초록 ▼

A method of detecting and compensating for colors displayed by a display system (10) that uses a light source (16) and a color wheel (15). A desired color balance is specified in terms of a power ratio of three primary colors. This ratio is then compared to the actual power of light filtered through

A method of detecting and compensating for colors displayed by a display system (10) that uses a light source (16) and a color wheel (15). A desired color balance is specified in terms of a power ratio of three primary colors. This ratio is then compared to the actual power of light filtered through each color of the color wheel. (FIGS. 2A, 2B). In a first embodiment, the filter transmission characteristics are adjusted. (FIG. 3). In a second embodiment, the size of the color wheel\s segments are changed as well as the display times for data corresponding to each segment. (FIG. 4). The two embodiments can also be combined to achieve a desired color balance.

대표청구항 ▼

A method of providing a desired color balance for a display generated by source light filtered through a color wheel, comprising the steps of: specifying a desired power ratio of colors to be provided by said color wheel; providing said color wheel with at least one filter segment for each color of

A method of providing a desired color balance for a display generated by source light filtered through a color wheel, comprising the steps of: specifying a desired power ratio of colors to be provided by said color wheel; providing said color wheel with at least one filter segment for each color of said color ratio, each said filter segment having a wavelength range that permits specified wavelengths to pass; measuring said source light for each color of said power ratio, as transmitted through all filter segments of said color wheel corresponding to said each color, thereby obtaining a power value for each color; comparing said power value for each color to said power ratio, thereby determining an out-of-balance color; adjusting said wavelength range of one or more filter segments of said color wheel to compensate for said out-of-balance color, such that said power values substantially match said desired power ratio.