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Resin black matrix substrate and touch panel

A resin and black matrix technology, which is applied in optics, instruments, electrical digital data processing, etc., can solve the problem of high surface reflectivity of resin black matrix, and achieve the effect of high shading, low reflectivity, and thin film thickness

Active Publication Date: 2015-11-18
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to see the display area of ​​the display widely, it is necessary to make the black display part of the display match the color tone of the resin black matrix on the cover glass, but since the reflectivity of the resin black matrix surface is high, the boundary with the black display part of the display is sharp become a problem

Method used

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  • Resin black matrix substrate and touch panel
  • Resin black matrix substrate and touch panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0159] After filtering the produced photosensitive colored resin composition A-1 with a filter made of Teflon (registered trademark) of 2 μm, a filter made by Mikasa Co., Ltd. was used so that the film thickness was 1.5 μm (after post-baking). Coating device 1H-DS Coats on a chemically strengthened glass substrate with a thickness of 0.7 μm. The substrate coated with the photosensitive colored resin composition A-1 was heat-treated for 2 minutes using needle-shaped protrusions on a hot plate at 90° C., and then the substrate was directly placed on the hot plate for 2 minutes for pre-baking. Using a mask aligner (PEM-6M, produced by Union Optical Co., Ltd.) for this coating film, the mask was used for the resolution test at 200 mJ / cm through the mask for the resolution test. 2 Exposure at the exposure level.

[0160] Next, it developed with the alkali developer of 0.045 mass % potassium hydroxide aqueous solution, and wash|cleaned with pure water next, and the board|substrate ...

Embodiment 2

[0163] Except having used A-2 as a photosensitive colored resin composition, it carried out similarly to BM (A)-1, and obtained the BM (A)-2 board|substrate.

[0164] Except for using B-1 as the photosensitive colored resin composition, BM(B)-1 was formed on the BM(A)-2 substrate with a film thickness of 1.4 μm in the same manner as BM(A)-1, Make two layers of BM-2.

Embodiment 3

[0166] A BM(A)-3 substrate was obtained in the same manner as BM-1 except that A-2 was used as the photosensitive colored resin composition so that the film thickness was 1.0 μm.

[0167] Except for using B-1 as the photosensitive colored resin composition, BM(B)-1 was formed on the BM(A)-3 substrate with a film thickness of 1.4 μm in the same manner as BM(A)-1, Make two layers of BM-3.

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Abstract

The purpose of the present invention is to provide a resin black matrix substrate which exhibits a low reflectivity though the resin black matrix has a small thickness and high light-shielding properties and which can thereby ensure easy color matching between the resin black matrix and a black-display area of a display. The present invention provides a resin black matrix substrate which is equipped with a transparent substrate (2), a first resin black matrix (3) formed on the transparent substrate (2), and a second resin black matrix (4) formed on the first resin black matrix (3), wherein: the first resin black matrix has a film thickness of 0.7μm or more and exhibits chromaticity coordinates of transmitted light that satisfy 0.001≤x≤0.300 and 0.001≤y≤0.250; and the two-layer black matrix composed of the first and second resin black matrixes exhibits an optical density of 3.5 or more.

Description

technical field [0001] The invention relates to a resin black matrix substrate and a touch panel. Background technique [0002] As a black matrix for displays, instead of metal thin films using chromium-based materials, resin black matrices that can reduce costs and environmental pollution have been developed in recent years. The resin black matrix is ​​formed by applying a photosensitive black resin composition containing a light-shielding material such as resin and carbon black on a transparent substrate such as glass and drying it to form a black film, which is finely patterned and formed by photolithography. Grid shape, thus forming a resin black matrix. Also, for example, in a recently proposed cover glass-integrated touch panel, a transparent electrode such as an ITO electrode is formed on a black matrix formed on a cover glass. [0003] In order to see the display area of ​​the display widely, it is necessary to make the black display part of the display match the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/30G02B5/22G02F1/1333G02F1/1335
CPCG02B5/22G02F1/13338G02F1/133512G06F3/0412G06F2203/04103
Inventor 井上欣彦相原凉介
Owner TORAY IND INC
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