Patent ID: 7284867

Claim:
A projector comprising: a light source that projects an image onto a screen in accordance with a video signal input to the projector; a storage unit that stores color levels of red, green and blue for a predesignated ideal white; a color detection unit that receives light reflected by the screen when an image of white light is projected onto the screen, and detects the color levels of red, green and blue of the reflected light; a calculation unit that calculates a correction value to obtain a match between a balance for the color levels stored in the storage unit and a balance for the color levels of the reflected light detected by the color detection unit; a correction unit that employs the correction value to correct color levels of the video signal; a projector body that includes the light source, the storage unit, the calculation unit, and the correction unit; a remote control unit that is provided separately from the projector body and includes the color detection unit; a transmission unit provided in the remote control unit that transmits the color levels detected by the color detection unit; and a reception unit provided in the projector body that receives the color levels transmitted from the transmission unit, wherein the calculation unit calculates the correction value by matching a ratio in the reflected light and in the ideal white, the ratio between a color level of a reference color selected from among the red, green and blue and a color level of the remaining two colors, and wherein the correction unit employs the correction value to correct the color levels of the video signal for the two colors except for the reference color.