Positive photosensitive resin composition

A technology of photosensitive resin and composition, applied in optics, optomechanical equipment, instruments, etc., can solve problems such as heat resistance, difficulty in continuous use of display devices, inability to obtain light-shielding properties, etc.

Active Publication Date: 2004-10-13
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since ordinary heat-sensitive materials composed of a developer and a color-forming substance have a coloring temperature of 100°C to 180°C, they have heat resistance in the final heat treatment (temperature usually not lower than 200°C) after the pattern formation of the coating film. sexual problems
That is, heat-sensitive materials colored by heating are discolored by final heat treatment, so that sufficient light-shielding properties cannot be obtained
In addition, the black color formed by using a general heat-sensitive material containing a developer and a color-forming substance has a problem in light fastness after the final heat treatment, that is, after a long period of irradiation with visible light and UV light, the black color may Fading, so it is difficult to continuously use black resin as a black matrix for display devices

Method used

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  • Positive photosensitive resin composition
  • Positive photosensitive resin composition
  • Positive photosensitive resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0162] In 264g of methyl isobutyl ketone, dissolve 57g (0.6mol) of m-cresol, 38g (0.4mol) of p-cresol, 75.5g (formaldehyde 0.93mol) 37wt% formaldehyde solution and 0.63g (0.005mol) ) of oxalic dianhydride, carried out polycondensation reaction under reflux and stirring state for 4 hours. The product was heated for 3 hours, then the pressure in the flask was reduced to 4000-6666 Pa to remove volatiles. The molten resin was recovered after cooling the mixture to room temperature. The resulting resin was dissolved in ethyl acetate to obtain a resin component concentration of 30% by weight. To this solution, methanol in an amount 1.3 times the weight of the solution and water in an amount 0.9 times the weight of the solution were added, and the resulting mixture was stirred. After the mixture was separated into two layers, the lower layer was recovered, concentrated and dried to obtain a novolac resin.

[0163] To 100 parts by weight of the novolac resin thus obtained, add: 30 ...

Embodiment 2

[0170] In 250 ml of propylene glycol monomethyl ether, 176 g (0.1 mol) of t-butoxystyrene and 5.8 g (0.04 mol) of azobisisobutyronitrile were dissolved, and the mixture was reacted at 75° C. for 4 hours. To the obtained poly-tert-butoxystyrene solution was added 50 g of a 5 wt % sulfuric acid aqueous solution, and a hydrolysis reaction was performed at 100° C. for 3 hours. The reaction product was washed three times with 1000 ml of deionized water, and 500 ml of propylene glycol monomethyl ether acetate was added thereto to exchange the solvent, thereby obtaining an alkali-soluble resin (polyhydroxystyrene) solution.

[0171] The alkali-soluble resin solution thus obtained (corresponding to 100 parts by weight (solid content) of polyhydroxystyrene) is mixed with the following: 30 parts by weight of the diazo compound (H) of quinone, 25 parts by weight of 4,4' , 4 ", 4'-(1,4-phenylene dimethylidene) tetraphenol (absorption maximum: 440nm), 30 parts by weight of Pigment Blue 60 ...

Embodiment 3

[0174] To a solution of 7 parts by weight of 2,2'-azo (2,4-dimethylvaleronitrile) in 200 parts by weight of propylene glycol monomethyl ether acetate, add 10 parts by weight of styrene, 20 parts by weight of Methacrylic acid, 45 parts by weight of glycidyl methacrylate, and 25 parts by weight of dicyclopentanyl methacrylate were mixed slowly after replacing the atmosphere with nitrogen. The solution was kept at the same temperature for 5 hours to obtain an acrylic resin solution.

[0175]The acrylic resin solution thus obtained (corresponding to 100 parts by weight (solid content) of the acrylic resin) was mixed with the following: 25 parts by weight of the diazo compound (G) of the quinone, 25 parts by weight of 4,4 as the thermosensitive compound ', 4 "-methylidene triphenol (absorption maximum: 460nm), 25 parts by weight of Pigment Blue 15:6 (phthalocyanine blue E, absorption maximum: 670nm) and 15 parts by weight of Pigment Blue 60 (indigo, absorption Maximum: 570 nm, 720...

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Abstract

Disclosed is a positive-type photosensitive resin composition comprising: (a) an alkali-soluble resin; (b) a quinone diazide compound; (c) a heatsensitive compound which colors upon being heated and which shows an absorption maximum at a wavelength of not less than 350 nm and not more than 700 nm; and (d) a compound which does not have an absorption maximum at a wavelength of not less than 350 nm to less than 500 nm, and has an absorption maximum at a wavelength of not less than 500 nm and not more than 750 nm. The composition is preferably used for forming light-blocking separators or black matrices of organic electroluminescent devices and liquid crystal display elements.

Description

technical field [0001] The present invention relates to a positive-type photosensitive resin composition suitable for forming a light-blocking separator, and a black substrate for organic electroluminescence devices and liquid crystal display elements, all of which are used in flat panel displays middle. Background technique [0002] Liquid crystal displays (LCDs) that do not emit light have been sufficiently popularized as flat panel displays. On the other hand, organic electroluminescent devices for self-luminous displays are now being extensively studied due to the availability of high luminance and realization of full-color displays. [0003] The organic electroluminescent device is controlled by applying a voltage or current between the first electrode and the second electrode. When controlling an organic electroluminescent device, since an electric field tends to concentrate at an edge portion of an electrode, which has a small radius of curvature, undesired phenomen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/00G03F7/022G03F7/023G03F7/105
CPCG03F7/0226G03F7/0007G03F7/0233G03F7/105G03F7/022
Inventor 三好一登奥田良治富川真佐夫
Owner TORAY IND INC
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