Patent ID: 7969450

Claim:
A method for optimizing display colors of a digital light processing projector, the projector having a first gamma curve built therein, the method comprising: producing a first image on a screen using the digital light processing projector according to the first gamma curve; detecting the first image to obtain actual brightness proportions of red, green, and blue light components associated with the first image at a time t; obtaining the standard brightness proportions of red, green, and blue light components for an image produced by a standard digital light processing projector at the same time t; calculating a decay ratio of the actual brightness proportions to the standard brightness proportions respectively, and determining which decay ratio thereof is smallest; adjusting time t for the other two light components to achieve the smallest decay ratio thereby achieving three times: t 1 , t 2 , and t 3 respectively corresponding to the three light components so that each light component achieves the same smallest decay ratio; adjusting the actual brightness proportions according to t 1 , t 2 , and t 3 to obtain the standard brightness proportions to form a second image; detecting the second image to obtain a color coordinate thereof; adjusting the color coordinate of the second image to a pre-set standard color coordinate; changing the first gamma curve to form a second gamma curve according to the adjusted color coordinate of the second image; and storing the second gamma curve.