Method of testing a display apparatus and a display apparatus tested by the same

A display apparatus, comprising:

• a display panel connected to a plurality of data lines, wherein the display panel is configured to display an image having a plurality of grayscales based on image data;
• a data driver configured to generate a plurality of data voltages based on the image data and a plurality of grayscale compensation data for the plurality of grayscales, respectively, and to apply the plurality of data voltages to the plurality of data lines;
• and
• a timing controller configured to control the data driver, to determine a plurality of minimum compensation data for the plurality of grayscales, respectively, and a plurality of maximum compensation data for the plurality of grayscales, respectively, to set the plurality of grayscale compensation data based on the plurality of minimum compensation data and the plurality of maximum compensation data with respect to the plurality of grayscales, and to optimize a flicker characteristic by selectively changing the plurality of grayscale compensation data based on a measurement of the flicker characteristic, wherein the measurement is obtained from test images that are displayed on the display panel.

A test system for a display apparatus comprising:

• a flicker measurement device configured to output a plurality of flicker values corresponding to a plurality of grayscales included in an image, respectively to the display apparatus;
• and
• the display apparatus comprising:
• a display panel configured to display the image;
• and
• a timing controller configured to determine a plurality of minimum compensation data corresponding to the plurality of grayscales, respectively, and a plurality of maximum compensation data corresponding to the plurality of grayscales, respectively, to set the plurality of grayscale compensation data based on the plurality of minimum compensation data and the plurality of maximum compensation data, and to optimize a flicker characteristic with respect to the plurality of grayscales by selectively changing the plurality of grayscale compensation data based on the plurality of flicker values received from the flicker measurement device.