Patent ID: 7270425
Filing Date: 2007-09-18
Classification: G02B,G09G,H04N

Abstract:
1. A projection type video display, comprising: a first solid light source that emits a light in red; a second solid light source that emits a light in green; a third solid light source that emits a light in blue; a display panel for receiving and modulating said lights in colors from said light sources; a means for projecting a full color image light formed of said modulated lights in colors; an optimal processing system for determining the highest value of an intensity of each color in 1-frame video; a light source adjustment means for adjusting an amount of emitted light of said solid light sources by controlling power supplied thereto based on the highest value for each color in 1-frame video; and a means for controlling a driving signal to the display panel so as to correspond to an adjustment of the amount of the emitted lights in respective colors.