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Blue photosensitive resin composition, blue color filter and display device comprising the same

A technology of photosensitive resin and display elements, which is applied in the direction of photosensitive materials, optics, instruments, etc. used in optomechanical equipment, can solve the problems of light and dark contrast and visibility reduction, and achieve the effect of thin thickness

Active Publication Date: 2017-10-20
DONGWOO FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In organic light-emitting elements, in order to solve the problem of lowering the contrast between light and dark and visibility due to external light reflection, polarizers are used

Method used

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  • Blue photosensitive resin composition, blue color filter and display device comprising the same
  • Blue photosensitive resin composition, blue color filter and display device comprising the same
  • Blue photosensitive resin composition, blue color filter and display device comprising the same

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0173] Synthesis example 1. Synthesis of alkali-soluble resin

[0174] In a 1000mL flask equipped with a stirrer, a thermometer, a reflux condenser, a dropping funnel, and a nitrogen introduction tube, 120 parts by weight of propylene glycol monomethyl ether acetate, 80 parts by weight of propylene glycol monomethyl ether, 2 parts by weight of AIBN, Nitrogen substitution was carried out with 13 parts by weight of acrylic acid, 10 parts by weight of benzyl methacrylate, 57 parts by weight of styrene, 20 parts by weight of methyl methacrylate, and 3 parts by weight of n-dodecylmercaptan. Then, stirring was performed to raise the temperature of the reaction liquid to 110° C., and after the temperature was raised, it was allowed to react for 6 hours.

[0175] The solid content acid value of the alkali-soluble resin produced in this way was 100.2 mgKOH / g, and the weight average molecular weight Mw measured by GPC was about 15110.

[0176]

Embodiment 1～6 and comparative example 1～2

[0178] The cyan photosensitive resin compositions of Examples 1-6 and Comparative Examples 1-2 were manufactured with the composition of following Table 1.

[0179] [Table 1] (Unit: parts by weight)

[0180]

[0181] (A-1) Cyan pigment: C.I. Pigment Blue 15:6

[0182] (A-2) Cyan pigment: C.I. Pigment Blue 15:4

[0183] (A-3) Violet pigment: C.I. Pigment Violet 23

[0184] (A-4) Black pigment: PBk7: Carbon-black (MA-8, Mitsubishi Corporation)

[0185] (B) Alkali-soluble resin: Alkali-soluble resin produced in Synthesis Example 1

[0186] (C) Photopolymerizable compound: dipentaerythritol hexaacrylate (KAYARD DPHA; manufactured by Nippon Kayaku Co., Ltd.)

[0187] (D) Photopolymerization initiator: 2-O-benzoyl oxime-1-[4-(phenylthio)phenyl]-1,2-octanedione (OXE-01; manufactured by BASF)

[0188] (E) Solvent: Propylene Glycol Monomethyl Ether Acetate

experiment example 1

[0189] Experimental example 1. Production of color filter and measurement of spectral transmittance

[0190] The cyan photosensitive resin compositions of Examples 1 to 6 and Comparative Examples 1 to 2 were each applied by spin coating on a 2-inch glass substrate (manufactured by Corning Incorporated, "EAGLE XG"), and placed on a hot plate. , maintained at a temperature of 100° C. for 3 minutes to form a thin film.

[0191] Then, a test photomask having a pattern with a stepwise change in transmittance in the range of 1 to 100% and an exposed portion pattern of 3×3 cm was placed on the above-mentioned film, and the distance between the test photomask and the test photomask was 100 μm, and ultraviolet rays were irradiated. . At this time, the ultraviolet light uses a 1kW high-pressure mercury lamp containing all g, h and i lines, at a rate of 100mJ / cm 2 illuminance without the use of special optical filters.

[0192] The film irradiated with the above-mentioned ultraviole...

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Abstract

The invention relates to a blue photosensitive resin composition, a blue color filter and a display device comprising the same. The blue photosensitive resin composition contains a blue colorant, an alkali soluble resin, a photopolymerized compound, a polymerization initiator and a solvent. The blue colorant contains a blue pigment and a black pigment. When the blue photosensitive resin composition is used for forming a cured film having a thickness of 3 [mu]m, the spectral transmission factor at 425 to 480 nm is greater than 60% and smaller than 75% and the spectral transmission factor at 530 to 780 nm is greater than 0% and smaller than 20%.

Description

technical field [0001] The present invention relates to a cyan photosensitive resin composition, a cyan color filter and a display element comprising the same, and more specifically, to a spectrum at 425 to 480 nm when the cyan photosensitive resin composition is formed into a cured film having a thickness of 3 μm A cyan photosensitive resin composition having a transmittance of 60% to less than 75%, and a spectral transmittance of 530 to 780 nm of more than 0% to less than 20%, a cyan color filter and a display element comprising the same. Background technique [0002] As a next-generation display technology, flexible display elements have recently attracted attention. Among technologies for manufacturing displays using plastic substrates having bending properties, various technologies such as liquid crystal display devices, organic light emitting elements, and electronic paper (E-Paper) technologies have been effectively utilized in the field of flexible display elements. ...

Claims

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Application Information

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IPC IPC(8): G03F7/027G03F7/032G03F7/004G02B5/20
CPCG02B5/20G03F7/004G03F7/027G03F7/032
Inventor 金正植康德基金亨柱
Owner DONGWOO FINE CHEM CO LTD
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