Effects of Fine-Particle PR-177 and Co-dispersion with Sulfonic Acid Derivative of PR-177 on Properties of Pigment-Dispersion-Type Color Resist Inks for LCD Color Filters

DOI Web Site 17 References
  • YOKOYAMA Naoki
    Electronic Materials Research & Development Center Advanced Materials Division, Nippon Steel Chemical Co., Ltd.
  • KITAMURA Kenichi
    Electronic Materials Research & Development Center Advanced Materials Division, Nippon Steel Chemical Co., Ltd.
  • ITAHARA Toshihide
    Electronic Materials Research & Development Center Advanced Materials Division, Nippon Steel Chemical Co., Ltd.

Bibliographic Information

Other Title
  • LCDカラーフィルター用顔料分散型カラーレジストインキ特性に及ぼすアントラキノン系顔料の微粒化およびスルホン酸誘導体共分散の効果
  • LCD カラーフィルターヨウ ガンリョウ ブンサンガタ カラーレジストインキ トクセイ ニ オヨボス アントラキノンケイ ガンリョウ ノ ビリュウカ オヨビ スルホンサン ユウドウタイ キョウ ブンサン ノ コウカ

Search this article

Description

Dispersions of a pigment, 4, 4'-diamino-1, 1'-bianthraquinone (PR-177) were prepered by using and color resist inks using the pigment dispersion for LCD color filters were also prepered. The viscosity and the mean particle size of those pigment dispersions were measured, and the effects of fine-particle PR-177 and the addition of sulfonic acid derivative of PR-177 on the color properties of the resist inks were investigated. The color resist inks prepered with fine-particle PR-177 of which specific surface area was 113.5 m2/g, showeci higher brightness and high contrast ratio, but the viscosity and thixotropy index (TI value) of the pigment dispersions increased. Viscosity and TI value of the dispersions were improved by the addition of the sulfonic acid derivative. The addition of the sulfonic acid derivative to the standard PR-177, of which specific surface area was 90.7 m2/g, in the lowering of the viscosity, showed an adequate improvement while it showed little effect on the fineparticle PR-177. When the fraction of the sulfonic acid derivative exceeded 5%, haze was found on the surfaces of both the ink films prepared with the standard and the fine-particle PR177s, which remained as a subject to be improved.

Journal

References(17)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top