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transparent conductive film

A transparent conductive film, transparent conductive technology, applied to the conductive layer on the insulating carrier, electrical digital data processing, instruments, etc., can solve the problem of poor aesthetics of the electrostatic capacitive touch panel

Active Publication Date: 2018-09-14
LINTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, when the transparent conductive film is patterned in this way, the boundary between the patterned part and the non-patterned part is easily seen, and the aesthetics of the capacitive touch panel deteriorates.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0253] 1. Preparation of composition for medium refractive index layer formation

[0254] In the container, 100 parts by weight of a hard coating agent containing reactive silica particles (manufactured by JSR Corporation, OPSTAR Z7530, solid content concentration 73% by weight, liquid component: methyl ethyl alcohol) base ketone), 3.7 parts by weight of photoinitiator (BASF Co., Ltd., IRGACURE907, solid content concentration: 100% by weight), 0.1 parts by weight of leveling agent (BYK Chemie Co., Ltd., BYK-355, solid content concentration: 52% by weight, liquid component: propylene glycol monomethyl ether acetate), and 1350 parts by weight of propylene glycol monomethyl ether as a diluent solvent were accommodated and uniformly mixed to prepare a solid content concentration: about 5.3% by weight. Compositions.

[0255] In addition, the composition of the hard coat agent (JSR Corporation make, OPSTAR Z7530, liquid component: methyl ethyl ketone) containing reactive silica mic...

Embodiment 2

[0292] In Example 2, as a transparent plastic film substrate, thickness (L): 125 μm, thermal shrinkage rate (T1) in the direction perpendicular to the main orientation axis: 0.21%, and thermal shrinkage rate in the direction parallel to the main orientation axis (T2): 0.24%, T1 / L: 0.0016% / μm, and T2 / L: 0.0019% / μm PET film. Transparent conductive films were produced and evaluated in the same manner as in Example 1. Table 1 shows the obtained results.

Embodiment 3

[0294] In Example 3, as a transparent plastic film substrate, thickness (L): 50 μm, thermal shrinkage rate (T1) in the direction perpendicular to the main orientation axis: 0.19%, and thermal shrinkage rate in the direction parallel to the main orientation axis (T2): 0.15%, T1 / L: 0.0038% / μm, and T2 / L: 0.003% / μm PET film. A transparent conductive film was produced and evaluated in the same manner as in Example 1. Table 1 shows the obtained results.

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Abstract

The present invention provides a transparent conductive thin film having a simple thin film structure, and on the other hand, the pattern shape of the transparent conductive film is difficult to see even when annealing is performed. The transparent conductive film is a transparent conductive film formed by sequentially laminating an optical adjustment layer and a transparent conductive film on at least one side of a transparent plastic film substrate. When the transparent plastic film is heated at 150°C for 1 hour, the transparent plastic film substrate The thermal shrinkage rate of the material in the direction perpendicular to the main orientation axis is T1 (%), the thermal shrinkage rate of the transparent plastic film substrate in the direction parallel to the main orientation axis is T2 (%), and the thickness of the transparent plastic film substrate When L (μm), the following relational expressions (1) and (2) are satisfied. T1 / L<0.0045 (1) T2 / L<0.0035 (2)

Description

technical field [0001] The invention relates to a transparent conductive film. [0002] In particular, it relates to a transparent conductive film having a simple thin film structure, and on the other hand, the pattern shape of the transparent conductive film is difficult to be seen even when annealing treatment is performed. Background technique [0003] Conventionally, a touch panel capable of inputting information through direct contact with an image display unit is formed by disposing a light-transmitting input device on a display. [0004] As a representative form of the above touch panel, there is a resistive film type touch panel in which two transparent electrode substrates are arranged with a gap so that the respective transparent electrode layers face each other, and the static electricity generated between the transparent electrode film and the finger is used. A capacitive touch panel that varies in capacitance. [0005] Among them, in capacitive touch panels, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
CPCB32B7/025C23C14/086H01B5/14
Inventor 荒添铁也大类知生所司悟
Owner LINTEC CORP