Driving method and driving apparatus for display panel, and display device

A driving apparatus for a display panel, the display panel having a first resolution, the driving apparatus comprising a processor and a transmission port, wherein the processor is configured to:

• convert RGB signals of an input image having a second resolution into YUV signals corresponding to an output image, a resolution of the output image being not smaller than the second resolution;
• convert the YUV signals obtained in the processor into RGB signals corresponding to the output image;
• and
• convert the RGB signals obtained in the processor into driving signals for driving the display panel,
• wherein the transmission port is configured to:
• output the driving signals obtained in the processor to the display panel,
• wherein the processor is configured to convert the RGB signals of the input image into YUV signals corresponding to the output image by:
• segmenting the input image into N sub-images, N being a positive integer;
• and
• converting RGB signals of each of the sub-images into a group of YUV signals, to obtain N groups of YUV signals,
• wherein, in a case where the input image cannot be segmented into N sub-images having a same resolution, the segmenting the input image into N sub-images comprises:
• segmenting the input image into N initial sub-images, the N initial sub-images including K first initial sub-images having a third resolution and (N-K) second initial sub-images having a fourth resolution, the third resolution being smaller than the fourth resolution, K being a positive integer and smaller than N;
• and
• inserting a predetermined number of blank pixels at a predetermined position of the first initial sub-images, an amount of the blank pixels being equal to a difference between the fourth resolution and the third resolution.