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Photosensitive resin composition, cured film, element equipped with cured film, organic EL display device equipped with cured film, cured film production method, and organic EL display device production method

A technology of photosensitive resin and composition, which is applied in the manufacture of semiconductor/solid-state devices, originals for photomechanical processing, exposure devices for photo-plate making process, etc. It can solve the problems that the cured film cannot be obtained, and achieve excellent half-tone characteristics, The effect of high sensitivity and shortened process time

Pending Publication Date: 2019-11-15
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, with respect to these conventionally known colorant-containing negative photosensitive resin compositions, even if a halftone photomask is used to form a pattern having a step shape after development, the shape changes during heat treatment, and there is The problem that the cured film with the desired step shape cannot be obtained

Method used

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  • Photosensitive resin composition, cured film, element equipped with cured film, organic EL display device equipped with cured film, cured film production method, and organic EL display device production method
  • Photosensitive resin composition, cured film, element equipped with cured film, organic EL display device equipped with cured film, cured film production method, and organic EL display device production method
  • Photosensitive resin composition, cured film, element equipped with cured film, organic EL display device equipped with cured film, cured film production method, and organic EL display device production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0215] Hereinafter, although an Example etc. are given and this invention is demonstrated, this invention is not limited to these examples. In addition, the evaluation of the photosensitive resin composition in an Example was performed by the following method.

[0216] (1) Determination of average molecular weight

[0217] Regarding the molecular weights of the resins (P1) to (P4) used in Examples, N-methyl-2-pyrrolidone ( Hereinafter, it is called NMP) and measured as an eluting solvent, and calculated the number average molecular weight (Mn) in terms of polystyrene.

[0218] (2) Film thickness measurement

[0219] Using a surface roughness and profile shape measuring machine (SURFCOM1400D; manufactured by Tokyo Seiki Co., Ltd.), the measurement magnification was 10,000 times, the measurement length was 1.0 mm, and the measurement speed was 0.30 mm / s. Cured film thickness.

[0220] (3) Sensitivity evaluation

[0221] The photosensitive resin composition of each embodimen...

Synthetic example 1

[0263] Synthesis Example 1 Synthesis of Hydroxyl-Containing Diamine Compounds

[0264] Dissolve 18.3 g (0.05 mol) of 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane (hereinafter referred to as BAHF) in 100 mL of acetone, 17.4 g (0.3 mol) of propylene oxide , cooled to -15°C. A solution obtained by dissolving 20.4 g (0.11 mol) of 3-nitrobenzoyl chloride in 100 mL of acetone was added dropwise thereto. After completion of the dropwise addition, the reaction was carried out at -15°C for 4 hours, and then returned to room temperature. The precipitated white solid was filtered and vacuum-dried at 50°C.

[0265] 30 g of the solid was put into a 300 mL stainless steel autoclave, dispersed in 250 mL of methyl cellosolve, and 2 g of 5% palladium-carbon was added. Hydrogen was introduced thereinto with a balloon, and the reduction reaction was carried out at room temperature. After about 2 hours, confirm that the balloon does not continue to deflate, and the reaction ends. After ...

preparation example 1

[0314] 33.3 g of (P1) obtained in Synthesis Example 2 as an alkali-soluble resin and 117 g of MBA as a solvent were weighed and mixed to obtain a resin solution. Weigh 33.3g of SOLSPERSE 20000 as a dispersant, 828g of MBA as a solvent, and 100g of Irgaphor Black S0100CF as a colorant, mix them into the above resin solution, and use a high-speed disperser (homodisperser type 2.5; PRIMIX Co., Ltd. ) system), stirred for 20 minutes to obtain a predispersion. To the Ultra Apex Mill (UAM- 015; the pre-dispersion obtained by supplying in Kotobuki Kogyo Co., Ltd.) was treated for 3 hours under the condition that the peripheral speed of the rotor was 7.0 m / s, and the obtained solid content concentration was 15% by mass, coloring agent / resin=60 / 40 (mass ratio) of the pigment dispersion (Dsp-1).

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Abstract

The present invention provides a photosensitive resin composition that exhibits a light blocking effect, is of high sensitivity, and provides excellent halftone characteristics. The photosensitive resin composition comprises (A) an alkali-soluble resin, (B) a radical polymerizable compound, (C) a photopolymerization initiator, and (D) a colorant, wherein: the alkali-soluble resin (A) contains a polyimide, a polyimide precursor, a polybenzooxazole precursor and / or a copolymer thereof; and the radical polymerizable compound (B) contains (B-1) a (meth)acrylic compound that has two or more functional groups and that exhibits a glass transition temperature of at least 150 degrees centigrade when used as a homopolymer and (B-2) a (meth)acrylic compound that has four or more functional groups andthat is other than (B-1).

Description

technical field [0001] The present invention relates to a photosensitive resin composition, a cured film using the same, an element provided with the cured film, an organic EL display device provided with the cured film, a method for producing the cured film, and a method for producing the organic EL display device. Background technique [0002] In recent years, a large number of products using organic electroluminescent (hereinafter referred to as "EL") display devices have been developed for display devices having thin displays such as smartphones, tablet PCs, and televisions. [0003] An organic EL light-emitting element operates by applying a voltage between opposing first and second electrodes or by flowing a current. At this time, the electric field tends to concentrate on the edge portion of the electrode with a small curvature radius, and therefore, undesirable phenomena such as dielectric breakdown and leakage current easily occur at the edge portion. [0004] Gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/027C08F2/48G03F1/00G03F7/004G03F7/037G03F7/20H01L51/50H01L51/52H01L51/56H05B33/10H05B33/12H05B33/22
CPCC08F2/48H05B33/10H05B33/12H05B33/22G03F7/027G03F7/037C09D4/06C08F283/04C08K5/0041C08K5/0025C08K3/04H10K59/122C08F222/102C08L79/08C08L79/00C08F283/045C08F220/04C08F2/50G03F7/004G03F7/028G03F7/20G03F7/105G03F1/00H05B33/02H10K50/00C08F2810/00C08L33/10C08L57/00C08L2203/16C08L2203/20
Inventor 龟本聪谷垣勇刚三好一登
Owner TORAY IND INC
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