The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 14, 2010
Filed:
Jul. 10, 2007
Takashi Kunimori, Tottori, JP;
Yutaka Sano, Tottori, JP;
Masanori Yasumori, Tottori, JP;
Yukiya Hirabayashi, Suwa, JP;
Yasushi Yamazaki, Chino, JP;
Takashi Kunimori, Tottori, JP;
Yutaka Sano, Tottori, JP;
Masanori Yasumori, Tottori, JP;
Yukiya Hirabayashi, Suwa, JP;
Yasushi Yamazaki, Chino, JP;
Sony corporation, Tokyo, JP;
Abstract
A liquid crystal display device of the invention has: a display panel with an active matrix substrateand 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 Sand drain electrode Dof the thin film transistor are covered by a shielding transparent electrode, with transparent insulatorandinterposed. The transparent electrodeis electrically connected to the drain electrode D, 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.