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Patent Searching and Data


Title:
INPUT DEVICE AND INPUT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/010037
Kind Code:
A1
Abstract:
This input device comprises: a detection surface configured to be operated by an operating body; a fixed electrode; a movable electrode; a first terminal and a second terminal configured to connect to the outside of the input device; and a direct electrical path electrically connecting the movable electrode and the second terminal without the use of capacitance therebetween. The movable electrode has a lower surface that faces an upper surface of the fixed electrode, is capacitively coupled to the fixed electrode, and is displaced so as to approach the fixed electrode in response to the operating body pressing on the detection surface. The first terminal is configured to output, to outside of the input device, electrical signals including a change in capacitance between the fixed electrode and the movable electrode. The second terminal is configured to output, from the movable electrode to outside of the input device, electrical signals including a change in capacitance between the operating body and the movable electrode. The input device can improve the detection sensitivity of the approach or the contact of the operating body.

Inventors:
YAMABAYASHI MASAAKI
SAITO YUTA
MATSUMOTO KENICHI
NAKAE RYO
Application Number:
PCT/JP2020/021552
Publication Date:
January 21, 2021
Filing Date:
June 01, 2020
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01H36/00; G06F3/02
Foreign References:
JP2014123430A2014-07-03
JP2017088105A2017-05-25
JP2004045243A2004-02-12
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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