Title:
COMMON VOLTAGE CORRECTION CIRCUIT, DISPLAY PANEL, AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/221506
Kind Code:
A1
Abstract:
Disclosed are a common voltage correction circuit, a display panel, and a display apparatus. The common voltage correction circuit comprises: an offset detection circuit (10), which is used for determining, according to a first preset grayscale voltage and a second preset grayscale voltage, a direct-current offset degree of two ends of a liquid crystal layer under the influence of an ambient temperature, and outputting an offset detection signal; and a correction voltage generation circuit (20), which is used for generating a corresponding correction voltage according to the offset detection signal, and outputting the correction voltage to a common electrode wire (40), so as to correct a common voltage (Vcom), which is received by the common electrode wire (40), until the direct-current offset degree of the two ends of the liquid crystal layer, which is under the influence of the ambient temperature, is eliminated.
Inventors:
LI DEHUAI (CN)
LI RONGRONG (CN)
LI RONGRONG (CN)
Application Number:
PCT/CN2022/141162
Publication Date:
November 23, 2023
Filing Date:
December 22, 2022
Export Citation:
Assignee:
HKC CORP LTD (CN)
International Classes:
G09G3/36
Foreign References:
| CN114664271A | 2022-06-24 | |||
| US20080143703A1 | 2008-06-19 | |||
| CN106847157A | 2017-06-13 | |||
| CN101727858A | 2010-06-09 | |||
| CN102903344A | 2013-01-30 | |||
| CN104571701A | 2015-04-29 | |||
| CN105632396A | 2016-06-01 | |||
| CN112562607A | 2021-03-26 | |||
| CN114187861A | 2022-03-15 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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