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:
Oct. 31, 2023
Filed:
May. 25, 2022
Seiko Epson Corporation, Tokyo, JP;
Hiroyuki Hosaka, Matsumoto, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
In a projection-type display device including a liquid crystal panel where panel pixels are arranged in a first direction and a second direction, the polarity of the image signal supplied to each of all panel pixels is set to the same polarity in the same unit period among a plurality of unit periods, and the polarity of the image signal is reversed upon transition from the current frame period to the next frame period. The polarity of the image signal is reversed when a projection pixel is shifted by a light path shifting element unit in the first direction or in the second direction upon transition of the unit period, and the polarity of the image signal is not reversed when it is shifted along a third direction or a fourth direction that intersects the first direction and the second direction.