| 摘要 |
A display device produces color images by sequentially projecting monochromatic images. Multispectral light is projected via optical means and a filter arrangement with changeable primary color filters onto an imaging device. For each primary color the imaging device produces a number of constant-length pulses corresponding to a desired brightness level. The pulse length is chosen to be as short as possible for a first primary color. The pulse length for the other primary colors is adapted according to the respective share of the corresponding color filters in the color wheel. The time during which secondary colors are produced due to a transition between two primary color filters is increased by increasing the aperture of the optical means, by spatially relocating the focal point of the optical means for a disc-like filter arrangement, or by accordingly adding pure color light at the onset and the end of a transition between two color filter segments which produces secondary color light. Secondary color light is used to increase the brightness of the projected image.
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