CN111933043A - Display device - Google Patents

Display device Download PDF

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Publication number
CN111933043A
CN111933043A CN202010837695.4A CN202010837695A CN111933043A CN 111933043 A CN111933043 A CN 111933043A CN 202010837695 A CN202010837695 A CN 202010837695A CN 111933043 A CN111933043 A CN 111933043A
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CN
China
Prior art keywords
layer
display panel
substrate
far away
display device
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Granted
Application number
CN202010837695.4A
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Chinese (zh)
Other versions
CN111933043B (en
Inventor
荆传贺
黄建明
吴洪江
潘湾萍
余海龙
林雅宾
苏学臻
贾小波
朱爱华
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BOE Technology Group Co Ltd
Fuzhou BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Fuzhou BOE Optoelectronics Technology Co Ltd
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Priority to CN202010837695.4A priority Critical patent/CN111933043B/en
Publication of CN111933043A publication Critical patent/CN111933043A/en
Application granted granted Critical
Publication of CN111933043B publication Critical patent/CN111933043B/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • 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
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • 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
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells

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

Abstract

The display device provided by the embodiment of the invention comprises: a first display panel and a second display panel; the first display panel is arranged on the second display panel; and a grating layer is arranged between the first display panel and the second display panel to block the light rays emitted from the first display panel, wherein the emergent angle of the light rays is larger than a preset angle. According to the display device provided by the embodiment of the invention, the grating layer is arranged between the first display substrate and the second display substrate, so that the problem of double images of the display device with a double-layer display panel during display can be avoided, the problem of halation caused by the existing double image removing mode is also avoided, and the display quality of the display device is improved.

Description

Display device
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
Referring to fig. 1, a dual-layer display device is a two-layer display panel bonding structure, and generally, since a gap layer of 1mm to 1.3mm exists between a main display panel (main cell) and a sub display panel (sub cell), there is a problem that a pixel a of the main display panel and a pixel B of the sub display panel do not overlap at a certain viewing angle O, and thus a ghost image is generated.
In order to solve the problem of the double image, a current common mode is to perform blurring processing around a pixel point of the sub-display panel through a local dimming algorithm to make a white picture display range of the sub-display panel larger than an image display range of the main display panel.
Disclosure of Invention
The invention provides a display device, which aims to solve the problem that the existing double-layer display device cannot solve double images and halos.
The present invention provides a display device including: a first display panel and a second display panel; the first display panel is arranged on the second display panel;
and a grating layer is arranged between the first display panel and the second display panel to block the light rays emitted from the first display panel, wherein the emergent angle of the light rays is larger than a preset angle.
Optionally, the grating layer includes: a first peep-proof film and a second peep-proof film which are arranged in a stacked manner; the grating direction of the first peep-proof film is vertical to the grating direction of the second peep-proof film.
Optionally, the first display panel includes:
the first substrate is arranged on one surface, deviating from the second display panel, of the grating layer;
the resin layer is arranged on one surface, far away from the grating layer, of the first substrate.
Optionally, the first display panel further comprises:
the electrode layer is arranged on one surface, far away from the first substrate, of the resin layer;
the first liquid crystal layer is arranged on one surface, far away from the resin layer, of the electrode layer;
the color film layer is arranged on one surface, far away from the electrode layer, of the first liquid crystal layer;
the black matrix layer is arranged between the color film layers and is arranged on the same layer as the color film layers;
the array layer is arranged on one surface, far away from the first liquid crystal layer, of the color film layer.
Optionally, the first display panel further comprises:
the array layer is arranged on one surface, far away from the first substrate, of the resin layer;
the first liquid crystal layer is arranged on one side, far away from the resin layer, of the array layer;
the color film layer is arranged on one side, far away from the first liquid crystal layer, of the array layer;
the black matrix layer is arranged between the color film layers and arranged on the same layer with the color film layers.
Optionally, a surface of the first substrate facing the resin layer is uneven.
Optionally, the resin layer comprises a plurality of irregularly arranged microparticles.
Optionally, the first display panel further comprises: a planarization layer; the flat layer is arranged on one surface of the color film layer, which is far away from the first liquid crystal layer;
the flat layer is doped with a plurality of irregularly arranged micro-particles.
Optionally, the color film layer or the array layer is doped with a plurality of irregularly arranged microparticles.
Optionally, the second display panel further comprises:
a second substrate;
a second liquid crystal layer disposed on the second substrate;
the third substrate is arranged on one surface, far away from the second substrate, of the second liquid crystal layer;
the first polaroid is arranged on one surface, far away from the second liquid crystal layer, of the third substrate; the grating layer is arranged on one surface, far away from the third substrate, of the first polarizer.
An embodiment of the present invention provides a display device, including: a first display panel and a second display panel; the first display panel is arranged on the second display panel; and a grating layer is arranged between the first display panel and the second display panel. According to the display device provided by the embodiment of the invention, the grating layer is arranged between the first display substrate and the second display substrate, so that the problem of double images of the double-layer display device during display can be avoided, the problem of halation caused by the existing double image removing mode is also avoided, and the display quality of the display device is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic diagram of a prior art display panel;
fig. 2 is a schematic structural diagram of a first display panel according to an embodiment of the present invention;
fig. 3 is a schematic top view of a grating layer according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second display panel according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a third display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a fourth display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a fifth display panel according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a sixth display panel according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2, an embodiment of the present invention provides a display device, including: a first display panel 10 and a second display panel 20; the first display panel 10 is disposed on the second display panel 20;
a grating layer 30 is disposed between the first display panel 10 and the second display panel 20 to block light emitted from the first display panel 10 with an exit angle larger than a preset angle.
In the embodiment of the present invention, referring to fig. 2, the grating layer 30 blocks the large-angle light emitted from the first display panel 10, so that a client can watch the display panel at any angle without generating a double image.
Wherein, the preset angle is 30 degrees, and the preset angle can be specifically set according to actual needs.
In the embodiment of the present invention, the widths of the blocking structures and the light transmission holes in the grating layer 30 may be set according to actual needs, and are not limited herein.
In the embodiment of the present invention, referring to fig. 3, which is a top view of a grating layer, the grating layer 30 includes: a first privacy film 31 and a second privacy film 32 which are arranged in a stacked manner; the grating direction of the first peep-proof film 31 is perpendicular to the grating direction of the second peep-proof film 32.
The first peep-proof film can be arranged on the second peep-proof film, and the second peep-proof film can also be arranged on the first peep-proof film.
In the embodiment of the present invention, since the grating direction of the first peep-proof film 31 is perpendicular to the grating direction of the second peep-proof film 32, the viewing angle blocking directions of the first peep-proof film and the second peep-proof film to light are perpendicular, and large viewing angle light in each direction can be blocked.
Referring to fig. 2, the grating layer 30 is disposed between the first display panel 10 and the second display panel 20, so that light passing through the grating layer 30 with a large viewing angle can be blocked, pixels corresponding to the first display panel and the second display panel can be in one-to-one correspondence, and light reaching the viewing angle O is light corresponding to the pixels, thereby avoiding occurrence of double images.
In the embodiment of the present invention, the light passing through the second display panel 20 is not scattered, i.e. the light intensity in each direction is uniform, the grating layer can limit the light with a large viewing angle (greater than 30 °), and the light emitted by the second display panel which is not overlapped cannot be seen at the large viewing angle O.
In an embodiment of the present invention, referring to fig. 2, 4 to 6, the first display panel 10 includes:
the first substrate 11 is arranged on one side, away from the second display panel 20, of the grating layer 30;
and the resin layer 12 is arranged on one surface of the first substrate 11 far away from the grating layer 30.
In the embodiment of the present invention, the first substrate 11 is made of a glass material, and the resin layer 12 is a transparent structure.
In the embodiment of the present invention, referring to fig. 2, the first display panel 10 further includes:
an electrode layer 13, wherein the electrode layer 13 is arranged on one surface of the resin layer 12 far away from the first substrate 11;
a first liquid crystal layer 14, wherein the first liquid crystal layer 14 is arranged on one side of the electrode layer 13 far away from the resin layer 12;
the color film layer 15 is arranged on one side, far away from the electrode layer 13, of the first liquid crystal layer 14;
the black matrix layer 16 is arranged between the color film layers 15, and is arranged on the same layer with the color film layers 15;
the array layer 17, the array layer 17 is disposed on a side of the color film layer 15 away from the first liquid crystal layer 14.
In the embodiment of the present invention, referring to fig. 2, the first display panel 10 further includes an upper substrate 19 and an upper polarizer 20.
In the embodiment of the present invention, the first display panel 10 is obtained by flip-chip mounting a Color On Array (COA) layer, wherein the preparation method includes fabricating an array layer 17 on an upper substrate 19, and etching and laminating a color film layer 15 and a black matrix layer 16 on the array layer 17.
Wherein, COA adopts vertical electric field drive, therefore laminate and etch the electrode layer 13 on the resin layer 12, wherein, the material of the electrode layer 13 includes: ITO (indium tin oxide) or AZO (aluminum-doped zinc oxide transparent conductive glass), wherein the ITO or AZO can reduce the etching temperature of the electrode layer and improve the mass production of the display device.
In the embodiment of the present invention, referring to fig. 4, a schematic structural diagram of another first display panel is shown, where the first display panel 10 further includes:
an array layer 17, wherein the array layer 17 is arranged on one side of the resin layer 12 far away from the first substrate 11;
a first liquid crystal layer 14, wherein the first liquid crystal layer 14 is arranged on one side of the array layer 17 far away from the resin layer 12;
the color film layer 15 is arranged on one side of the array layer 17 far away from the first liquid crystal layer 14;
and the black matrix layer 16 is arranged between the color film layers 15 and is arranged in the same layer with the color film layers 15.
In the embodiment of the present invention, referring to fig. 5, a surface of the first substrate 11 facing the resin layer 12 is uneven.
In the embodiment of the present invention, referring to fig. 6, the resin layer 12 includes a plurality of irregularly arranged fine particles W.
In the embodiment of the present invention, the resin layer may be obtained by doping fine particles into the resin material and then coating the resin material on the first substrate.
In an embodiment of the present invention, referring to fig. 7, the first display panel further includes: a planarization layer 18; the flat layer 18 is arranged on the side of the color film layer 15 away from the first liquid crystal layer 14;
the flat layer 18 is doped with a plurality of irregularly arranged micro-particles W.
In the embodiment of the present invention, referring to fig. 7 and 8, the color film layer 15 or the array layer 17 is doped with a plurality of irregularly arranged micro-particles W.
In the embodiment of the present invention, referring to fig. 8, the array layer 17 includes a PI layer (polyimide film) 171 and an array structure 172, wherein the fine particles W are doped in the PI layer.
In the embodiment of the present invention, after the light passes through the grating layer 30, the viewing angle of the light is reduced, but the viewing angle of the light in the tv display screen has a certain requirement, and the light with the reduced viewing angle needs to be expanded. In the embodiment of the present invention, the uneven microstructure may be further prepared on the first substrate 11 to achieve the purpose of expanding the viewing angle.
Wherein the size of the micro-particles comprises: 1-5 μm, the microparticle is made of acrylic material. In the embodiment of the present invention, the micro-particles may also be selected from other transparent materials, which are not limited herein.
Wherein, the volume concentration of the micro-particles in the resin layer or the flat layer or the color film layer or the PI layer is more than 50%.
In the embodiment of the present invention, the rugged microstructure on the first substrate 11 may be formed according to etching, and after etching, a resin layer is formed on the surface of the rugged structure by atomization and coating.
In the embodiment of the present invention, the second display panel 20 further includes:
a second substrate 21;
a second liquid crystal layer 22, the second liquid crystal layer 22 being disposed on the second substrate 21;
a third substrate 23, wherein the third substrate 23 is disposed on a side of the second liquid crystal layer 22 away from the second substrate 21;
the first polarizer 24 is arranged on one side, away from the second liquid crystal layer 22, of the third substrate 23; the grating layer 30 is disposed on a surface of the first polarizer 24 away from the third substrate 23.
In an embodiment of the present invention, the second display panel further includes: the second array layer, the second color film layer and the second black matrix layer; the second display panel has the same or similar structure as the first display panel, and is not described herein again.
An embodiment of the present invention provides a display device, including: a first display panel and a second display panel; the first display panel is arranged on the second display panel; and a grating layer is arranged between the first display panel and the second display panel. According to the display device provided by the embodiment of the invention, the grating layer is arranged between the first display substrate and the second display substrate, so that the problem of double images of the double-layer display device during display can be avoided, the problem of halation caused by the existing double image removing mode is also avoided, and the display quality of the display device is improved.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A display device, comprising: a first display panel and a second display panel; the first display panel is arranged on the second display panel;
and a grating layer is arranged between the first display panel and the second display panel to block the light rays emitted from the first display panel, wherein the emergent angle of the light rays is larger than a preset angle.
2. The display device of claim 1, wherein the grating layer comprises: a first peep-proof film and a second peep-proof film which are arranged in a stacked manner; the grating direction of the first peep-proof film is vertical to the grating direction of the second peep-proof film.
3. The display device according to claim 1, wherein the first display panel comprises:
the first substrate is arranged on one surface, deviating from the second display panel, of the grating layer;
the resin layer is arranged on one surface, far away from the grating layer, of the first substrate.
4. The display device according to claim 3, wherein the first display panel further comprises:
the electrode layer is arranged on one surface, far away from the first substrate, of the resin layer;
the first liquid crystal layer is arranged on one surface, far away from the resin layer, of the electrode layer;
the color film layer is arranged on one surface, far away from the electrode layer, of the first liquid crystal layer;
the black matrix layer is arranged between the color film layers and is arranged on the same layer as the color film layers;
the array layer is arranged on one surface, far away from the first liquid crystal layer, of the color film layer.
5. The display device according to claim 3, wherein the first display panel further comprises:
the array layer is arranged on one surface, far away from the first substrate, of the resin layer;
the first liquid crystal layer is arranged on one side, far away from the resin layer, of the array layer;
the color film layer is arranged on one side, far away from the first liquid crystal layer, of the array layer;
the black matrix layer is arranged between the color film layers and arranged on the same layer with the color film layers.
6. The display device according to any one of claims 3 to 5, wherein a surface of the first substrate facing the resin layer is uneven.
7. The display device according to any one of claims 3 to 5, wherein the resin layer contains a plurality of irregularly arranged fine particles.
8. The display device according to claim 4 or 5, wherein the first display panel further comprises: a planarization layer; the flat layer is arranged on one surface of the color film layer, which is far away from the first liquid crystal layer;
the flat layer is doped with a plurality of irregularly arranged micro-particles.
9. The display device according to claim 4 or 5, wherein the color film layer or the array layer is doped with a plurality of irregularly arranged particles.
10. The display device according to claim 1, wherein the second display panel further comprises:
a second substrate;
a second liquid crystal layer disposed on the second substrate;
the third substrate is arranged on one surface, far away from the second substrate, of the second liquid crystal layer;
the first polaroid is arranged on one surface, far away from the second liquid crystal layer, of the third substrate; the grating layer is arranged on one surface, far away from the third substrate, of the first polarizer.
CN202010837695.4A 2020-08-19 2020-08-19 Display device Active CN111933043B (en)

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Cited By (2)

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CN112764259A (en) * 2021-01-05 2021-05-07 惠州市华星光电技术有限公司 Display panel and preparation method thereof
CN114596822A (en) * 2020-12-04 2022-06-07 福州京东方光电科技有限公司 Display method, display optimization device, electronic device, and storage medium

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Publication number Priority date Publication date Assignee Title
CN114596822A (en) * 2020-12-04 2022-06-07 福州京东方光电科技有限公司 Display method, display optimization device, electronic device, and storage medium
CN114596822B (en) * 2020-12-04 2024-01-19 福州京东方光电科技有限公司 Display method, display optimization device, electronic equipment and storage medium
CN112764259A (en) * 2021-01-05 2021-05-07 惠州市华星光电技术有限公司 Display panel and preparation method thereof

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