Title:
TOUCH DISPLAY CONTROL DEVICE AND TOUCH DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/184767
Kind Code:
A1
Abstract:
A touch display control device (100) and a touch display device. The touch display control device (100) comprises a touch control module (102) for touch detection, the touch control module (102) having a plurality of touch detection channels (124), so as to receive multiple channels of touch sensing signals by means of the plurality of touch detection channels (124) to perform touch detection; a display control module (101) for display control, the display control module (101) and the touch control module (102) performing display control and touch detection in a time sharing manner; a selection module (123) for selectively accessing the touch detection channels (124) and a common voltage signal to a touch display panel (200); a plurality of nodes connecting the selection module (123) and the touch display panel (200) serving as compensation nodes, the touch display control device (100) further comprises a plurality of compensation modules (126) connected to the plurality of compensation nodes respectively, each compensation module (126) being used for offsetting an interference voltage when an interference voltage coupled to a corresponding compensation node exceeds a preset value, avoiding horizontal lines and vertical lines in the display image.
Inventors:
CHEN TIANHAO (CN)
XIE YOUQIAO (CN)
XIE YOUQIAO (CN)
Application Number:
PCT/CN2019/078700
Publication Date:
October 03, 2019
Filing Date:
March 19, 2019
Export Citation:
Assignee:
CHIPONE TECHNOLOGY BEIJING CO LTD (CN)
International Classes:
G09G3/36; G02F1/1333; G06F3/041
Foreign References:
| CN108320720A | 2018-07-24 | |||
| CN208014351U | 2018-10-26 | |||
| CN103488325A | 2014-01-01 | |||
| CN103488325A | 2014-01-01 | |||
| CN107577365A | 2018-01-12 | |||
| CN107562279A | 2018-01-09 | |||
| CN103513813A | 2014-01-15 | |||
| CN107742506A | 2018-02-27 | |||
| CN107728832A | 2018-02-23 | |||
| US20170315652A1 | 2017-11-02 |
Attorney, Agent or Firm:
TOWIN INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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