METHOD FOR REDUCING BANDWIDTH AND FRAME BUFFER SIZE IN DIGITAL PULSE-WIDTH-MODULATED DISPLAY SYSTEM

摘要

PURPOSE: A method for reducing bandwidth and frame buffer size in a digital pulse-width-modulated display system is provided to minimize the total buffer capacity requirements by reducing the average delay of data before it is displayed. CONSTITUTION: A controller organized the data in a memory into a plurality of buffers, each buffer having only bits of like weight. The data is collected as groups within the buffers. The data is then coupled to a display device as the groups of like-weighted bits after a predetermined fraction of a frame time for producing the desired PWM signal. Each bit of the incoming video data is stored for a fraction of a frame time.