Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2005-11-01
2005-11-01
Dudek, James A. (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S102000, C349S121000, C349S119000, C349S103000
Reexamination Certificate
active
06961104
ABSTRACT:
A transflective liquid crystal display device includes: first and second substrates facing and spaced apart from each other, the first and second substrates having reflective and transmissive portions; a first retardation film on an outer surface of the first substrate, the first retardation film having a first optical axis; a first polarizing plate on the first retardation film, the first polarizing plate having a first transmissive axis; a common electrode on an inner surface of the first substrate; a pixel electrode on an inner surface of the second substrate; a second retardation film on an outer surface of the second substrate, the second retardation film having a second optical axis; a second polarizing plate on the second retardation film, the second polarizing plate having a second transmissive axis; and a liquid crystal layer between the common electrode and the pixel electrode, the liquid crystal layer having a director, wherein the first optical axis has a first angle of θ with respect to the first transmissive axis, the director has a second angle of 2θ+45° with respect to the first transmissive axis, the second optical axis has a third angle of 3θ+90° with respect to the first transmissive axis, and the second transmissive axis has a fourth angle of 4θ with respect to the first transmissive axis.
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patent: 2001/0048496 (2001-12-01), Baek
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Baek, Heume-II, et al. “Designing low cost liquid crystal mode for Transflective LCD” IMID '02 Digest, pp. 1-4.
Heme-I1 Baek et al., New Design of Transflective LCD With Single Retardation Film, IDW '00, pp. 41-44.
Dudek James A.
Morgan & Lewis & Bockius, LLP
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