Patent ID: 7081874

Claim:
A portable display device comprising: an LCD display module that includes: at least an LCD display, and embedded still image buffer, operatively coupled to the LCD display, and that displays contents of the embedded still image buffer as an image frame on the LCD display wherein the embedded still image buffer is operatively responsive to an external pixel transfer clock signal that controls transfer of pixel data into the embedded still image buffer; first memory that receives decoded motion video as pixel data from a video decoder; processing circuitry, operatively coupled to the memory and to the LCD module, that is operative to: (a) keep the external pixel transfer clock signal off while the memory receives decoded video information, (b) turn the external pixel transfer clock signal on in response to a frame of decoded motion video being available from the memory; (c) transfer the decoded frame from the memory to the embedded still image buffer in the LCD display module; (d) generate an end of frame indication signal indicating that transfer of the decoded frame is complete and turn off the external pixel transfer clock signal to the LCD display module; and (e) repeat (a)–(d) at a frame rate to effect moving video images from the embedded still image buffer.