Method of controlling display panel with video data transmitted through eDP/DP interface and related control circuit

A control circuit for controlling a display panel, comprising:

• a detection circuit, configured to determine whether there is an input video data received at a predetermined time;
• a data output driver, coupled to the detection circuit, configured to output an output video data to the display panel when the detection circuit determines that there is an input video data received at the predetermined time, and stop outputting the output video data when the detection circuit determines that there is no input video data received at the predetermined time;
• and
• an emission control circuit, coupled to the detection circuit, configured to output a clock signal having a first frequency to the display panel when the detection circuit determines that there is an input video data received at the predetermined time, and output the clock signal having a second frequency to the display panel when the detection circuit determines that there is no input video data received at the predetermined time;
• wherein the second frequency is higher than the first frequency.

A method used for a control circuit, for controlling a display panel, the method comprising:

• receiving a first frame of video data;
• outputting the first frame of video data with an emission pulse signal having a first duty cycle to the display panel;
• determining whether a second frame of video data is received at a predetermined time after the first frame of video data is completely received;
• and
• outputting the emission pulse signal having the first duty cycle to the display panel without outputting any video data when determining that the second frame of video data is not received at the predetermined time.

A control circuit for controlling a display panel, comprising:

• a detection circuit, configured to receive a first frame of video data and determine whether a second frame of video data is received at a predetermined time after the first frame of video data is completely received;
• a data output driver, coupled to the detection circuit, configured to output the first frame of video data to the display panel;
• and
• an emission control circuit, coupled to the detection circuit, configured to output an emission pulse signal having a first duty cycle to the display panel;
• wherein the emission control circuit is further configured to output the emission pulse signal having the first duty cycle and the data output driver is further configured to not output any video data when the detection circuit determines that the second frame of video data is not received at the predetermined time.