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Title:
VOLTAGE COMPENSATION METHOD AND APPARATUS, AND TOUCH DISPLAY MODULE
Document Type and Number:
WIPO Patent Application WO/2019/174359
Kind Code:
A1
Abstract:
A voltage compensation method comprises: during a touch time period, multiplexing common electrode blocks as touch electrodes, touch-scanning at least one column of common electrode blocks in sequence, and detecting a capacitance value of each touch-scanned common electrode block; during a time period from a moment when the capacitance value of each scanned common electrode block is detected to a start moment of the Nth display time period set after the touch time period, calculating power consumption of each touch-scanned common electrode block according to the capacitance value of each touch-scanned common electrode block, obtaining a corresponding common electrode voltage compensation amount according to the power consumption of each touch-scanned common electrode block, and adding the common electrode voltage compensation amount to a basic common electrode voltage to obtain a compensated common electrode voltage of each touch-scanned common electrode block; and during the Nth display period, adjusting a common electrode voltage transferred to each touch-scanned common electrode block as the compensated common electrode voltage.

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Inventors:
LIU RUI (CN)
CHEN GAOWEI (CN)
XU JUNJIE (CN)
WANG YANMING (CN)
WANG JIAQIANG (CN)
YU CHAO (CN)
LIU DONG (CN)
Application Number:
PCT/CN2018/124228
Publication Date:
September 19, 2019
Filing Date:
December 27, 2018
Export Citation:
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Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
BEIJING BOE OPTOELECTRONICS TECH CO LTD (CN)
International Classes:
G09G3/36
Foreign References:
CN104777942A2015-07-15
CN105426026A2016-03-23
CN104090697A2014-10-08
CN103941443A2014-07-23
CN103488325A2014-01-01
JP2011150017A2011-08-04
Other References:
See also references of EP 3767617A4
Attorney, Agent or Firm:
DRAGON INTELLECTUAL PROPERTY LAW FIRM (CN)
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