CN112379544A - Liquid crystal display panel - Google Patents
Liquid crystal display panel Download PDFInfo
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- CN112379544A CN112379544A CN202011338590.0A CN202011338590A CN112379544A CN 112379544 A CN112379544 A CN 112379544A CN 202011338590 A CN202011338590 A CN 202011338590A CN 112379544 A CN112379544 A CN 112379544A
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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
- G02F1/133345—Insulating layers
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- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
The invention provides a liquid crystal display panel, which comprises an array substrate and a color film substrate; the array substrate comprises a first glass substrate, a scanning line, a data line, an organic insulating layer and a pixel electrode positioned on the organic insulating layer; the color film substrate comprises a second glass substrate, black matrixes positioned on the second glass substrate, a plurality of color layers positioned between adjacent black matrixes and a flat layer covering the black matrixes and the color layers, wherein the color layers comprise a red color layer, a green color layer and a blue color layer; the organic insulating layer is formed by exposure of a half-tone mask, the height of the organic insulating layer in the area corresponding to the red color layer is H1, the height of the organic insulating layer in the area corresponding to the green color layer is H1 < H2 < H3, and the height of the organic insulating layer in the area corresponding to the blue color layer is H1. The invention forms the organic insulating layer with inconsistent height through the exposure of the half-tone photomask, thereby achieving the purposes of adjusting different box thicknesses of the areas corresponding to different color layers and adjusting the chromaticity of the panel.
Description
Technical Field
The invention relates to the technical field of panel display, in particular to a liquid crystal display panel.
Background
Fig. 1 is a schematic structural diagram of a liquid crystal display panel, where the liquid crystal display panel includes an array substrate 10 and a color filter substrate 20 that are oppositely disposed, the color filter substrate 20 includes a black matrix 22 located on a glass substrate 21, a color layer 23 located between adjacent black matrices 22, and a transparent electrode 24 covering the black matrix 22 and the color layer 23, and the color layer 23 is a red color layer, a green color layer, and a blue color layer, respectively. The array substrate 10 and the color film substrate 20 are respectively provided with a red pixel unit (red), a green pixel unit (green) and a blue pixel unit (blue) which are oppositely arranged. For the film thickness of the color layer of the color film substrate, the film thickness of the red color layer is less than that of the green color layer and less than that of the blue color layer; for the box thickness measurement of the display area of the lcd panel, the green pixel unit (green) is used as a reference, and for the 55-inch lcd panel, the box thickness of the green pixel unit (green) (i.e. the distance between the array substrate 10 and the color filter substrate 20 corresponding to the green pixel unit (green)) is 3.4um, so the box thickness of the display area of the actual panel is: CG (red) > 3.4 μm, CG (green) ═ 3.4 μm, CG (blue) < 3.4 μm, where CG means box thickness.
In fig. 2, a flat layer 25 is added to the black matrix 22 and the color layer 23 in addition to fig. 1, and the transparent electrode layer 24 is located on the flat layer 25, so that although the film thicknesses of the red, green, and blue color layers are different, the cell thickness of the actual panel display area is: cg (red) cg (blue) 3.4 μm.
Fig. 3 is a graph showing the result of chromaticity simulation of fig. 1 and fig. 2, respectively, in which the thickness of the cell (optical path difference) at the color layer is changed and the luminance ratios of RY, GY, and BY are changed to cause a shift in white point coordinates after the flattening layer 25 is added.
Disclosure of Invention
The invention aims to provide a liquid crystal display panel which can adjust areas corresponding to different color layers and has different box thicknesses.
The invention provides a liquid crystal display panel, which comprises an array substrate and a color film substrate which are oppositely arranged; the array substrate comprises a first glass substrate, scanning lines and data lines which are positioned on the glass substrate and are arranged in a criss-cross mode, an organic insulating layer covering the scanning lines and the data lines and pixel electrodes positioned on the organic insulating layer; the color film substrate comprises a second glass substrate, black matrixes positioned on the second glass substrate, a plurality of color layers positioned between adjacent black matrixes and a flat layer covering the black matrixes and the color layers, wherein the color layers comprise a red color layer, a green color layer and a blue color layer; the organic insulating layer is formed by exposure of a half-tone mask, the height of the organic insulating layer in the area corresponding to the red color layer is H1, the height of the organic insulating layer in the area corresponding to the green color layer is H1 < H2 < H3, and the height of the organic insulating layer in the area corresponding to the blue color layer is H1.
Preferably, H2-H1 is 0.01 to 0.3 μm, and H3-H2 is 0.01 to 0.3 μm.
Preferably, the cell thickness of the display area of the liquid crystal display panel is: the box thickness in the red pixel region is D1, the box thickness in the green pixel region is D2, the box thickness in the blue pixel region is D3, and D1 > D2 > D3.
Preferably, D1 > 3.4 μm, D2 ═ 3.4 μm, and D3 < 3.4 μm.
Preferably, the transmittance of the halftone mask correspondingly positioned on the red color layer, the green color layer and the blue color layer is different and is between 70% and 95%.
The invention also provides a liquid crystal display panel, which comprises an array substrate and a color film substrate which are oppositely arranged; the array substrate comprises a first glass substrate, scanning lines and data lines which are positioned on the glass substrate and are arranged in a criss-cross mode, an organic insulating layer covering the scanning lines and the data lines and pixel electrodes positioned on the organic insulating layer; the color film substrate comprises a second glass substrate, black matrixes positioned on the second glass substrate, a plurality of color layers positioned between adjacent black matrixes and a flat layer covering the black matrixes and the color layers, wherein the color layers comprise a red color layer, a green color layer and a blue color layer; the organic insulating layer is formed by exposure of a half-tone mask, the height of the organic insulating layer in the area corresponding to the red color layer is H1, the height of the organic insulating layer in the area corresponding to the green color layer is H1 > H2 > H3, and the height of the organic insulating layer in the area corresponding to the blue color layer is H1.
Preferably, H1-H2 is 0.01 to 0.3 μm, and H2-H3 is 0.01 to 0.3 μm.
Preferably, the cell thickness of the display area of the liquid crystal display panel is: the box thickness in the red pixel region is D1, the box thickness in the green pixel region is D2, the box thickness in the blue pixel region is D3, and D1 < D2 < D3.
Preferably, D1 < 3.4 μm, D2 ═ 3.4 μm, and D3 > 3.4 μm.
Preferably, the transmittance of the halftone mask correspondingly positioned on the red color layer, the green color layer and the blue color layer is different and is between 70% and 95%.
The invention forms the organic insulating layer with inconsistent height through the exposure of the half-tone photomask, thereby achieving the purposes of adjusting different box thicknesses of the areas corresponding to different color layers and adjusting the chromaticity of the panel.
Drawings
FIG. 1 is a schematic structural diagram of a conventional LCD panel without a planarization layer;
FIG. 2 is a schematic structural diagram of a conventional LCD panel with a planarization layer;
FIG. 3 is a graph of the results of a colorimetric simulation of FIGS. 1 and 2, respectively;
FIG. 4 is a schematic structural diagram of a liquid crystal display panel according to the present invention.
Detailed Description
The present invention is further illustrated by the following figures and specific examples, which are to be understood as illustrative only and not as limiting the scope of the invention, which is to be given the full breadth of the appended claims and any and all equivalent modifications thereof which may occur to those skilled in the art upon reading the present specification.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
The first embodiment:
as shown in fig. 4, the liquid crystal display panel includes an array substrate 10 and a color filter substrate 20 which are oppositely disposed, and a liquid crystal (not shown) located between the array substrate 10 and the color filter substrate 20.
The array substrate 10 includes a first glass substrate 11, scan lines 12 and data lines 13 disposed on the glass substrate 11 and crossing each other in a longitudinal and lateral direction, a gate insulating layer (not shown) covering the scan lines 12, a semiconductor layer (not shown) disposed on the gate insulating layer, an organic insulating layer 14 covering the scan lines 12 and the data lines 13, and pixel electrodes 15 disposed on the organic insulating layer 14.
The color filter substrate 20 includes a second glass substrate 21, a black matrix 22 on the second glass substrate 21, a plurality of color layers between adjacent black matrices 22, and a flat layer 24 covering the black matrix 22 and the color layers, in this embodiment, the color layers include a red color layer 231, a green color layer 232, and a blue color layer 233, the red color layer 231 is correspondingly located in a red pixel region, the green color layer 232 is correspondingly located in a green pixel region, and the blue color layer 233 is correspondingly located in a blue pixel region.
Wherein the organic insulating layer 14 is formed by exposing with a halftone mask 100, and the discharge amount (specifically 9000-12000 μ L/s), the exposure amount (specifically 40-60 mj) and the exposure distance (specifically 150-300 μm) of the halftone mask 100 are adjusted; the transmittance of the halftone mask 100 is different between 70% and 95% corresponding to the red color layer 231, the green color layer 232, and the blue color layer 233.
The halftone mask 100 is used to make the organic insulating layer 14 have an uneven shape, the height of the organic insulating layer 14 in the region corresponding to the red color layer 231 is H1, the height of the organic insulating layer 14 in the region corresponding to the green color layer 232 is H2, the height of the organic insulating layer 14 in the region corresponding to the blue color layer 233 is H3, H1 < H2 < H3, H2-H1 is 0.01 μm to 0.3 μm, and H3-H2 is 0.01 μm to 0.3 μm.
The cell thickness of the display area of the liquid crystal display panel is: the box thicknesses cg (red) in the red pixel region are D1, D1 > 3.4 μm, cg (green) in the green pixel region are D2, D2 ═ 3.4 μm, cg (blue) in the blue pixel region are D3, D3 < 3.4 μm, and D1 > D2 > D3.
By adjusting the box thickness of the different areas, we achieve increasing the Wx and Wy values of the panel (WX and WY are white point coordinates).
Second embodiment:
the differences from the first embodiment described above are: h1 is more than H2 is more than H3, H1-H2 are 0.01-0.3 μm, H2-H1 are 0.01-0.3 μm.
The cell thickness of the display area of the liquid crystal display panel is: the cell thicknesses cg (red) < 3.4 μm in the red pixel region, cg (green) > 3.4 μm in the green pixel region, and cg (blue) > 3.4 μm in the blue pixel region, to increase the Wx and Wy values of the panel (Wx and Wy are white point coordinates).
The invention forms the organic insulating layer with inconsistent height through the exposure of the half-tone photomask, thereby achieving the purposes of adjusting different box thicknesses of the areas corresponding to different color layers and adjusting the chromaticity of the panel.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the foregoing embodiments, and various equivalent changes (such as number, shape, position, etc.) may be made to the technical solution of the present invention within the technical spirit of the present invention, and these equivalent changes are all within the protection scope of the present invention.
Claims (10)
1. A liquid crystal display panel comprises an array substrate and a color film substrate which are oppositely arranged; the array substrate comprises a first glass substrate, scanning lines and data lines which are positioned on the glass substrate and are arranged in a criss-cross mode, an organic insulating layer covering the scanning lines and the data lines and pixel electrodes positioned on the organic insulating layer; the color film substrate comprises a second glass substrate, black matrixes positioned on the second glass substrate, a plurality of color layers positioned between adjacent black matrixes and a flat layer covering the black matrixes and the color layers, wherein the color layers comprise a red color layer, a green color layer and a blue color layer; the organic insulating layer is formed by exposure of a half-tone photomask, the height of the organic insulating layer in a region corresponding to the red color layer is H1, the height of the organic insulating layer in a region corresponding to the green color layer is H1 < H2 < H3, and the height of the organic insulating layer in a region corresponding to the blue color layer is H1.
2. The liquid crystal display panel according to claim 1, characterized in that: H2-H1 is 0.01 to 0.3 μm, and H3-H2 is 0.01 to 0.3 μm.
3. The liquid crystal display panel according to claim 1, characterized in that: the cell thickness of the display area of the liquid crystal display panel is: the box thickness in the red pixel region is D1, the box thickness in the green pixel region is D2, the box thickness in the blue pixel region is D3, and D1 > D2 > D3.
4. The liquid crystal display panel according to claim 3, wherein: d1 is more than 3.4 μm, D2 is 3.4 μm, D3 is less than 3.4 μm.
5. The liquid crystal display panel according to claim 1, characterized in that: the light transmittance of the half-tone photomask correspondingly positioned on the red color layer, the green color layer and the blue color layer is different and is between 70 and 95 percent.
6. A liquid crystal display panel comprises an array substrate and a color film substrate which are oppositely arranged; the array substrate comprises a first glass substrate, scanning lines and data lines which are positioned on the glass substrate and are arranged in a criss-cross mode, an organic insulating layer covering the scanning lines and the data lines and pixel electrodes positioned on the organic insulating layer; the color film substrate comprises a second glass substrate, black matrixes positioned on the second glass substrate, a plurality of color layers positioned between adjacent black matrixes and a flat layer covering the black matrixes and the color layers, wherein the color layers comprise a red color layer, a green color layer and a blue color layer; the organic insulating layer is formed by exposure of a half-tone photomask, the height of the organic insulating layer in a region corresponding to the red color layer is H1, the height of the organic insulating layer in a region corresponding to the green color layer is H1 > H2 > H3, and the height of the organic insulating layer in a region corresponding to the blue color layer is H1.
7. The liquid crystal display panel according to claim 6, wherein: H1-H2 is 0.01 to 0.3 μm, and H2-H3 is 0.01 to 0.3 μm.
8. The liquid crystal display panel according to claim 6, wherein: the cell thickness of the display area of the liquid crystal display panel is: the box thickness in the red pixel region is D1, the box thickness in the green pixel region is D2, the box thickness in the blue pixel region is D3, and D1 < D2 < D3.
9. The liquid crystal display panel according to claim 8, wherein: d1 is less than 3.4 μm, D2 is 3.4 μm, D3 is more than 3.4 μm.
10. The liquid crystal display panel according to claim 1, characterized in that: the light transmittance of the half-tone photomask correspondingly positioned on the red color layer, the green color layer and the blue color layer is different and is between 70 and 95 percent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011338590.0A CN112379544A (en) | 2020-11-25 | 2020-11-25 | Liquid crystal display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011338590.0A CN112379544A (en) | 2020-11-25 | 2020-11-25 | Liquid crystal display panel |
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| CN112379544A true CN112379544A (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011338590.0A Pending CN112379544A (en) | 2020-11-25 | 2020-11-25 | Liquid crystal display panel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114911092A (en) * | 2022-05-06 | 2022-08-16 | 武汉华星光电技术有限公司 | Display panel, manufacturing method thereof and display device |
| CN116136628A (en) * | 2021-11-18 | 2023-05-19 | 深超光电（深圳）有限公司 | Liquid crystal display panel, manufacturing method thereof and display device |
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2020
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1457451A (en) * | 2001-02-05 | 2003-11-19 | 索尼公司 | Display and its manufacturing method |
| JP2006154583A (en) * | 2004-11-30 | 2006-06-15 | Sanyo Electric Co Ltd | Transflective color liquid crystal display apparatus and its manufacturing method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116136628A (en) * | 2021-11-18 | 2023-05-19 | 深超光电（深圳）有限公司 | Liquid crystal display panel, manufacturing method thereof and display device |
| CN114911092A (en) * | 2022-05-06 | 2022-08-16 | 武汉华星光电技术有限公司 | Display panel, manufacturing method thereof and display device |
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Application publication date: 20210219 |