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:
Feb. 24, 2015
Filed:
Sep. 22, 2011
Takeshi Yonekura, Chiba, JP;
Toshio Miyazawa, Chiba, JP;
Atsushi Hasegawa, Togane, JP;
Terunori Saitou, Mobara, JP;
Kozo Yasuda, Mobara, JP;
Takeshi Yonekura, Chiba, JP;
Toshio Miyazawa, Chiba, JP;
Atsushi Hasegawa, Togane, JP;
Terunori Saitou, Mobara, JP;
Kozo Yasuda, Mobara, JP;
Japan Display Inc., Tokyo, JP;
Panasonic Liquid Crystal Display Co., Ltd., Himeji-shi, JP;
Abstract
A photosensor array includes plural photosensor pixels. Each of the photosensor pixels includes a lower electrode, an amorphous silicon film, an n-type amorphous silicon film, and an upper electrode. The photosensor array includes plural scanning lines connected to the upper electrodes, plural read lines connected to the lower electrodes, a scanning circuit that is connected to the plural scanning lines, and sequentially supplies a selection scanning signal of a first voltage to the respective scanning lines, a first unit that inputs a second voltage higher than the first voltage to the plural read lines in a blanking period of one horizontal scanning period, and thereafter puts the plural read lines into the floating state, and a second unit that outputs a voltage change in each of the read lines within one horizontal scanning period as the sensor output voltage of the photosensor pixel.