Apparatus for testing display panel and driving method thereof

A method of driving an apparatus for testing a display panel, the method comprising:

• providing, by a driver, a test signal to the display panel;
• acquiring, by an image sensor, image data by photographing the display panel on which an image corresponding to the test signal is displayed;
• calculating, by a luminance calculator, luminance distribution data, based on the image data;
• and
• determining, by a compensation data generator, a compensation value with respect to pixels of the display panel, based on the luminance distribution data,
• wherein the providing of the test signal comprises:
• providing a test signal corresponding to a first gray scale level to a first region comprising a central region of the display panel;
• and
• providing a test signal corresponding to a second gray scale level different from the first gray scale level to a second region.

A system of driving an apparatus for testing a display panel, the system comprising:

• means for providing, by a driver, a test signal to the display panel;
• means for acquiring, by an image sensor, image data by photographing the display panel on which an image corresponding to the test signal is displayed;
• means for calculating, by a luminance calculator, luminance distribution data, based on the image data;
• and
• means for determining, by a compensation data generator, a compensation value with respect to pixels of the display panel, based on the luminance distribution data,
• wherein the providing of the test signal comprises:
• providing a test signal corresponding to a first gray scale level to a first region comprising a central region of the display panel;
• and
• providing a test signal corresponding to a second gray scale level different from the first gray scale level to a second region.