Shigeyoshi Nishino

Fast electro‐optical response at low temperature for metal nanoparticle embedded STN‐LCDs (Invited Paper)

— STN-LCDs embedded with special metal nanoparticles of Ag/Pd are shown to be useful for a direct-multiplexed dot-matrix STN-LCD with 320 × 240 pixels and show a fast response time by 3–5 times compared to those without nanoparticles. This phenomenon is shown to be attributed to the reduction of rotational viscosity by 70% at room temperature and by 30% at a low temperature (−20°C). The alteration of elastic constants by doping nanoparticles could be also essential.

12.5L: Late-News Paper: Fast Switching Super Twisted Nematic Liquid Crystal Displays Doped with Silver and Palladium Nanoparticles

This paper reports for the first time that the metal nanoparticle doping technology in STN-LCDs is effective for realizing their fast response speed particularly at low temperature. The ratio of Ag and Pd of the metal nanoparticle doped in the liquid crystal is changed, and the condition suitable for the direct multiplexed dot matrix driving is found. It is demonstrated that the switching speed of STN-LCD is improved particularly at the low temperature, say, −30°C over three times.