| 摘要 |
Compensation of the slow down of an LCD (FE) cell's response time when such devices are used in color sequential mode as an analog transmittance modulator to display colors of various shades is accomplished by a method, called deterministic-level-difference-boosting or DLDB for short. This method includes converting input data of ratios of color mixes into another set of pre-calculated or pre-measured signals before these signals are applied to the LCD (FE) to control its transmittance. By taking advantage of the periodical nature of transmittance change in color sequential operation, the compensated signal will minimize the error caused by slow-down of LCD response. Where the LCD response time is too slow to accomplish transition to a desired target transmittance level, the target level is scaled down for all colors to be displayed at the pixels to maintain correct color mixing ratio. Another aspect of this invention is a display device comprising a LCD front end (FE), a color light source (BE) and a unit (CU) that can perform the above described data conversion. |
