Display device, display device luminance compensation method and electronic device

A display device luminance compensation method, for compensating luminance of a display device comprising a display panel including a plurality of pixels and configured to display an image and a driving controller configured to drive the display panel and receive an image signal, comprising:

• generating a grayscale lookup table in which compensation luminance according to grayscale is stored by using multi-time programming (MTP);
• outputting a driving frequency of the display panel;
• outputting a target luminance and a target grayscale of the image based on the image signal;
• outputting a first compensation luminance based on the driving frequency, the target luminance, the target grayscale, and the grayscale lookup table;
• and
• displaying the image based on the first compensation luminance,
• wherein the driving frequency includes a first driving frequency and a second driving frequency having a lower frequency than the first driving frequency,
• the first compensation luminance includes a first frequency compensation luminance output at the first driving frequency and a second frequency compensation luminance output at the second driving frequency, and
• the second frequency compensation luminance is higher than the first frequency compensation luminance.

An electronic device comprising:

• a display panel including a plurality of pixels and configured to display an image;
• a driving controller configured to drive the display panel;
• and
• a processor configured to drive the driving controller,
• wherein the driving controller includes:
• a memory in which a grayscale lookup table is stored;
• a frequency determiner configured to determine a driving frequency of the display panel;
• a luminance determiner configured to determine a target luminance and a target grayscale of the image;
• and
• a first luminance compensator configured to output a first compensation luminance based on the grayscale lookup table, the driving frequency, the target luminance, and the grayscale,
• wherein the driving controller is configured to control the display panel to display the image based on the first compensation luminance,
• the driving frequency includes a first driving frequency and a second driving frequency having a lower frequency than the first driving frequency,
• the first compensation luminance includes a first frequency compensation luminance output at the first driving frequency and a second frequency compensation luminance output at the second driving frequency, and
• the second frequency compensation luminance is higher than the first frequency compensation luminance.