Patent ID: 11967267
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display device comprising:
a display panel including pixels;
an optical sensor configured to measure an optical waveform of the display panel;
a timing controller configured to generate image data based on input image data and generate a first control signal and a second control signal based on a control signal;
a scan driver configured to supply a scan signal to the pixels based on the first control signal;
a data driver configured to generate a data signal corresponding to the image data based on the second control signal and the image data to supply it to the pixels; and
an image controller configured to detect optical characteristic information of the display panel based on the optical waveform, determine a threshold value based on the optical waveform, an image refresh rate of the display panel, and grayscale values corresponding to the input image data, and generate a refresh rate control signal for controlling the image refresh rate based on the optical characteristic information and the threshold value,
wherein the timing controller controls the image refresh rate of the display panel based on the refresh rate control signal.