Transflective liquid crystal display device

Details Transflective liquid crystal display device Transflective liquid crystal display device

2011-01-25

2011-01-25

Qi, Mike (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S141000, C349S117000, C349S124000

Reexamination Certificate

active

07876406

ABSTRACT:
A transflective LCD includes a LC layer sandwiched between a pair of substrates, and a pair of polarizing films. The LCD device includes a reflection area and a transmission area in each pixel, the transmission area having a reflection film. A retardation film has a first portion in the refection area between the reflection film and the LC layer, and a second portion in the transmission area between the LC layer and the rear polarizing film. The retardation film has a slow axis perpendicular to an initial orientation direction of the LC molecules upon absence of an applied voltage and perpendicular or parallel to the optical axis of the front polarizing film. The orientation of the LC molecules upon display of a dark state has a direction different between the reflection area and the transmission area.

REFERENCES:
patent: 6914656 (2005-07-01), Sakamoto et al.
patent: 2006/0023146 (2006-02-01), Yang et al.
patent: 2010/0110351 (2010-05-01), Kim et al.
patent: 2003-344837 (2003-12-01), None
P-97: A Novel Transflective Display Associated with Fringe-Field Switching, T.B. Jung and S.H. Lee et al. [SID 03 Digest, 592], 2003.
P-159: A Single Gap Transflective Fringe-Field Switching Display, E. Jeong, M. O. Choi, Y. J. Li, Y. H. Jeong, H. Y. Kim, S. Y. Kim and S. H. Lee [SID 06 Digest, 810], 2006.

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