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Blue colored composition for color filter, color filter and color display

A technology of coloring composition and color filter, which is applied in the direction of photographic filters, instruments, filters, etc., and can solve the problems of poor solvent solubility, lack of heat resistance and light resistance, etc.

Active Publication Date: 2011-06-01
TOYO INK SC HOLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the salt-formation product disclosed here has poor solvent solubility and does not have sufficient heat resistance and light resistance

Method used

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  • Blue colored composition for color filter, color filter and color display
  • Blue colored composition for color filter, color filter and color display
  • Blue colored composition for color filter, color filter and color display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A

[0245] Hereinafter, this form is demonstrated based on an Example, However, this form is not limited to this. In addition, "parts" means "parts by mass" unless otherwise specified. In addition, the weight average molecular weight (Mw) of an acrylic resin is a weight average molecular weight (Mw) in conversion of polystyrene. The weight-average molecular weight (Mw) was measured using a TSKgel column (manufactured by Tosoh) and a gel permeation chromatography apparatus (manufactured by Tosoh, HLC-8120GPC) equipped with an RI detector. In addition, tetrahydrofuran (THF) was used as a developing solvent.

[0246] First, from the acrylic resin solution, micronized pigment, salt-forming product (A), xanthene-based compound, pigment dispersion, resin solution containing salt-forming product, and resin solution containing xanthene-based compound used in Examples and Comparative Examples , the production methods of the red resist material and the green resist material will be descri...

Embodiment 1A

[0361] (Example 1A: Coloring composition (DB-1A))

[0362] After stirring the following mixture uniformly, it filtered using the filter of 5.0 micrometers, and obtained the mixed coloring composition (DB-1A).

[0363] Resin solution containing salt-forming products (DA-1A): 2.2 parts

[0364] Pigment dispersion (DP-1A): 8.8 parts

[0365] Acrylic resin solution 1A: 40.0 parts

[0366] Propylene glycol monomethyl ether acetate (PGMAC): 49.0 parts

Embodiment 2A～1A and comparative example 1A and 2B

[0367] (Examples 2A to 1A and Comparative Examples 1A and 2B: Coloring Compositions (DB-2A) to (DB-13A))

[0368] Same as the coloring composition (DB-1A) except that the salt-forming product-containing resin solution (DA-1) was changed to the salt-forming product-containing resin solution or the xanthene-based compound-containing resin solution shown in Table 3. Coloring compositions (DB-2A) to (DB-13A) were prepared accordingly.

[0369] (Coating film foreign matter test)

[0370] Easiness of occurrence of coating unevenness due to foreign matter was evaluated for the above-mentioned coloring composition. Specifically, first, the coloring composition was coated on a transparent substrate so that the dry film thickness became about 2.0 μm, and it was heated in an oven at 230° C. for 20 minutes to obtain a test substrate. Next, the surface of each test substrate was observed using a metal microscope "BX60" manufactured by Olympus-systems. Here, the magnification is 500 time...

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PUM

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Abstract

The invention provides a blue colored composition for a color filter, a color filter and a color display, which are used during the manufacture of color filters of high color characteristic, heat resistance, light resistance and solvent resistance.The blue colored composition for color filters comprises a binder resin and a colorant.The colorant comprises a blue pigment and a salt forming product.The salt forming product is formed by a xanthene series acid dye and a compound with cationic groups.

Description

technical field [0001] The present invention relates to a blue coloring composition that can be used in the production of color filters for color displays and color imaging elements, a color filter having filter segments formed of the blue coloring composition, and a color filter containing the same color display. In addition, this blue coloring composition can be used not only for the production of blue filter sections but also for the production of cyan filter sections. Background technique [0002] A liquid crystal display has, for example, a structure in which a liquid crystal layer is interposed between a pair of polarizers. In such a liquid crystal display, the orientation of liquid crystal molecules is used to change the state of polarized light transmitted through one polarizer, thereby controlling the amount of light transmitted through the other polarizer. [0003] The display modes of liquid crystal displays include VA (Vertically Aligned, vertically aligned) mo...

Claims

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Application Information

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IPC IPC(8): G03F7/004G03F7/032G02B5/20G02F1/1335G03B11/04H01L27/146H01L51/52
CPCG03F7/004G03F7/0042G03F7/0045G03F7/027G02B5/20G02B5/201
Inventor 斋藤悠生吉泽俊启伊藤理人尾立嘉岳北村健一小久保奈津子小山美沙绪
Owner TOYO INK SC HOLD CO LTD
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