Patent · US Active

In-cell touch panel and display device

US9678594B2 · kind B2 · utility

8Cited by

3References

9Claims

0Family size

Assignees

Inventors

Lei Wang · Singapore, SG
Xue Dong · Beijing, CN
Hailin Xue · Beijing, CN
Haisheng Wang · Beijing, CN
Yingming Liu · Beijing, CN
Shengji Yang · Beijing, CN
Hongjuan Liu · Beijing, CN
Xiaoliang Ding · Beijing, CN
Weijie Zhao · Beijing, CN
Chunlei Wang · Beijing, CN
Yue Li · Beijing, CN

Key dates

Filing date	Sep 20, 2014
Grant date	Jun 13, 2017
Priority date	—
Expiry date	Sep 20, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG09G2354/00
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An in-cell touch panel and a display device are disclosed, a common electrode layer is reused as self-capacitance electrodes in accordance with self-capacitance principle. A pattern of common electrode layer is designed such that the common electrode layer is partitioned into a plurality of mutually independent self-capacitance electrodes along strip-like slits and a direction crossing the slits. The touch sensing chip can determine a touch position by detecting capacitance value variation of self-capacitance electrodes in a touch period. The in-cell touch panel can save production costs and improve production efficiency, and also can avoid light leakage caused by cutting common electrode layer and influence on display effect.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.