Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
권호 표지
DOI QR코드

DOI QR Code

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
Download PDF
⟨ Previous Next ⟩

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

Cited by

  1. Improving the Contrast Ratio of Red Pixels in Liquid-Crystal Displays by Synthesizing Synergists from an Anthraquinone Colorant vol.533, pp.1, 2010, https://doi.org/10.1080/15421406.2010.526459
  2. Preparation of Solvent Soluble Dyes Derived from Diketo-pyrrolo-pyrrole Pigment by Introducing an N-Alkyl group vol.31, pp.4, 2010, https://doi.org/10.5012/bkcs.2010.31.04.1073
  3. Preparation of Color Filter Photo Resists for Generating Color Pixels in Liquid Crystal Displays by Synthesis and Applications of Polymeric Binders vol.31, pp.9, 2009, https://doi.org/10.5012/bkcs.2010.31.9.2727
  4. Synthesis and Examination of Polymers to Improve Pattern Clarity and Resistance Properties of Phthalocyanine Color Pixels in Liquid Crystal Display vol.32, pp.3, 2009, https://doi.org/10.5012/bkcs.2011.32.3.1033
  5. Synthesis and Thermal Stability of Solvent Soluble Dyes Based on Dimerized Diketo-pyrrolo-pyrrole Pigment vol.35, pp.2, 2009, https://doi.org/10.5012/bkcs.2014.35.2.659
  6. Preparation and investigation of suitability of gadolinium oxide nanoparticle doped polyvinyl alcohol films for optoelectronic applications vol.30, pp.9, 2009, https://doi.org/10.1007/s10854-019-01237-9