CN110673381A - Double-layer liquid crystal display panel and preparation method thereof - Google Patents
Double-layer liquid crystal display panel and preparation method thereof Download PDFInfo
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- CN110673381A CN110673381A CN201910863982.XA CN201910863982A CN110673381A CN 110673381 A CN110673381 A CN 110673381A CN 201910863982 A CN201910863982 A CN 201910863982A CN 110673381 A CN110673381 A CN 110673381A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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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
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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
- G02F1/1347—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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Abstract
The invention discloses a double-layer liquid crystal display panel and a preparation method thereof, wherein the double-layer liquid crystal display panel comprises a first display structure and a second display structure, and the first display structure is arranged below the second display structure; the first display structure comprises a first upper substrate and a first lower substrate which are oppositely arranged; one surface of the first upper substrate, which is far away from the first lower substrate, is attached below the second display structure; the shading grating is arranged on one surface of the first upper substrate facing the first lower substrate; the first liquid crystal layer is arranged between the first upper substrate and the first lower substrate; the first liquid crystal layer is filled with polymer liquid crystal. According to the double-layer liquid crystal display panel and the preparation method thereof, the shading grating is added, and the shading grating is used for blocking large-angle light in a scattering state by utilizing different light emitting angles of a scattering state and a transmission state of polymer liquid crystal in a lower layer liquid crystal display structure.
Description
Technical Field
The invention relates to the technical field of display, in particular to a double-layer liquid crystal display panel and a preparation method thereof.
Background
With the rise of High Dynamic Range (HDR) technology in recent years, backlight partitioning (BLU Dimming) technology is increasingly adopted. In the structure of the double-layer liquid crystal display panel, the upper layer liquid crystal display structure normally displays, and the lower layer liquid crystal display structure controls the backlight in a partitioning manner, so that the contrast ratio is obviously improved. The liquid crystal of the lower liquid crystal display structure of the double-layer liquid crystal display panel adopts polymer liquid crystal, and the partition control of backlight is realized by controlling the transmission and scattering states of the polymer liquid crystal, so that the cost of the polaroid can be saved, and the penetration rate of the lower liquid crystal display structure can be improved. However, the polymer liquid crystal in the lower liquid crystal display structure is used for controlling the backlight in a partitioning mode, so that the reduction of the dark state brightness is less, and the improvement of the contrast ratio is limited.
Disclosure of Invention
In order to solve the technical problems: the invention provides a double-layer liquid crystal display panel and a preparation method thereof.A shading grating is added on a first upper substrate of a first display structure, namely a lower-layer liquid crystal display structure, and the shading grating plays a role in blocking large-angle light in a scattering state by utilizing different light emitting angles of a scattering state and a transparent state of polymer liquid crystal in the lower-layer liquid crystal display structure so as to realize the partition control of the lower-layer liquid crystal display structure on backlight.
The technical scheme for solving the problems is as follows: the invention provides a double-layer liquid crystal display panel, which comprises a first display structure and a second display structure, wherein the first display structure is arranged below the second display structure; the first display structure comprises a first upper substrate and a first lower substrate which are oppositely arranged, and one surface of the first upper substrate, which is far away from the first lower substrate, is attached below the second display structure; the shading grating is arranged on one surface of the first upper substrate facing the first lower substrate; and a first liquid crystal layer disposed between the first upper substrate and the first lower substrate; and polymer liquid crystal is filled in the first liquid crystal layer.
In an embodiment of the invention, the light-shielding grating is a black metal grating.
In an embodiment of the invention, the light-shielding grating includes a plurality of first light-shielding bars, which are arranged in parallel.
In an embodiment of the invention, the light-shielding grating further includes a plurality of second light-shielding bars, which are arranged in parallel with each other, and the second light-shielding bars are perpendicular to the first light-shielding bars, and the second light-shielding bars and the first light-shielding bars form a grid structure.
In an embodiment of the invention, the width between two adjacent first light-shielding strips is 80nm-160nm, and the thickness of the first light-shielding strips is 150nm-500 nm; the width between two adjacent second shading strips is 80nm-160nm, and the thickness of the second shading strips is 150nm-500 nm.
In one embodiment of the present invention, the first lower substrate includes a first lower glass plate; the thin film transistor structure is arranged on one surface, facing the first liquid crystal layer, of the first lower glass substrate; the transparent electrode layer is arranged on one surface, facing the first liquid crystal layer, of the thin film transistor structure; the transparent electrode layer is provided with a pixel electrode and a common electrode, and the pixel electrode is connected with the thin film transistor structure; the first display structure further comprises a first driving chip arranged on the first lower glass substrate, and the transparent electrode is connected to the first driving chip.
In an embodiment of the invention, the dual-layer lcd panel further includes a backlight module disposed on a surface of the first lower substrate away from the first upper substrate.
In an embodiment of the invention, the second display structure includes a lower polarizer attached to a surface of the first upper substrate away from the first lower substrate; a second lower substrate; the lower polarizer is arranged on one surface, far away from the first upper substrate; a second upper substrate; the second polarizer is arranged on one surface of the second lower substrate, which is far away from the lower polarizer, and is opposite to the second substrate; the second liquid crystal layer is arranged between the second upper substrate and the second lower substrate; the upper polaroid is arranged on one surface of the second upper substrate, which is far away from the second lower substrate; and the second driving chip is arranged on the second lower substrate.
The invention also provides a preparation method for preparing the double-layer liquid crystal display panel, which comprises the following steps of preparing a first display structure, including preparing the first lower substrate; providing the first upper substrate, and forming a shading grating on one surface of the first upper substrate; assembling the first upper substrate and the first lower substrate, wherein one surface of the first upper substrate, which is provided with the shading grating, faces the first lower substrate; injecting polymer liquid crystal between the first upper substrate and the first lower substrate to form a first liquid crystal layer; and preparing the second display structure, and mutually attaching the second display structure and the first display structure to form the double-layer liquid crystal display panel.
In an embodiment of the present invention, in the step of forming the light-shielding grating, a light-shielding film is formed on one surface of the first upper substrate; carrying out nanoimprint on the shading film to form a structure with alternate strip-shaped bulges and strip-shaped grooves; and etching and removing the shading film in the strip-shaped groove, and only keeping the shading film at the strip-shaped protrusion part to form a plurality of grid-shaped shading strips.
The invention has the beneficial effects that: according to the double-layer liquid crystal display panel, the shading grating is additionally arranged on the first upper substrate of the first display structure, namely the lower layer liquid crystal display structure, and the shading grating is used for blocking large-angle light in a scattering state by utilizing different light emitting angles of a scattering state and a transparent state of polymer liquid crystal in the lower layer liquid crystal display structure so as to realize the partition control of the lower layer liquid crystal display structure on backlight; the smaller the distance between the shading strips of the shading grating is, the thicker the thickness of the shading strips is, the obvious effect of the shading grating on blocking large-angle scattered light is achieved, the lower the brightness of the lower-layer liquid crystal display structure is in a scattering state, the better the backlight partition control effect is, the shading grating can effectively block light which is emitted by the lower-layer liquid crystal display structure and has an incident angle of 0-80.9 degrees from penetrating when the lower-layer liquid crystal display structure is in the scattering state, when the light is perpendicular to the first upper substrate, the incident angle of the light and the substrate is 90 degrees, and at the moment, the light can basically.
Drawings
The invention is further explained below with reference to the figures and examples.
Fig. 1 is a structural view of a two-layer liquid crystal display panel according to an embodiment of the present invention.
Fig. 2 is a structure diagram of a light-shielding grating in embodiment 1 of the present invention.
Fig. 3 is a structure diagram of a shading grating in embodiment 2 of the present invention.
Reference numerals:
1 a double-layer liquid crystal display panel; 2 a first display structure;
3 a second display structure; 4, a backlight module;
5OCA glue; 21 a first upper substrate;
22 a first lower substrate; 23 a first liquid crystal layer;
24 light-shielding grating; 25 a first driver chip;
221 a first lower glass plate; 222 a thin film transistor structure;
223 a transparent electrode layer; 2221 a gate layer;
2222 a gate insulating layer; 2223 an active layer;
2224 a source electrode; 2225 a drain electrode;
2226 a protective layer; 241 a first shade bar;
242 a second shade bar; 31, a polaroid;
32 a second lower substrate; 33 a second liquid crystal layer;
34 a second upper substrate; 35 an upper polarizer;
36 second driver chip.
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
Example 1
As shown in fig. 1, the dual-layer lcd panel 1 of the present invention includes a first display structure 2, a second display structure 3 and a backlight module 4.
The first display structure 2 is arranged below the second display structure 3; the first display structure 2 includes first upper and lower substrates 21 and 22, a first liquid crystal layer 23, a light-shielding grating 24, and a first driving chip 25. The first upper substrate 21 and the first lower substrate 22 are disposed opposite to each other, and one surface of the first upper substrate 21, which is far away from the first lower substrate 22, is attached below the second display structure 3 through an optical adhesive, in this embodiment, the first upper substrate 21 is a glass substrate. The first liquid crystal layer 23 is disposed between the first upper substrate 21 and the first lower substrate 22; the first liquid crystal layer 23 is filled with polymer liquid crystal. The light-shielding grating 24 is provided on a surface of the first upper substrate 21 facing the first lower substrate 22.
As shown in fig. 2, the light-shielding grating 24 is a ferrous metal grating. The light-shielding grating 24 includes a plurality of first light-shielding bars 241, and the first light-shielding bars 241 are arranged in parallel. The width between two adjacent first light-shielding bars 241 is 80nm-160nm, and the thickness of each first light-shielding bar 241 is 150nm-500 nm.
The first lower substrate 22 includes a first lower glass plate 221, a thin film transistor structure 222, and a transparent electrode layer. The thin film transistor structure 222 is disposed on a surface of the first lower glass substrate facing the first liquid crystal layer 23; the transparent electrode layer 223 is disposed on a surface of the thin film transistor structure 222 facing the first liquid crystal layer 23; the transparent electrode layer 223 has a pixel electrode and a common electrode, and the pixel electrode is connected to the thin film transistor structure 222.
The first driving chip 25 is disposed on the first lower glass substrate, and the transparent electrode is connected to the first driving chip 25.
The second display structure 3 includes a lower polarizer 31, a second lower substrate 32, a second liquid crystal layer 33, a second upper substrate 34, an upper polarizer 35, and a second driving chip 36. The lower polarizer 31 is attached to a surface of the first upper substrate 21 away from the first lower substrate 22; the second lower substrate 32 is disposed on a surface of the lower polarizer 31 away from the first upper substrate 21, and the second lower substrate 32 is an array substrate; the second upper substrate 34 is arranged on one surface of the second lower substrate 32 away from the lower polarizer 31, and is arranged opposite to the second substrate, and the second upper substrate 34 is a color film substrate; the second liquid crystal layer 33 is disposed between the second upper substrate 34 and the second lower substrate 32; the upper polarizer 35 is disposed on a surface of the second upper substrate 34 away from the second lower substrate 32; the second driving chip 36 is disposed on the second lower substrate 32.
The backlight module 4 is disposed on a surface of the first lower substrate 22 away from the first upper substrate 21.
In this embodiment, the main design point is the light-shielding grating 24, and for example, the first driving chip 25, the transparent electrode and the circuit structure thereof, the second driving chip 36, the second lower substrate 32 and the circuit structure thereof are not repeated.
The embodiment also provides a preparation method for preparing the double-layer liquid crystal display panel 1, which comprises the following steps.
Preparing a first display structure 2, including preparing the first lower substrate 22; the first lower substrate 22 may be prepared by the following process: providing a first lower glass plate 221; a thin film transistor structure 222 is formed on the first lower glass plate 221, and a transparent electrode layer 223 is formed on the thin film transistor structure 222. Each of the layers in the tft structure 222 is prepared by a conventional method, such as by a film forming process, an exposure process, a developing process, and an etching process. For example, in the fabrication of the gate layer 2221, a gate material is deposited on the first lower glass plate 221, and then patterning processes such as exposure and development are performed to form the gate layer 2221, and then the gate insulating layer 2222 is formed on the gate layer 2221. An active layer 2223, a source 2224, and a drain are formed on the gate insulating layer 2222. In the fabrication of the source 2224 and the drain 2225, a conductive material layer, such as a metal material, is deposited, and then wet etching is performed on the conductive material layer to form the source 2224 and the drain 2225. Then, the transparent electrode layer 223 is formed, and the transparent electrode layer 223 is exposed and developed or etched to form a pixel electrode and a common electrode.
The first upper substrate 21 is provided, and a light-shielding grating 24 is formed on one surface of the first upper substrate 21. In the step of forming the light-shielding grating 24, a light-shielding thin film is formed on one surface of the first upper substrate 21; carrying out nano-imprinting, such as transverse imprinting or longitudinal imprinting, on the shading film to form a structure with alternating strip-shaped bulges and strip-shaped grooves; and etching and removing the shading film in the strip-shaped groove, and only keeping the shading film at the strip-shaped protrusion part to form a plurality of grid-shaped shading strips. The formed light-shielding bars are first light-shielding bars 241, and the first light-shielding bars 241 are arranged in parallel. The width between two adjacent first light-shielding bars 241 is 80nm-160nm, and the thickness of each first light-shielding bar 241 is 150nm-500 nm.
Assembling the first upper substrate 21 and the first lower substrate 22, wherein the surface of the first upper substrate 21 having the light-shielding grating 24 faces the first lower substrate 22; a first liquid crystal layer 23 is formed by injecting polymer liquid crystal between the first upper substrate 21 and the first lower substrate 22.
The second display structure 3 is prepared, and a manufacturing process of the second display structure 3 adopts a common FFS-LCD process, which is not described again. And then mutually attaching the second display structure 3 and the first display structure 2 through OCA glue 5 to form the double-layer liquid crystal display panel 1.
Example 2
As shown in fig. 3 and also referring to fig. 2, the difference between the present embodiment 2 and the present embodiment 1 is that in the present embodiment, the light-shielding grating 24 further includes a plurality of second light-shielding bars 242, the second light-shielding bars 242 are arranged in parallel, the second light-shielding bars 242 are perpendicular to the first light-shielding bars 241, and the second light-shielding bars 242 and the first light-shielding bars 241 form a grid structure. The width between two adjacent second shading strips 242 is 80nm-160nm, and the thickness of the second shading strips 242 is 150nm-500 nm.
The embodiment also provides a preparation method for preparing the double-layer liquid crystal display panel 1, which comprises the following steps.
Preparing a first display structure 2, including preparing the first lower substrate 22; the first lower substrate 22 may be prepared by the following process: providing a first lower glass plate 221; a thin film transistor structure 222 is formed on the first lower glass plate 221, and a transparent electrode layer 223 is formed on the thin film transistor structure 222. Each of the layers in the tft structure 222 is prepared by a conventional method, such as by a film forming process, an exposure process, a developing process, and an etching process. For example, in the fabrication of the gate layer 2221, a gate material is deposited on the first lower glass plate 221, and then patterning processes such as exposure and development are performed to form the gate layer 2221, and then the gate insulating layer 2222 is formed on the gate layer 2221. An active layer 2223, a source 2224 and a drain 2225 are formed on the gate insulating layer 2222. In the fabrication of the source 2224 and the drain 2225, a conductive material layer, such as a metal material, is deposited, and then wet etching is performed on the conductive material layer to form the source 2224 and the drain 2225. Then, the protective layer 2226 and the transparent electrode layer 223 are formed, and the pixel electrode and the common electrode are formed by exposing and developing or etching the transparent electrode layer 223.
The first upper substrate 21 is provided, and a light-shielding grating 24 is formed on one surface of the first upper substrate 21. In the step of forming the light-shielding grating 24, a light-shielding thin film is formed on one surface of the first upper substrate 21; carrying out nano-imprinting, such as transverse imprinting and longitudinal imprinting, on the shading film to form a structure with alternating strip-shaped bulges and strip-shaped grooves; and etching and removing the shading film in the strip-shaped groove, and only keeping the shading film at the strip-shaped protrusion part to form a plurality of grid-shaped shading strips. The light-shielding strips formed by longitudinal embossing are first light-shielding strips 241, and the first light-shielding strips 241 are arranged in parallel. The width between two adjacent first light-shielding bars 241 is 80nm-160nm, and the thickness of each first light-shielding bar 241 is 150nm-500 nm. The light-shielding bars formed by transverse imprinting are second light-shielding bars 242, and the second light-shielding bars 242 are arranged in parallel. The width between two adjacent second shading strips 242 is 80nm-160nm, and the thickness of the second shading strips 242 is 150nm-500 nm.
Assembling the first upper substrate 21 and the first lower substrate 22, wherein the surface of the first upper substrate 21 having the light-shielding grating 24 faces the first lower substrate 22; a first liquid crystal layer 23 is formed by injecting polymer liquid crystal between the first upper substrate 21 and the first lower substrate 22.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The double-layer liquid crystal display panel is characterized by comprising a first display structure and a second display structure, wherein the first display structure is arranged below the second display structure; the first display structure comprises a first upper substrate and a first lower substrate which are oppositely arranged, and one surface of the first upper substrate, which is far away from the first lower substrate, is attached below the second display structure;
the shading grating is arranged on one surface of the first upper substrate facing the first lower substrate; and
a first liquid crystal layer disposed between the first upper substrate and the first lower substrate; and polymer liquid crystal is filled in the first liquid crystal layer.
2. The bi-layer lcd panel of claim 1, wherein the light-blocking grating is a black metal grating.
3. The bi-layer lcd panel of claim 1, wherein the light-shielding grating comprises a plurality of first light-shielding bars disposed in parallel.
4. The dual-layer LCD panel of claim 3, wherein the light-shielding grating further comprises a plurality of second light-shielding bars disposed parallel to each other, and the second light-shielding bars are perpendicular to the first light-shielding bars, and the second light-shielding bars and the first light-shielding bars form a grid structure.
5. The bi-layer lcd panel of claim 3, wherein the width between two adjacent first light-shielding bars is 80nm-160nm, and the thickness of the first light-shielding bars is 150nm-500 nm; the width between two adjacent second shading strips is 80nm-160nm, and the thickness of the second shading strips is 150nm-500 nm.
6. The bi-layer liquid crystal display panel of claim 1, wherein the first lower substrate comprises
A first lower glass plate;
the thin film transistor structure is arranged on one surface, facing the first liquid crystal layer, of the first lower glass substrate;
the transparent electrode layer is arranged on one surface, facing the first liquid crystal layer, of the thin film transistor structure; the transparent electrode layer is provided with a pixel electrode and a common electrode, and the pixel electrode is connected with the thin film transistor structure;
the first display structure further comprises a first driving chip arranged on the first lower glass substrate, and the transparent electrode is connected to the first driving chip.
7. The bi-layer lcd panel of claim 1, further comprising a backlight module disposed on a surface of the first lower substrate away from the first upper substrate.
8. The bi-layer liquid crystal display panel of claim 1, wherein the second display structure comprises
The lower polarizer is attached to one surface, far away from the first lower substrate, of the first upper substrate;
a second lower substrate; the lower polarizer is arranged on one surface, far away from the first upper substrate;
a second upper substrate; the second polarizer is arranged on one surface of the second lower substrate, which is far away from the lower polarizer, and is opposite to the second substrate;
the second liquid crystal layer is arranged between the second upper substrate and the second lower substrate;
the upper polaroid is arranged on one surface of the second upper substrate, which is far away from the second lower substrate;
and the second driving chip is arranged on the second lower substrate.
9. A method for manufacturing a two-layer liquid crystal display panel according to any one of claims 1 to 8, comprising the steps of
Preparing a first display structure comprising
Preparing the first lower substrate;
providing the first upper substrate, and forming a shading grating on one surface of the first upper substrate;
assembling the first upper substrate and the first lower substrate, wherein one surface of the first upper substrate, which is provided with the shading grating, faces the first lower substrate;
injecting polymer liquid crystal between the first upper substrate and the first lower substrate to form a first liquid crystal layer; and preparing the second display structure, and mutually attaching the second display structure and the first display structure to form the double-layer liquid crystal display panel.
10. The method for preparing a light-shielding grating according to claim 9, wherein the step of forming the light-shielding grating includes
Forming a light-shielding film on one surface of the first upper substrate;
carrying out nanoimprint on the shading film to form a structure with alternate strip-shaped bulges and strip-shaped grooves;
and etching and removing the shading film in the strip-shaped groove, and only keeping the shading film at the strip-shaped protrusion part to form a plurality of grid-shaped shading strips.
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Cited By (3)
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| CN111933043A (en) * | 2020-08-19 | 2020-11-13 | 京东方科技集团股份有限公司 | Display device |
| CN113156694A (en) * | 2021-03-31 | 2021-07-23 | 武汉华星光电技术有限公司 | Dimming layer for display module and display module |
| US11988931B2 (en) | 2020-10-19 | 2024-05-21 | Hefei Boe Optoelectronics Technology Co., Ltd. | Display module and manufacturing method therefor, and display device |
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| CN103576356A (en) * | 2012-07-23 | 2014-02-12 | 天津富纳源创科技有限公司 | Production method for liquid crystal module having touch function |
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| CN103605237A (en) * | 2013-11-22 | 2014-02-26 | 京东方科技集团股份有限公司 | Display device |
| CN206096638U (en) * | 2016-10-24 | 2017-04-12 | 京东方科技集团股份有限公司 | Display panel and display device |
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| CN111933043A (en) * | 2020-08-19 | 2020-11-13 | 京东方科技集团股份有限公司 | Display device |
| US11988931B2 (en) | 2020-10-19 | 2024-05-21 | Hefei Boe Optoelectronics Technology Co., Ltd. | Display module and manufacturing method therefor, and display device |
| CN113156694A (en) * | 2021-03-31 | 2021-07-23 | 武汉华星光电技术有限公司 | Dimming layer for display module and display module |
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