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

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

Active Publication Date: 2019-04-05
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 touch, a touch panel, and a manufacturing method. The theme of the invention lies in improving the touch detection sensitivity, the reliability and stability of the operation of touch panel. The coating composition which is the coating composition including with the concatenated conductive inorganic particle, with the binder, with thesolvent with high boiling point, solvent with low boiling point and it experiences and the content of the concatenated conductive inorganic particle as to the coating composition, is 10-70 mass % about the total amount of the binder and concatenated conductive inorganic particle and is used in the use experiencing as to the TFT substrate, which the successively is laminated between the polarizingplate of each liquid crystal layer, and the color filter substrate and the touch panel having the touch panel substrate and forms the conductive film on the surface in which the electrode pattern ofthe touch panel substrate 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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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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