Method for producing optical member and curable resin composition used therein

A curable resin and manufacturing method technology, applied in optics, nonlinear optics, instruments, etc., can solve problems such as discharge, yield drop, substrate deformation, etc.

Inactive Publication Date: 2017-04-19
NIPPON KAYAKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the case of manufacturing an image display device by forming an image display device by forming the peripheral wall portion in a rectangular shape so that the flow blocking portion completely separates the adhesive filled area from the external area as described in Patent Documents 1 and 2, there are the following problems: When the adhesive is cured to form a cured product layer, inner surface stress is generated due to shrinkage of the adhesive due to curing, and deformation of the substrate oc

Method used

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  • Method for producing optical member and curable resin composition used therein
  • Method for producing optical member and curable resin composition used therein
  • Method for producing optical member and curable resin composition used therein

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0057] figure 1 It is a process drawing which shows 1st Embodiment of the manufacturing process of the optical member of this invention.

[0058] This method is a method of obtaining an optical member (image display device) by bonding the liquid crystal display unit 1 and the protective plate 2 together.

[0059] The liquid crystal display unit 1 is a liquid crystal display unit in which a liquid crystal material is sealed between a pair of substrates on which electrodes are formed, and includes a polarizing plate, a driving circuit, a signal input cable, and a backlight unit.

[0060] figure 2 It is a cross-sectional view showing a main part of an example of the liquid crystal display unit 1 . Such as figure 2 As shown, the liquid crystal display unit 1 is configured as follows: a polarizing plate 22 is disposed on a liquid crystal display cell 21 , and a sealing body 23 is disposed on the liquid crystal display cell 21 so as to surround the polarizing plate 22 . Here, ...

no. 2 approach

[0165] The optical member of the present invention can also be produced by the second embodiment modified as follows from the first embodiment.

[0166] [Process A]

[0167] First, if Figure 5 As shown in (a), the 2nd curable resin composition 12 containing a (meth)acrylate (A) and a photoinitiator (B) is apply|coated on the surface on the guard plate 2 in which the light shielding part 4 was formed.

[0168] Here, like the first embodiment, in the present invention, the second cured material layer 14 is laminated between the liquid crystal display unit 1 and the protective plate 2 in the form of a linearly extending layer or a dot-like scattered layer, thereby forming In order to separate the inner area and the outer area of ​​the filling chamber 17 filled with the first curable resin composition, at least a part of the partition wall is provided with a communicating portion connecting the inner area and the outer area of ​​the filling chamber. Additionally, if Figure 4 ...

no. 3 approach

[0182] The optical member of the present invention can also be produced by the third embodiment modified as follows on the basis of the first embodiment and the second embodiment.

[0183] [Process A]

[0184] First, if Figure 6 As shown in (a), the second curable resin composition 12 containing (meth)acrylate (A) and photopolymerization initiator (B) is coated on the display surface of the liquid crystal display unit 1 and the protective plate 2. On the surface of the face of the light shielding part 4 .

[0185] Here, like the first embodiment, in the present invention, the second cured material layer 14 is laminated between the liquid crystal display unit 1 and the protective plate 2 in the form of a linearly extending layer or a dot-like scattered layer, thereby forming In order to separate the inner area and the outer area of ​​the filling chamber 17 filled with the first curable resin composition, at least a part of the partition wall is provided with a communicating ...

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Abstract

Provided is a method for producing an image display device that is an optical member having excellent productivity and being not susceptible to warping of a substrate, wherein: a second curable resin composition, which exhibits fluidity in an uncured state, is applied to a liquid crystal display unit and/or a protective plate; cured product layers obtained by curing the composition are laminated in the form of lines or dots between the liquid crystal display unit and the protective plate, thereby forming a partition wall between a region that is filled with a first curable resin composition and a region that is not filled with the first curable resin composition; and the partition wall is at least partially provided with a communication part between the two regions. Also provided is a curable resin composition which is used in the method for producing an image display device.

Description

technical field [0001] This invention relates to the method of manufacturing an optical member by bonding the optical base material which has a light-shielding part, and another optical base material, and curable resin composition used for this method. Background technique [0002] In recent years, display devices in which a touch panel is bonded to a display screen of a display device such as a liquid crystal display, a plasma display, or an organic electroluminescent (EL) display to enable screen input have been widely used. This touch panel has a structure in which a glass plate or a resin film formed with a transparent electrode is bonded facing each other with a small gap, and a transparent protective plate made of glass or resin is bonded to the touch surface as necessary. [0003] There is a technology of using a double-sided adhesive sheet for bonding a glass plate or film on which a transparent electrode is formed in a touch panel and a transparent protective plate ...

Claims

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Application Information

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IPC IPC(8): G02F1/1333C08F290/00G09F9/00
CPCC08F290/00G02F1/1333G09F9/00C08F2/50C08F220/1802
Inventor 水口贵文本桥隼
Owner NIPPON KAYAKU CO LTD
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