US 12,260,795 B2
Projection type display apparatus
Toru Aoki, Shiojiri (JP); Kazuhisa Mizusako, Shiojiri (JP); and Yusuke Komuro, Azumino (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Mar. 27, 2024, as Appl. No. 18/617,892.
Claims priority of application No. 2023-051087 (JP), filed on Mar. 28, 2023.
Prior Publication US 2024/0331600 A1, Oct. 3, 2024
Int. Cl. G09G 3/36 (2006.01); G09G 3/00 (2006.01)
CPC G09G 3/007 (2013.01) [G09G 3/36 (2013.01); G09G 2320/0247 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A projection type display apparatus comprising:
a first liquid crystal panel including a first panel pixel corresponding to first light;
a second liquid crystal panel including a second panel pixel corresponding to second light;
an optical path shift element configured to shift projection positions of the first panel pixel and the second panel pixel; and
a display control circuit configured to control the first liquid crystal panel, the second liquid crystal panel, and the optical path shift element, wherein
the display control circuit
causes the optical path shift element to shift the projection position every k unit period from a first unit period to a k-th unit period included in one frame period, k being an integer equal to or greater than 2 included in one frame period,
converts pixel data of the first light among pixel data constituting a video image, the pixel data corresponding to the projection position, for each unit period and supplies the converted pixel data to the first panel pixel, and
converts pixel data of the second light, the pixel data corresponding to the projection position, for each unit period and supplies the converted pixel data to the second panel pixel, and
a centroid of a path on which the first panel pixel is projected from the first unit period to the k-th 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 k-th unit period.