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Patent Searching and Data


Title:
VIBRATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/182350
Kind Code:
A1
Abstract:
A vibration device 1, wherein an operation unit 3 has a user-operated operation surface. A plurality of piezoelectric elements 10 are arranged so as to overlap the operation surface when viewed from a direction orthogonal to the operation surface. The plurality of piezoelectric elements 10 are arranged in mutually different positions in a direction along the operation surface. A control unit 5 controls the plurality of piezoelectric elements 10. In response to operation performed on the operation surface by the user, the control unit 5 vibrates, at a first frequency, a piezoelectric element 10 among the plurality of piezoelectric elements 10 which corresponds to a first position on the operation surface at which the operation is performed, and vibrates, at a second frequency different from the first frequency, a piezoelectric element 10 among the plurality of piezoelectric elements 10 which corresponds to a second position, different from the first position, on the operation surface. The second frequency is a frequency in the audible range.

Inventors:
SAITO KAZUKI (JP)
KIJIMA KAORU (JP)
Application Number:
PCT/JP2021/008800
Publication Date:
September 16, 2021
Filing Date:
March 05, 2021
Export Citation:
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Assignee:
TDK CORP (JP)
International Classes:
H04R1/00; G06F3/01; G06F3/041; H04R1/02; H04R17/00
Foreign References:
US20190278428A12019-09-12
US20050052430A12005-03-10
JP2009169612A2009-07-30
JP2012022537A2012-02-02
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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