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:
Nov. 01, 2011
Filed:
Nov. 18, 2010
Kazuo Nishi, Kofu, JP;
Tatsuya Arao, Ebina, JP;
Atsushi Hirose, Atsugi, JP;
Yuusuke Sugawara, Minamiarupusu, JP;
Naoto Kusumoto, Isehara, JP;
Daiki Yamada, Isehara, JP;
Hidekazu Takahashi, Isehara, JP;
Kazuo Nishi, Kofu, JP;
Tatsuya Arao, Ebina, JP;
Atsushi Hirose, Atsugi, JP;
Yuusuke Sugawara, Minamiarupusu, JP;
Naoto Kusumoto, Isehara, JP;
Daiki Yamada, Isehara, JP;
Hidekazu Takahashi, Isehara, JP;
Semiconductor Energy Laboratory Co., Ltd., Atsugi-shi, Kanagawa-ken, JP;
Abstract
The present invention provides a photoelectric conversion device capable of detecting light from weak light to strong light and relates to a photoelectric conversion device having a photodiode having a photoelectric conversion layer; an amplifier circuit including a transistor; and a switch, where the photodiode and the amplifier circuit are electrically connected to each other by the switch when intensity of entering light is lower than predetermined intensity so that a photoelectric current is amplified by the amplifier circuit to be outputted, and the photodiode and part or all of the amplifier circuits are electrically disconnected by the switch so that a photoelectric current is reduced in an amplification factor to be outputted. According to such a photoelectric conversion device, light from weak light to strong light can be detected.