Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2011-07-19
2011-07-19
Rude, Timothy (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
Reexamination Certificate
active
07982832
ABSTRACT:
The present invention enhances display efficiency and a contrast of a reflective part in an IPS-type transflective liquid crystal display device. In a transflective liquid crystal display device in which the liquid crystal display device includes a liquid crystal display panel having a pair of substrates and liquid crystal sandwiched between the pair of substrates, the liquid crystal display panel includes a plurality of sub pixels each having a transmissive part and a reflective part, each sub pixel out of the plurality of sub pixels includes a pixel electrode which is formed on one substrate out of the pair of substrates and a counter electrode which is formed on the one substrate, and an electric field is generated by the pixel electrode and the counter electrode thus driving the liquid crystal, a portion of the counter electrode of the each sub pixel at the reflective part constitutes a reflective electrode, the reflective electrode includes an uneven portion and a flat portion, and the flat portion of the reflective electrode is arranged on a boundary portion between the transmissive part and the reflective part of the each sub pixel.
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Hirota Shoichi
Imayama Hirotaka
Itou Osamu
Nagata Tetsuya
Antonelli, Terry Stout & Kraus, LLP.
Hitachi Displays Ltd.
Rude Timothy
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