PANEL SELF-REFRESH SYSTEM AND METHOD

摘要

A panel self-refresh system includes a timing controller configured to receive a command or an incoming frame from a processor, the incoming frame being forwarded to a display panel in a normal state. The system also includes a frame buffer configured to store the incoming frame in a cache state or an update state, contents of the frame buffer being read as an outgoing frame to the display panel in a self-refresh state. The timing controller generates a reset signal to a gate driver when the processor sends an update command for entering the update state or sends an exit command for entering a resynchronization state, scan signals outputted from a gate driver being de-asserted and staying in a vertical blanking interval until a next incoming frame is received from the processor.

主权项

1. A panel self-refresh system, comprising:
a display panel; a processor configured to send a command or a frame; a timing controller configured to receive the command or receive the frame as an incoming frame, the incoming frame being forwarded to the display panel in a normal state; a frame buffer configured to store the incoming frame in a cache state or an update state, contents of the frame buffer being read as an outgoing frame to the display panel in a self-refresh state; and a gate driver disposed in the display panel and configured to output scan signals; wherein the timing controller generates a reset signal to the gate driver when the processor sends an update command for entering the update state or sends an exit command for entering a resynchronization state, the scan signals of the gate driver being de-asserted and staying in a vertical blanking interval until a next incoming frame is received from the processor, therefore the timing controller synchronizes the incoming frame with the outgoing frame.