Systems and methods for controlling drive signals in spatial light modulator displays

摘要

Methods and systems are provided for processing control values for a backlight and/or a display modulation layer of a display. A ramping pattern is determined based on the difference between new and old control values. A blanking pattern is determined based on the motion detected in frame regions. The ramping pattern or blanking pattern may take into consideration the display modulation layer response characteristics. The ramping pattern and/or blanking pattern is applied to control values for the backlight and/or display modulation layer.

主权项

1. A method for processing control values for a backlight and drive signals for a display modulation layer, the backlight having an array of light sources, the method comprising, for each light source:
receiving image data for a new frame; determining a new control value for the backlight based at least in part on the new frame of image data; determining a difference between the new control value for the backlight and an old control value for the backlight for an old frame of image data; generating an intermediate control signal for the backlight based at least in part on the difference in control values and a desired ramping pattern, if the difference between the old control value and the new control value is greater than a threshold; generating a blanking pattern for the backlight, the blanking pattern based in part on the identification of motion over a set of image frames; and outputting a final control signal to the backlight based on the intermediate control signal and the blanking pattern.