Three-dimensional (3D) display device and electronic apparatus

1. A three-dimensional (3D) display, comprising:

a display panel including a plurality of sub-pixels arranged in a plurality of sub-pixel repeating groups, wherein the sub-pixels have M number of different colors, the M number of different colors are capable of being mixed to generate a white color, M is a positive integer and greater than 2, M number of successive sub-pixels along a first direction have different colors, two adjacent sub-pixels form a main pixel, any two adjacent main pixels are different, and each sub-pixel repeating group includes one or more main pixels; and

a cylindrical lens grating including a plurality of cylindrical lenses arranged in parallel disposed on top of the display panel and covering all the sub-pixels in the display panel, wherein, when the display panel displays a 3D image, the cylindrical lens grating divides all the sub-pixels into a plurality of 3D viewpoints of the 3D image, the 3D viewpoint has same sub-pixel arrangement sequences as the sub-pixel repeating groups,

wherein the cylindrical lens has a length L=a*b+c along an orientation of the cylindrical lenses, where a is a number of the sub-pixel repeating groups covered by the cylindrical lens along the orientation of the cylindrical lenses, b is a length of one sub-pixel repeating group along the orientation of the cylindrical lenses, and c is a length of one sub-pixel covered by the cylindrical lens along the orientation of the cylindrical lenses.

2. The 3D display according to claim 1 , wherein:

each sub-pixel has a rectangular shape;

the plurality of sub-pixels disposed in the display panel are arranged in an array;

a horizontal direction of the array is parallel to the first direction;

a vertical direction of the array is parallel to a second direction perpendicular to the first direction; and

two sub-pixels adjacent in either the horizontal direction or the vertical direction of the array form one main pixel.

3. The 3D display according to claim 2 , wherein:

each sub-pixel repeating group includes a group of sub-pixels having three different colors.

4. The 3D display according to claim 3 , wherein:

the group of sub-pixels in each sub-pixel repeating group are arranged in an n×m matrix;

three successive sub-pixels in a same row of the matrix have different colors; and

two successive sub-pixels in a same column of the matrix have different colors.

5. The 3D display according to claim 4 , wherein:

the group of sub-pixels in each sub-pixel repeating group are arranged the n×m matrix, n=2 and m=3.

6. The 3D display according to claim 4 , wherein:

the group of sub-pixels in each sub-pixel repeating group are arranged the n×m matrix, n=4 and m=3.

7. The 3D display according to claim 4 , wherein:

each sub-pixel repeating group includes a plurality of red sub-pixels, a plurality of green sub-pixels, and a plurality of blue sub-pixels.

8. The 3D display according to claim 2 , wherein:

each sub-pixel repeating group includes a group of sub-pixels having four different colors arranged in the n×m matrix;

four successive sub-pixels in a same row of the matrix have different colors; and

two successive sub-pixels in a same column of the matrix have different colors.

9. The 3D display according to claim 8 , wherein:

the group of sub-pixels in each sub-pixel repeating group are arranged the n×m matrix, n=2 and m=4.

10. The 3D display according to claim 9 , wherein:

each sub-pixel repeating group includes a plurality of red sub-pixels, a plurality of green sub-pixels, a plurality of blue sub-pixels, and a plurality of white sub-pixels.

11. The 3D display according to claim 1 , wherein:

each sub-pixel has a hexagonal shape; and

any one sub-pixel is adjacent to other six sub-pixels.

12. The 3D display according to claim 11 , wherein:

each sub-pixel repeating group includes a plurality of first color sub-pixels, a plurality of second color sub-pixels, a plurality of third color sub-pixels, and a plurality of fourth color sub-pixels.

13. The 3D display according to claim 12 , wherein:

along the second direction, all the (2i−1)-th sub-pixels have a same color, all the 2ith sub-pixels have a same color different from the (2i−1)-th sub-pixels, wherein i is a positive integer, and the second direction is perpendicular to the first direction.

14. The 3D display according to claim 13 , wherein:

the first color sub-pixels are red sub-pixels;

the second color sub-pixels are green sub-pixels;

the third color sub-pixels are blue sub-pixels; and

the fourth color sub-pixels are white sub-pixels.

15. The 3D display according to claim 2 , wherein:

the number of the sub-pixel repeating groups covered by the cylindrical lens along the orientation of the cylindrical lenses is a=1.

16. The 3D display according to claim 15 , wherein:

the cylindrical lenses are arranged parallel to the second direction.

17. The 3D display according to claim 15 , wherein:

the cylindrical lenses are arranged parallel to the first direction.

18. The 3D display according to claim 15 , wherein:

the cylindrical lenses are arranged parallel to a third direction having an angle with respect to the first direction, wherein the angle is larger than 0° but smaller than 90°.

19. An electronic device, comprising:

a three-dimensional (3D) display comprising a plurality of sub-pixels arranged in a plurality of sub-pixel repeating, wherein the sub-pixels have M number of different colors, the M number of different colors are capable of being mixed to generate a white color, M is a positive integer and greater than 2, M number of successive sub-pixels along a first direction have different colors, two adjacent sub-pixels form a main pixel, any two adjacent main pixels are different, and each sub-pixel repeating group includes one or more main pixels; and

a cylindrical lens grating including a plurality of cylindrical lenses arranged in parallel disposed on top of the display panel and covering all the sub-pixels in the display panel, wherein, when the display panel displays a 3D image, the cylindrical lens grating divides all the sub-pixels into a plurality of 3D viewpoints of the 3D image, the 3D viewpoint has same sub-pixel arrangement sequences as the sub-pixel repeating groups,

wherein the cylindrical lens has a length L=a*b+c along an orientation of the cylindrical lenses, where a is a number of the sub-pixel repeating groups covered by the cylindrical lens along the orientation of the cylindrical lenses, b is a length of one sub-pixel repeating group along the orientation of the cylindrical lenses, and c is a length of one sub-pixel covered by the cylindrical lens along the orientation of the cylindrical lenses.