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Title:
POWER SUPPLY FEEDBACK ADJUSTMENT SYSTEM, AND DISPLAY SCREEN
Document Type and Number:
WIPO Patent Application WO/2021/008384
Kind Code:
A1
Abstract:
Disclosed are a power supply feedback adjustment system (10) and a display screen. The system (10) comprises a processing module (300), a current detection module (400), a constant-current driving module (200), and a voltage-stabilizing power supply module (100), wherein the voltage-stabilizing power supply module (100) supplies power to the constant-current driving module (200), such that the constant-current driving module (200) outputs a current; and the processing module (300) acquires, by means of the current detection module (400), the current output by the constant-current driving module (200), obtains, according to the current output by the constant-current driving module (200), a breakover voltage of the constant-current driving module (200) and a working voltage of a light-emitting diode, and obtains, according to the breakover voltage, and the working voltage of the light-emitting diode, the minimum power supply voltage of the light-emitting diode, thereby realizing measurement of the minimum power supply voltage of the light-emitting diode, and realizing the function of feedback adjustment by means of controlling the voltage-stabilizing power supply module (100) to output the power supply voltage.

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Inventors:
LEI SONG (CN)
WANG JINSHAN (CN)
Application Number:
PCT/CN2020/100016
Publication Date:
January 21, 2021
Filing Date:
July 03, 2020
Export Citation:
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Assignee:
UNILUMIN GROUP CO LTD (CN)
International Classes:
G05F1/575; G05F1/565
Domestic Patent References:
WO2007074866A12007-07-05
Foreign References:
CN110262615A2019-09-20
CN105554951A2016-05-04
CN201967208U2011-09-07
CN101861012A2010-10-13
US20120146531A12012-06-14
CN101636021A2010-01-27
US9035560B22015-05-19
CN205213096U2016-05-04
CN201438772U2010-04-14
CN101581443A2009-11-18
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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