Patent ID: 11935489
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 14:
15. An electronic device, comprising:
a display; and
a display control circuit system, comprising a display driver and a host coupled to the display driver, wherein the display driver is coupled to the display, and is configured to drive the display to perform display;
wherein the display driver comprises:
a timing controller;
a transceiver; and
a processor;

wherein the timing controller is configured to send one first pulse of a tearing effect signal in each of a plurality of consecutive first preset times T1, wherein each first preset time T1 has a length of 1/f1, f1 is a first refresh rate of the display, each first pulse of the tearing effect signal indicates to a host to output a corresponding generated Nth frame of display data in a corresponding (N+1)th frame based on the respective first pulse of the tearing effect signal, and N is a positive integer;
wherein the transceiver is configured to receive and send the display data sent by the host;
wherein the timing controller is further configured to send S second pulses of the tearing effect signal when the transceiver does not receive an Nth frame of display data within a third preset time, wherein each pulse of the S second pulses of the tearing effect signal is used to prolong duration of the Nth frame by a second preset time T2, and indicates the host to output the generated Nth frame of display data in the (N+1)th frame based on an Sth second pulse of the tearing effect signal, S is a positive integer, (T1+T2)≤(1/f2), f2 is a second refresh rate of the display, and the first refresh rate is greater than the second refresh rate; and
wherein the processor is coupled to the transceiver, and is configured to:
attempt to receive the Nth frame of display data in the (N+1)th frame, and control, based on the Nth frame of display data when the Nth frame of display data is received, the display to display an Nth frame of image; and

wherein the host is configured to output the generated Nth frame of display data in the (N+1)th frame based on the first pulse or the second pulse of the tearing effect signal.