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Preparation of Colour Filter Photo Resists for Improving Colour Purity in Liquid Crystal Displays by Synthesis of Polymeric Binder and Treatment of Pigments

  • Yoon, Chun (Department of Chemistry, Sejong University) ;
  • Choi, Jae-Hong (Department of Textile System Engineering, Kyungpook National University)
  • Published : 2009.08.20

Abstract

Liquid crystal display (LCD) devices contain a colour filter which can visualise colour images by transmitting or absorbing light. Colour properties of LCD mainly depend on colour materials such as pigments and polymeric binders. In this paper, colour properties were studied to improve colour quality of LCD. Generally, the colour properties can be classified into three categories which are colour purity, brightness and contrast ratio. For this study, photo resists were prepared by treatment of pigments and synthesis of polymeric binder. The treated pigments were dispersed and formulated with additives for preparing a photo resist that could be used for manufacturing colour filters. As a result of what we studied, type, mixture ratio and concentration of pigments were very important to improve colour purity of LCD device.

Keywords

References

  1. Kubo, M.; Fujioka, S.; Ochi, T.; Narutaki, Y.; Shinomiya, T.; Ishii, Y.; Funada, F. Technical Digest of IDW 99'; SID: Okata, 1999; p 183
  2. Ichimura, K. Advanced Technologies for LCD Color Filters; CMC Publishing: Tokyo, 2006; p 8
  3. Takahashi, T. J. Imag. Soc. Japan 2002, 41, 68
  4. Sugiura, T. J. Print. Sci. Tech. Japan 1996, 356
  5. Jung, I. B.; Ahn, S. H.; Nam, S. Y. Clean Tech. 2008, 14, 21
  6. Ichimura, K. Advanced Technologies for LCD Color Filters; CMC Publishing: Tokyo, 2006; p 81
  7. Shimamura, M.; Furukawa, T.; Murakami, A.; Haga, T. USP 4837098; 1989
  8. Masahi, S.; Kenichi, F.; Toyoda, I.; Hirasawa, Y. JP 2001-220520; 2001
  9. Kunihiro, I.; Shusaburo, K.; Toshio, K.; Akira, O. JP 60-129707; 1985
  10. Deno, T. Pigments for Color Filter Application in LCD (Technical Brochure); Ciba Specialty Chemicals, 2005
  11. Chang, C.; Kao, H. USP 7,350,955; 2008

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