IP Library › Granted Patent US 11,297,290
Granted Patent B2
US 11,297,290 · App. 16/672,589 · Granted Apr 5, 2022

Projector and method for controlling projector

Inventors: Hiroyuki Hosaka (Matsumoto, JP); Tetsuro Yamazaki (Shiojiri, JP)
Assignee: SEIKO EPSON CORPORATION
H04N9/3155G02F1/13363G02F1/133553H04N9/3197
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Quick Facts
Patent No.
US 11,297,290
App. No.
16/672,589
Granted
Apr 5, 2022
Kind
B2
Abstract

A projector is provided that includes a light source configured to radiate light, an electro-optical panel including a pixel circuit configured to receive light from the light source and emit the light, and an optical axis shifting element configured to shift an optical axis of the light emitted from the pixel circuit, with the projector being configured to display a pixel on a projection surface, based on the light emitted from the pixel circuit via the optical axis shifting element. When shifting a position of the pixel on the projection surface from a first position to a second position in a first direction, the optical axis shifting element shifts an optical axis of the light emitted from the pixel circuit using a path different from a shortest path from the first position to the second position.

Claims (7)

1. A method for controlling a projector including:

(i) a light source configured to radiate light, (ii) an electro-optical panel configured to receive light from the light source and emit the light, (iii) the projector configured to shift an optical axis of the light emitted from the electro-optical panel, the projector being configured to display a pixel on a projection surface, based on the light emitted from the electro-optical panel, the method comprising:

driving the projector to shift a position of the pixel on the projection surface successively from a first position that is adjacent to a second position in a first direction, the projector driven to shift an optical axis of the light emitted from the electro-optical panel using a path different from a shortest path from the first position to the second position,

driving the projector to shift a position of the pixel on the projection surface from the second position to a third position in a second direction intersecting with the first direction, the projector being driven to shift the optical axis of the light emitted from the electro-optical panel using a path different from a shortest path from the second position to the third position,

driving the projector to shift a position of the pixel on the projection surface from the third position to a fourth position in a third direction opposite to the first direction, the projector being drive to shift the optical axis of the light emitted from the electro-optical panel using a path different from a shortest path from the third position to the fourth position,

driving the projector to shift a position of the pixel on the projection surface from the fourth position to the first position in a fourth direction opposite to the second direction, the projector being driven to shift the optical axis of the light emitted from the electro-optical panel using a path different from a shortest path from the fourth position to the first position, and

when shifting a position of the pixel on the projection surface from the first position to the second position, from the second position to the third position, from the third position to the fourth position, and from the fourth position to the first position, the projector is driven to shift the pixel on the projection surface using a path including a fifth position between each of the first and second positions, second and third positions, third and fourth positions, and fourth and first positions, wherein the fifth position is surrounded by the first position, the second position, the third position, and the fourth position.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 4, 2019
From: HOSAKA, HIROYUKI; YAMAZAKI, TETSURO
To: SEIKO EPSON CORPORATION
Reel/Frame 050900/0685 →
Priority Claims (1)
JP JP2018-208272 · Nov 5, 2018 · national
Continuity (1)
Related Publication 20200145627A1 · May 7, 2020