Provided are a display driving chip, a display apparatus and a display driving method. The display driving chip includes a gaze tracker, an image receiver, an image parser and an image driver, wherein the gaze tracker is configured to achieve real-time locating for the pupil center of human eyes and real-time calculation for gaze point coordinates, and output the gaze point coordinates of human eyes to the image parser; the image receiver is configured to receive image data to be played through a first image interface and input the image data to be played to the image parser; the image parser is configured to compress or decompress the image data to be played according to the gaze coordinates of human eyes and output the image data to the image driver.