Spatial light modulators using polymer-dispersed liquid crystal and Bi12SiO20 photoconductive layers for projection display

Kuniharu Takizawa, Hiroshi Kikuchi, Hideo Fujikake, Takanori Fujii, Masahiro Kawakita, Minori Yokozawa, Akiko Murata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

There is hopefully expected a projection display using spatial light modulators (SLMs) converting a faint input-image into a brilliant output-image. A conventional liquid crystal SLM loses more than 50% of a reading light in polarizer. To solve this problem, we developed a new SLM consisting of polymer-dispersed liquid crystal (PDLC) and Bi12SiO20 photoconductive layers. This SLM needs no polarizer, because it lets a reading light pass or scatter depending on whether a writing light is incident upon the photoconductive layer. We calculated the dependence of the resolution of the device on the several parameters including thickness, dielectric constants and conductivities of the dielectric mirror and PDLC layer by using a new electrical image method. A high-definition SLM with limiting resolution (36 - 50 lp/mm) was fabricated by stacking the optimized mirror and PDLC layer. In cooperating the device into a Schlieren optical system consisting of an LC panel as an input image source and a 1 kW Xenon lamp as a projection light source, we performed high-contrast green image projection with a total luminous flux of 1500 lumen.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages136-148
Number of pages13
ISBN (Print)0819417548
Publication statusPublished - 1995 Jan 1
Externally publishedYes
EventProjection Displays - San Jose, CA, USA
Duration: 1995 Feb 81995 Feb 10

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2407
ISSN (Print)0277-786X

Other

OtherProjection Displays
CitySan Jose, CA, USA
Period95/2/895/2/10

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Takizawa, K., Kikuchi, H., Fujikake, H., Fujii, T., Kawakita, M., Yokozawa, M., & Murata, A. (1995). Spatial light modulators using polymer-dispersed liquid crystal and Bi12SiO20 photoconductive layers for projection display. In Proceedings of SPIE - The International Society for Optical Engineering (pp. 136-148). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2407). Society of Photo-Optical Instrumentation Engineers.