Light intensity detection circuit, light intensity detection method and light intensity detection apparatus

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United States of America Patent

PATENT NO 11860029
APP PUB NO 20220307898A1
SERIAL NO

17418260

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Abstract

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Provided are a light intensity detection circuit, a light intensity detection method and an light intensity detection apparatus. The light intensity detection circuit includes a photoelectric conversion sub-circuit, a source follower sub-circuit, a reset sub-circuit, a read sub-circuit and a sense sub-circuit. The photoelectric conversion sub-circuit generates a corresponding electrical signal according to an incident light signal, and outputs it to a first node; the source follower sub-circuit generates a corresponding voltage signal or current signal according to the electrical signal of the first node and outputs it to a second node; the read sub-circuit reads the voltage signal or current signal of the second node to determine an incident light intensity; the reset sub-circuit provides a voltage at a offset voltage terminal to the first node.

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Patent Owner(s)

Patent OwnerAddress
BOE TECHNOLOGY GROUP CO LTDBEIJING 100015
BEIJING BOE SENSOR TECHNOLOGY CO LTDROOM C-301 C-302 FLOOR 3 AREA C BUILDING 2 NO 8 XIHUANZHONG RD BDA BEIJING 100176

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chung, Kunjing Beijing, CN 7 4
Kong, Dexi Beijing, CN 12 2

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