Title:
TOUCH DETECTION DEVICE, TOUCH DETECTION METHOD FOR DISPLAY DEVICE, AND DISPLAY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/183976
Kind Code:
A1
Abstract:
A detection value acquisition unit 76a acquires a plurality of detection values based on the capacitance of each of a plurality of common electrodes arranged in a matrix. A detection value calculation unit 76b calculates a detection value in a plurality of block regions, each including two or more common electrodes among the plurality of common electrodes, on the basis of the plurality of detection values acquired by the detection value acquisition unit 76a. A touch detection unit 76c detects if a conductor touches a display screen of a display device 22 on the basis of the detection value of each of the plurality of block regions calculated by the detection value calculation unit 76b. The detection value calculation unit 76b calculates the detection value in each of the plurality of block regions within the display screen on the basis of the detection value of each of the two or more common electrodes included in each of the plurality of block regions.
Inventors:
HATANO TAKASHI
Application Number:
PCT/JP2020/003878
Publication Date:
September 17, 2020
Filing Date:
February 03, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
G09F9/30; G02F1/1333; G02F1/1368; G06F3/041
Foreign References:
| JP2015194987A | 2015-11-05 | |||
| JP2014130350A | 2014-07-10 |
Attorney, Agent or Firm:
MUNETA Satoshi (JP)
Download PDF:
Previous Patent: DISPLAY SYSTEM
Next Patent: COUNTER UNIT, COUNTER UNIT CONTROL METHOD, CONTROL DEVICE, AND CONTROL SYSTEM
Next Patent: COUNTER UNIT, COUNTER UNIT CONTROL METHOD, CONTROL DEVICE, AND CONTROL SYSTEM