Open AccessSingle cell-gap transflective liquid crystal device created by controlling the pretilt angle using a liquid crystalline reactive monomer
Author(s) -
Eun-Young Jeon,
Ki-Han Kim,
Jihoon Lee,
TaeHoon Yoon
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.025617
Subject(s) - materials science , liquid crystal , optics , polyimide , liquid crystal display , monomer , phase (matter) , optoelectronics , polymer , composite material , chemistry , physics , organic chemistry , layer (electronics)
We present a single cell-gap transflective liquid crystal (LC) device using a homogeneous alignment polyimide (H-PI) mixed with a liquid crystalline reactive monomer that is able to vertically align the LC. We obtain two different pretilt angles in each pixel through the region by region control of the UV exposure time. The smaller pretilt angle is used to obtain a half-wave phase retardation for the transmissive part, whereas the larger pretilt angle is used to obtain a quarter-wave phase retardation for the reflective part.