Patent ID: 8292437

Claim:
A video projector for displaying a picture based on a video signal, the video projector comprising: a first LCD panel for red light; a second LCD panel for green light; a third LCD panel for blue light; a light source which emits light toward the first to third LCD panels; a modulated light computer which determines a correction coefficient for reducing the amount of light emitted from the light source toward the first to third LCD panels when temperature load of at least one of the first to third LCD panels increases wherein the modulated light computer computes a first average picture level for red light, a second average picture level for green light, and a third average picture level for blue light and determines the correction coefficient in accordance with a deviation between the first to third average picture levels; and an emitted light amount control unit which corrects the video signal with the correction coefficient and controls the amount of light emitted from the light source toward the first to third LCD panels.