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Liquid crystal display device, positive radiation-sensitive composition, interlayer insulating film for liquid crystal display device and method for forming the same

A liquid crystal display element, interlayer insulating film technology, applied in nonlinear optics, photosensitive materials for opto-mechanical equipment, optics, etc. drop and other problems, to achieve the effects of excellent storage stability, suppression of deformation, and high voltage retention

Active Publication Date: 2011-11-16
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the content of the highly reactive carboxyl group and epoxy group in the polymer increases, the storage stability of the radiation-sensitive composition deteriorates and the productivity of the liquid crystal display device decreases.

Method used

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  • Liquid crystal display device, positive radiation-sensitive composition, interlayer insulating film for liquid crystal display device and method for forming the same
  • Liquid crystal display device, positive radiation-sensitive composition, interlayer insulating film for liquid crystal display device and method for forming the same
  • Liquid crystal display device, positive radiation-sensitive composition, interlayer insulating film for liquid crystal display device and method for forming the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0330] The present invention will be described in detail below based on examples, but the present invention should not be limitedly interpreted based on the description of the examples.

[0331] Mw and Mn of the polymer were measured by GPC under the following conditions.

[0332] Device: GPC-101 (manufactured by Showa Denko)

[0333] Column: Combination of GPC-KF-801, GPC-KF-802, GPC-KF-803 and GPC-KF-804

[0334] Mobile phase: tetrahydrofuran

[0335] Column temperature: 40°C

[0336] Flow rate: 1.0mL / min

[0337] Sample concentration: 1.0% by mass

[0338] Sample injection volume: 100μL

[0339] Detector: Differential refractometer

[0340] Standard material: monodisperse polystyrene

[0341]

[0342] [Preparation example 1]

[0343] Each liquid crystal compound (25% of the liquid crystal compound represented by the above formula (a), 30% by mass of the liquid crystal compound represented by the formula (b), 30% by mass of the liquid crystal compound represented b...

Synthetic example 1

[0351] Into a flask equipped with a condenser and a stirrer, 7 parts by mass of 2,2'-azobis(2,4-dimethylvaleronitrile) and 200 parts by mass of diethylene glycol ethyl methyl ether were added. Next, add 5 parts by mass of methacrylic acid, 40 parts by mass of 1-ethoxyethyl methacrylate, 5 parts by mass of styrene, 40 parts by mass of glycidyl methacrylate, 10 parts by mass of 2-hydroxyl methacrylate Ethyl ester and 3 parts by mass of α-methylstyrene dimer were replaced with nitrogen, and then slowly stirred. The temperature of the solution was raised to 70° C., and the temperature was maintained for 5 hours to obtain a polymer solution containing the polymer (A-1). Polystyrene conversion weight average molecular weight (Mw) of polymer (A-1) was 9,000. In addition, the solid content concentration of the polymer solution obtained here was 32.1 mass %.

Synthetic example 2

[0353] In a flask equipped with a condenser tube and a stirrer, 7 parts by mass of 2,2'-azobis(2,4-dimethylvaleronitrile) and 200 parts by mass of diethylene glycol ethyl methyl ether were added. Then add 5 parts by mass of methacrylic acid, 40 parts by mass of tetrahydro-2H-pyran-2-yl methacrylate, 5 parts by mass of styrene, 40 parts by mass of glycidyl methacrylate, 10 parts by mass of methacrylic acid 2-Hydroxyethyl ester and 3 parts by mass of α-methylstyrene dimer were switched with nitrogen, and then slowly stirred. The temperature of the solution was raised to 70°C, and the temperature was maintained for 5 hours to obtain a polymer solution containing the polymer (A-2). Polystyrene conversion weight average molecular weight (Mw) of polymer (A-2) was 9,000. In addition, the solid content concentration of the polymer solution obtained here was 31.3 mass %.

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Abstract

The invention relates to a liquid crystal display device, a positive radiation-sensitive composition, an interlayer insulating film for liquid crystal display device and methods for forming the same. An object of the invention is to provide a liquid crystal display element having a high voltage holding ratio, and being provided with an interlayer insulating film having superior heat resistance and light resistance, and to also provide a positive type radiation sensitive composition that is superior in storage stability, and is suited for formation of the interlayer insulating film. The liquid crystal display element includes: two substrates disposed oppositely, an interlayer insulating film laminated on the inner face side of at least one of the substrates, and a liquid crystal layer being provided between the substrates, and being formed from a polymerizable liquid crystal composition, in which a resin constituting the interlayer insulating film has a crosslinking moiety of a polymer represented by the following formula (1).

Description

technical field [0001] The present invention relates to a liquid crystal display element, a positive type radiation-sensitive composition, an interlayer insulating film for a liquid crystal display element and a forming method thereof. Background technique [0002] In recent years, liquid crystal display devices have been widely used as television receivers, monitor devices for personal computers, and the like. A liquid crystal display device used for these applications is required to have a wide viewing angle so that a display screen can be viewed from all directions. As a liquid crystal display device capable of obtaining a wide viewing angle, for example, a device using a liquid crystal display element of the MVA (Multi-Domain Vertical Alignment) system is known. However, this liquid crystal display device still has the problem that the response time of the liquid crystal is not short enough, and it is easy to cause alignment disorder due to finger pressing and the like....

Claims

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Application Information

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IPC IPC(8): G02F1/1333G03F7/00G03F7/039
CPCC08L33/04C08L101/02G02F1/13G03F7/004G03F7/039
Inventor 一户大吾中山美加
Owner JSR CORPORATIOON
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