CN108681131B - Display device - Google Patents

Display device Download PDF

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Publication number
CN108681131B
CN108681131B CN201810845459.XA CN201810845459A CN108681131B CN 108681131 B CN108681131 B CN 108681131B CN 201810845459 A CN201810845459 A CN 201810845459A CN 108681131 B CN108681131 B CN 108681131B
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CN
China
Prior art keywords
hole
cover plate
display panel
display
display area
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Active
Application number
CN201810845459.XA
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Chinese (zh)
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CN108681131A (en
Inventor
杨栩
刘博智
陈如星
许喜爱
陈国照
柯耀作
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiamen Tianma Microelectronics Co Ltd
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Xiamen Tianma Microelectronics Co Ltd
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Priority to CN201810845459.XA priority Critical patent/CN108681131B/en
Publication of CN108681131A publication Critical patent/CN108681131A/en
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Publication of CN108681131B publication Critical patent/CN108681131B/en
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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
    • 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
    • G02F1/133528—Polarisers
    • 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
    • G02F1/1336—Illuminating devices
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

The display device comprises a cover plate and a display panel which are oppositely arranged; the display panel comprises a through hole, a first non-display area, a display area and a second non-display area, wherein the through hole penetrates through the display panel along the thickness direction of the display panel; the first non-display area surrounds the through hole, the display area surrounds the first non-display area, and the second non-display area surrounds the display area; the through hole is covered by the orthographic projection of the cover plate on the plane of the display panel; the display panel further comprises an upper polaroid, the upper polaroid is positioned on one side of the display panel close to the cover plate, and a shading material is arranged on the surface of one side of the upper polaroid close to the through hole. The display device provided by the invention can effectively improve the light leakage problem of the display panel and improve the shooting effect of the photosensitive devices such as the camera and the like while improving the screen ratio of the display panel.

Description

Display device
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
With the development of display panels, people no longer only satisfy the conventional performance indexes of large size, high definition and the like of the display panels, but also have more diversified requirements on the display panels. The display device with the high screen occupation ratio can bring brand-new feeling and experience to users, so that the display device is favored by the users. Display device in the existing market generally sets up the camera in the non-display area to the area in increase non-display area leads to the area reduction in display area, and the screen ratio descends, is unfavorable for the user to obtain good visual experience effect.
Therefore, in order to increase the screen occupation ratio of the display device, a full-screen display device has been gradually appeared in the market, that is, a hole is dug in a region of the display panel corresponding to a device such as a camera, so as to provide a mounting region for the device such as the camera. However, if the hole is dug improperly, light leakage of the inner side wall of the through hole is easily caused, so that the problem of bright lines appears in the area of the display device corresponding to the camera, and user experience is affected; meanwhile, leaked light can enter the camera, and the shooting performance of the camera is affected.
Disclosure of Invention
In view of the above, the present invention provides a display device, which can improve the screen ratio of a display panel and effectively improve the problem of light leakage in the area of the display device corresponding to a camera.
The application provides a display device, including:
the cover plate and the display panel are oppositely arranged;
the display panel comprises a through hole, a first non-display area, a display area and a second non-display area, wherein the through hole penetrates through the display panel along the thickness direction of the display panel; the first non-display area surrounds the through hole, the display area surrounds the first non-display area, and the second non-display area surrounds the display area;
the through hole is covered by the orthographic projection of the cover plate on the plane of the display panel;
the display panel further comprises an upper polaroid, the upper polaroid is positioned on one side of the display panel close to the cover plate, and a shading material is arranged on the surface of one side of the upper polaroid close to the through hole.
Compared with the prior art, the display device disclosed by the invention has the following beneficial effects that: the display panel is provided with the through hole, the first non-display area surrounds the through hole, the display area surrounds the first non-display area, and the second non-display area surrounds the display area; the cover plate does not dig holes at the position corresponding to the through hole, and meanwhile, the surface of one side, close to the through hole, of the upper polaroid is provided with a shading material. Due to the arrangement of the through holes, partial components of photosensitive devices such as a camera and the like can be arranged in the display panel, so that the overall thickness of the display device is reduced, meanwhile, the occupied area of a non-display area can be reduced, the width of a frame is reduced, and further, the high screen occupation ratio is realized; in addition, the photosensitive devices such as the camera can be closer to the cover plate, the visual range of the photosensitive devices such as the camera can be enlarged, and the outside light rays which can be obtained can be increased; the surface of the polarizer close to one side of the through hole is provided with the shading material, so that bright lines around the through hole due to light leakage can be avoided; meanwhile, light rays of the backlight light source can be prevented from entering the through hole through the cover plate in a reflecting mode, and therefore the photosensitive effect of photosensitive devices such as a camera is improved.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a display device according to the present invention;
FIG. 2 is a cross-sectional view along AA' of FIG. 1;
FIG. 3 is another cross-sectional view taken along direction AA' in FIG. 1;
FIG. 4 is a further cross-sectional view taken along direction AA' in FIG. 1;
FIG. 5 is a further cross-sectional view taken along direction AA' in FIG. 1;
FIG. 6 is a further cross-sectional view taken along direction AA' in FIG. 1;
FIG. 7 is a cross-sectional view of the cover plate of FIG. 6;
FIG. 8 is a further cross-sectional view taken along direction AA' in FIG. 1;
FIG. 9 is a cross-sectional view of the cover plate of FIG. 8;
fig. 10 is a sectional view of another cover plate of a display device provided by the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a display device according to the present invention, and fig. 2 is a cross-sectional view along direction AA' in fig. 1. The display device comprises a cover plate 10 and a display panel 20 which are oppositely arranged, wherein the display panel 20 comprises a through hole 201 penetrating through the display panel 20 along the thickness direction of the display panel, a first non-display area 202, a display area 203 and a second non-display area 204, the first non-display area 202 is arranged around the through hole 201, the display area 203 is arranged around the first non-display area 202, and the second non-display area 204 is arranged around the display area 203; the cover plate 10 covers the through hole 201 in the orthographic projection of the plane where the display panel 20 is located; the display panel 20 further includes an upper polarizer 21a, the upper polarizer 21a is located on a side of the display panel 20 close to the cover plate 10, and a light shielding material 701 is disposed on a surface of the upper polarizer 21a close to the side of the through hole 201.
It should be noted that, in fig. 2, only the light-shielding material 701(70) and the upper polarizer 21a are located on the same plane and have the same thickness as each other for illustration, in the practical application process, the thickness and the width of the light-shielding material 701 may be set according to needs, which is not specifically limited in this application.
Specifically, according to the display device provided by the invention, the display area 203 is arranged to surround the first non-display area 202, and the first non-display area 202 is arranged to surround the through hole 201, so that part of components of the photosensitive devices such as the camera can be arranged inside the display panel 20, the overall thickness of the display device is reduced, meanwhile, the photosensitive devices such as the camera are closer to the cover plate 10, the visible range of the photosensitive devices such as the camera can be enlarged, and the available external light is increased. The through hole 201 is covered by the orthographic projection of the cover plate 10 on the plane of the display panel 20, that is, no hole is dug at the position of the cover plate 10 facing the through hole 201, so that the photosensitive devices such as a camera can be better protected from being interfered by external water vapor and oxygen, and meanwhile, the display panel 20 can be physically protected. The light-shielding material 701 is disposed on the surface of the upper polarizer 21a close to the through hole 201, that is, the light-shielding material 701 is disposed around the through hole 201 for a circle, so that light inside the display panel 20 can be prevented from being emitted through the area (located in the first non-display area 202) of the upper polarizer 21a close to the through hole 201, and bright lines are generated around the through hole 201; meanwhile, light rays of the backlight source can be prevented from being reflected by the cover plate 10 to enter the through hole 201, and accordingly the photosensitive effect of photosensitive devices such as a camera is improved.
In some alternative embodiments, please refer to fig. 3, fig. 3 is another cross-sectional view along direction AA' in fig. 1. The display device further comprises an optical adhesive layer 30, the optical adhesive layer 30 is located between the cover plate 10 and the display panel 20, and a light shielding material 702(70) is arranged on the surface of the optical adhesive layer 30 close to one side of the through hole 201.
It should be noted that the light-shielding material 701 disposed on the surface of the upper polarizer 21a close to the through hole 201 and the light-shielding material 702 disposed on the surface of the optical adhesive layer 30 close to the through hole 201 may be the same light-shielding material 70 or different light-shielding materials 70; the thickness and width of the two may be the same or different, and the present application is not particularly limited as long as the light shielding function can be achieved. When the light shielding material 701 and the light shielding material 702 are made of the same material, they may be integrally formed in the same process, or may be designed differently according to actual needs, which is not specifically limited in this application.
Specifically, the optical adhesive 30 is disposed between the cover plate 10 and the display panel 20 in the embodiment, and the optical adhesive 30 has high adhesion and light transmittance, so that the cover plate 10 and the display panel 20 can be well attached to each other, most of external force is absorbed when the cover plate 10 is pressed, and impact of the external force on the display panel 20 is reduced, so that the falling-resistant strength of the display device is effectively improved, the edge breakage and splintering of the cover plate 10 or the display panel 20 are reduced, and the injury to a human body is reduced. Meanwhile, the surface of the optical adhesive layer 30 close to the side of the through hole 201 is provided with the light shielding material 702, so that the problem of bright lines around the through hole 201 caused by light leakage during display can be further improved.
In some alternative embodiments, with reference to fig. 3, in the first non-display area 202, a first ink area 80 is disposed on a side of the cover plate 10 close to the optical adhesive layer 30, and an orthogonal projection of the first ink area 80 on a plane where the optical adhesive layer 30 is located is a closed figure and surrounds an orthogonal projection of the through hole 201 on the plane where the optical adhesive layer 30 is located.
It can be understood that the orthographic projection of the through hole 201 on the plane of the optical adhesive layer 30 is circular; the orthographic projection of the first ink area 80 on the plane of the optical adhesive layer 30 is a closed figure, that is, the first ink area 80 is arranged around the through hole 201. The shape of the first ink region 80 may be adjusted according to the shape of the through hole 201, and may be a circular ring shape or other shapes, which is not limited in this application.
Specifically, in the first non-display area 202 of the display panel 20, some traces or devices are usually disposed, and the first ink area 80 can be disposed to perform a shielding function, so that the display panel has a better appearance visual effect; meanwhile, light inside the display panel 20 can be prevented from being emitted from the position of the cover plate 10 facing the through hole 201 through the first non-display area 202, and the problem of bright lines around the through hole 201 is avoided.
In some optional embodiments, please refer to fig. 2 and fig. 3, the display panel 20 further includes a color filter substrate 22 and an array substrate 23, which are disposed opposite to each other, the color filter substrate 22 is located on a side of the upper polarizer 21a away from the cover plate 10, and the array substrate 23 is located on a side of the color filter substrate 22 away from the cover plate 10; in the first non-display area 202, the sealant 24 is disposed between the color film substrate 22 and the array substrate 23, and an orthographic projection of the sealant 24 on a plane where the array substrate 23 is located is a closed figure and surrounds an orthographic projection of the through hole 201 on the plane where the array substrate 23 is located.
It is understood that, as shown in fig. 2 and 3, the display panel 20 further includes a liquid crystal layer LC between the color film substrate 22 and the array substrate 23, and a lower polarizer 21b on a side of the array substrate 23 away from the cover 10.
Specifically, for the liquid crystal display panel, generally, liquid crystal is dropped on any One of the array substrate and the color filter substrate by an ODF (One Drop Filling) process, frame glue is coated on the other substrate, and then the array substrate and the color filter substrate are aligned to form the liquid crystal panel. Because the display panel 20 of the present invention has the through hole 201 penetrating along the thickness direction thereof, the sealant 24 can prevent the liquid crystal LC of the display panel 20 from entering the through hole, prevent the uneven picture caused by too small amount of liquid crystal in the display area 203 around the through hole 201, and ensure the display effect of the display panel 20.
In some optional embodiments, with reference to fig. 3, a light shielding material 703 is disposed on a surface of at least one of the color film substrate 22, the array substrate 23 and the sealant 24, the surface being close to the through hole 201. It should be noted that, in fig. 3, only the surfaces of the color film substrate 22, the array substrate 23, and the sealant 24 close to the through hole 201 are provided with the light-shielding material 703 as an example, and the specific setting conditions may be set according to actual needs. The length of the light-shielding material 703 in the thickness direction of the display panel 20 may also be set according to actual conditions, and fig. 3 illustrates that only one side of the light-shielding material 703 close to the cover plate 10 and one side of the color filter substrate 22 close to the cover plate 10 are in the same plane, and one side of the light-shielding material 703 far from the cover plate 10 and one side of the array substrate 23 far from the cover plate 10 are in the same plane. It is understood that a light shielding material (not shown in fig. 3) may also be disposed on a surface of the lower polarizer 21b near the through hole 201, and the light shielding material may be integrally formed with the light shielding material 703 or separately designed, and the specific arrangement may be performed according to the need, which is not limited in this application.
Specifically, a light-shielding material 703 is disposed on a surface of at least one of the color film substrate 22, the array substrate 23 and the sealant 24, which is close to one side of the through hole 201, that is, the light-shielding material 703 is disposed on an inner sidewall of the through hole 201, where the inner sidewall of the through hole 201 is actually formed by digging holes in the color film substrate 22, the array substrate 23 and the sealant 24. The light shielding material 703 is arranged on the inner side wall of the through hole 201, so that light leakage of the side wall of the through hole 201 can be prevented, and the shooting effect of photosensitive devices such as a camera is further improved.
In some optional embodiments, referring to fig. 3, in the first non-display area 202, a first black matrix 221 is disposed on a side of the color filter substrate 22 close to the upper polarizer 21a, and an orthographic projection of the first black matrix 221 on a plane where the color filter substrate 22 is located is a closed graph and surrounds an orthographic projection of the through hole 201 on the plane where the color filter substrate 22 is located.
It can be understood that an orthographic projection of the first black matrix 221 on the plane of the color filter substrate 22 is a closed graph and surrounds an orthographic projection of the through hole 201 on the plane of the color filter substrate 22, that is, the first black matrix 221 is arranged around the through hole 201. A circle of the first black matrix 221 is arranged around the through hole 201 on the side of the color film substrate 22 close to the upper polarizer 21a, so that light rays inside the display panel 20 can be prevented from being emitted from the position, right opposite to the through hole 201, of the cover plate 10 through the first non-display area 202, and the problem of bright lines around the through hole 201 is avoided.
In some alternative embodiments, please refer to fig. 4, fig. 4 is a cross-sectional view along AA' of fig. 1. In the first non-display area 202, a second black matrix 222 is disposed on a side of the color filter substrate 22 away from the upper polarizer 21a, and an orthographic projection of the second black matrix 222 on a plane where the color filter substrate 22 is located is a closed graph and surrounds an orthographic projection of the through hole 201 on the plane where the color filter substrate 22 is located. A circle of the first black matrix 222 is arranged around the through hole 201 on the side of the color film substrate 22 away from the upper polarizer 21a, so that light rays inside the display panel 20 can be prevented from being emitted from the position of the cover plate 10 facing the through hole 201 through the first non-display area 202, the problem of bright lines around the through hole 201 is avoided, and the display effect is ensured.
In some alternative embodiments, as shown in FIG. 5, FIG. 5 is a further cross-sectional view along AA' of FIG. 1. The display device further includes a backlight unit 40 and a light sensing device 50, the backlight unit 40 being disposed at a side of the display panel 20 away from the cover plate 10; the backlight unit 40 comprises a backlight hole 40a penetrating through the backlight unit 40 along the thickness direction thereof, the through hole 201 is at least partially overlapped with the orthographic projection of the backlight hole 40a on a first surface 10a, the first surface 10a is a plane on one side of the cover plate 10 far away from the backlight unit 40, and the photosensitive device 50 is arranged in a channel formed by the backlight hole 40a and the through hole 201; in the first region 101, a side of the cover plate 10 facing the backlight unit 40 is provided with a first convex portion 11, and an orthographic projection of the first convex portion 11 on the first surface 10a is a closed figure and surrounds an orthographic projection of the first photosensitive assembly 51 on the first surface 10 a; the first region 101 is a region of the cover plate 10 corresponding to the first non-display region 202, and the first photosensitive assembly 51 is located at a portion of the photosensitive device 50 located in the channel. The surface of the first protrusion 11 facing away from the first photosensitive element 51 is provided with a light shielding material 704 (70).
It should be noted that the first surface 10a is a surface of the light-emitting side of the cover plate 10; the first region 101 is a region of the cover 10 corresponding to the first non-display region 202, in other words, an orthogonal projection of the first region 101 of the cover 10 on the first surface 10a falls within an orthogonal projection of the first non-display region 202 on the first surface 10 a.
It is understood that the backlight unit 40 further includes optical films (not shown in fig. 5) such as a reflective sheet, a light guide plate, a diffusion sheet, a lower light enhancement sheet, and an upper light enhancement sheet, and a housing (not shown in fig. 5) for accommodating the optical films, and the specific arrangement manner of the optical films and the material and arrangement manner of the housing are not particularly limited in this invention, and may be arranged according to actual situations.
Specifically, the cover plate 10 is provided with the first protrusion 11 on a side corresponding to the first non-display area 202 and facing the backlight unit 40, that is, the first protrusion 11 is arranged around the through hole 201 for one circle, and the light shielding material 704 is arranged on the periphery of the first protrusion 11 on a side away from the first photosensitive assembly 51, so that the possibility that light of a light emitting area leaks to the area where the first through hole 201 is located is effectively reduced, and the problem of bright lines around the through hole 201 during display is improved; avoid simultaneously causing the influence to the optical effect of camera when first through-hole 201 position sets up the camera, shelter from the side light leak that display panel 20 is close to through-hole 201 promptly and get into the light-taking area of first sensitization subassembly 51, prevent that photosensitive devices such as camera from being disturbed to improve the shooting effect.
In some alternative embodiments, as shown in fig. 6 and 7, fig. 6 is a further cross-sectional view along direction AA' in fig. 1, and fig. 7 is a cross-sectional view of the cover plate in fig. 6. Fig. 6 follows the reference numerals of fig. 2 to 5, and the description of the same parts is omitted. In the second region 102, a second protrusion 12 is disposed on a side of the cover plate 10 facing the backlight unit 40, and the second protrusion 12 abuts against an orthographic projection of the first protrusion 11 on a plane where the cover plate 10 is located, wherein the second region 102 is a region of the cover plate 10 corresponding to the through hole 201. In the thickness direction of the display panel 20, the distance between the plane where the side of the first protrusion 11 close to the backlight unit 40 is located and the first surface 10a is h1, the distance between the plane where the side of the second protrusion 12 close to the backlight unit 40 is located and the first surface 10a is h2, and h1 is ≧ h 2.
In fig. 7, only h1 > h2 will be described as an example. In addition, the second area 102 is an area of the cover plate 10 facing the through hole 201, and when the photosensitive device 50 (taking a camera as an example) performs shooting, required shooting object light enters the first photosensitive assembly 51 through the second area 102, so that the camera can collect influence information. The second convex part 12 abuts against the first convex part 11 in the orthographic projection of the plane of the cover plate 10, namely the second convex part 12 contacts with the first convex part 11; the first convex part 11 is arranged around the first photosensitive assembly 51 to form a ring structure, the second convex part 12 fills the inside of the ring structure formed by the first convex part 11, and the edges of the two convex parts are contacted.
Specifically, by disposing the second protrusion 12 on the side of the cover plate 10 facing the backlight unit 40 in the second region 102, the thickness and strength of the cover plate 10 corresponding to the through hole 201 region can be increased, so that the display device can bear a stronger force in the camera disposing region, thereby providing a better user experience.
In some alternative embodiments, as shown in fig. 8 and 9, fig. 8 is a further cross-sectional view along direction AA' in fig. 1, and fig. 9 is a cross-sectional view of the cover plate in fig. 8. The foregoing reference numerals are used in fig. 8 and 9, and the description of the same parts will not be repeated. As shown in fig. 8 and 9, a distance h1 between a plane on which a side of the first protrusion 11 close to the backlight unit 40 is located and the first surface 10a is equal to a distance h2 between a plane on which a side of the second protrusion 12 close to the backlight unit 40 is located and the first surface 10 a.
Specifically, in practical applications, the heights of the first protrusion 11 and the second protrusion 12 may be set to be equal, that is, the side of the first protrusion 11 close to the backlight unit 40 is flush with the side of the second protrusion 12 close to the backlight unit 40, according to the process requirements and practical requirements. According to the technical scheme in the embodiment, the thickness and the strength of the area, corresponding to the through hole 201, of the cover plate 10 can be further increased, so that the display device can bear the force with higher strength in the camera setting area, and better use experience is provided for a user. Meanwhile, h1 is h2, so that the method is easier to realize in process production, and is helpful for reducing process difficulty and improving yield. The specific sizes of h1 and h2 are not limited in this respect, and can be set according to the actual needs.
In some alternative embodiments, as shown in fig. 10, fig. 10 is a cross-sectional view of another cover plate of a display device provided by the present invention. The cross section of the first protrusion 11 in the cross section perpendicular to the display device and passing through the through hole 201 may be stepped or trapezoidal, and the specific shape may be set according to actual needs, which is not limited in the present invention.
The light-shielding material 70 of the present invention is at least one of a light-shielding tape, ink, foam, and a black matrix. That is, the light-shielding materials 701, 702, 703, and 704 may be the same material, or may be different materials such as a light-shielding tape, ink, foam, and a black matrix, as long as the light-shielding effect can be achieved.
According to the embodiment, the display device of the invention has the following beneficial effects: the display panel is provided with the through hole, the first non-display area surrounds the through hole, the display area surrounds the first non-display area, and the second non-display area surrounds the display area; the cover plate does not dig holes at the position corresponding to the through hole, and meanwhile, the surface of one side, close to the through hole, of the upper polaroid is provided with a shading material. Due to the arrangement of the through holes, partial components of the photosensitive devices such as the camera can be arranged in the display panel, the overall thickness of the display device is reduced, meanwhile, the photosensitive devices such as the camera are closer to the cover plate, the visual range of the photosensitive devices such as the camera can be enlarged, and the available external light rays can be increased; the surface of the polarizer close to one side of the through hole is provided with the shading material, so that the problem of bright lines around the through hole during display can be solved; meanwhile, light rays of the backlight source can be prevented from entering the through hole, so that the shooting effect of photosensitive devices such as a camera is improved.
The display panel and the display device provided by the embodiment of the invention are described in detail, and the principle and the embodiment of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person 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 (9)

1. A display device, comprising:
the cover plate and the display panel are oppositely arranged;
the display panel comprises a through hole penetrating through the display panel along the thickness direction of the display panel, a first non-display area, a display area and a second non-display area; the first non-display area surrounds the through hole, the display area surrounds the first non-display area, and the second non-display area surrounds the display area;
the through hole is covered by the orthographic projection of the cover plate on the plane of the display panel;
the display panel also comprises an upper polaroid, the upper polaroid is positioned on one side of the display panel close to the cover plate, and a shading material is arranged on the surface of one side of the upper polaroid close to the through hole;
the display device also comprises a backlight unit and a photosensitive device, wherein the backlight unit is arranged on one side of the display panel, which is far away from the cover plate;
the backlight unit comprises a backlight hole penetrating through the backlight unit along the thickness direction of the backlight unit, the through hole is at least partially overlapped with the orthographic projection of the backlight hole on a first surface, the first surface is a plane where one side of the cover plate, which is far away from the backlight unit, is located, and the photosensitive device is arranged in a channel formed by the backlight hole and the through hole;
in the first area, a first convex part is arranged on one side, facing the backlight unit, of the cover plate, and the orthographic projection of the first convex part on the first surface is a closed graph and surrounds the orthographic projection of the first photosensitive assembly on the first surface;
the first area is an area corresponding to the first non-display area on the cover plate, and the first photosensitive assembly is a part of the photosensitive device located in the channel;
in the second area, a second convex part is arranged on one side, facing the backlight unit, of the cover plate, and the second convex part is abutted with the orthographic projection of the first convex part on the plane of the cover plate;
the second area is an area of the cover plate corresponding to the through hole;
in the thickness direction of the display panel, the distance between the plane where the side of the first convex part close to the backlight unit is located and the first surface is h1, the distance between the plane where the side of the second convex part close to the backlight unit is located and the first surface is h2, and h1 is not less than h 2.
2. The display device according to claim 1, further comprising an optical adhesive layer between the cover plate and the display panel, wherein the light shielding material is disposed on a surface of the optical adhesive layer on a side close to the through hole.
3. The display device according to claim 2, wherein in the first non-display area, a first ink area is disposed on a side of the cover plate close to the optical adhesive layer, and an orthographic projection of the first ink area on a plane of the optical adhesive layer is a closed figure and surrounds an orthographic projection of the through hole on the plane of the optical adhesive layer.
4. The display device according to claim 1, wherein the display panel further comprises a color filter substrate and an array substrate which are arranged opposite to each other, the color filter substrate is located on one side of the upper polarizer, which is away from the cover plate, and the array substrate is located on one side of the color filter substrate, which is away from the cover plate; in the first non-display area, frame glue is arranged between the color film substrate and the array substrate, and the orthographic projection of the frame glue on the plane of the array substrate is a closed graph and surrounds the orthographic projection of the through hole on the plane of the array substrate.
5. The display device according to claim 4, wherein the light-shielding material is provided on a surface of at least one of the color film substrate, the array substrate, and the sealant on a side close to the through hole.
6. The display device according to claim 4, wherein in the first non-display area, a first black matrix is disposed on a side of the color filter substrate close to the upper polarizer, and an orthographic projection of the first black matrix on a plane of the color filter substrate is a closed figure and surrounds an orthographic projection of the through hole on the plane of the color filter substrate.
7. The display device according to claim 4, wherein in the first non-display area, a second black matrix is disposed on a side of the color filter substrate away from the upper polarizer, and an orthographic projection of the second black matrix on a plane of the color filter substrate is a closed figure and surrounds an orthographic projection of the through hole on the plane of the color filter substrate.
8. The display device according to claim 1, wherein a surface of the first convex portion on a side facing away from the first photosensitive member is provided with the light shielding material.
9. The display device according to claim 1, wherein the light-shielding material is at least one of a light-shielding tape, ink, foam, and a black matrix.
CN201810845459.XA 2018-07-27 2018-07-27 Display device Active CN108681131B (en)

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