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.

Date of Patent:
Jul. 28, 2026

Filed:

Jan. 30, 2025
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Yuki Osachi, Matsumoto, JP;

Kazuhisa Mizusako, Shiojiri, JP;

Toru Aoki, Shiojiri, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/00 (2006.01); G09G 3/36 (2006.01); H04N 9/31 (2006.01);
U.S. Cl.
CPC ...
G09G 3/007 (2013.01); G09G 3/002 (2013.01); G09G 3/3607 (2013.01); H04N 9/3188 (2013.01); G09G 2320/043 (2013.01);
Abstract

A projection display device including a liquid crystal panel including a panel pixel, an optical path shifting element that shifts a projection position of a projection pixel projected every four unit period for example, and a display control circuit that controls the liquid crystal panel and the optical path shifting element are provided. The display control circuit supplies a data signal corresponding to a gradation level designated by video pixel data in video data to the panel pixel for each of the unit periods, controls the projection position for each of the unit periods for the optical path shifting element, and the optical path shifting element causes shifting to a target projection position that is a target in response to passage of the target projection position, for each unit period.


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