P‐1: Optical Properties of Reflective LCD with Diffusive Micro Slant Reflectors (DMSR)

Abstract

A reflective TFT-LCD with an internal diffusive micro slant reflector (DMSR) is developed to improve the previous MSR structure [1,2]. The DMSR structure is optimized to obtain a desired light scattering disbribution cone while still preserving the asymmetry characteristics. A 6.4" VGA full-color reflective TFT-LCD with a DMSR is realized. In this paper, we will discuss the optical perperties of the panel. The measurement results show that the reflectance is 42% compared with a Lambertian white standard and the contrast ratio is larger than 20:1.

Switchable transmissive and reflective liquid‐crystal display using a multi‐domain vertical alignment

“…Such a diffusive transflector can be made by using just a few lithographic steps: first, an exposure method is applied to obtain the bumpy surface profile on a passivation layer surface, followed by deposition of a thin layer metal material (alumi-num), and, finally, dense tiny holes are etched on the metal layer of the transmissive area. 10 The diffusive property can be controlled by the first exposure in forming bumpy surface, and the T/R ratio of such a transflector can be controlled by the total area and density of the open holes. According to Fig.…”