Title:
SENSOR DEVICE AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/106459
Kind Code:
A1
Abstract:
The present invention provides a sensor device capable of detecting input information, and a display apparatus. The sensor device is provided with a panel and a control circuit. The panel comprises an insulation layer, a first electrode, and a second electrode. The control circuit comprises a first circuit including a timing control circuit and a first amplifier, and a second circuit including a detection circuit connected to a floating ground wire and electrically isolated from the first circuit. During a first sensing drive period, a first output unit outputs a first synchronization signal, the timing control circuit outputs a second synchronization signal, the first amplifier gives the second synchronization signal to the floating ground wire and the first electrode, and a detector reads a sensor signal change generated in the second electrode.
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Inventors:
TAKADA NAOKI (JP)
YAMAGUCHI HIROSHI (JP)
YAMAMOTO KISHO (JP)
YAMAGUCHI HIROSHI (JP)
YAMAMOTO KISHO (JP)
Application Number:
PCT/JP2020/039996
Publication Date:
June 03, 2021
Filing Date:
October 23, 2020
Export Citation:
Assignee:
JAPAN DISPLAY INC (JP)
International Classes:
G09F9/00; G06F3/041; G06F3/044; G09F9/30
Foreign References:
| JP2019101532A | 2019-06-24 | |||
| JP2013501287A | 2013-01-10 | |||
| JP2019071142A | 2019-05-09 |
Attorney, Agent or Firm:
S & S INTERNATIONAL PPC (JP)
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