Patent ID: 7798284

Claim:
An electro-optical device comprising: an electro-optical panel; a sound-production unit including a first surface facing toward the electro-optical panel and a second surface that is opposite the first surface and that faces away from the electro-optical panel, the sound-production unit including a piezo-electric vibrating body; a sound-production frame that holds the sound-production unit, the sound-production frame including a flat internal surface, a through hole opening, and an air inlet that allows passage of air between the sound-production frame and the sound-production unit, the air inlet overlapping the sound-production unit in plan view; a holding frame that holds the electro-optical panel and that is connected to the sound-production frame, the holding frame having a first surface wall facing the electro-optical panel and a second surface wall facing away from the electro-optical panel, the second surface wall also facing the flat internal surface of the sound-production frame, the second surface wall of the holding frame defining a sound-production air space with the sound-production frame, the holding frame including an internal sound-guiding path that is in fluid communication with the sound-production air space and that opens to outside of the holding frame, the holding frame including a projection that is received in the through hole opening of the sound-production frame; a first support member that abuts the second surface of the sound production unit and the sound-production frame to be interposed between the second surface of the sound production unit and the sound-production frame; and a second support member that abuts the flat internal surface of the sound-production frame and the second surface wall of the holding frame to be disposed between both the sound-production frame and the holding frame.