Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2007-05-18
2009-08-04
Healy, Brian M (Department: 2883)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S187000
Reexamination Certificate
active
07570326
ABSTRACT:
A semi-transmissive type liquid-crystal display device makes it possible to easily optimize both the reflection characteristic (reflection mode) and the transmission characteristic (transmission mode) while keeping a high aperture ratio, thereby improving the display quality. A liquid crystal layer is disposed between first and second substrates. Switching elements are formed on the first substrate for respective pixel regions. Each of the pixel regions is divided into a transmission region and a reflection region. An interlayer insulating film is formed to cover the switching elements on the first substrate. In the transmission region, a transmission electrode is formed on the interlayer insulating film. In the reflection region, a reflection electrode is formed on the interlayer insulating film. The surface of the interlayer insulating film is partially removed, thereby forming a level difference between the transmission and reflection regions.
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Healy Brian M
McGinn IP Law Group PLLC
NEC LCD Technologies Ltd.
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