Title:
FLEXIBLE SUBSTRATE, PIEZOELECTRIC ELEMENT UNIT, AND TACTILE PRESENTATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/235301
Kind Code:
A1
Abstract:
A flexible substrate 3 comprises: an opening 30 from which an upper electrode 52 and a lower electrode 50 of a piezoelectric element 5 are exposed; an upper electrode wiring part 31 in which upper wiring 4a that is longer than a minimum length L1 required for wiring from the edge of the opening 30 to the upper electrode 52 and is electrically connected to the upper electrode 52 is provided; a lower electrode wiring part 32 in which lower wiring 4b that is longer than a minimum length L2 required for wiring from the edge of the opening 30 to the lower electrode 50 and is electrically connected to the lower electrode 50 is provided. A tactile presentation device 1 is provided with a piezoelectric element unit 2 comprising this flexible substrate 3, and the piezoelectric element 5 that detects a load accompanying a push operation performed on an operation surface 120, and presents tactile sense by vibration to the operation surface 120.
Inventors:
HASHIMOTO HARUHIKO (JP)
MORI YUKI (JP)
MORI YUKI (JP)
Application Number:
PCT/JP2019/021105
Publication Date:
December 12, 2019
Filing Date:
May 28, 2019
Export Citation:
Assignee:
TOKAI RIKA CO LTD (JP)
International Classes:
H01L41/047; G01L1/16; H01H13/00; H01L41/09; H01L41/187; H01L41/193
Domestic Patent References:
| WO2013105518A1 | 2013-07-18 |
Foreign References:
| JP2005176332A | 2005-06-30 | |||
| JP2007142372A | 2007-06-07 |
Attorney, Agent or Firm:
HIRATA & PARTNERS (JP)
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