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:
Apr. 07, 2015
Filed:
Nov. 30, 2010
Yasuhiro Sugita, Osaka, JP;
Kohei Tanaka, Osaka, JP;
Christopher Brown, Oxford, GB;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
Provided is a display device that has excellent accuracy in image capturing by improving linearity of sensitivity characteristics of a photodiode. An optical sensor provided on an active matrix substrate of the display device includes; a photodiode (D) for receiving incident light; a reset signal line (RSTa) for supplying a reset signal RST to the optical sensor; a readout signal line (RWSa) for supplying a readout signal RWS to the optical sensor; and a sensor switching element (M) for reading out a photoelectric current output from the photodiode (D), according to the readout signal, during a period from the supply of the reset signal to the supply of the readout signal. A potential VLS of a light shielding film (LS) provided on a back side of the photodiode (D) is caused to be a high level potential during a period that at least partially overlaps a period while the reset signal is supplied.