SIGNAL PROCESSING DEVICE AND PROJECTION VIDEO DISPLAY DEVICE

摘要

PPROBLEM TO BE SOLVED: To provide a signal processing device and a projection video display device which effectively utilize the color reproduction range of a display apparatus while suppressing a difference between color coordinates of the image and color coordinates of the actual object to some degree. PSOLUTION: The signal processing device 200 includes: a color coordinate adjuster 260 performing color coordinate adjustment processing for adjusting color coordinates of an image input signal according to the color reproduction range of the display apparatus; a brightness adjuster 230 performing brightness adjustment processing for adjusting the brightness component of the video input signal; and a coefficient controller 220 controlling a color coordinate adjustment coefficient and a brightness adjustment coefficient. The coefficient controller 220 controls the brightness adjustment coefficient so as to decrease the brightness component of the video input signal when the saturation of a pixel having a first hue is high. The coefficient controller 220 also controls the brightness adjustment coefficient so as to increase the brightness component of the video input signal when the saturation of a pixel having a second hue is high, and decreases the brightness adjustment coefficient when increasing the color coordinate adjustment coefficient. PCOPYRIGHT: (C)2010,JPO&INPIT