Display driving device, display driving method, and display device

A display driving method for controlling a display panel comprising a plurality of pixel units to display, the display driving method comprising:

• performing, when a first polarity frame image is displayed, line over driver compensation on the pixel units based on line over driver compensation data corresponding to the first polarity frame image, to determine a target over driver grayscale of the pixel units;
• and
• performing, when a second polarity frame image is displayed, line over driver compensation on the pixel units based on line over driver compensation data corresponding to the second polarity frame image, to determine a target over driver grayscale of the pixel units;
• wherein the first polarity and the second polarity are opposite to each other, and the line over driver compensation data corresponding to the first polarity frame image is different from the line over driver compensation data corresponding to the second polarity frame image,
• wherein the line over driver compensation data comprises:
• a grayscale compensation table configured to record different combinations of previous line standard grayscales and current line standard grayscales, and initial over driver grayscales corresponding to the combinations;
• and
• the step of performing line over driver compensation on the pixel units comprises:
• determining, according to the previous line standard grayscale and the current line standard grayscale corresponding to a pixel unit and the grayscale compensation table of the line over driver compensation data corresponding to a current frame image, an initial over driver grayscale corresponding to the pixel unit;
• and
• determining, according to the determined initial over driver grayscale, a target over driver grayscale of the pixel unit in the current frame image,
• wherein the display panel is divided into at least one display area comprising at least one of the pixel units, and the line over driver compensation data further comprises:
• a gain compensation table configured to record grayscale gain values corresponding to the at least one display area;
• and
• before determining, according to the determined initial over driver grayscale, the target over driver grayscale of the pixel unit in the current frame image, the method further comprises:
• determining, according to a position of the display area where the pixel unit is located and the gain compensation table of the line over driver compensation data corresponding to the current frame image, a grayscale gain value corresponding to the pixel unit;
• and
• the step of determining, according to the determined initial over driver grayscale, the target over driver grayscale of the pixel unit in the current frame image comprises:
• determining, according to the determined initial over driver grayscale and the grayscale gain value, the target over driver grayscale of the pixel unit in the current frame image.