Highly-efficient backlight for liquid crystal display having no optical films

Takamitsu Okumura, Akihiro Tagaya, Yasuhiro Koike, Masahiro Horiguchi, Hiromasa Suzuki

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We propose a highly-efficient backlight that requires no optical films with a polymer containing spherical particles of micron size. The backlight developed is provided with microprisms at the bottom surface, which can reflect the incident light directly into the front direction. A modeling simulation program, employing a Monte Carlo method based on Mie scattering theory, has optimized both the prismatic condition and the multiple scattering characteristics. We confirm that a uniformity of brightness can be achieved without using any optical films, resulting in a high optical efficiency of 62%.

Original languageEnglish
Pages (from-to)299/[1027]-313/[1041]
JournalMolecular Crystals and Liquid Crystals
Publication statusPublished - 2004 Dec 17


  • Backlight
  • Liquid crystal display
  • Microprism
  • Monte Carlo method

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


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