Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2007-07-10
2010-12-14
Le, Uyen-Chau N (Department: 2874)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
Reexamination Certificate
active
07852440
ABSTRACT:
A liquid crystal display device of the invention has: a display panel with an active matrix substrate2and a second substrate of transparent material deposed opposite that substrate; an illuminating unit that illuminates the display panel; and a photosensing unit that is provided on the active matrix substrate and has an ambient light photosensor that senses external light. The ambient light photosensor is constituted of a thin film transistor. At least the source electrode SLand drain electrode DLof the thin film transistor are covered by a shielding transparent electrode6, with transparent insulator3and5interposed. The transparent electrode6is electrically connected to the drain electrode DL, and moreover is connected to a power source supplying constant voltage. Thanks to such structure, a display device is provided in which the ambient light photosensor is built into a panel substrate so as not to be affected by external noise and the peripheral circuits.
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Hirabayashi Yukiya
Kunimori Takashi
Sano Yutaka
Yamazaki Yasushi
Yasumori Masanori
Chu Chris H
K&L Gates LLP
Le Uyen-Chau N
Sony corporation
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