Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 6, 2014
Patent Application Number
13027488
Date Filed
February 15, 2011
Patent Citations Received
Patent Primary Examiner
Patent abstract
An object of the invention is to improve the accuracy of light detection in a photosensor, and to increase the light-receiving area of the photosensor. The photosensor includes: a light-receiving element which converts light into an electric signal; a first transistor which transfers the electric signal; and a second transistor which amplifies the electric signal. The light-receiving element includes a silicon semiconductor, and the first transistor includes an oxide semiconductor. The light-receiving element is a lateral-junction photodiode, and an n-region or a p-region included in the light-receiving element overlaps with the first transistor.
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