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:
Jun. 01, 2021
Filed:
Jul. 24, 2019
Innolux Corporation, Miao-Li County, TW;
Chih-Hao Wu, Miao-Li County, TW;
Innolux Corporation, Miao-Li County, TW;
Abstract
A light detection device includes a first gate line, a second gate line adjacent to the first gate line, a first switching unit, a second switching unit, and a readout circuit. The first switching unit includes a first gate electrode connected to the first gate line, and a first drain electrode electrically connected to a light sensing unit. The second switching unit includes a second gate electrode connected to the second gate line, and a second drain electrode electrically connected to a light sensing unit. An operation method of the light detection device includes receiving a first readout signal and a second readout signal from the first switching unit and the second switching unit respectively by the readout circuit and calculating a difference between the first readout signal and the second readout signal for determining whether the light detection device is irradiated by detection light.