Patent ID: 11930305
Assignee: SEIKO EPSON CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A circuit apparatus used in a laser projector that projects an image onto a projection surface by using laser beams having different wavelengths or a plurality of colors, the circuit apparatus comprising:
a distortion correction circuit that performs distortion correction on a color basis on display image data corresponding to the plurality of colors;
an output circuit that outputs the display image data as a result of the distortion correction;
a first storage circuit that stores first display image data corresponding to, among the plurality of colors including first, second, and third colors, the first color;
a second storage circuit that stores second display image data corresponding to the second color; and
a third storage circuit that stores third display image data corresponding to the third color,
wherein the distortion correction circuit performs the distortion correction on the color basis by using warp parameters different from one another among the plurality of colors, and
the distortion correction circuit includes:
a first distortion correction circuit that performs the distortion correction on the first display image data from the first storage circuit by using a first warp parameter corresponding to the first color;
a second distortion correction circuit that performs the distortion correction on the second display image data from the second storage circuit by using a second warp parameter corresponding to the second color; and
a third distortion correction circuit that performs the distortion correction on the third display image data from the third storage circuit by using a third warp parameter corresponding to the third color.