Title:
TOUCH SUBSTRATE AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/093366
Kind Code:
A1
Abstract:
Disclosed are a touch substrate and a display device. The touch substrate comprises: a base substrate, and a touch driving electrode, a touch sensing electrode, and a grounding electrode located on the base substrate and insulated from each other. Non-overlapping regions exist between the orthographic projection of the grounding electrode on the base substrate and the orthographic projections of both the touch driving electrode and the touch sensing electrode on the base substrate. By providing a grounding electrode on a touch substrate, a capacitance formed between a finger and the ground is increased, so that the capacitance formed between the finger and the ground, the capacitance formed between the finger and the touch driving electrode, and the capacitance formed between the finger and the touch sensing electrode are connected in parallel, the total equivalent capacitance is reduced, and the amount of change in the total equivalent capacitance is increased, thereby facilitating detection of a touch point by a touch chip and increasing the detection accuracy of the touch point.
Inventors:
BO ZEWEN (CN)
XIANG DALIN (CN)
XIANG DALIN (CN)
Application Number:
PCT/CN2020/103830
Publication Date:
May 20, 2021
Filing Date:
July 23, 2020
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
G06F3/041; G06F3/044
Foreign References:
| CN110865737A | 2020-03-06 | |||
| CN103105991A | 2013-05-15 | |||
| CN107977121A | 2018-05-01 | |||
| CN106648265A | 2017-05-10 | |||
| CN104881189A | 2015-09-02 | |||
| US20100182258A1 | 2010-07-22 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
Download PDF: