METHOD FOR PRODUCING PIGMENT DISPERSIONPIGMENT DISPERSION AND COLORED RESIN COMPOSITION FOR COLOR FILTER

An object of the present invention is to provide a pigment dispersion liquid having excellent dispersibility and dispersion stability and exhibiting excellent optical performance when used as a display material, such as a liquid crystal display material, an organic EL display material, or the like....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NAGAI TAKERO, MAENO YOSHIHITO, OTOMO CHIAKI, ICHIKAWA YUJI, MUKAWA YUICHIRO
Format: Patent
Sprache:eng ; kor
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Beschreibung
Zusammenfassung:An object of the present invention is to provide a pigment dispersion liquid having excellent dispersibility and dispersion stability and exhibiting excellent optical performance when used as a display material, such as a liquid crystal display material, an organic EL display material, or the like. The present invention relates to a production method of a pigment dispersion liquid, a pigment dispersion liquid produced by the production method, a photosensitive colored resin composition containing the pigment dispersion liquid, and a color filter obtained by using the photosensitive colored resin composition. According to the production method of a pigment dispersion liquid, the pigment dispersion liquid contains at least a pigment (A), a dispersant (B), and a solvent (C). The pigment (A) has a value (S/N) of 90 or less, which represents a degree of crystallinity and is obtained by dividing the strength (S) of a main peak of an X-ray diffraction spectrum by the strength (N) of background noise. (과제) 우수한 분산성·분산 안정성을 갖고, 또한, 액정 디스플레이 재료, 유기 EL 디스플레이 재료 등의 디스플레이 재료로서 사용했을 때에, 우수한 광학적 성능을 나타내는 안료 분산액을 제공하는 것. (해결 수단) 적어도, (A) 안료, (B) 분산제, 및, (C) 용매를 함유하는 안료 분산액의 제조 방법으로서, (A) 안료로서, X 선 회절 스펙트럼의 주피크의 강도 (S) 를 백그라운드 노이즈의 강도 (N) 으로 나눈 결정성의 정도를 나타내는 값 (S/N) 이 90 이하인 (A) 안료 (a) 를 함유시키는 것을 특징으로 하는 안료 분산액의 제조 방법, 그 제조법으로 제조된 안료 분산액, 그 안료 분산액을 함유하는 감광성 착색 수지 조성물, 그 감광성 착색 수지 조성물을 이용하여 얻어지는 컬러 필터.