Twisted Nematic LC Modulator for TFT Array Inspection

  • Bae, B.S. (School of Display Eng., Hoseo University) ;
  • Park, D.H. (LC Technical Center, Merck Advanced Technologies Ltd.) ;
  • Lee, H.K. (LC Technical Center, Merck Advanced Technologies Ltd.) ;
  • Lee, S.E. (LC Technical Center, Merck Advanced Technologies Ltd.) ;
  • Kim, S.H. (PRI, LG Electronics) ;
  • Jeong, D.H. (PRI, LG Electronics) ;
  • Rho, B.G. (Sesim Photonics Technology)
  • Published : 2007.08.27

Abstract

A twisted nematic type liquid crystal electro-optic modulator (TN-LC modulator) was developed. The modulator used single polarizer and the reflection on-off ratio was maximized by optimization of twist angle and retardation of liquid crystal cell. The TNLC modulator shows better sensitivity and response time than conventional liquid crystal modulator.

Keywords