Title:
TOUCH SENSOR IN WHICH PCAP METHOD AND EMR METHOD ARE COMBINED
Document Type and Number:
WIPO Patent Application WO/2020/017748
Kind Code:
A1
Abstract:
An objective of the present invention is to provide a touch sensor using both a projected capacitive (PCAP) method and an electro-magnetic resonance (EMR) method in a display device. To this end, provided is a touch sensor using a PCAP method and an EMR method using a copper mesh, the touch sensor including a panel unit capable of performing touch recognition by using both the PCAP method and the EMR method and a sensor unit for determining a touch method when the panel unit is touched and performing the touch recognition according to the touch method, wherein the panel unit includes: a first panel of the PCAP method; and a second panel of the EMR method, and the sensor unit includes: a first panel driving unit operating the first panel; a second panel driving unit operating the second panel; and a control unit for detecting a capacitance change of the first panel via the first panel driving unit, detecting a magnetic field change of the second panel via the second panel driving unit, and determining the capacitance change and the magnetic field change to thereby determine whether to operate the first panel driving unit or the second panel driving unit simultaneously or selectively, and wherein an electrode pattern of the first panel or an antenna loop pattern of the second panel is formed of the copper mesh.
Inventors:
KOO GI DO (KR)
Application Number:
PCT/KR2019/005830
Publication Date:
January 23, 2020
Filing Date:
May 15, 2019
Export Citation:
Assignee:
AHAINC CO LTD (KR)
International Classes:
G06F3/041; G06F3/044; G06F3/046
Foreign References:
| KR20090072966A | 2009-07-02 | |||
| KR101618286B1 | 2016-05-04 | |||
| KR101209514B1 | 2012-12-07 | |||
| KR20140129805A | 2014-11-07 | |||
| KR20110057385A | 2011-06-01 |
Attorney, Agent or Firm:
KIM, Jin Dong (KR)
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