DISPLAY PANEL DRIVING APPARATUS, METHOD OF DRIVING DISPLAY PANEL USING THE SAME AND DISPLAY APPARATUS HAVING THE SAME

摘要

A display panel driving apparatus includes a data processing part. The data processing part calculates a first pretilt value of previous image data to output a first pretilt signal, calculates a second pretilt value of current image data to output a second pretilt signal, analyze a luminance distribution of unit pixels from image data to output luminance distribution analysis data, analyzes a color pixel to which a pretilt is applied based on the unit pixel from the image data to output color analysis data, outputs a determination signal indicating whether the pretilt is applied to the image data, according to the luminance distribution analysis data and the color analysis data, and outputs pretilt compensation image data according to the first pretilt signal, the second pretilt signal and the determination signal, as compensation image data.

主权项

1. A display panel driving apparatus comprising:
a processor configured to receive an image data and generate a determination signal based on a current image data derived from the image data; the processor including:
a frame memory unit configured to store the image data, and output a previous image data and the current image data;a pretilt value calculator configured to calculate a first pretilt value of the previous image data, calculate a second pretilt value of the current image data and output the first pretilt value and the second pretilt value; andan image data compensator configured to output the image data or a pretilt compensation image data according to the first pretilt value, the second pretilt value and the determination signal; a data driver configured to generate a data signal based on the pretilt compensation image data output from the processor, and output the data signal to a data line of a display panel; and a gate driver configured to output a gate signal to a gate line of the display panel.