Driving device of display device and driving method thereof

摘要

A driver for pixels of a display, having pixels arranged into a plurality of pixel blocks including at least two pixels in a row and at least two pixels in a column is presented. The driver includes a first converter, a second converter, and a frame memory. The first converter receives input image signals for a pixel block of the plurality of pixel blocks and generates compressed image signals by compressing the input image signals based on compression reference image signals. The frame memory stores the compressed image signals. The second converter reads the compressed image signals from the frame memory, and restores the compressed image signals based on compression reference image signals to generate restoration image signals. A compression reference image signal for a first pixel of the pixel block is the restoration image signal for a second pixel of a neighboring pixel block. Compression reference image signals for the remaining pixels in the pixel block are restoration image signals for different pixels in the pixel block.

主权项

1. A driving device for a display device comprising:
a first storage unit storing first input image signals of a current frame input from the outside according to a clock signal; a second storage unit storing first compression reference image signals from a previous frame; a first converter,
the first converter generating compression image signals for the current frame by compressing data comprising the first input image signals received from the first storage unit and second input image signals of the current frame received from the outside on the basis of the first compression reference image signals received from the second storage unit,the first converter generating first restoration image signals for the current frame by restoring the compressed image signals for the current frame, andthe first converter storing a portion among the first restoration image signals for the current frame to the second storage unit; a frame memory storing the compressed image signals for the current frame and compressed image signals of a previous frame; and a second converter reading the compressed image signals of the previous frame from the frame memory, and restoring the compressed image signals of the previous frame on the basis of second compression reference image signals to generate second restoration image signals for the previous frame.