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Coloring composition for color filter and color filter

A coloring composition and color filter technology, applied in the field of color filters, can solve problems such as difficulty in heat resistance, deterioration of heat resistance, failure to obtain satisfactory results, etc.

Inactive Publication Date: 2008-12-10
TOYO INK SC HOLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In these methods, it can be seen that the pigment derivative interacts with the resin component in the varnish to impart dispersion stability, but since various resins are used in the coloring composition for color filters, not only the pigment derivative It often works effectively with the resin in the coloring composition, but the actual situation is that except for a part of the resin, no satisfactory effect can be obtained
In addition, pigment derivatives tend to have lower heat resistance than pigments, and it may be a problem to use a coloring composition containing a pigment derivative whose heat resistance has deteriorated in the production of a color filter.
[0010] That is to say, in the prior art, it is difficult to simultaneously ensure the good fluidity of the coloring composition and maintain the heat resistance after the coating film is formed.

Method used

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  • Coloring composition for color filter and color filter
  • Coloring composition for color filter and color filter
  • Coloring composition for color filter and color filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0237] Stir and mix the mixture with the following composition evenly, disperse it with a sand mill for 5 hours with glass beads with a diameter of 1 mm, and filter with a filter with a pore size of 5 μm to prepare a copper phthalocyanine dispersion.

[0238] Mixture I:

[0239] ε-type copper phthalocyanine pigment (C.I. Pigment Blue 15:4) 10.0 parts

[0240] ("Heliogen Puru-L-6700F" manufactured by BASF)

[0241] Phthalocyanine pigment derivative (derivative 48) 1.0 parts

[0242] Phosphate-based pigment dispersant 1.0 parts

[0243] ("BYK111" manufactured by Pickchemy Co., Ltd.)

[0244] Acrylic resin solution 40.0 parts

[0245] Cyclohexanone 48.0 parts

[0246] Subsequently, the mixture II having the following composition was uniformly mixed by stirring and mixing, and then filtered with a 1 micron filter to obtain a blue resist material.

[0247] Mixture II:

[0248] Copper phthalocyanine dispersion 45.0 parts

[0249] Acrylic resin solution 15.0 parts

[0250] Tri...

Embodiment 2～5 and comparative example 1～6

[0256] Pigments, pigment derivatives, phosphate-based pigment dispersants, resins, and monomers were blended according to the proportions (weight ratios) shown in Table 1, and the resist materials of various colors were prepared in the same manner as in Example 1.

[0257] Table 1

[0258]

[0259] Note)

[0260] ・Pigment for blue: "Heliogen Blue One L-6700F" manufactured by BASF

[0261] ・Pigment derivatives for blue: Phthalocyanine pigment derivatives (derivative 48)

[0262] ・Pigment for purple: Dioxazine purple pigment (C.I. Pigment Violet 23)

[0263] ("Leonogen Bioretto RL" manufactured by Toyo Ink Manufacturing Co., Ltd.)

[0264] ・Pigment derivatives for violet: Dioxazine pigment derivatives (derivative 49)

[0265] Pigment for red: dipyrroleketopyrrole pigment (C.I. Pigment Red 254) 8.33 parts

[0266] ("ィルガフォ一レッド B-CF" manufactured by Ciba Geigy Co., Ltd.)

[0267] Anthraquinone pigment (C.I. Pigment Red 177) 1.33 parts

[0268] (Ciba Geigy Co., Ltd. “Cromo...

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Abstract

A color filter has a filter segment. The filter segment is formed by means of a color composition for color filter. The color composition for color filter includes: a phosphate-ester series pigment dispersant; a pigment derivatives having a certain alkali-base; at least one alkali-base-containing derivatives selected from pigment derivatives, a Anthraquinone derivatives and a triazine derivatives; a pigment carrier; and a pigment.

Description

technical field [0001] The present invention relates to a coloring composition for a color filter used in the production of a color filter, and a color filter formed using the same. The color filter is used for a color liquid crystal display device, a color pickup tube element, and the like. Background technique [0002] The color filter is formed by arranging two or more fine strip-shaped color filter elements of different hues in parallel or crosswise on the surface of a transparent substrate such as glass, or by arranging the fine color filter elements in a certain horizontal and vertical arrangement. And formed. The color filter elements are as fine as several micrometers to hundreds of micrometers, and each hue is integrally arranged in a predetermined arrangement. [0003] Generally, in a color liquid crystal display device, a transparent electrode for driving liquid crystals on a color filter is formed by evaporation or sputtering, and an alignment film for aligning ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/20C09B67/00C09B51/00
Inventor 砂原建朗
Owner TOYO INK SC HOLD CO LTD