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Coating composition, conductive film, touch panel and manufacturing method

A coating composition and touch panel technology, applied in coatings, conductive coatings, nonlinear optics, etc., can solve the problems of liquid crystal display panel electromagnetic interference, light leakage, display quality degradation, etc., and achieve the effect of improving the performance of the touch panel

Active Publication Date: 2022-03-04
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. However, as a problem that does not occur in the liquid crystal display panel of the vertical electric field method, there is a problem that the liquid crystal display panel receives static electricity from the outside or inside. Effects, external electromagnetic interference, resulting in problems such as light leakage during black display and other problems such as degradation of display quality

Method used

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  • Coating composition, conductive film, touch panel and manufacturing method
  • Coating composition, conductive film, touch panel and manufacturing method
  • Coating composition, conductive film, touch panel and manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0114] Hereinafter, the present invention will be specifically described based on examples. However, the present invention is not limited to the following examples. In addition, below, unless otherwise indicated, "part" and "%" are mass standards.

[0115]

[0116] As a chain-like ATO particle dispersion liquid, "ELCOM V-3560" manufactured by Nikki Catalytic Chemicals Co., Ltd. was prepared. The chain-like ATO particle dispersion "ELCOM V-3560" is a mixed dispersion of chain-like ATO particles: 20.8 parts, ethanol: 70.0 parts, and isopropanol: 9.2 parts.

[0117] image 3 and Figure 4 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 particles are chain-shaped ATO particles (chain-shaped conductive inorganic particles) formed by connecting 2 to 50 primary particles with a partic...

manufacture example

[0121]

[0122] Add 20.8 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-Chemie Japan Co., Ltd., and isobutanol to a plastic bottle. (Solvent) 77.2 parts, using the zirconia beads of diameter 0.3mm, after disperse|distributing for 2 hours with the varnish mixer (made by Toyo Seiki Co., Ltd.), it stirred and manufactured the dispersion liquid A.

Embodiment 1～6 and comparative example 1～3

[0124]

[0125] In a plastic bottle, each component was added in an amount to have a predetermined content, and stirred to prepare a coating composition. However, an alkoxysilane is used by diluting with a part of alcohol, adding water and an acid catalyst, and silylation in advance.

[0126] The viscosity of the obtained coating composition was measured using the TV25 type viscometer manufactured by Toki Sangyo Co., Ltd. Tables 2 and 3 show the types of components, compounding amounts, non-volatile solid content and viscosity of the coating composition.

[0127] [Table 2]

[0128]

[0129] [table 3]

[0130]

[0131]

[0132] On a substrate of alkali-free glass having a size of 10 cm square and a thickness of 0.7 mm, the above-mentioned coating composition was applied by a spray coating method to form a coating film. A spray gun (swirl nozzle, diameter: 1.0 mm) manufactured by Nordson Co., Ltd. was used as the spray coater. Coating conditions are as follows. Th...

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Abstract

The invention provides a coating composition, a conductive film, a touch panel and a manufacturing method. An object of the present invention is to further improve touch panel performance, such as touch detection sensitivity, reliability and stability of operation, for a touch panel. The coating composition of the present invention comprises chain-shaped conductive inorganic particles, a binder, a high-boiling point solvent and a low-boiling point solvent. In the coating composition, the content of the chain-shaped conductive inorganic particles is The total amount of the inorganic particles and the binder is 10 to 70% by mass, and the coating composition is used for a coating having a TFT substrate, a liquid crystal layer, a color filter substrate, and a touch panel substrate sequentially laminated between two polarizing plates. In a touch panel, a conductive film is formed on a surface of the touch panel substrate on which an electrode pattern exists.

Description

technical field [0001] The present invention relates to a coating composition for forming a conductive film, and particularly relates to a coating composition for forming a conductive film for a touch panel. Background technique [0002] In the past, as the type of liquid crystal display panel, the longitudinal electric field method represented by the TN (twisted nematic) type used to occupy the majority, but recently, the liquid crystal display panel called the transverse electric field method has gradually become 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. However, as a problem that does not occur in the liquid crystal display panel of the vertical electric field method, there is a problem that the liquid crystal display panel receives static electricity from the outside or inside. Influenced by external electromagnetic interference, there ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044G02F1/1333
CPCG02F1/13338G06F3/044G06F2203/04103C09D5/24C09D7/61C09D7/70C09D7/67B05D1/02G06F3/041
Inventor 西本智久莳田义幸小林哲
Owner MAXELL HLDG LTD
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