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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2017/069055
Kind Code:
The present invention includes: an electroacoustic conversion unit provided with an electroacoustic conversion film having a polymer composite piezoelectric substance formed by dispersing piezoelectric particles in a viscoelastic matrix comprising a polymer material indicating viscoelasticity at normal temperature and a thin-film electrode laminated on each of both sides of the polymer composite piezoelectric substance, the electroacoustic conversion film being supported in curved form and at least a portion of the electroacoustic conversion film constituting a vibration area; and a display device that is a screen on which a video is projected or a video display device. At least one electroacoustic conversion unit is placed on the rear of the display device opposite the side of the display device on which a video is displayed, and a plurality of vibration areas are arranged on the entire surface at the rear of the display device, position information pertaining to the vibration areas being included in sound data inputted to the electroacoustic conversion unit.

INOUE Daisuke (577 Ushijima, Kaisei-machi, Ashigara-kami-gu, Kanagawa 77, 〒2588577, JP)
MIYOSHI Tetsu (577 Ushijima, Kaisei-machi, Ashigara-kami-gu, Kanagawa 77, 〒2588577, JP)
OZAWA Shin (577 Ushijima, Kaisei-machi, Ashigara-kami-gu, Kanagawa 77, 〒2588577, JP)
Application Number:
Publication Date:
April 27, 2017
Filing Date:
October 14, 2016
Export Citation:
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FUJIFILM CORPORATION (26-30, Nishiazabu 2-chome Minato-k, Tokyo 20, 〒1068620, JP)
International Classes:
H04R17/00; H04R1/02; H04R1/40
Foreign References:
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (Yusen Iwamoto-cho Bldg. 6F, 3-3 Iwamoto-cho 2-chome, Chiyoda-k, Tokyo 32, 〒1010032, JP)
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