen generally adopts a peripheral ultra-narrow frame design, and a light-transmitting Area is arranged in a display Area (AA), and the light-transmitting Area is used for placing components such as a camera, an earphone and the like.
In the light transmission area, some film layers of the display panel may or may not need to be drilled with holes, and components such as a camera, a receiver and the like are placed at the corresponding positions of the light transmission area. If the hole is not dug, the distance between the camera and the upper surface of the display panel is long, so that the visual angle range of the camera is narrow.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which are used for solving the technical problem that the visual angle range of a camera is narrow due to the fact that holes are not dug in the display panel in the prior art.
In a first aspect, an embodiment of the present invention provides a display panel, where the display panel has a light-transmissive region and a display region surrounding the light-transmissive region, and the display panel includes:
a display substrate;
a function board disposed opposite to the display substrate;
in the light-transmitting area, a concave groove is formed in one side, close to the display substrate, of the functional plate, and a transparent medium is filled in one side, close to the display substrate, of the concave groove to form an optical deflection structure, wherein the refractive index of the transparent medium is larger than that of the functional plate.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the transparent medium is a liquid transparent adhesive.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the display substrate includes a first substrate and a second substrate that are oppositely disposed, where:
in the display area, a supporting part and a liquid crystal layer are arranged between the first substrate and the second substrate, one side of the second substrate, which is close to the first substrate, is provided with a plurality of color filter film blocks, and a black matrix is arranged between the color filter film blocks; an upper polarizer is arranged on one side, far away from the first substrate, of the second substrate, a lower polarizer is arranged on one side, far away from the second substrate, of the first substrate, and openings are formed in the upper polarizer and the lower polarizer corresponding to the light transmitting areas.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, a light-transmitting structure is disposed between the first substrate and the second substrate in the light-transmitting region.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, in the light-transmitting region, a side of the first substrate close to the second substrate is a first concave surface, a side of the second substrate close to the first substrate is a second concave surface, and a liquid crystal material is filled between the first concave surface and the second concave surface to form the light-transmitting structure.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, in the display area, a sealant is disposed on a side of the liquid crystal layer close to the light-transmitting area;
in the light-transmitting area, one side of the first substrate, which is close to the second substrate, is a first concave surface, one side of the second substrate, which is close to the first substrate, is a second concave surface, and the first concave surface and the second concave surface are filled with refraction materials or air to form the light-transmitting structure, wherein the refraction index of the refraction materials is greater than that of the materials corresponding to the first concave surface and the second concave surface.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the first concave surface and the second concave surface are both arc surfaces.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, in the light-transmitting region, a side of the first substrate close to the second substrate is a first convex surface, a side of the second substrate close to the first substrate is a second convex surface, and a liquid crystal material is filled between the first convex surface and the second convex surface to form the light-transmitting structure.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, in the display area, a sealant is disposed on a side of the liquid crystal layer close to the light-transmitting area;
in the printing opacity district, first base plate is close to one side of second base plate is first convex surface, the second base plate is close to one side of first base plate is the second convex surface, first convex surface with it has refractive material or air to fill between the second convex surface, forms the printing opacity structure, wherein, refractive material's refractive index is less than first convex surface with the refractive index of the material that the second convex surface corresponds.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the first convex surface and the second convex surface are both arc surfaces.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, in the display area, the first substrate includes a first substrate and a first combined film layer located on a side of the first substrate close to the second substrate, and the first combined film layer includes M sub-film layers;
in the light-transmitting area, the first substrate comprises the first substrate base plate and a second combined film layer positioned on one side, close to the second substrate, of the first substrate base plate, and the second combined film layer comprises N sub-film layers to form the first concave surface; wherein M is greater than N;
in the display area, the second substrate comprises a second substrate base plate and a third combined film layer positioned on one side, close to the second substrate, of the second substrate base plate, and the third combined film layer comprises K sub-film layers;
in the light-transmitting area, the second substrate comprises the second substrate base plate and a fourth combined film layer positioned on one side, close to the first substrate, of the second substrate base plate, and the fourth combined film layer comprises L sub-film layers to form the second concave surface; wherein K is more than L.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the difference set between the M sub-film layers and the N sub-film layers includes a planarization layer, and the difference set between the K sub-film layers and the L sub-film layers includes an organic film layer.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, in the display area, the first substrate includes a first substrate and a first combined film layer located on a side of the first substrate close to the second substrate, and the first combined film layer includes M sub-film layers;
in the light-transmitting area, the first substrate comprises the first substrate base plate and a second combined film layer positioned on one side, close to the second substrate, of the first substrate base plate, and the second combined film layer comprises N sub-film layers to form the first convex surface; wherein M is less than N;
in the display area, the second substrate comprises a second substrate base plate and a third combined film layer positioned on one side, close to the second substrate, of the second substrate base plate, and the third combined film layer comprises K sub-film layers;
in the light-transmitting area, the second substrate comprises the second substrate base plate and a fourth combined film layer positioned on one side, close to the first substrate, of the second substrate base plate, and the fourth combined film layer comprises L sub-film layers to form the second convex surface; wherein K is less than L.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the difference set between the M sub-film layers and the N sub-film layers includes a planarization layer, and the difference set between the K sub-film layers and the L sub-film layers includes an organic film layer.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the first substrate is provided with a through hole in the light-transmitting area.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, in the display area, a sealant is disposed on a side of the liquid crystal layer close to the light-transmitting area, and is used for blocking liquid crystal from flowing into the light-transmitting area.
In a second aspect, an embodiment of the present invention further provides a display device, including the display panel provided in the embodiment of the present invention.
In the display panel and the display device provided by the embodiment of the invention, the functional plate which is positioned in the light-transmitting area of the display panel and is opposite to the display substrate is provided with the concave groove at one side close to the display substrate, and the concave groove is filled with the transparent medium with higher refractive index, so that the optical deflection structure is formed. Because the optical deflection structure can make light deflect, the visual angle range of the light-transmitting area can be enlarged, and the visual angle range of the camera is enlarged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
FIG. 1 is a schematic cross-sectional view of a prior art display panel along the thickness direction;
FIG. 2 is a schematic cross-sectional view of a prior art display panel along the thickness direction;
fig. 3 is a schematic cross-sectional view of a display panel along a thickness direction according to an embodiment of the invention;
fig. 4 is a schematic cross-sectional view of a display panel along a thickness direction according to an embodiment of the invention;
fig. 5 is a schematic cross-sectional view of a display panel according to an embodiment of the invention;
fig. 6 is a schematic cross-sectional view of a display panel according to an embodiment of the invention;
FIG. 7 is a schematic cross-sectional view of a display panel along a thickness direction according to an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of a display panel along a thickness direction according to an embodiment of the present invention;
fig. 9 is a schematic cross-sectional view of a display panel along a thickness direction according to an embodiment of the invention;
fig. 10 is a schematic cross-sectional view of a display panel along a thickness direction according to an embodiment of the invention;
fig. 11 is a schematic cross-sectional view of a display panel according to an embodiment of the invention;
fig. 12 is a schematic cross-sectional view of a display panel along a thickness direction according to an embodiment of the invention;
fig. 13 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
At present, electronic devices such as mobile phones gradually tend to be designed as full-screen, for example, full-screen with photosensitive components such as cameras arranged in a display area.
For a full screen with photosensitive assemblies such as a camera arranged in a display area, as shown in fig. 1, the cross-sectional view of the display panel along the thickness direction is a schematic view of the display panel in which holes are not designed in the film layer of the display panel at the positions corresponding to the photosensitive assemblies such as the camera in the display area. The display panel in fig. 1 includes a first substrate 20 and a second substrate 30, and a liquid crystal layer 40 is formed between the first substrate 20 and the second substrate 30 by filling liquid crystal molecules. The display panel in fig. 1 includes a light-transmitting area a and a display area B surrounding the light-transmitting area a, and if the sealant 50 is disposed on a side of the liquid crystal layer 40 close to the light-transmitting area a in the display area B, the display panel includes the light-transmitting area a, a non-display area C surrounding the light-transmitting area a, and the display area B surrounding the non-display area C. In the display region B, the sealant 50 is not necessarily disposed on the side of the liquid crystal layer 40 close to the light-transmitting region a, and thus the sealant 50 and the non-display region C are illustrated by dotted lines in fig. 1. The position corresponding to the light-transmitting area A can be correspondingly provided with photosensitive components such as a camera 10 and the like, and the light-transmitting area A can be provided with or without holes. In fig. 1, a hole is not cut in the transparent area a, and a camera 10 is correspondingly disposed. Fig. 2 illustrates the light-transmitting area a with a hole and a corresponding camera 10. In fig. 1 and 2, light can pass through the light-transmitting area a to reach a photosensitive component such as a camera 10, and a corresponding function is realized. Referring to the schematic light path diagrams (indicated by arrows) in fig. 1 and fig. 2, it can be seen that, since the light-transmitting area a in fig. 1 is not perforated, the viewing angle range α of the photosensitive elements such as the camera 10 is narrower compared to the case that the light-transmitting area a in fig. 2 is perforated.
The embodiment of the invention provides a display panel and a display screen, aiming at the technical problem that the visual angle range of a camera is narrow due to the fact that holes are not dug in the display panel. In the display panel and the display screen provided by the embodiment of the invention, the functional plate which is positioned in the light-transmitting area A of the display panel and is opposite to the display substrate is provided with the concave groove at one side close to the display substrate, and the concave groove is filled with the transparent medium with higher refractive index, so that the optical deflection structure is formed. Because the optical deflection structure can make light deflect, the visual angle range of the light-transmitting area A can be enlarged, and the visual angle range of the camera is enlarged.
The following describes in detail a specific embodiment of a display panel and a display device according to an embodiment of the present invention with reference to the drawings. It should be understood that the preferred embodiments described below are only for illustrating and explaining the present invention and are not to be used for limiting the present invention. And the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The thicknesses and shapes of the various film layers in the drawings are not to be considered true proportions, but are merely intended to illustrate the present invention.
Referring to fig. 3, fig. 3 is a schematic cross-sectional view of a display panel along a thickness direction according to an embodiment of the invention. An embodiment of the present invention provides a display panel having a light-transmitting area a0 and a display area B0 surrounding the light-transmitting area. The light-transmitting area a0 shown in fig. 3 is relatively large, and in practical implementation, the size and position of the light-transmitting area a0 may be set according to the requirements of the actual mounted components, and here, for convenience of illustration, the size and position of the light-transmitting area a0 are not limited, and in fig. 3, the light-transmitting area a0 is illustrated as a circle, and in practical implementation, the light-transmitting area a0 may also be in other shapes, such as an ellipse, a polygon, and the like. The position of the light-transmitting region a0 may be any position in the display panel, and is not limited herein. In addition, although one light-transmitting area a0 is shown in fig. 3 as an example, in the specific implementation, the number of light-transmitting areas a0 may be set according to the requirement of actually installing components, for example, if a front camera and other photosensitive components are required to be installed in a mobile phone, two or more light-transmitting areas a0 are required to be arranged on the display panel. For simplicity, the relative position of the light-transmitting area a0 is taken as an example of the light-transmitting hole of the camera.
With continued reference to fig. 3, the display panel in the embodiment of the invention includes a display substrate and a function board 100 disposed oppositely. The side of the functional plate 100 close to the display substrate is provided with a concave groove 60, the side of the concave groove 60 close to the display substrate is filled with a transparent medium 200, the refractive index of the transparent medium 200 is greater than that of the functional plate 100, and an optical deflection structure is formed, so that the visual angle range of the light-transmitting area A0 is enlarged. The material of the transparent medium 200 may be, but not limited to, an oca (optical Clear adhesive) material, or an ocr (optical Clear resin) material, and may also be other transparent materials.
Specifically, the display substrate includes a first substrate 101 and a second substrate 102 disposed opposite to each other, and an upper polarizer 32 and a transparent optical adhesive layer 33 are further disposed on a side of the second substrate 102 away from the first substrate 101. In a possible embodiment, an ink layer 34 is further disposed on a side of the transparent optical adhesive layer 33 away from the first substrate 101, and fig. 3 illustrates that the display panel is provided with the ink layer 34. The display panel is provided with a support part 300 and a liquid crystal layer 400 between the first substrate 101 and the second substrate 102 in the display region B0, and the first substrate 101 and the second substrate 102 are supported by at least one support part 300. In the display area B0, a plurality of color filter blocks 35 and an organic protective layer 40 are sequentially disposed on the second substrate 102 on a side close to the first substrate 101, wherein a black matrix 36 is disposed between each color filter block 35. The second substrate 102 is provided with a lower polarizer 37 at a side thereof away from the first substrate 101, wherein the upper polarizer 32 and the lower polarizer 37 have openings corresponding to the light-transmitting area a0, so that light can pass through the light-transmitting area a0 to reach the photosensitive elements such as the camera 10, and thus the corresponding function is achieved. In the embodiment of the present invention, the transparent medium 200 may be made of the same OCA material as the transparent optical adhesive layer 33, that is, the transparent medium 200 and the transparent optical adhesive layer 22 are integrated.
In some alternative embodiments, the functional plate 100 is a transparent cover plate located on a side of the transparent optical adhesive layer 33 away from the upper polarizer 32, a side of the transparent cover plate close to the display substrate is provided with a concave groove 60, that is, a side of the transparent cover plate close to the first substrate 101 is provided with a concave groove 60, a side of the concave groove 60 close to the first substrate 101 is filled with a transparent medium 200, and a refractive index of the transparent medium 200 is greater than a refractive index of the transparent cover plate, so as to form the optical deflection structure having the effect of a convex lens. Referring to the schematic light path diagram (shown by arrows) in fig. 3, fig. 3 illustrates an example of light exiting from the transparent area a0, and in order to better illustrate the light path, the concave groove 60 is filled with the transparent medium 200 to form a convex lens or a plano-convex lens in fig. 3, and therefore, the diagram is divided by a dotted line as opposed to the concave groove 60, which does not exist in practice. It can be seen that the light emitted from the camera 10 is refracted by the optical deflecting structure, and the light emitted from the light-transmitting area a0 is deflected with respect to the normal of the display panel in the thickness direction, and since the light path is reversed, the viewing angle of the light emitted from or entering the light-transmitting area a0 is deflected with respect to the normal of the display panel in the thickness direction, so that the viewing angle range of the light-transmitting area a0 is expanded.
In some alternative embodiments, the functional plate 100 is a touch panel located on a side of the transparent optical adhesive layer 33 away from the upper polarizer 32. Similarly, the side of the touch panel close to the first substrate 101 is provided with a concave groove 60, the side of the concave groove 60 close to the first substrate 101 is filled with a transparent medium 200, and the refractive index of the transparent medium 200 is greater than that of the touch panel or the glass cover plate, so as to form an optical deflection structure, and the viewing angle range of the light-transmitting area a0 is enlarged.
In one possible embodiment, the transparent medium 200 is a liquid transparent adhesive, but may be made of other materials.
In the embodiment of the invention, as shown in fig. 4, the display panel is in the display area B0, and the liquid crystal layer 400 is provided with the sealant 500 on a side close to the transparent area a0 to encapsulate the liquid crystal layer around the transparent area a0, so as to block the liquid crystal molecules from flowing into the transparent area a 0.
Referring to fig. 5, in a possible embodiment, in consideration of the use of the photosensitive elements such as the camera 10, a currently common way is to dig a through hole O (fig. 5 illustrates the boundary of the through hole O by a dotted line) in a portion of the film layer on the display panel, and the through hole O can be used to place the sensing elements such as the camera. Fig. 5 illustrates the drilling of holes in all layers of the first substrate 101 and the drilling of holes in some layers of the second substrate 102. However, only the first substrate 101 may be perforated, and the entire second substrate 102 (including the substrate and the film layer formed thereon) may not be perforated.
In the embodiment of the present invention, the sealant 500 is used to encapsulate the region where the through hole O is located, so as to block the liquid crystal molecules from flowing into the light transmissive region a 0.
In some alternative embodiments, referring to fig. 6, since the first substrate 101 is hollowed, the camera may extend into the through hole O, that is, a part of the components of the camera 10, for example, the lens 600 included in the camera 10, may be integrated into the through hole O. Since the lens 600 is provided in the through hole O, the height of the mounted camera 10 can be reduced, and even if the camera is thin, the entire camera 10 can be integrated in the through hole O. Fig. 6 illustrates a lens 600 as part of the camera head 10 assembly. Compared with the prior art (solution in which no lens is disposed in the through hole O) as shown in fig. 2, the display panel provided by the embodiment of the present invention reduces the overall height of the apparatus including the camera head 10, for example, a camera.
In some alternative embodiments, a light-transmitting structure is disposed between the first substrate 101 and the second substrate 102 in the light-transmitting region a0, and the light-transmitting structure may have a convex lens effect to further expand the viewing angle range of the light-transmitting region a 0. In a specific implementation, in the display panel provided in the embodiment of the present invention, the light-transmitting structure at least includes the following implementation manners:
the implementation mode is as follows:
fig. 7 is a schematic cross-sectional view of the display panel along the thickness direction. In the light-transmitting area a0, a first concave 71 is disposed on a side of the first substrate 101 close to the second substrate 102, a second concave 72 is disposed on a side of the second substrate 102 close to the first substrate 101, and a liquid crystal material is filled between the first concave 71 and the second concave 72 to form a light-transmitting structure. The first concave surface 71 and the second concave surface 72 can be formed by exposing certain film layers of the first substrate 101 and the second substrate 102 and developing to form the first concave surface 71 and the second concave surface 72.
The liquid crystal material between the first concave surface 71 and the second concave surface 72 may be formed by liquid crystal molecules flowing between the first substrate 101 and the second substrate 102. Referring to the schematic optical path diagram shown in fig. 7, taking the light exiting from the transparent area a0 in fig. 7 as an example, it can be seen that the light emitted from the camera 10 is refracted by the transparent structure formed by the first concave 71 and the second concave 72, and then refracted by the optical deflecting structure formed on the functional board 100, and the light exiting from the transparent area a0 is deflected greatly along the normal of the display panel along the thickness direction, so that the viewing angle range of the transparent area a0 is further expanded.
The implementation mode two is as follows:
fig. 8 is a schematic cross-sectional view of the display panel along the thickness direction. In the display region B0, the sealant 500 is disposed on a side of the liquid crystal layer close to the light-transmitting region a 0. The sealant 500 prevents liquid crystal molecules between the first substrate 101 and the second substrate 102 from flowing between the first concave surface 71 and the second concave surface 72. In the light-transmitting area a0, a first concave surface 71 is formed on a side of the first substrate 101 close to the second substrate 102, a second concave surface 72 is formed on a side of the second substrate 102 close to the first substrate 101, and a refractive material 700 is filled between the first concave surface 71 and the second concave surface 72 to form a light-transmitting structure. The refractive index of the refractive material 700 between the first concave surface 71 and the second concave surface 72 is greater than the refractive index of the corresponding material of the first concave surface 71 and the second concave surface 72. Similarly, the display panel shown in fig. 8 is the same as the display panel shown in fig. 7, so that the light emitted from the light-transmitting region a0 is greatly deflected with respect to the normal line of the display panel in the thickness direction, thereby further enlarging the viewing angle range of the light-transmitting region a 0.
In this embodiment, air may also be filled between the first concave surface 71 and the second concave surface 72, and the film layer where the first concave surface 71 and the second concave surface 72 are located is selected according to the refractive index of the air, so that the light-transmitting structure formed by filling the air between the first concave surface 71 and the second concave surface 72 can also further expand the viewing angle range of the light-transmitting region a 0.
The implementation mode is three:
fig. 9 is a schematic cross-sectional view of the display panel along the thickness direction. In the light-transmitting area a0, a side of the first substrate 101 close to the second substrate 102 is a first convex surface 81, a side of the second substrate 102 close to the first substrate 101 is a second convex surface 82, and a liquid crystal material is filled between the first convex surface 81 and the second convex surface 82 to form a light-transmitting structure. The first convex surface 81 and the second convex surface 82 can be formed by exposing certain film layers of the first substrate 101 and the second substrate 102, and developing to form the first convex surface 81 and the second convex surface 82.
The liquid crystal material between the first convex surface 81 and the second convex surface 82 may be formed by liquid crystal molecules flowing between the first substrate 101 and the second substrate 102. Referring to the schematic optical path diagram shown in fig. 10, taking the light exiting from the transparent area a0 as an example in fig. 10, it can be seen that the light emitted from the camera 10 is refracted by the transparent structure formed by the first convex surface 81 and the second convex surface 82, and then refracted by the optical deflecting structure formed on the functional board 100, and the light exiting from the transparent area a0 is deflected greatly along the normal of the display panel along the thickness direction, so that the viewing angle range of the transparent area a0 is further expanded.
The implementation mode is four:
fig. 10 is a schematic cross-sectional view of the display panel along the thickness direction. In the display region B0, the sealant 500 is disposed on a side of the liquid crystal layer close to the light-transmitting region a 0. The sealant 500 prevents liquid crystal molecules between the first substrate 101 and the second substrate 102 from flowing between the first convex surface 81 and the second convex surface 82. In the light-transmitting region a0, a side of the first substrate 101 close to the second substrate 102 is a first convex surface 81, a side of the second substrate 102 close to the first substrate 101 is a second convex surface 82, and a refractive material 700 is filled between the first convex surface 81 and the second convex surface 82, so as to form a light-transmitting structure. The refractive index of the refractive material 700 between the first convex surface 81 and the second convex surface 82 is smaller than the refractive index of the corresponding material of the first convex surface 81 and the second convex surface. Similarly, the display panel shown in fig. 10 is the same as the display panel shown in fig. 9, so that the light emitted from the light-transmitting region a0 is greatly deflected with respect to the normal of the display panel in the thickness direction, thereby further enlarging the viewing angle range of the light-transmitting region a 0.
In this embodiment, air may also be filled between the first convex surface 81 and the second convex surface 82, and the film layer on which the first convex surface 81 and the second convex surface 82 are located is selected according to the refractive index of the air, so that the light-transmitting structure formed by filling the air between the first convex surface 81 and the second convex surface 82 can also further expand the viewing angle range of the light-transmitting region a 0.
In a possible embodiment, the first concave surface 71, the second concave surface 72, the first convex surface 81 and the second convex surface 82 are all cambered surfaces. The first concave surface 71, the second concave surface 72, the first convex surface 81, and the second convex surface 82 are formed by selectively exposing and developing a part of the film layers of the first substrate 101 and the second substrate 102 by means of exposure.
In some alternative embodiments, referring to fig. 11, fig. 11 shows the film structure of the first substrate 101 and the second substrate 102. The display panel provided in the embodiment of the present invention is a liquid crystal display panel, that is, in fig. 3, the first substrate 101 may be an array substrate, the second substrate 102 may be a color film substrate, and liquid crystal molecules are filled in gaps of each supporting portion between the first substrate 101 and the second substrate 102. In addition, the display panel may be other possible types of display panels.
Specifically, as for the first base plate 101, as shown in fig. 11, in the display area B0, the first base plate 101 may include a first substrate base plate 21 and a first combined film layer located on a side of the first substrate base plate 21 close to the second base plate 102, the first combined film layer includes M sub-film layers, and the lower polarizer 20 is located on a side of the first substrate base plate 21 away from the second base plate 102. For example, taking M-5 as an example, the first combined film layer may include 5 film layers of the buffer layer 22, the first insulating layer 23, the second insulating layer 24, the planarization layer 25, and the passivation layer 26. The buffer layer 22 is located on one side of the first substrate 21 close to the second substrate 102, the first insulating layer 23 is located on one side of the buffer layer 22 close to the second substrate 102, the second insulating layer 24 is located on one side of the first insulating layer 23 close to the second substrate 102, the planarization layer 25 is located on one side of the second insulating layer 24 close to the second substrate 102, and the passivation layer 26 is located on one side of the planarization layer 25 close to the second substrate 102.
And the first concave surface 71 is formed on the first substrate 101 in the light-transmitting area a0 by exposure, which includes the following implementation manners:
the first implementation mode comprises the following steps:
as shown in fig. 11, in the light-transmitting area a0, the first substrate 101 may include a first substrate 21 and a second combined film layer located on a side of the first substrate 21 close to the second substrate 102, the second combined film layer includes N sub-film layers, and the lower polarizer 20 is located on a side of the first substrate 21 away from the second substrate 201. For example, taking N-4 as an example, the second combined film layer may include 4 film layers of the buffer layer 22, the first insulating layer 23, the second insulating layer 24, and the passivation layer 26. The buffer layer 22 is located on one side of the first substrate 21 close to the second substrate 102, the first insulating layer 23 is located on one side of the buffer layer 22 close to the second substrate 102, the second insulating layer 24 is located on one side of the first insulating layer 23 close to the second substrate 102, and the passivation layer 26 is located on one side of the second insulating layer 24 close to the second substrate 102.
That is, the difference set between the M and N sub-film layers includes the planarization layer 25, the planarization layer 25 exists only in the display region B0, and the buffer layer 22, the first insulating layer 23, the second insulating layer 24, and the passivation layer 26 are not exposed, so that the buffer layer 22, the first insulating layer 23, the second insulating layer 24, and the passivation layer 26 exist in the display region B0 and the light transmission region a 0. I.e., within display area B0, the first combined film layer remains. Portions of the film layer, such as the planarization layer 25, are exposed at the locations of the light-transmitting regions a0 to form fully removed areas of negative photoresist to form the first recessed surface 71. It should be noted that, since the planarization layer 25 is exposed, the passivation layer 26 in the light-transmitting area a0 is correspondingly in contact with the second insulating layer 24, that is, the same film layers in the display area B0 and the light-transmitting area a0 are not in the same plane, for convenience of illustration, fig. 11 only illustrates that the passivation layer 26 in the light-transmitting area a0 is collapsed downward, but the passivation layer 26 in the display area B0 and the light-transmitting area a0 is not broken, so as to form the first concave 71.
The second implementation mode comprises the following steps:
in some alternative embodiments, the difference set between the M and N sub-film layers in the light-transmissive region a0 may also include other possible film layers, such as buffer layers.
As for the second substrate 102, as shown in fig. 11, in the display area B0, the second substrate 102 includes: the second substrate 31 and a third film layer on the side of the second substrate 31 close to the second substrate 102 are combined, and the third film layer includes K sub-film layers. For example, taking K as 4 as an example, the third combined film layer may include a plurality of color filter film blocks 35 and Black Matrixes (BM) 36 arranged at intervals, the Black matrixes 36 are arranged between the color filter film blocks 35, and an organic film layer for flattening is arranged on a side of the color filter film blocks 35 close to the first substrate 101. An upper polarizer 32 and a transparent optical adhesive layer 33 are sequentially disposed on one side of the second substrate 31 away from the first substrate 101. The color filter film block 35 is present only in the display region B0, the black matrix 36 is present only in the display region B0, and the function board 100 is present in the display region B0 and the light-transmitting region a 0.
And the second concave surface 72 is formed on the second substrate 102 in the light-transmitting area a0 by exposure, which includes the following implementation manners:
the first implementation mode comprises the following steps:
as shown in fig. 11, in the light-transmitting area a0, the second substrate 102 may include a second substrate 31 and a fourth combined film layer located on a side of the second substrate 31 close to the second substrate 102, where the fourth combined film layer includes L sub-film layers, for example, taking L ═ 3 as an example, the fourth combined film layer may include a plurality of color filter blocks 35 and black matrixes 36 arranged at intervals, the black matrixes 36 are arranged between the color filter blocks 35, and an organic film layer having a flattening function is arranged on a side of the color filter blocks 35 close to the second substrate 31, where the organic film layer located in the light-transmitting area a0 is exposed, and the organic film layer is exposed to form a negative photoresist completely removed area, so as to form a second concave 72. That is, the difference set between K and L sub-film layers includes the organic film layer, and the third combined film layer remains in the display region B0, and a portion of the film layer, for example, the organic film layer 38, is exposed at the position of the light-transmitting region a0, thereby forming the second concave surface 72.
The second implementation mode comprises the following steps:
in some alternative embodiments, in the light-transmitting region a0, a portion of the organic film in the fourth combined film is exposed to light to form the second concave surface 72.
In the embodiment of the invention, the first substrate 101 located in the display region B0 forms the first convex surface 81 of the light-transmitting region a0 by exposure, and the second substrate 102 located in the display region B0 forms the second convex surface 82 of the light-transmitting region a0 by exposure.
For the first substrate 101, in the light-transmitting area a0, the first substrate 101 may include a first substrate 21 and a first combined film layer located on a side of the first substrate 21 close to the second substrate 102, where the first combined film layer includes N sub-film layers, and a lower polarizer 20 is located on a side of the first substrate 21 away from the second substrate 102. For example, taking N-5 as an example, the first combined film layer may include 5 film layers of the buffer layer 22, the first insulating layer 23, the second insulating layer 24, the planarization layer 25, and the passivation layer 26. The buffer layer 22 is located on one side of the first substrate 21 close to the second substrate 102, the first insulating layer 23 is located on one side of the buffer layer 22 close to the second substrate 102, the second insulating layer 24 is located on one side of the first insulating layer 23 close to the second substrate 102, the planarization layer 25 is located on one side of the second insulating layer 24 close to the second substrate 102, and the passivation layer 26 is located on one side of the planarization layer 25 close to the second substrate 102.
And the first convex surface 81 of the light-transmitting area a0 is formed on the first substrate 101 in the display area B0 by exposure, which includes the following implementation manners:
the first implementation mode comprises the following steps:
as shown in fig. 12, in the display area B0, the first substrate 101 may include a first substrate 21 and a second combined film layer located on a side of the first substrate 21 close to the second substrate 102, the second combined film layer includes M sub-film layers, and the lower polarizer 20 is located on a side of the first substrate 21 away from the second substrate 201. For example, taking M-4 as an example, the second combined film layer may include 4 film layers of the buffer layer 22, the first insulating layer 23, the second insulating layer 24, and the passivation layer 26. The buffer layer 22 is located on one side of the first substrate 21 close to the second substrate 102, the first insulating layer 23 is located on one side of the buffer layer 22 close to the second substrate 102, the second insulating layer 24 is located on one side of the first insulating layer 23 close to the second substrate 102, and the passivation layer 26 is located on one side of the second insulating layer 24 close to the second substrate 102.
That is, the difference set between the N and M sub-film layers includes the planarization layer 25, and the planarization layer located in the display region B0 is exposed to form a negative photoresist completely removed region, so that the planarization layer 25 exists only in the light transmission region a0 to form the first convex surface 81. I.e., within the light-transmitting region a0, the first combined film layer remains. A portion of the film layer, for example, the planarization layer 25, is exposed at the position of the display area B0, thereby forming the first convex surface 81. It should be noted that, since the planarization layer 25 located in the display region B0 is exposed, the passivation layer 26 located in the transparent region a0 is correspondingly in contact with the second insulating layer 24, that is, the same film layers located in the display region B0 and the transparent region a0 are not in the same plane, for convenience of illustration, fig. 11 only illustrates that the passivation layer 26 located in the display region B0 is collapsed downward, but the passivation layer 26 located in the display region B0 and the transparent region a0 is not broken, so as to form the first convex surface 81 located in the transparent region a 0.
The second implementation mode comprises the following steps:
in some alternative embodiments, the difference set between the N and M sub-film layers in the display region B0 may also include other possible film layers, such as a buffer layer.
As for the second substrate 102, as shown in fig. 12, in the light-transmitting region a0, the second substrate 102 includes: the second substrate 31 and a third film layer on the side of the second substrate 31 close to the second substrate 102 are combined, and the third film layer includes K sub-film layers. For example, taking K as 4 as an example, the third combined film layer may include a plurality of color filter film blocks 35 and 36 arranged at intervals, a black matrix 36 is arranged between the color filter film blocks 35, and an organic film layer for performing a planarization function is arranged on one side of the color filter film blocks 35 close to the second base substrate 31. An upper polarizer 32 and a transparent optical adhesive layer are sequentially arranged on one side of the second substrate 31 away from the first substrate 101. The color filter film block 35 is present only in the display region B0, the black matrix 36 is present only in the display region B02, and the function board 100 is present in the display region B0 and the light-transmitting region a 0.
And the second substrate 102 in the display region B0 is exposed to form the second convex surface 82 in the light-transmitting region a0, which includes the following implementation manners:
the first implementation mode comprises the following steps:
as shown in fig. 12, in the display region B0, the second substrate 102 may include a second substrate 31 and a fourth combined film layer located on a side of the second substrate 31 close to the second substrate 102, where the fourth combined film layer includes L sub-film layers, for example, taking L ═ 3 as an example, the fourth combined film layer may include a plurality of color filter film blocks 35 and black matrixes 36 arranged at intervals, the black matrixes 36 are arranged between the color filter film blocks 35, and an organic film layer for performing a planarization function is arranged on a side of the color filter film blocks 35 close to the second substrate 31. The organic film layer in the display area B0 is exposed to form a negative photoresist completely removed area, so that the second convex 82 in the light-transmitting area a0 is formed. That is, the difference set between K and L sub-film layers includes the organic film layer, and the third combined film layer remains in the light-transmitting region a0, and a portion of the film layer, for example, the organic film layer, is exposed at the position of the display region B0, thereby forming the second convex surface 82.
The second implementation mode comprises the following steps:
in some alternative embodiments, in the display region B0, a part of the organic film layer in the fourth combined film layer is exposed to light to form the second convex surface 82.
In the display panel provided in the embodiment of the present invention, when the first concave surface 71, the first convex surface 72, the first convex surface 81, or the second convex surface 82 is formed according to the first implementation manner or the second implementation manner, only a part of a certain film layer may be exposed, and a part may be remained, for example, only a part of the planarization layer 25 may be exposed, and a part of the planarization layer 25 may be remained. When the specific implementation is, the specific implementation can be selected according to actual needs, and is not limited herein. In fig. 11 to 12, specific arrangement film layers of the pixel electrode layer, the common electrode layer and the thin film transistor in the display area a0 are not shown, and the specific arrangement manner of the film layers may be performed according to actual process requirements. The first substrate 101 may have only one light-transmitting layer, such as inorganic material silicon dioxide, or a planarization layer. The second substrate 102 may not include the color filter module and the black matrix, and only includes the planarization layer.
Referring to fig. 13, based on the same inventive concept, an embodiment of the present invention further provides a display device, including the display panel provided in the embodiment of the present invention. The display device may be: the display device can be a liquid crystal display, a liquid crystal television and other display devices, and can also be mobile equipment such as a mobile phone, a tablet personal computer, a notebook, an intelligent watch, an intelligent bracelet, VR/AR glasses and the like. As shown in fig. 13, which is a top view of the display device in the embodiment of the present invention when the display device is a mobile phone, a display screen may adopt a structure of any one of the display panels, which is not limited herein, in fig. 13, the display area is surrounded by a non-display area (generally, a frame area around the display area), a light-transmitting area is disposed in the display area, and a photosensitive component such as a camera is disposed in the light-transmitting area. And the optical deflection structure can deflect light, namely the visual angle range of the light-transmitting area can be enlarged, so that the visual angle range of the camera is enlarged. Since the display device provided in this embodiment includes the display panel described in the above embodiment, the display device also has the advantages associated with the display panel, and the implementation of the display device may refer to the above embodiment of the display panel, and repeated details are omitted.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (8)

1. A display panel having a light-transmitting area and a display area surrounding the light-transmitting area, comprising:
a display substrate;
a function board disposed opposite to the display substrate;
in the light-transmitting area, a concave groove is formed in one side, close to the display substrate, of the functional plate, and a transparent medium is filled in one side, close to the display substrate, of the concave groove to form an optical deflection structure, wherein the refractive index of the transparent medium is larger than that of the functional plate;
the display substrate comprises a first substrate and a second substrate which are oppositely arranged, and a light-transmitting structure which can expand the visual angle range of the light-transmitting area is arranged between the first substrate and the second substrate in the light-transmitting area;
frame glue is arranged on one side, close to the light-transmitting area, of the liquid crystal layer in the display area; in the light-transmitting area, a first concave surface is arranged on one side, close to the second substrate, of the first substrate, a second concave surface is arranged on one side, close to the first substrate, of the second substrate, and a refraction material or air is filled between the first concave surface and the second concave surface to form the light-transmitting structure, wherein the refraction index of the refraction material is larger than that of materials corresponding to the first concave surface and the second concave surface; alternatively, the first and second electrodes may be,
in the light-transmitting area, a first convex surface is arranged on one side of the first substrate close to the second substrate, a second convex surface is arranged on one side of the second substrate close to the first substrate, and a liquid crystal material is filled between the first convex surface and the second convex surface to form the light-transmitting structure; alternatively, the first and second electrodes may be,
in the display area, frame glue is arranged on one side, close to the light-transmitting area, of the liquid crystal layer; in the printing opacity district, first base plate is close to one side of second base plate is first convex surface, the second base plate is close to one side of first base plate is the second convex surface, first convex surface with it has refractive material or air to fill between the second convex surface, forms the printing opacity structure, wherein, refractive material's refractive index is less than first convex surface with the refractive index of the material that the second convex surface corresponds.
2. The display panel of claim 1, wherein the transparent medium is a liquid transparent adhesive.
3. The display panel according to claim 1, wherein a support portion and a liquid crystal layer are provided between the first substrate and the second substrate in the display region, a plurality of color filter blocks are provided on a side of the second substrate adjacent to the first substrate, and a black matrix is provided between the color filter blocks; an upper polarizer is arranged on one side, far away from the first substrate, of the second substrate, a lower polarizer is arranged on one side, far away from the second substrate, of the first substrate, and openings are formed in the upper polarizer and the lower polarizer corresponding to the light transmitting areas.
4. The display panel of claim 1, wherein the first concave surface and the second concave surface are both curved surfaces.
5. The display panel of claim 1, wherein the first convex surface and the second convex surface are both curved surfaces.
6. The display panel of claim 5, wherein in the display area, the first substrate comprises a first substrate base plate and a first combined film layer on a side of the first substrate base plate adjacent to the second substrate, the first combined film layer comprising M sub-film layers;
in the light-transmitting area, the first substrate comprises the first substrate base plate and a second combined film layer positioned on one side, close to the second substrate, of the first substrate base plate, and the second combined film layer comprises N sub-film layers to form the first convex surface; wherein M is less than N;
in the display area, the second substrate comprises a second substrate base plate and a third combined film layer positioned on one side, close to the second substrate, of the second substrate base plate, and the third combined film layer comprises K sub-film layers;
in the light-transmitting area, the second substrate comprises the second substrate base plate and a fourth combined film layer positioned on one side, close to the first substrate, of the second substrate base plate, and the fourth combined film layer comprises L sub-film layers to form the second convex surface; wherein K is less than L.
7. The display panel of claim 6, wherein the set of differences between the M and N sub-film layers comprises a planarization layer, and the set of differences between the K and L sub-film layers comprises an organic film layer.
8. A display device, comprising: the display panel of any one of claims 1-7.
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