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Radiation-sensitive resin composition for spacer, spacer and method for forming the same

A technology of curable resins and compositions, applied in nonlinear optics, instruments, optics, etc., can solve the problems of difficult control of sintering conditions, disordered box gaps, and pollution of ovens, etc., and achieve excellent compressive strength, excellent friction resistance, and good The effect of molten shapes

Active Publication Date: 2008-04-02
JSR CORPORATIOON
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Conventionally, spacer particles such as glass spheres and plastic spheres having a predetermined particle size have been used in liquid crystal display elements to keep the distance between two transparent substrates constant. Since spacer particles are scattered randomly on transparent substrates such as glass substrates, if there are spacer particles in the pixel formation region, the reflection phenomenon of spacer particles will occur, or the incident light will be scattered, and the contrast of the liquid crystal display element will decrease.
[0013] In addition, the above-mentioned interlayer insulating film and microlens have a problem in process management: that is, in the development process for forming these, even if the development time exceeds the optimum time, the developer may penetrate between the pattern and the substrate. It is easy to peel off, so the development time must be strictly controlled
In addition, in color liquid crystal display elements, such as STN (Super Twisted Nematic, Super Twisted Nematic) or TFT (ThinFilm Transister) color liquid crystal display elements, in order to keep the cell gap of the liquid crystal layer uniform, spherical spacers are scattered The protective film is bonded to the panel, and then the sheet is thermocompressed to seal the liquid crystal cell. However, there is a problem in this case that the part where the spacer exists can be seen under such heat and pressure. The protective film is sunken, and the gap between the boxes is disordered
[0022] Moreover, with the increase in the size of panel substrates in recent years, there are problems that sublimates are generated during the sintering process in which the protective film is formed from the thermosetting composition, accumulate inside the sintering furnace, contaminate the oven, make it difficult to control the sintering conditions, or accumulate The sublimated matter adheres to the panel substrate and causes contamination, causing problems such as poor display
[0023] In the formation of a protective film for color filters, it is suitable to use a curable resin composition that has the advantage of being able to easily form a protective film with good surface hardness. In addition to general performance requirements, it is also a material that can meet various new high-demand protective films as described above, and has excellent storage stability as a composition

Method used

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  • Radiation-sensitive resin composition for spacer, spacer and method for forming the same
  • Radiation-sensitive resin composition for spacer, spacer and method for forming the same
  • Radiation-sensitive resin composition for spacer, spacer and method for forming the same

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Embodiment

[0423] Hereinafter, the present invention will be more specifically described by illustrating synthesis examples and examples, but the present invention is not limited to the following examples.

[0424] The gel permeation chromatography of the polymers synthesized in the following polymer synthesis examples was measured under the following conditions, and the polystyrene-equivalent weight average molecular weight (Mw) and number average molecular weight (Mn) were determined.

[0425] Device: GPC-101 (manufactured by Showa Denko Co., Ltd.)

[0426] Column: Connect GPC-KF-801, GPC-KF-802, GPC-KF-803, and GPC-KF-804 (manufactured by Showa Denko Co., Ltd.) in series

[0427] Mobile phase: tetrahydrofuran containing 0.5% by weight phosphoric acid

[0428] (1) Preparation and evaluation of the first composition

Synthetic example 1

[0431] Add 2 parts by weight of 2,2'-azobisisobutyronitrile, 3 parts by weight of the compound represented by the above formula (T-1) as a molecular weight control agent and diethylene glycol diethylene glycol in a flask with a condenser tube and a stirrer. 200 parts by weight of methyl ether, then add 20 parts by weight of styrene, 17 parts by weight of methacrylic acid, tricyclic [5.2.1.0 2，6 ] 18 parts by weight of decane-8-yl methacrylate and 45 parts by weight of glycidyl methacrylate, after nitrogen replacement, while stirring slowly, the temperature of the reaction solution was raised to 80°C, and the temperature was kept for polymerization for 6 hours . Then, the temperature of the reaction solution was raised to 100° C., 1 part by weight of 2,2′-azobisisobutyronitrile was added, followed by polymerization for 1 hour, thereby obtaining the polymers (A-1) shown in Table 1. solution. The Mw of the obtained polymer (A-1) was 11,000, and Mw / Mn was 1.4. In addition, the ...

Synthetic example 2～20

[0433] The same procedure as in Synthesis Example 1 was performed except that the compound represented by the above formula (T-1) as a molecular weight control agent was replaced with a substance of the type shown in Table 1 in the amount shown in Table 1. Table 1 shows the Mw and Mw / Mn of the polymers obtained in each synthesis example and the solid content concentration of each polymer solution.

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Abstract

The invention relates to a solidified resin composite, a method for forming a solidified membrane and a solidified membrane. The invention comprises a polymer which is polymerized through an actively free radical polymerization in the effect of a particular thiocarbonyl sulphur compound. The ratio (Mw / Mn) of the weight average molecular weight (Mw) of the polymer (expressed in terms of polystyrene) to the number average molecular weight (Mn) measured by gel permeation chromatography is1.7 or less than 1.7, the polystyrene also includes carboxyl, epoxy ethyl or oxygen heterocycle butyl.

Description

technical field [0001] The present invention relates to a curable resin composition containing a specific resin, a method for forming a cured film such as a spacer, an interlayer insulating film, a microlens, or a protective film using the composition, and a cured film. Background technique [0002] <Prior Art Regarding Spacers> [0003] Conventionally, spacer particles such as glass spheres and plastic spheres having a predetermined particle size have been used in liquid crystal display elements to keep the distance between two transparent substrates constant. Since spacer particles are scattered randomly on transparent substrates such as glass substrates, if spacer particles are present in the pixel formation region, the reflection phenomenon of spacer particles will occur, or the incident light will be scattered, and the contrast of the liquid crystal display element will decrease. [0004] Therefore, in order to solve these problems, a method of forming a spacer b...

Claims

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Application Information

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IPC IPC(8): C08L101/06C08F2/44G02F1/1339G02B3/00
Inventor 梶田彻河本达庆松本龙
Owner JSR CORPORATIOON
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