US Patent No. 10,068,516

DISPLAY DEVICE HAVING TEMPERATURE COMPENSATION AND METHOD OF DRIVING THE SAME


Patent No. 10,068,516
Issue Date September 04, 2018
Title Display Device Having Temperature Compensation And Method Of Driving The Same
Inventorship Nam-Gon Choi, Yongin-si (KR)
Joon-Chul Goh, Hwaseong-si (KR)
Gigeun Kim, Seoul (KR)
Byungsun Kim, Seoul (KR)
Jung-Won Kim, Seoul (KR)
HongSoo Kim, Hwaseong-si (KR)
Donggyu Lee, Seoul (KR)
Jakyoung Jin, Daegu (KR)
Bonghyun You, Yongin-si (KR)
Assignee Samsung Display Co., Ltd., Yongin-si (KR)

Claim of US Patent No. 10,068,516

1. A display device comprising:a timing controller to generate output image data;
a data driver to convert the output image data to a data voltage;
a display panel comprising a plurality of areas to display an image in accordance with the data voltage; and
a temperature sensor to sense an external temperature,
wherein the timing controller comprises:
a first compensator configured to receive input image data and convert the input image data to first image data on the basis of a color compensation value;
a second compensator configured to receive the first image data, to select a temperature compensation value according to the external temperature, and to convert the first image data to second image data on the basis of the selected temperature compensation value; and
a third compensator configured to select a kickback voltage compensation value according to an area from among the plurality of areas and to convert the second image data to the output image data on the basis of the selected kickback voltage compensation value,
wherein:
the color compensation value comprises a high-color compensation value and a low-color compensation value;
the first compensator converts the input image data to first high image data on the basis of the high-color compensation value, converts the input image data to first low image data on the basis of the low-color compensation value, and outputs the first high image data and the first low image data as the first image data;
the second compensator converts the first high image data and the first low image data to second high image data and second low image data, respectively, on the basis of the selected temperature compensation value and outputs the second high image data and the second low image data as the second image data; and
the third compensator converts the second high image data and the second low image data to output high image data and output low image data, respectively, on the basis of the kickback voltage compensation value selected according to the areas and outputs the output high image data and the output low image data as the output image data.