公开(公告)号：US12211409B2

公开(公告)日：2025-01-28

申请号：US18239937

申请日：2023-08-30

Applicant: SEIKO EPSON CORPORATION

Inventor： Toru Aoki ,  Hiroyuki Hosaka ,  Yusuke Komuro

IPC: G09G3/00 ,  G09G3/36

Abstract: A projection-type display apparatus includes a liquid crystal panel including a panel pixel, an optical path shifting element that shifts a projected pixel projected from the panel pixel, and a display control circuit that controls the liquid crystal panel and the optical path shifting element. The display control circuit supplies, to the liquid crystal panel, the same data signal and controls the projected pixel to be at a same position in each of a unit period f1-1 and a unit period f2-1, and controls the optical path shifting element to cause a shift direction from the projected pixel before the shift toward the projected pixel after the shift from a unit period f1-2 to a unit period f1-4 to be opposite to the shift direction from the projected pixel before the shift toward the projected pixel after the shift from a unit period f2-2 to a unit period f2-4.

公开(公告)号：US20240331600A1

公开(公告)日：2024-10-03

申请号：US18617892

申请日：2024-03-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Toru AOKI ,  Kazuhisa Mizusako ,  Yusuke Komuro

IPC: G09G3/00 ,  G09G3/36

CPC classification number: G09G3/007 ,  G09G3/36 ,  G09G2320/0247

Abstract: A projection type display apparatus includes a liquid crystal panel including a first panel pixel, a liquid crystal panel including a second panel pixel, an optical path shift element that shifts projection positions of the first panel pixel and the second panel pixel, and a display control circuit that controls the liquid crystal panel and the optical path shift element. The display control circuit causes the optical path shift element to shift the projection position from a first unit period to a fourth unit period of one frame period for each unit period. A centroid of a path on which the first panel pixel is projected from the first unit period to the fourth unit period is different from a centroid of a path on which the second panel pixel is projected from the first unit period to the fourth unit period.

公开(公告)号：US12198587B2

公开(公告)日：2025-01-14

申请号：US18239926

申请日：2023-08-30

Applicant: SEIKO EPSON CORPORATION

Inventor： Toru Aoki ,  Hiroyuki Hosaka ,  Yusuke Komuro

IPC: G09G3/00

Abstract: A projection-type display apparatus includes a liquid crystal panel including a panel pixel, an optical path shifting element that shifts a projected pixel projected from the panel pixel, and a display control circuit that controls the liquid crystal panel and the optical path shifting element. The display control circuit supplies, to the liquid crystal panel, the same data signal and controls the projected pixel to be at a same position in a unit period f1-1 and a unit period f2-1 period, and controls the optical path shifting element to cause the position of the projected pixel in each of a unit period f1-2 to a unit period f1-4, to be different from the position of the projected pixel in a respective one of a unit period f2-2 to a unit period f2-4.

公开(公告)号：US12260795B2

公开(公告)日：2025-03-25

申请号：US18617892

申请日：2024-03-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Toru Aoki ,  Kazuhisa Mizusako ,  Yusuke Komuro

IPC: G09G3/36 ,  G09G3/00

Abstract: A projection type display apparatus includes a liquid crystal panel including a first panel pixel, a liquid crystal panel including a second panel pixel, an optical path shift element that shifts projection positions of the first panel pixel and the second panel pixel, and a display control circuit that controls the liquid crystal panel and the optical path shift element. The display control circuit causes the optical path shift element to shift the projection position from a first unit period to a fourth unit period of one frame period for each unit period. A centroid of a path on which the first panel pixel is projected from the first unit period to the fourth unit period is different from a centroid of a path on which the second panel pixel is projected from the first unit period to the fourth unit period.