Display drive method and apparatus, and method and apparatus for generating sampling region

1. A display drive method for driving a 3D display device, the 3D display device comprising: a pixel array and a grating array, the pixel array comprising: a plurality of first view pixel groups; and a plurality of second view pixel groups; wherein the plurality of first view pixel groups and second view pixel groups are arranged alternately in both a row direction and a column direction, wherein each view pixel group includes M*N subpixels arranged in one column, wherein N represents a number of types of subpixel colors and M is an integer greater than or equal to 3 wherein the grating array shields a first side of the first view pixel group and a second side of the second view pixel group in the column direction, and wherein the first side and the second side are two opposite sides, the method comprising:

dividing a first view and a second view to be displayed into a plurality of theoretical pixel units, respectively;

determining a respective gray value corresponding to a color of each type of subpixels in original display information corresponding to each theoretical pixel unit; and

for each subpixel of each view, determining brightness of the subpixel based on respective gray values corresponding to the color of the subpixel in the original display information corresponding to respective theoretical pixel units which are covered by a rectangular sampling region of the subpixel and belong to the view,

wherein a midpoint of a connection line between a center of each subpixel and a center of each of respective neighboring subpixels of the same type is located on a boundary of the rectangular sampling region of the subpixel, subpixels being of the same type as one subpixel referring to the subpixels which belong to the same view and are in the same color as the subpixel.

2. The method according to claim 1 , wherein N has a value of 3, and the pixel array is a delta pixel array.

3. The method according to claim 2 , wherein a length of each subpixel in the row direction is twice that in the column direction, and each theoretical pixel unit corresponds to two neighboring subpixels in the column direction.

4. The method according to claim 1 , wherein the determining the brightness of the subpixel comprises:

for each subpixel, determining a respective area of overlap between its rectangular sampling region and each of a plurality of theoretical pixel units covered by the sampling region;

determining a respective product of the respective area of overlap corresponding to each theoretical pixel unit and the gray value corresponding to the color of the subpixel in the original display information corresponding to the theoretical pixel unit; and

determining the brightness of the subpixel based on an area of the rectangular sampling region and a sum of respective products.

5. A display drive apparatus for driving a 3D display device, the 3D display device comprising a pixel array and a grating array, the pixel array comprising a plurality of first view pixel groups and a plurality of second view pixel groups, the plurality of first view pixel groups and second view pixel groups being arranged alternately in both a row direction and a column direction, each view pixel group including M*N subpixels arranged in one column, where N represents a number of types of subpixel colors and M is an integer greater than or equal to 3, the grating array shielding a first side of the first view pixel group and a second side of the second view pixel group in the column direction, and the first side and the second side being two opposite sides, the display drive apparatus comprising:

a pixel dividing unit implemented by a processor and configured to divide a first view and a second view to be displayed into a plurality of theoretical pixel units, respectively, and determine a respective gray value corresponding to a color of each type of subpixels in original display information corresponding to each theoretical pixel unit; and

a brightness determining unit implemented by the processor and configured to, for each subpixel of each view, determine brightness of the subpixel based on respective gray values corresponding to the color of the subpixel in the original display information corresponding to respective theoretical pixel units which are covered by a rectangular sampling region of the subpixel and belong to the view,

wherein a midpoint of a connection line between a center of each subpixel and a center of each of respective neighboring subpixels of the same type is located on a boundary of the rectangular sampling region of the subpixel, subpixels being of the same type as one subpixel referring to the subpixels which belong to the same view and are in the same color as the subpixel.

6. The display drive apparatus according to claim 5 , wherein N has a value of 3, and the pixel array is a delta pixel array.

7. The display drive apparatus according to claim 6 , wherein a length of each subpixel in the row direction is twice that in the column direction, and each theoretical pixel unit corresponds to two neighboring subpixels in the column direction.

8. The display drive apparatus according to claim 6 , wherein the brightness determining unit is configured to:

for each subpixel, determine a respective area of overlap between its rectangular sampling region and each of a plurality of theoretical pixel units covered by the sampling region;

determine a respective product of the respective area of overlap corresponding to each theoretical pixel unit and the gray value corresponding to the color of the subpixel in the original display information corresponding to the theoretical pixel unit; and

determine the brightness of the subpixel based on an area of the rectangular sampling region and a sum of respective products.