CN111487817A - Liquid crystal display panel - Google Patents

Liquid crystal display panel Download PDF

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Publication number
CN111487817A
CN111487817A CN201910085278.6A CN201910085278A CN111487817A CN 111487817 A CN111487817 A CN 111487817A CN 201910085278 A CN201910085278 A CN 201910085278A CN 111487817 A CN111487817 A CN 111487817A
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China
Prior art keywords
layer
liquid crystal
color filter
alignment region
alignment
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Withdrawn
Application number
CN201910085278.6A
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Chinese (zh)
Inventor
郭丰玮
陈冠玮
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Hannstar Display Corp
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Hannstar Display Corp
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Publication date
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Priority to CN201910085278.6A priority Critical patent/CN111487817A/en
Publication of CN111487817A publication Critical patent/CN111487817A/en
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]

Abstract

The invention provides a liquid crystal display panel, which comprises an active device array substrate, an opposite substrate, sealing glue and a liquid crystal layer. The opposite substrate comprises a decoration layer and a color filter layer. The sealing compound is used for connecting the active device array substrate and the opposite substrate to form a closed space. The liquid crystal layer is located in the closed space, wherein the closed space is provided with a peripheral non-alignment area adjacent to the inner edge of the sealing glue. The liquid crystal layer, the color filter layer and the decorative layer are located in the peripheral non-alignment area, and the optical density value of the decorative layer is within a range from 4.5 to 4.9.

Description

Liquid crystal display panel
Technical Field
The present disclosure relates to display panels, and particularly to a liquid crystal display panel.
Background
In a liquid crystal display panel, an active device array substrate and an opposite substrate are generally bonded by an encapsulant, and the orientation of liquid crystal molecules is controlled by an alignment layer. In the bonding process, if the encapsulant contacts the alignment layer, impurities in the encapsulant may contaminate the alignment layer during curing of the encapsulant, thereby affecting the properties of the alignment layer. In order to avoid the contamination of the alignment layer by the encapsulant, it is proposed to keep the alignment layer at a distance from the encapsulant. However, since no alignment layer is disposed in the region adjacent to the inner edge of the sealant, the liquid crystal molecules in the region are irregularly arranged, and light leakage is easily generated. Although the decoration layer disposed in the peripheral region can block the light beam passing through the peripheral region, the decoration layer used at present is still insufficient to effectively improve the problem of light leakage.
Disclosure of Invention
The invention provides a liquid crystal display panel which can effectively improve the problem of light leakage.
The invention discloses a liquid crystal display panel which comprises an active device array substrate, an opposite substrate, sealing glue and a liquid crystal layer. The opposite substrate comprises a decoration layer and a color filter layer. The sealing compound is used for connecting the active device array substrate and the opposite substrate to form a closed space. The liquid crystal layer is located in the closed space. The enclosed space has a peripheral non-alignment region adjacent to the inner edge of the encapsulant. The liquid crystal layer, the color filter layer and the decoration layer are located in the peripheral non-alignment area. The optical density value of the decorative layer falls within a range of 4.5 to 4.9.
In an embodiment of the invention, a material of the decoration layer includes resin.
In an embodiment of the present invention, the carbon content in the decoration layer falls within a range of 8% to 26%, and the thickness of the decoration layer falls within a range of 1 micrometer to 1.35 micrometers.
In an embodiment of the invention, the light transmittance of the color filter layer falls within a range of 20% to 25%.
In an embodiment of the invention, in the peripheral non-alignment region, the decoration layer covers the peripheral non-alignment region, and the color filter layer is located between the decoration layer and the liquid crystal layer.
In an embodiment of the invention, the enclosed space further has an alignment region. The alignment region has a display region and a peripheral alignment region. The peripheral alignment region is located between the display region and the peripheral non-alignment region, and the liquid crystal layer, the color filter layer and the decorative layer are also located in the display region and the peripheral alignment region. In the display area, the decoration layer has a plurality of openings, and the plurality of openings respectively expose a plurality of color filter patterns in the color filter layer. In the peripheral alignment region, the decoration layer covers the peripheral alignment region, and the color filter layer is located between the decoration layer and the liquid crystal layer.
In an embodiment of the invention, when the liquid crystal display panel is in the dark state, the luminance of the peripheral non-alignment region is less than one-half of the luminance of the display region.
In an embodiment of the present invention, the brightness of the peripheral non-alignment region is less than 0.07cd/m2。
In an embodiment of the invention, when the liquid crystal display panel is in a bright state, the active device array substrate provides the lateral electric field to the liquid crystal layer, and when the liquid crystal display panel is in a dark state, the active device array substrate does not provide the lateral electric field to the liquid crystal layer.
In an embodiment of the invention, the liquid crystal display panel is an in-plane switching type liquid crystal display panel or a fringe field switching type liquid crystal display panel.
Based on the above, in the liquid crystal display panel according to the embodiment of the invention, the optical density value of the decoration layer is adjusted to fall within the range of 4.5 to 4.9, so that the light beam shielding effect is better. In addition, the color filter layer is also arranged in the peripheral non-alignment area, and partial light beams can be further blocked from passing through, so that the liquid crystal display panel disclosed by the embodiment of the invention can effectively improve the light leakage problem of the peripheral non-alignment area.
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1 is a schematic partial cross-sectional view of an LCD panel according to an embodiment of the invention;
FIG. 2 is a diagram illustrating the relationship between the luminance of the display region and the peripheral non-alignment region and the luminance of the light source when the LCD panel is in a dark state according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic partial cross-sectional view of a liquid crystal display panel according to an embodiment of the invention. Referring to fig. 1, the lcd panel 100 includes an active device array substrate 110, an opposite substrate 120, a sealant 130, and a liquid crystal layer 140. The encapsulant 130 bonds the active device array substrate 110 and the opposite substrate 120 to form an enclosed space SP. The liquid crystal layer 140 is located in the closed space SP.
In detail, the active device array substrate 110 includes a first substrate SUB1 and a first alignment layer a L1. the first alignment layer a L1 is disposed on a surface of the first substrate SUB1 facing the liquid crystal layer 140, wherein the first alignment layer a L1 is located in the alignment region a2 of the enclosed space SP and is not located in the peripheral non-alignment region a1 of the enclosed space SP. in other words, the first alignment layer a L1 overlaps the alignment region a2, and the first alignment layer a L1 does not overlap the peripheral non-alignment region a 1. by keeping the first alignment layer a L1 spaced apart from the sealant 130, the first alignment layer a L1 is prevented from being contaminated by the sealant 130, thereby maintaining the alignment characteristic of the first alignment layer a L1.
For example, the active device array substrate 110 may further include a plurality of scan lines, a plurality of data lines, a plurality of active devices (not shown), a plurality of pixel electrodes and/or a plurality of common electrodes disposed on the first substrate SUB1 and between the first substrate SUB1 and the first alignment layer a L1.
The opposite substrate 120 includes a second substrate SUB2, a decoration layer 122, a color filter layer 124 and a second alignment layer a L2, the decoration layer 122 is disposed on the surface of the second substrate SUB2 facing the liquid crystal layer 140, and the decoration layer 122 is located in the peripheral non-alignment region a1 and the alignment region a 2.
In detail, the alignment region a2 has a display region a22 and a peripheral alignment region a24, and the peripheral alignment region a24 is located between the display region a22 and the peripheral non-alignment region a 1. The display area a22 is the area of the lcd panel 100 providing image frames, and the peripheral alignment area a24 and the peripheral non-alignment area a1 are the areas of the lcd panel 100 configured with peripheral circuits.
For example, in the display area a22, the decoration layer 122 may shield the scan lines, the data lines, and the active devices, and the decoration layer 122 has a plurality of openings 122a for the light beam L to pass through, and the decoration layer 122 may cover the peripheral alignment area a24 and the peripheral non-alignment area a 1.
The color filter layer 124 includes a plurality of color filter patterns. For example, the color filter layer 124 may include a plurality of color filter patterns R, a plurality of color filter patterns G, and a plurality of color filter patterns B, but not limited thereto. In the display area a22, the color filter pattern R, the color filter pattern G, and the color filter pattern B are respectively disposed at least in the plurality of openings 122a of the decoration layer 122. In other words, the openings 122a of the decoration layer 122 respectively expose the color filter patterns in the color filter layer 124. In addition, the color filter patterns may be disposed on the decorative layer 122 in the peripheral alignment region a24 and the peripheral non-alignment region a 1.
The second alignment layer a L2 is disposed on the decoration layer 122 and the color filter layer 124, wherein the second alignment layer a L2 is located in the alignment area a2 and not located in the peripheral non-alignment area a 1. in other words, the second alignment layer a L2 overlaps the alignment area a2, and the second alignment layer a L2 does not overlap the peripheral non-alignment area a 1. furthermore, in the peripheral alignment area a24, the color filter layer 124 is located between the decoration layer 122 and the liquid crystal layer 140. by keeping the second alignment layer a L2 away from the encapsulant 130, the second alignment layer a L2 is prevented from being contaminated by the encapsulant 130, thereby maintaining the alignment characteristics of the second alignment layer a L2.
In the embodiment, the liquid crystal display panel 100 may be an In-Plane Switching (IPS) liquid crystal display panel, a Fringe Field Switching (FFS) liquid crystal display panel, or other liquid crystal display panel having the lateral electric Field display technology, since the liquid crystal display panel itself does not emit light, the liquid crystal display panel 100 needs to be used with a backlight module B L providing a light beam L to display an image, and In addition, polarizers (not shown) may be respectively disposed on two opposite outer surfaces of the liquid crystal display panel 100 to control gray scales of the displayed image.
When the liquid crystal display panel 100 is in a bright state, the active device array substrate 110 provides a transverse electric field to the liquid crystal layer 140 to drive liquid crystal molecules in the liquid crystal layer 140 to rotate, so that the light beam L is output through the polarizers on the two opposite outer surfaces of the liquid crystal display panel 100. on the other hand, when the liquid crystal display panel 100 is in a dark state, the active device array substrate 110 does not provide a transverse electric field to the liquid crystal layer 140, so that the light beam L cannot pass through the polarizers on the two opposite outer surfaces of the liquid crystal display panel 100.
In the liquid crystal display panel 100, the luminance of the light beam output from the peripheral non-alignment region a1 can be effectively reduced by the design that the Optical Density (OD) of the decoration layer 122 falls within the range of 4.5 to 4.9 and the color filter layer 124 is further disposed in the peripheral non-alignment region a1, in other words, the liquid crystal display panel 100 can effectively improve the light leakage problem.
The optical density of the decoration layer 122 is related to the material, thickness and doping concentration of the decoration layer 122. When the decoration layer 122 is made of a material such as resin, the optical density value range can be achieved by controlling the carbon content in the decoration layer 122 and the thickness of the decoration layer 122. For example, the carbon content in the decorative layer 122 may fall within a range of 8% to 26%, and the thickness of the decorative layer 122 may fall within a range of 1 micron to 1.35 microns.
FIG. 2 is a diagram illustrating the relationship between the luminance of the display region and the peripheral non-alignment region and the luminance of the light source when the LCD panel is in a dark state according to an embodiment of the present invention. The relationship between the luminance of the display region and the peripheral non-alignment region and the luminance of the light source when the liquid crystal display panel is in the dark state is described below with reference to fig. 2. In fig. 2, the optical density values of the decorative layer of the liquid crystal display panel are 4.0, 4.5, and 4.9, respectively. In addition, the following table shows that when the light source luminance of the backlight module is 12000cd/m respectively2、6000cd/m2And 4500cd/m2The brightness of the display area and the peripheral non-alignment area is determined.
Figure BDA0001961575730000051
Generally, when the liquid crystal display panel is in a dark state, if the brightness of the peripheral non-alignment region (which means the brightness of the light beam outputted from the peripheral non-alignment region) is lowDegree) is less than one-half of the luminance of the display region (i.e., the luminance of the light beam output from the display region), the problem of light leakage in the peripheral non-alignment region is relatively less pronounced. It is noted that when the luminance of the peripheral non-alignment region is less than 0.07cd/m2In this case, the human eye can hardly detect the light leakage in the peripheral non-alignment region.
As shown in FIG. 2 and the above table, when the optical density of the decoration layer is 4.0, the luminance of the peripheral non-alignment region is approximately equal to one-half of the luminance of the display region, but the luminance of the light source is 12000cd/m2And 6000cd/m2When the brightness of the peripheral non-alignment region is larger than 0.07cd/m2. In other words, when the optical density of the decoration layer is 4.0, the light leakage problem under the luminance of the light source cannot be effectively improved.
When the optical density values of the decoration layers are 4.5 and 4.9, the brightness of the peripheral non-alignment area is less than one half of that of the display area under the three different light source brightness, and the brightness of the peripheral non-alignment area is less than 0.07cd/m2. In other words, when the optical density of the decoration layer is greater than or equal to 4.5, the light leakage problem of the peripheral non-alignment area can be improved, and when the optical density of the decoration layer is larger, the light leakage problem of the peripheral non-alignment area can be further improved. Therefore, when the optical density of the decoration layer is in the range of 4.5 to 4.9, the light beam shielding effect is good, and the light leakage of the peripheral non-alignment area is hardly perceived by human eyes. In addition, the color filter layer 124 located in the peripheral non-alignment area a1 can also block part of the light beams from passing through, thereby further suppressing the light leakage problem.
In summary, in the liquid crystal display panel according to the embodiment of the invention, the optical density value of the decoration layer is adjusted to fall within the range of 4.5 to 4.9, so that the light beam shielding effect is better. In addition, the color filter layer is also arranged in the peripheral non-alignment area, and partial light beams can be further blocked from passing through, so that the liquid crystal display panel disclosed by the embodiment of the invention can effectively improve the light leakage problem of the peripheral non-alignment area.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A liquid crystal display panel, comprising:
an active device array substrate;
the opposite substrate comprises a decorative layer and a color filter layer;
the sealing glue is used for jointing the active device array substrate and the opposite substrate to form a closed space; and
a liquid crystal layer in the closed space,
wherein the enclosed space has a peripheral non-alignment region adjacent to an inner edge of the encapsulant, the liquid crystal layer, the color filter layer, and the decorative layer are located in the peripheral non-alignment region, and an optical density value of the decorative layer is within a range of 4.5 to 4.9.
2. The liquid crystal display panel of claim 1, wherein the material of the decoration layer comprises resin.
3. The liquid crystal display panel according to claim 2, wherein the carbon content in the decorative layer falls within a range of 8% to 26%, and the thickness of the decorative layer falls within a range of 1 μm to 1.35 μm.
4. The liquid crystal display panel according to claim 1, wherein a light transmittance of the color filter layer falls within a range of 20% to 25%.
5. The LCD panel of claim 1, wherein in the peripheral non-alignment region, the decorative layer covers the peripheral non-alignment region, and the color filter layer is located between the decorative layer and the liquid crystal layer.
6. The LCD panel of claim 1, wherein the enclosed space further comprises an alignment region having a display region and a peripheral alignment region between the display region and the peripheral non-alignment region, and the liquid crystal layer, the color filter layer and the decorative layer are further disposed in the display region and the peripheral alignment region, wherein
In the display area, the decoration layer is provided with a plurality of openings which respectively expose a plurality of color filter patterns in the color filter layer,
in the peripheral alignment region, the decoration layer covers the peripheral alignment region, and the color filter layer is located between the decoration layer and the liquid crystal layer.
7. The panel of claim 6, wherein the brightness of the peripheral non-alignment region is less than one-half of the brightness of the display region when the panel is in a dark state.
8. The LCD panel of claim 7, wherein the luminance of the peripheral non-alignment region is less than 0.07cd/m2。
9. The liquid crystal display panel of claim 1, wherein the active device array substrate provides a lateral electric field to the liquid crystal layer when the liquid crystal display panel is in a bright state, and wherein the active device array substrate does not provide a lateral electric field to the liquid crystal layer when the liquid crystal display panel is in a dark state.
10. The LCD panel of claim 9, wherein the LCD panel is an in-plane switching (IPS) LCD panel or a Fringe Field Switching (FFS) LCD panel.
CN201910085278.6A 2019-01-29 2019-01-29 Liquid crystal display panel Withdrawn CN111487817A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08179305A (en) * 1994-12-21 1996-07-12 Toshiba Corp Liquid crystal display element
CN1624548A (en) * 2003-12-01 2005-06-08 Lg.菲利浦Lcd株式会社 Color filter on thin film transistor type liquid crystal display device and method of fabricating the same
CN101101401A (en) * 2006-07-07 2008-01-09 中华映管股份有限公司 Shading structure, Colorful light filtering substrate, positive element array substrate and liquid crystal panel
CN102402070A (en) * 2011-12-02 2012-04-04 深圳市华星光电技术有限公司 Substrate of liquid crystal display device, liquid crystal display device and manufacturing method for liquid crystal display device
CN104360547A (en) * 2014-12-04 2015-02-18 京东方科技集团股份有限公司 Display panel as well as production method thereof and display device
CN206431397U (en) * 2017-02-09 2017-08-22 上海天马微电子有限公司 Liquid crystal display panel and display device
CN109031801A (en) * 2018-07-16 2018-12-18 深圳市华星光电半导体显示技术有限公司 A kind of liquid crystal display panel and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08179305A (en) * 1994-12-21 1996-07-12 Toshiba Corp Liquid crystal display element
CN1624548A (en) * 2003-12-01 2005-06-08 Lg.菲利浦Lcd株式会社 Color filter on thin film transistor type liquid crystal display device and method of fabricating the same
CN101101401A (en) * 2006-07-07 2008-01-09 中华映管股份有限公司 Shading structure, Colorful light filtering substrate, positive element array substrate and liquid crystal panel
CN102402070A (en) * 2011-12-02 2012-04-04 深圳市华星光电技术有限公司 Substrate of liquid crystal display device, liquid crystal display device and manufacturing method for liquid crystal display device
CN104360547A (en) * 2014-12-04 2015-02-18 京东方科技集团股份有限公司 Display panel as well as production method thereof and display device
CN206431397U (en) * 2017-02-09 2017-08-22 上海天马微电子有限公司 Liquid crystal display panel and display device
CN109031801A (en) * 2018-07-16 2018-12-18 深圳市华星光电半导体显示技术有限公司 A kind of liquid crystal display panel and preparation method thereof

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Application publication date: 20200804