Invention Grant
- Patent Title: Video audio system
-
Application No.: US15948019Application Date: 2018-04-09
-
Publication No.: US10341774B2Publication Date: 2019-07-02
- Inventor: Daisuke Inoue , Tetsu Miyoshi , Shin Ozawa
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2015-207028 20151021
- Main IPC: H04R5/02
- IPC: H04R5/02 ; B06B1/06 ; H04R17/00 ; H04R7/06

Abstract:
Provided is a video audio system including electroacoustic conversion units which include an electroacoustic conversion film having a macromolecular composite piezoelectric body formed by dispersing piezoelectric body particles in a viscoelastic matrix formed of a macromolecular material that is viscoelastic at normal temperature and thin film electrodes respectively laminated on both surfaces of the macromolecular composite piezoelectric body, curve and support the electroacoustic conversion film, and use at least a part of the electroacoustic conversion film as vibration regions and a display device which is a screen or a video display device to which videos are projected, in which at least one of the electroacoustic conversion units is disposed on a rear surface opposite to a surface of the display device on which videos are displayed, the plurality of vibration regions is arranged on the entire rear surface of the display device, and location information of the vibration regions is included in sound data that are input to the electroacoustic conversion units.
Public/Granted literature
- US20180229271A1 VIDEO AUDIO SYSTEM Public/Granted day:2018-08-16
Information query