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Coloring photosensitive composition, color filter and liquid crystal display

A technology of photosensitive composition and polymeric compound, which is applied in the direction of instruments, optics, optical filters, etc., can solve the problems of uneven display device, narrow developing latitude, poor stability and so on, and achieve large developing latitude, Excellent curability and excellent adhesion

Inactive Publication Date: 2010-03-31
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, phthalocyanines having a central metal other than copper are poor in dispersion stability and stability over time, so a large amount of binder is required for dispersion, and the development latitude of the colored photosensitive composition is narrow, which may result in a display Unevenness occurs on the device

Method used

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  • Coloring photosensitive composition, color filter and liquid crystal display
  • Coloring photosensitive composition, color filter and liquid crystal display
  • Coloring photosensitive composition, color filter and liquid crystal display

Examples

Experimental program
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Embodiment

[0289] Hereinafter, although an Example demonstrates this invention more concretely, this invention is not limited to a following Example. In addition, unless otherwise specified, "%" and "part" represent a mass basis.

[0290]Synthesis of Zinc Halide Phthalocyanine Pigments

[0291] Zinc phthalocyanine is produced from phthalonitrile and zinc chloride.

[0292] Halogenation was carried out as follows: 3.1 parts of sulfuryl chloride, 3.7 parts of anhydrous aluminum chloride, 0.46 parts of sodium chloride, and 1 part of zinc phthalocyanine were mixed at 40° C., and 2.2 parts of bromine were dropped thereinto. React at 80° C. for 15 hours, then pour the reaction mixture into water, and part of the crude zinc bromide phthalocyanine pigment is precipitated. This aqueous slurry was filtered, washed with 80° C. hot water, and dried at 90° C. to obtain 2.6 parts of a refined partially-brominated zinc phthalocyanine crude pigment.

[0293] 1 part of the partially brominated zinc ph...

Synthetic example 1

[0296] Synthesis Example 1: Synthesis of Resin (i-1)

[0297] 6.4 g of n-octanoic acid, 200 g of ε-caprolactone, and 5 g of tetrabutoxytitanium (IV) were mixed, heated at 160° C. for 8 hours, and then cooled to room temperature to obtain a polyester resin (i-1).

[0298] The flow is as follows.

[0299]

Synthetic example 2

[0300] Synthesis Example 2: Synthesis of Resin (J-1)

[0301] 10 g of polyethyleneimine (SP-018, number average molecular weight 1,800, manufactured by Nippon Shokubai Co., Ltd.) and 100 g of polyester resin (i-1) were mixed and heated at 120°C for 3 hours to obtain intermediate body (J-1B). Then, it stood to cool to 65 degreeC, 200 g of propylene glycol 1-monomethyl ether 2-acetates (hereinafter referred to as PGMEA) containing 3.8 g of succinic anhydrides were added gradually, and it stirred for 2 hours. Then, PGMEA was further added, and the 10 mass % PGMEA solution of resin (J-1) was obtained. Resin (J-1) has a side chain derived from polyester resin (i-1) and a carboxyl group derived from succinic anhydride.

[0302] The synthesis scheme is shown below.

[0303]

[0304] Preparation of Dispersion Liquid of Green Pigment Halide Zinc Phthalocyanine

[0305] 14.9 parts of the above-obtained partially brominated zinc phthalocyanine pigment (referred to as PG58), 7.2 p...

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Abstract

The coloring photosensitive composition of the invention has superior immobility for a formed coloring pattern even for high pigment density, great developing tolerance, suppresses pattern notch of development, and is useful for formation of the coloring pattern of a color filter. Furthermore, the invention also obtains a color filter with high color purity, high contrast, and good color performance, and a liquid crystal display with high brightness and clear image. The coloring photosensitive composition comprises (A) halogenated zinc phthalocyanine pigment, (B) a yellow pigment, (C) a polymer compound, (D) adhesive resin and (E) photopolymerization initiator, wherein the polymer compound comprises a (C-1) polymer compound with two polymer groups in one molecule and a (C-2) polymer compound with five or six polymer group in one molecule, and the content of the (C-1) polymer compound with two polymer groups in one molecule accounts for 15-40% of that of total quantity of the polymer compound by mass.

Description

technical field [0001] The present invention relates to a colored photosensitive composition, a color filter (color filter) manufactured using the composition, and a liquid crystal display device provided with the color filter. Background technique [0002] A color filter is an indispensable component of a liquid crystal display (liquid crystal display). Compared with the display device using CRT (Cathode Ray Tube), liquid crystal display is small, can realize power saving, and with the advancement of technology, its performance is equal to or higher, so it is used as a television (television) screen, Computer (personal computer) screens and other display devices are gradually replacing CRT. [0003] In recent years, the development of liquid crystal displays has expanded from the use of computers and monitors with small screens to the use of TVs with large screens and high image quality. [0004] In TV applications, higher image quality is required compared with conventio...

Claims

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Application Information

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IPC IPC(8): G03F7/004G03F7/028G02B5/20G02F1/1335
CPCG02F1/133514G03F7/0007G03F7/032Y10S430/106
Inventor 冈部孝太郎真崎庆央近藤俊一中村秀之
Owner FUJIFILM CORP
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