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Organic pigment nano particle dispersion and preparation method, photo-sensitive resin combination, trans-printing material, filter, liquid display device and ccd device

A technology of liquid crystal display device and photosensitive resin, which is applied in the field of photosensitive resin composition and organic pigment nanoparticles, which can solve the problems of no acquisition, uneven display, display adaptability (decreased display durability, etc.), and achieve time-dependent changes Effects of small size, improved contrast, and excellent display characteristics

Inactive Publication Date: 2007-12-05
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this tends to lead to a decrease in long-term display adaptability (display durability) and occurrence of display unevenness
Among them, the analysis of the causes of display unevenness, one of the most important properties of color filters for liquid crystal display devices, needs to be improved, but no effective means have been obtained so far.
The color filter of the above-mentioned Patent Document 7 cannot solve this problem, and cannot simultaneously improve the high contrast and display unevenness when using the color filter for a liquid crystal display device.

Method used

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  • Organic pigment nano particle dispersion and preparation method, photo-sensitive resin combination, trans-printing material, filter, liquid display device and ccd device
  • Organic pigment nano particle dispersion and preparation method, photo-sensitive resin combination, trans-printing material, filter, liquid display device and ccd device
  • Organic pigment nano particle dispersion and preparation method, photo-sensitive resin combination, trans-printing material, filter, liquid display device and ccd device

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preparation example Construction

[0086] The organic pigments used in the preparation of the organic pigment nanoparticles of the present invention are not particularly limited as long as they can form particles by the reprecipitation method, and may be used alone, or in combination.

[0087] The organic pigment is not limited by the hue, and examples thereof include perylene, perylene, quinacridone, quinacridonequinone, anthraquinone, tribenzopyrenedione, benzimidazolone, disazo condensate, disazo, azo Nitrogen, indanthrene, phthalocyanine, triaryl cation, dioxazine, aminoanthraquinone, diketopyrrolopyrrole, thioindigo, isoindoline, isoindolinone, pyranthrone, or isothrone Violet compound pigments, or mixtures thereof.

[0088] More specifically, perylene compound pigments such as C.I. Pigment Red 190 (C.I. No. 71140), C.I. Pigment Red 224 (C.I. No. 71127), C.I. Pigment Violet 29 (C.I. No. 71129), C.I. Pigment Orange 43 (C.I. No. 71105) ), or C.I. Pigment Red 194 (C.I. No. 71100), C.I. Pigment Violet 19 (C.I...

Embodiment 1

[0605] [Preparation of concentrated pigment solution]

[0606] To 2000 ml of dimethyl sulfoxide, 60.0 ml of sodium methoxide 28% methanol solution, 100 g of pigment C.I. Vinylpyrrolidone, to prepare Pigment Solution A. At the same time, 1800 ml of water containing 20 ml of 1 mol / l hydrochloric acid was separately prepared as a poor solvent.

[0607] At this time, the temperature was controlled at 18° C., and the GK-0222-10 type Ramondostar-Ra manufactured by Fujisawa Pharmaceutical Co., Ltd. was used to stir 1800 ml of poor solvent at a speed of 500 rpm. NP-KX-500 large-capacity non-pulsation pump injects 500ml of pigment solution A at a flow rate of 80ml / min to form organic pigment particles and make a pigment dispersion. The particle diameter and monodispersity of the pigment dispersion liquid were measured using Natrac UPA-EX150 manufactured by Nikkiso Co., Ltd., and the measured number average particle diameter was 48 nm, and Mv / Mn was 1.44.

[0608] For the pigment dis...

Embodiment 2

[0705] In addition to adding 10g of pigment dispersant A (exemplary compound (7) among the compounds represented by the general formula (D1)) to the pigment solution A of Example 1, other paste concentrated pigments were prepared in the same manner as in Example 1. Liquid B (nanopigment concentration: 35% by mass). The number average particle diameter of the pigment fine particles measured in the same manner as in Example 1 was 38 nm, and the Mv / Mn thereof was 1.38. The sum of the residual alkali metal and alkaline earth metal concentrations of this concentrated pigment solution B was 110 ppm.

[0706] Pigment dispersion composition B was prepared in the same manner as in Example 1 except that concentrated pigment solution B was used instead of concentrated pigment solution A in the preparation of pigment dispersion composition A in Example 1. Next, a liquid crystal display device was fabricated in the same manner as in Example 1 except that the concentrated pigment solution ...

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Abstract

An organic pigment nanoparticle dispersion, its preparation method, a colored photosensitive resin composition containing the dispersion, a photosensitive resin transfer material using the composition, a color filter using the transfer material, and an LCD device using the color filter are provided to improve contrast, display characteristics and display durability. An organic pigment nanoparticle dispersion comprises an organic pigment nanoparticle, and contains 0.001-500 ppm of an alkali metal or an alkaline earth metal. Preferably the organic pigment nanoparticle dispersion comprises a polymer having a weight average molecular weight of 1,000 or more. A colored photosensitive resin composition comprises the organic pigment nanoparticle dispersion; a binder; a monomer or an oligomer; and a photopolymerization initiator. Preferably the pigment of the dispersion is a pyrrolopyrrole-based pigment.

Description

technical field [0001] The invention relates to organic pigment nanoparticles and applications thereof. More specifically, it relates to an organic pigment nanoparticle dispersion having a prescribed concentration of alkali metal and / or alkaline earth metal, and in particular, relates to an organic pigment nanoparticle capable of improving display unevenness in a liquid crystal display device and a photosensitive resin formed therefrom Composition, color filter, CCD device and liquid crystal display device. Background technique [0002] Pigments have vivid hues, high tinting strength, light fastness, etc., and are widely used in many fields. Among these pigments, fine particles are usually mostly practically important. This is an attempt to obtain vivid hues and high tinting strength through micronizing treatment to prevent pigment aggregation. However, if the pigment is micronized by a physical method such as salt milling, the pigment dispersion tends to exhibit high vis...

Claims

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Application Information

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IPC IPC(8): C09B67/02C09B67/10C09B57/00G02B5/23G02F1/1335
CPCB82Y40/00C09B67/006C09B67/008C09B67/0096C09B67/0097C09D11/322G02B5/223G02F1/133509
Inventor 松本圭右田中光利高桥秀知
Owner FUJIFILM CORP
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