Coating composition, electro-conductive film, and liquid crystal display panel

一种液晶显示面板、导电性膜的技术，应用在导电涂料、绝缘载体上的导电层、分散在不导电无机材料中的导电材料等方向，能够解决漏光显示品质、降低等问题，达到触摸面板性能提高的效果

Active Publication Date: 2020-04-21
MAXELL HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The liquid crystal display panel of the transverse electric field method has the advantage of wide viewing angle compared with the vertical electric field method, but there are problems that do not occur in the liquid crystal display panel of the longitudinal electric field method, that is, the influence of static electricity from the outside or inside of the liquid crystal display panel, External electromagnetic interference causes light leakage and other display quality degradation problems during black display

Method used

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  • Coating composition, electro-conductive film, and liquid crystal display panel
  • Coating composition, electro-conductive film, and liquid crystal display panel
  • Coating composition, electro-conductive film, and liquid crystal display panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0101] Hereinafter, the present invention will be specifically described based on examples. However, the present invention is not limited by the following examples. In addition, unless otherwise specified, the following "parts" and "%" are mass standards.

[0102] Table 1 shows main materials used in Examples.

[0103] [Table 1]

[0104]

[0105]

[0106] "ELCOM V-3560" manufactured by Nikke Catalyst Chemicals Co., Ltd. was prepared as a chain-like ATO particle dispersion liquid. The chain-like ATO particle dispersion "ELCOM V-3560" is a mixed dispersion of 19.2 parts of chain-like ATO particles, 1.3 parts of a silica-based dispersant, 70.0 parts of ethanol, and 9.5 parts of isopropanol.

[0107] figure 2 and image 3 It is a transmission electron microscope (TEM) photograph of the chain-shaped ATO particle used for the above-mentioned chain-shaped ATO particle dispersion liquid. refer to figure 2 and image 3 , it can be seen that the above-mentioned ATO particle...

manufacture example

[0109]

[0110] Add 20.5 parts of conductive ATO particles "SN100P" (trade name) manufactured by Ishihara Sangyo Co., Ltd., 2.0 parts of dispersant "BYK180" (trade name) manufactured by BYK Chemical Japan Co., Ltd., and 77.5 parts of isobutylene to a plastic bottle. Alcohol (solvent) was dispersed with a paint conditioner (manufactured by Toyo Seiki Co., Ltd.) for 2 hours using zirconia beads with a diameter of 0.3 mm, and stirred to prepare a dispersion liquid A.

Synthetic example 1

[0112] Add an appropriate amount of tetramethoxysilane to the solution with an appropriate amount of low-boiling point alcohol, hydrochloric acid catalyst, and water, drop a small amount each time, and stir for a certain period of time while controlling the temperature and pH, then deacidify with an ion exchange resin It was processed to prepare an alkoxysilane oligomer solution having a solid content concentration of 10 wt % and a weight average molecular weight of 5,200.

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PUM

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Abstract

The present invention addresses the problem of providing a coating composition and an electro-conductive film, capable of improving touch panel performance, such as operational stability over time andtouch detection sensitivity of a liquid crystal display panel having a reduced thickness. This problem is solved by a coating composition comprising chain-like electro-conductive inorganic particles,a binder, a high-boiling-point solvent, and a low-boiling-point solvent, wherein: the contained amount of the chain-like electro-conductive inorganic particles with respect to the total amount of thechain-like electro-conductive inorganic particles and the binder is 30-90 mass%; the binder is an alkoxyl silane having a weight-average molecular weight of 1,000-20,000; and said coating compositionis intended to be used in a liquid crystal display panel that has a TFT array substrate, touch detection electrodes, a liquid crystal layer, and a color filter substrate in order to form an electro-conductive film on a base material surface of said color filter substrate on the opposite side of the liquid crystal layer.

Description

technical field [0001] The present invention relates to a coating composition for forming a conductive film, and particularly to a coating composition for forming a conductive film of a liquid crystal display panel. Background technique [0002] As the method used in liquid crystal display panels, the longitudinal electric field method represented by the TN (twisted nematic) type is the majority, but recently, the liquid crystal display panel called the transverse electric field method is also becoming the mainstream. The liquid crystal display panel of the transverse electric field method has the advantage of wide viewing angle compared with the vertical electric field method, but there are problems that do not occur in the liquid crystal display panel of the longitudinal electric field method, that is, the influence of static electricity from the outside or inside of the liquid crystal display panel, Due to external electromagnetic interference, problems such as light leak...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/00C09D5/24C09D7/20C09D7/61G02F1/1333G06F3/041G09F9/00H01B1/20H01B5/14
CPCC09D5/24C09D7/20C09D7/61H01B1/20G06F3/0412G06F3/044C08K2003/2231C08G77/18C09D7/67C09D7/47G02F1/13439G02F1/13338C03C17/009C03C17/42C03C2217/445C03C2217/475C03C2217/476C08K3/22C09D183/04G02F1/136222G02F1/133516G02F1/1368
Inventor 西本智久小林哲莳田义幸光本欣正北畠香织
Owner MAXELL HLDG LTD
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