Optical configurations for an achromatic transflective liquid crystal cell

Abstract

We propose optical configurations of a double‐cellgap liquid crystal cell for transflective displays with wide viewing angle and high contrast ratio. The reflective part is designed in the wide‐band quarter wave structure to achieve good dark state. For the transmissive part, the compensation method is applied to achieve the super‐achromatic dark state, and three switching methods are used: which are vertical switching, horizontal switching to 30° and horizontal switching to 120°, to achieve the bright state.

Keywords:

• liquid crystal
• transflective
• double cell gap
• horizontal switching

Notes

Student Members, KIDS

Members, KIDS

Department of Electronics Engineering, Pusan National University Busan 609–735, Korea.

Panel Design 4 Team, LG. Philips LCD Gumi‐si, Gyungsangbuk‐do 730–726, Korea