CN114736550A - Composition, COA display panel, liquid crystal display device and display panel preparation method - Google Patents
Composition, COA display panel, liquid crystal display device and display panel preparation method Download PDFInfo
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- CN114736550A CN114736550A CN202210376019.0A CN202210376019A CN114736550A CN 114736550 A CN114736550 A CN 114736550A CN 202210376019 A CN202210376019 A CN 202210376019A CN 114736550 A CN114736550 A CN 114736550A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/41—Organic pigments; Organic dyes
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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
- G02F1/133514—Colour filters
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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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136222—Colour filters incorporated in the active matrix substrate
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- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optical Filters (AREA)
Abstract
The application provides a composition for preparing a green color resistance of a COA display panel, the COA display panel, a liquid crystal display device and a preparation method of the display panel, wherein the composition comprises the following components in percentage by mass: 3.58 to 8 percent of green color paste; 0.3 to 0.6 percent of initiator; 3% -8% of resin; 3% -8% of acrylic monomer; 0.01 to 0.2 percent of adhesion auxiliary agent; 0.01 to 0.2 percent of flatting agent; and solvent, 75% -90%; wherein the resin component consists of 50 to 100 mass percent of acrylic resin containing double bonds and 0 to 50 mass percent of acrylic resin without double bonds. The composition provided by the application reduces the film shrinkage difference of the green color resistance in the metal wiring area and the nonmetal wiring area through material adjustment of the type of the green color resistance resin material, solves the problem of ITO breakage caused by stress difference, and improves the product yield.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a composition for preparing a green color resistance of a COA display panel, the COA display panel, a liquid crystal display device and a preparation method of the display panel.
Background
The COA technology is a technology for directly manufacturing a color resistance layer on an Array substrate, and mainly aims to reduce the loss of aperture opening ratio caused by the alignment precision of a Color Film (CF) substrate and an Array (Array) substrate, effectively solve the problems of light leakage and the like caused by alignment deviation in the box alignment process of a liquid crystal display device and remarkably improve the aperture opening ratio. The general process corresponding to the COA structure is as follows: TFT array → first passivation layer (PV1) → Color resist layer (Color Filter) → second passivation layer (PV2) or organic planarization protective layer → Indium Tin Oxide (ITO) pixel electrode.
Different from the traditional non-coa (non-coa) structure, after the color resistor is disposed in the pixel opening region at the array side, because the green color resistor has different thermal shrinkage degrees in the metal wiring region and the non-metal wiring region in the post-process, the ITO crack (crack) phenomenon is easily caused.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a mechanism of ITO fracture in the prior art. Because the substrate 11 is provided with the metal trace 12, such as a copper electrode, it can be divided into a metal trace region and a non-metal trace region, according to the general process of the COA structure, green color resists 13 are formed on the metal trace region and the non-metal trace region, in the subsequent process, a passivation layer 14 is formed on the color resist layer including the green color resists 13, and an ITO pixel electrode 15 is formed on the passivation layer 14. Due to the existence of the metal wiring 12, the reflectivity of the metal wiring area and the reflectivity of the nonmetal wiring area to light are different, so in the subsequent process, the green color resistor 13 generates film shrinkage difference between the metal wiring area and the nonmetal wiring area, the film of the green color resistor 13 above the metal wiring area is shrunk towards the lower part, the film of the green color resistor 13 above the nonmetal wiring area is shrunk towards the lower part, the film thickness difference of the green color resistor 13 at the two sides of the metal wiring 12 enables the ITO pixel electrode 15 to generate stress towards the two sides, and the ITO is broken 16.
Disclosure of Invention
The embodiment of the application provides a composition for preparing a green color resistance of a COA display panel, the COA display panel, a liquid crystal display device and a preparation method of the display panel, and aims to solve the problem of ITO fracture of the conventional COA display panel.
In a first aspect, the embodiment of the present application provides a composition for preparing a green color resistance of a COA display panel, which is composed of the following components in percentage by mass:
3.58 to 8 percent of green color paste;
0.3 to 0.6 percent of initiator;
3% -8% of resin;
3% -8% of acrylic monomer;
0.01 to 0.2 percent of adhesion auxiliary agent;
0.01 to 0.2 percent of flatting agent; and
75 to 90 percent of solvent;
wherein the resin component comprises 50-100% of acrylic resin containing double bonds and 0-50% of acrylic resin containing no double bonds in percentage by mass.
Optionally, the model of the green color paste is G58/Y138.
Optionally, the solvent is propylene glycol methyl ether acetate.
Optionally, the resin is composed of 60% by mass of acrylic resin containing double bonds and 40% by mass of acrylic resin containing no double bonds.
Optionally, the resin is composed of 70% by mass of acrylic resin containing double bonds and 30% by mass of acrylic resin containing no double bonds.
Optionally, the resin is composed of 80% by mass of acrylic resin containing double bonds and 20% by mass of acrylic resin containing no double bonds.
Optionally, the resin is composed of 90% by mass of acrylic resin containing double bonds and 10% by mass of acrylic resin containing no double bonds.
In a second aspect, embodiments of the present application also provide a COA display panel comprising a green tint block prepared from the composition of any one of the above.
In a third aspect, an embodiment of the present application further provides a liquid crystal display device, where the liquid crystal display device includes the COA display panel.
In a fourth aspect, embodiments of the present application further provide a method for preparing a COA display panel, where the composition according to any one of the above embodiments is used to prepare a green color resist.
The composition for preparing the green color resistance of the COA display panel, provided by the embodiment of the application, can reduce the film shrinkage difference of the green color resistance in a metal wiring area and a nonmetal wiring area by adjusting the type of the green color resistance resin material through the material, solve the problem of ITO breakage caused by stress difference, and improve the product yield.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.
For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts in the following description.
FIG. 1 is a schematic diagram showing the mechanism of ITO cracking in the prior art.
FIG. 2 is a scanning electron microscope image of green color resistance before improvement using the composition of the present invention.
FIG. 3 is a scanning electron microscope image of improved green color resistance using the composition of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. 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 application.
The embodiment of the application provides a composition for preparing a green color resistance of a COA display panel, the COA display panel, a liquid crystal display device and a preparation method of the display panel, the type of a green color resistance resin material is adjusted from a material surface, and the stress generated by the difference of film thickness caused by film shrinkage of the green color resistance in a metal wiring area and a non-metal wiring area is reduced, so that the problem of ITO breakage in a post-processing procedure is solved.
The embodiment of the application provides a composition for preparing a green color resistance of a COA display panel, which comprises the following basic components in percentage by mass:
3.58 to 8 percent of green color paste;
0.3 to 0.6 percent of initiator;
3% -8% of resin;
3% -8% of acrylic monomer;
0.01 to 0.2 percent of adhesion auxiliary agent;
0.01 to 0.2 percent of flatting agent; and
75 to 90 percent of solvent.
During preparation, the components are dissolved in a solvent according to the general preparation process of the color resistance material.
Illustratively, the green color paste can be a green color paste with the model G58/Y138.
Illustratively, the solvent may be Propylene Glycol Methyl Ether Acetate (PGMEA).
The embodiment of the application mainly aims at the composition of the resin component in the composition to adjust the green light-blocking reaction and the thermal film shrinkage in the subsequent process. In the prior art, the resin component generally comprises 30-49.75% of double-bond-containing acrylic resin, 30-49.75% of double-bond-free acrylic resin and 0.5-40% of epoxy resin by mass percent, so that an unqualified product with broken ITO in a subsequent process is produced. The embodiment of the application improves the resin component to obtain the improved qualified product, removes the epoxy resin in the resin component, and the resin component consists of 50-100% of acrylic resin containing double bonds and 0-50% of acrylic resin containing no double bonds in percentage by mass. Illustratively, the resin component may be composed of 50% by mass of a double bond-containing acrylic resin and 50% by mass of a double bond-free acrylic resin.
Referring to fig. 2 and 3, fig. 2 is a scanning electron microscope image of green color resistance before improvement by using the composition of the present invention, and fig. 3 is a scanning electron microscope image of green color resistance after improvement by using the composition of the present invention. Comparing fig. 2 and fig. 3, it can be seen that the ITO condition above the front and rear green resists is improved, the ITO fracture defect rate is high before the improvement, and the ITO fracture defect rate is low after the improvement.
As will be understood by those skilled in the art, the resin is illustratively composed of 100% by mass of a double bond-containing acrylic resin. Illustratively, the resin consists of acrylic resin containing double bonds in an amount of 60% by mass and acrylic resin containing no double bonds in an amount of 40% by mass. Illustratively, the resin consists of acrylic resin containing double bonds in an amount of 70% by mass and acrylic resin containing no double bonds in an amount of 30% by mass. Illustratively, the resin consists of acrylic resin containing double bonds in an amount of 80% by mass and acrylic resin containing no double bonds in an amount of 20% by mass. Illustratively, the resin consists of 90% by mass of acrylic resin containing double bonds and 10% by mass of acrylic resin containing no double bonds.
The embodiment of the application also provides a corresponding COA display panel, the COA display panel adopts the green color resistance prepared by the composition, so that the problem of ITO fracture caused by stress difference caused by different post-process film shrinkage in metal wiring and nonmetal wiring areas due to the green color resistance is solved, and the product yield is improved.
The embodiment of the application is also applied to a liquid crystal display device, and particularly relates to a liquid crystal display device adopting COA technology.
The embodiment of the application also provides a preparation method of the COA display panel, which can be prepared by using a common process technology: the TFT array → the first passivation layer (PV1) → the color resistance layer (R → G → B) → the second passivation layer (PV2) or the organic flat layer → the ITO pixel electrode, wherein the composition of the embodiment of the application is used for preparing the green color resistance, so that the problem of ITO fracture caused by stress difference caused by different film shrinkage in the post-process due to the fact that the green color resistance is in the metal wire and non-metal wire areas is solved, and the product yield is improved; after the manufacturing process is finished, the manufacturing process of the alignment film (PI) is normally carried out, then the assembly with the color film substrate (CF) is finished, and the module manufacturing process is carried out on the attached liquid crystal Cell (Cell) to finish the preparation of the display panel.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The above detailed description is provided for the composition for preparing the green color resists of the COA display panels provided in the examples of the present application, and the principles and embodiments of the present application are explained in the present application by using specific examples, and the above description of the examples is only provided to help understanding the method and the core concept of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. The composition for preparing the green color resistance of the COA display panel is characterized by comprising the following components in percentage by mass:
3.58 to 8 percent of green color paste;
0.3 to 0.6 percent of initiator;
3% -8% of resin;
3% -8% of acrylic monomer;
0.01 to 0.2 percent of adhesion auxiliary agent;
0.01 to 0.2 percent of flatting agent; and
75 to 90 percent of solvent;
wherein the resin component comprises 50-100% of acrylic resin containing double bonds and 0-50% of acrylic resin containing no double bonds in percentage by mass.
2. The composition of claim 1, wherein the green mill base model is G58/Y138.
3. The composition of claim 1, wherein the solvent is propylene glycol methyl ether acetate.
4. The composition according to claim 1, wherein the resin consists of 60% by mass of a double bond-containing acrylic resin and 40% by mass of a double bond-free acrylic resin.
5. The composition according to claim 1, wherein the resin consists of 70% by mass of a double bond-containing acrylic resin and 30% by mass of a double bond-free acrylic resin.
6. The composition according to claim 1, wherein the resin consists of 80% by mass of a double bond-containing acrylic resin and 20% by mass of a double bond-free acrylic resin.
7. The composition according to claim 1, wherein the resin consists of 90% by mass of a double bond-containing acrylic resin and 10% by mass of a double bond-free acrylic resin.
8. A COA display panel comprising a green tint block prepared from the composition of any one of claims 1 to 7.
9. A liquid crystal display device, characterized in that the liquid crystal display device comprises the display panel according to claim 8.
10. A preparation method of a COA display panel, which is characterized in that the composition as claimed in any one of claims 1 to 7 is used for preparing green color resists.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210376019.0A CN114736550A (en) | 2022-04-11 | 2022-04-11 | Composition, COA display panel, liquid crystal display device and display panel preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210376019.0A CN114736550A (en) | 2022-04-11 | 2022-04-11 | Composition, COA display panel, liquid crystal display device and display panel preparation method |
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| Publication Number | Publication Date |
|---|---|
| CN114736550A true CN114736550A (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210376019.0A Pending CN114736550A (en) | 2022-04-11 | 2022-04-11 | Composition, COA display panel, liquid crystal display device and display panel preparation method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1804722A (en) * | 2004-12-24 | 2006-07-19 | 东洋油墨制造株式会社 | Coloring composite for color filter and color filter |
| CN101738862A (en) * | 2008-11-26 | 2010-06-16 | 凸版印刷株式会社 | Green photosensitive coloured composition and colour filter using same |
| CN102135730A (en) * | 2010-01-22 | 2011-07-27 | 京东方科技集团股份有限公司 | Blue photoresistance composition and colorful optical filter |
| CN106249541A (en) * | 2015-06-04 | 2016-12-21 | 住华科技股份有限公司 | Composition for forming green photoresist and color filter using the same |
| JP2017198787A (en) * | 2016-04-26 | 2017-11-02 | 凸版印刷株式会社 | Green photosensitive coloring composition, color filter using the same and color display device |
| CN112764315A (en) * | 2019-10-21 | 2021-05-07 | 固安鼎材科技有限公司 | Photosensitive composition suitable for no-prebaking process and preparation method thereof |
-
2022
- 2022-04-11 CN CN202210376019.0A patent/CN114736550A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1804722A (en) * | 2004-12-24 | 2006-07-19 | 东洋油墨制造株式会社 | Coloring composite for color filter and color filter |
| CN101738862A (en) * | 2008-11-26 | 2010-06-16 | 凸版印刷株式会社 | Green photosensitive coloured composition and colour filter using same |
| CN102135730A (en) * | 2010-01-22 | 2011-07-27 | 京东方科技集团股份有限公司 | Blue photoresistance composition and colorful optical filter |
| CN106249541A (en) * | 2015-06-04 | 2016-12-21 | 住华科技股份有限公司 | Composition for forming green photoresist and color filter using the same |
| JP2017198787A (en) * | 2016-04-26 | 2017-11-02 | 凸版印刷株式会社 | Green photosensitive coloring composition, color filter using the same and color display device |
| CN112764315A (en) * | 2019-10-21 | 2021-05-07 | 固安鼎材科技有限公司 | Photosensitive composition suitable for no-prebaking process and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 李伟杰等: "水溶性丙烯酸酯类感光干膜的制备及其性能研究", 《影像科学与光化学》 * |
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