Display device and driving method therefor

A driving method of a display device, the display device comprising:

• a display panel, comprising a plurality of pixel islands arranged in an array in a row direction and a column direction, wherein each of the plurality of pixel islands comprises n sub-pixels arranged at intervals in the row direction, and n is an integer greater than 1;
• and
• a light splitting assembly, located at a display side of the display panel, wherein the light splitting assembly comprises a plurality of light splitting repeating units extending in the column direction and successively arranged in the row direction;
• each of the light splitting repeating units comprises M light splitting structures extending in the column direction and successively arranged in the row direction;
• each light splitting repeating unit correspondingly covers K columns of pixel islands;
• and M and K are not equal, and a projection width of a main lobe angle of view formed by light emitted by K×n sub-pixels at an optimal viewing distance of the display device is greater than or equal to ⅔ of a pupil distance;
• wherein the method comprises:
• determining a first image driving signal corresponding to each of the plurality of pixel islands according to an image to be displayed in a two-dimensional display mode, and loading the corresponding first image driving signal to all sub-pixels in the pixel islands to form a two-dimensional image;
• and
• determining a gaze region and a non-gaze region of a user in the display device in a three-dimensional display mode, driving the gaze region to display an image with a first resolution and driving the non-gaze region to display an image with a second resolution according to the image to be displayed, wherein the first resolution is higher than the second resolution;
• wherein the driving the gaze region to display the image with the first resolution and driving the non-gaze region to display the image with the second resolution according to the image to be displayed comprises:
• determining coordinates of the user's eyes through an eye tracking system, and determining a left eye view and a right eye view according to the coordinates of the user's eyes;
• rendering a plurality of first resolution images corresponding to the first resolution and a plurality of second resolution images corresponding to the second resolution according to the left eye view and the right eye view;
• determining a sub-pixel corresponding to the left eye view and a sub-pixel corresponding to the right eye view in each pixel island group, wherein each pixel island group comprises K columns of pixel islands correspondingly covered by a light splitting repeating unit, and a direction of a connecting line of left and right eyes of the user is parallel to the row direction;
• providing a driving signal corresponding to the left eye view to the sub-pixel corresponding to the left eye view, and providing a driving signal corresponding to the right eye view to the sub-pixel corresponding to the right eye view according to the first resolution images in the gaze region;
• and
• providing a driving signal corresponding to the left eye view to the sub-pixel corresponding to the left eye view, and providing a driving signal corresponding to the right eye view to the sub-pixel corresponding to the right eye view according to the second resolution images in the non-gaze region;
• wherein the eye tracking system comprises N/2 first cameras and N/2 second cameras, wherein N=K×n and K×n is an even number;
• the determining coordinates of the user's eyes through the eye tracking system, and determining the left eye view and the right eye view according to the coordinates of the user's eyes comprises:
• determining central coordinates of the user's eyes and a central viewpoint corresponding to the central coordinates;
• setting (N−1) first viewpoints in a region corresponding to the user's left eye according to a preset viewpoint interval from the central viewpoint, and setting N second viewpoints in a region corresponding to the user's right eye according to the preset viewpoint interval from the central viewpoint;
• and
• setting the N/2 first cameras respectively at the (N/2)th first viewpoint to the (N−1)th first viewpoint, setting the N/2 second cameras respectively at the [(N/2)+1]th second viewpoint to the Nth second viewpoint, obtaining the left eye view by using the N/2 first cameras, and obtaining the right eye view by using the N/2 second cameras;
• or
• wherein the eye tracking system comprises (N+1)/2 first cameras and (N+1)/2 second cameras, wherein N=K×n, and K×n is an odd number;
• the determining coordinates of the user's eyes through the eye tracking system, and determining the left eye view and the right eye view according to the coordinates of the user's eyes comprises:
• determining central coordinates of the user's eyes and a central viewpoint corresponding to the central coordinates;
• setting N first viewpoints in a region corresponding to the user's left eye according to a preset viewpoint interval from the central viewpoint, and setting N second viewpoints in a region corresponding to the user's right eye according to the preset viewpoint interval from the central viewpoint;
• setting the (N+1)/2 first cameras respectively at the [(N+1)/2]th first viewpoint to the Nth first viewpoint, setting the (N+1)/2 second cameras respectively at the [(N+1)/2]th second viewpoint to the Nth second viewpoint, and obtaining the left eye view by using the (N+1)/2 first cameras and the right eye view by using the (N+1)/2 second cameras.