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:
Jan. 04, 2022
Filed:
Jul. 10, 2020
Seiko Epson Corporation, Tokyo, JP;
Masakazu Nishida, Chino, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A projection-type display apparatus synthesizes and emits light emitted from a plurality of liquid crystal devices with a projection optical system. Provided that a liquid crystal at an inner side of a seal material in the plurality of liquid crystal devices is V1 in volume and a liquid crystal in a display region is V2 in volume in the plurality of liquid crystal devices, in a second liquid crystal device (a liquid crystal device for blue light) on which light having a wavelength shorter than the wavelength of light being incident on a first liquid crystal device (a liquid crystal device for green light) is incident on the display region, a liquid crystal volume ratio V1/V2 is greater than that of the first liquid crystal device, among the plurality of liquid crystal devices.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile