Patent ID: 11875740
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 20:
21. A display device comprising:
a display panel including a plurality of pixels;
a timing controller configured to generate compensated image data obtained by compensating for a luminance change according to a temperature of the plurality of pixels, based on input image data received from an outside source; and
a data driver configured to generate a data signal corresponding to the compensated image data and supply the data signal to the pixels,
wherein each of the pixels includes a first sub pixel having a first quantum dot emitting light in a first color and a second sub pixel having a second quantum dot emitting light in a second other color,
wherein the timing controller determines a first load value of the first sub pixel and a second load value of the second sub pixel based on the input image data, generates a first value based on the first load value of the first sub pixel and a light emission efficiency characteristic of the first subpixel according to a temperature of the display panel, generates a second value based on the second load value of the second sub pixel and a light emission efficiency characteristic of the second sub pixel according to the temperature, and generates the compensated image data based on a sum of the first and second values,
wherein each of the pixels further includes a third sub pixel including a scattering body,
wherein in the first sub pixel, when the temperature increases between a first temperature and a preset second temperature higher than the first temperature, the luminance decreases according to the light emission efficiency characteristic according to the temperature of the first quantum dot, wherein in the second sub pixel, when the temperature increases between the first temperature and the second temperature, the luminance increases according to the light emission efficiency characteristic according to the temperature of the second quantum dot, and wherein in the third sub pixel, the luminance is maintained constant regardless of the temperature change between the first temperature and the second temperature.