Driving controller, display apparatus including the same and method of driving display panel using the same

A display apparatus comprising:

• a display panel configured to display an image based on input image data;
• a data driver;
• and
• a driving controller including a logo detector, the logo detector comprising:
• a histogram extractor which receives the input image data and is configured to extract a first histogram from logo area data of the input image data,
• a first histogram regenerator electrically connected to the histogram extractor and configured to receive the first histogram from the histogram extractor to generate a second histogram based on the first histogram, and
• a logo map determiner electrically connected to the histogram extractor and the first histogram regenerator, and configured to select one of the first histogram and the second histogram to generate a first logo map based on a number of pixels in a first logo area of the first histogram,
• wherein the driving controller is configured to compensate the logo area data of the input image data using the first logo map to generate a data signal;
• and
• wherein the data driver is configured to convert the data signal to a data voltage and configured to output the data voltage to the display panel.

A method of driving a display panel, the method comprising:

• extracting a first histogram from logo area data of input image data;
• generating a second histogram based on the first histogram;
• selecting one of the first histogram and the second histogram to generate a first logo map based on a number of pixels in a first logo area of the first histogram;
• compensating the logo area data of the input image data using the first logo map;
• generating a data signal based on the input image data having the compensated logo area data;
• converting the data signal to a data voltage;
• and
• outputting the data voltage to the display panel.