Display device, method of generating compensation data for display device, and device for generating compensation data

A device for generating compensation data for pixels, the device comprising:

• a camera that generates a first camera image by photographing test images displayed by pixels of a display device;
• and
• a test controller that inputs a test input signal to each of the pixels and senses corresponding test outputs, the test input signal being a test current or a test voltage, wherein
• the test controller generates weights for the pixels based on the test outputs, generates a second camera image by applying the weights to the first camera image, and generates compensation data for the pixels using the second camera image.

A display device comprising:

• a plurality of pixels;
• a sensing unit that senses corresponding test outputs from the pixels to which a test input signal is applied, the test input signal being at least one of a test current and a test voltage;
• a memory that provides first compensation data that is optical compensation data;
• and
• a compensation data correction unit that generates second compensation data by applying weights based on the test outputs to the first compensation data.