The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 2021
Filed:
Nov. 25, 2016
Sony Corporation, Tokyo, JP;
Takehiro Miyagawa, Aichi, JP;
Tsutomu Nagumo, Aichi, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
A projection-type display apparatus includes a driver unit and a diaphragm unit. The diaphragm unit includes a holding frame that has an opening, a film that is bonded to a film bonding surface as one surface of the holding frame with the opening being covered with the film, a diaphragm that is held on an inner side of the holding frame while being bonded to the film, and a transmission beam that transmits vibration of the vibrating portion to the diaphragm. The film has a first film surface and a second film surface on the opposite side to the first film surface, the film bonding surface and the diaphragm being bonded to the first film surface.