Title:
ADJUSTMENT METHOD FOR GAMMA VOLTAGE ADJUSTMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/066938
Kind Code:
A1
Abstract:
Provided is an adjustment method for a gamma voltage adjustment device (3). The gamma voltage adjustment device (3) is used for providing a liquid crystal panel (34) for displaying N groups of greyscales and comprises a printed circuit board assembly (30) and a gamma voltage trimming unit (32). The adjustment method for the gamma voltage adjustment device (3) comprises: generating, by a printed circuit board assembly (30), N+2 groups of gamma voltages; inputting the N+2 groups of gamma voltages into a gamma voltage trimming unit (32); and according to the N+2 groups of gamma voltages, generating, by the gamma voltage trimming unit (32), negative polarity drive voltages and positive polarity drive voltages which are symmetrical to each other. By reducing 2N groups of gamma voltages required in the prior art to N+2 groups of gamma voltages, the method reduces the number of gamma integrated circuits on the printed circuit board assembly (30) so as to save costs.
Inventors:
GUO DONGSHENG (CN)
DAI YE (CN)
DAI YE (CN)
Application Number:
PCT/CN2013/086995
Publication Date:
May 14, 2015
Filing Date:
November 13, 2013
Export Citation:
Assignee:
SHENZHEN CHINA STAR OPTOELECT (CN)
International Classes:
G09G3/36
Foreign References:
| CN101414452A | 2009-04-22 | |||
| CN101739924A | 2010-06-16 | |||
| JP2006274116A | 2006-10-12 | |||
| US20070279364A1 | 2007-12-06 |
Attorney, Agent or Firm:
ESSEN PATENT & TRADEMARK AGENCY (CN)
深圳翼盛智成知识产权事务所(普通合伙) (CN)
深圳翼盛智成知识产权事务所(普通合伙) (CN)
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