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. 11, 2025
Filed:
Mar. 07, 2024
Taiwan Semiconductor Manufacturing Company Ltd., Hsinchu, TW;
Ming-Hsien Yang, Taichung, TW;
Huan-En Lin, Kaohsiung, TW;
Chia-Yu Wei, Tainan, TW;
Chun-Hao Chou, Tainan, TW;
Kuo-Cheng Lee, Tainan, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD., Hsinchu, TW;
Abstract
The present disclosure provides a high-dynamic range (HDR) pixel circuit, which includes a pixel subcircuit and a light-responsive switch circuit. The pixel subcircuit includes a photodetector, a capacitor, and a source-follower transistor. The source-follower transistor is enabled using a power supply voltage provided by the light-responsive switch circuitin response to the HDR pixel circuit being in a low light illuminance. The source-follower transistor is enabled using a first voltage generated by the photodetector in response to the HDR pixel circuit being in a high light illuminance. A first voltage detected by the photodetector and a second voltage associated with electric charges stored in the capacitor are outputted to form a HDR pixel value.