Title:
AMBIENT LIGHT DETECTION CIRCUIT AND METHOD, AND DISPLAY SCREEN
Document Type and Number:
WIPO Patent Application WO/2018/171364
Kind Code:
A1
Abstract:
An ambient light detection circuit (100) and method, and a display screen (1000). The ambient light detection circuit (100) comprises: a light-sensing sub-circuit (110) for outputting a voltage pulse signal related to the current intensity of ambient light; and a detection sub-circuit (120) electrically connected to the light-sensing sub-circuit (110) and used for acquiring the frequency of the voltage pulse signal and obtaining the current intensity of the ambient light according to the frequency of the voltage pulse signal.
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Inventors:
DING XIAOLIANG (CN)
DONG XUE (CN)
LV JING (CN)
WANG HAISHENG (CN)
WU CHUN-WEI (CN)
LIU YINGMING (CN)
WANG PENGPENG (CN)
LIU WEI (CN)
HAN YANLING (CN)
CAO XUEYOU (CN)
ZHANG PING (CN)
DONG XUE (CN)
LV JING (CN)
WANG HAISHENG (CN)
WU CHUN-WEI (CN)
LIU YINGMING (CN)
WANG PENGPENG (CN)
LIU WEI (CN)
HAN YANLING (CN)
CAO XUEYOU (CN)
ZHANG PING (CN)
Application Number:
PCT/CN2018/076472
Publication Date:
September 27, 2018
Filing Date:
February 12, 2018
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
G01J1/42; G01J1/44; G09G5/10
Foreign References:
| CN106969832A | 2017-07-21 | |||
| CN104568146A | 2015-04-29 | |||
| CN105405429A | 2016-03-16 |
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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