3D DISPLAY DEVICE AND DRIVING METHOD THEREOF

• US 20170026637A1
• Filed: 05/19/2016
• Published: 01/26/2017
• Est. Priority Date: 07/21/2015
• Status: Active Grant

• Current Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Original Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Inventors: LU, Pengcheng, CHEN, Xiaochuan, GUO, Renwei, YANG, Ming, ZHAO, Wenqing, LI, Changfeng, WANG, Qian, WANG, Lei, XU, Rui, LIU, Peng, DONG, Xue
• Granted Patent: US 10,187,632 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G02B 30/31 involving active parallax barriers involving directional light or back-light sources G02B30/33
• CPC Class Codes: G09G 2300/0443 with several sub-pixels for the same colour in a pixel, not specifically used to display gradations G09G3/364 takes precedence
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 3/003 to produce spatial visual effects
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: H04N 13/31 using parallax barriers
• CPC Class Codes: H04N 13/324 Colour aspects

Abstract

Embodiments of the invention disclose a 3D display device and a driving method thereof. The 3D display device includes a display panel and a grating structure, when both eyes are parallel to a first direction, a pixel array of the display panel forms a plurality of first left-eye pixel regions corresponding to the left eye and a plurality of first right-eye pixel regions corresponding to the right eye by the grating structure; when both eyes are parallel to a second direction, the pixel array of the display panel forms a plurality of second left-eye pixel regions corresponding to the left eye and a plurality of second right-eye pixel regions corresponding to the right eye by the grating structure, the first left-eye pixel regions are the same as the second left-eye pixel regions, and the first right-eye pixel regions are the same as the second right-eye pixel regions.

Claims

1. A 3D display device, including a display panel and a grating structure, wherein the grating structure is disposed at a light outgoing surface of the display panel, the grating structure is configured for forming light-transmission regions and light-blocking regions, the display panel includes a pixel array, the pixel array includes a plurality of pixel units, each of which includes a plurality of sub-pixels which are regularly arranged in a first direction and a second direction, and the first direction is perpendicular to the second direction,

the pixel array is configured for forming a plurality of first left-eye pixel regions corresponding to the left eye and a plurality of first right-eye pixel regions corresponding to the right eye by the grating structure when both eyes are parallel to the first direction;

the pixel array is further configured for forming a plurality of second left-eye pixel regions corresponding to the left eye and a plurality of second right-eye pixel regions corresponding to the right eye by the grating structure when both eyes are parallel to the second direction;

the first left-eye pixel regions are the same as the second left-eye pixel regions, and the first right-eye pixel regions are the same as the second right-eye pixel regions; and

each pixel unit is configured for forming the first left-eye pixel region and the first right-eye pixel region.

2. The 3D display device of claim 1, wherein the pixel unit includes nine sub-pixels, and the nine sub-pixels are arranged in a 3×

3 rectangular array.

3. The 3D display device of claim 2, wherein the sub-pixels in the pixel unit include a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, and the rectangular array includes any one of the following arrangements:

4. The 3D display device of claim 3, wherein a width-to-height ratio of each sub-pixel is 1:

1.

5. The 3D display device of claim 2, wherein the first left-eye pixel region includes three sub-pixels, which are located at a diagonal line of the pixel unit, and the first right-eye pixel region includes the other six sub-pixels;

or

the first right-eye pixel region includes three sub-pixels, which are located at a diagonal line of the pixel unit, and the first left-eye pixel region includes the other six sub-pixels.

6. The 3D display device of claim 3, wherein the first left-eye pixel region includes three sub-pixels, which are located at a diagonal line of the pixel unit, and the first right-eye pixel region includes the other six sub-pixels;

or

the first right-eye pixel region includes three sub-pixels, which are located at a diagonal line of the pixel unit, and the first left-eye pixel region includes the other six sub-pixels.

7. The 3D display device of claim 4, wherein the first left-eye pixel region includes three sub-pixels, which are located at a diagonal line of the pixel unit, and the first right-eye pixel region includes the other six sub-pixels;

or

the first right-eye pixel region includes three sub-pixels, which are located at a diagonal line of the pixel unit, and the first left-eye pixel region includes the other six sub-pixels.

8. The 3D display device of claim 2, wherein two adjacent pixel units include a first adjacent pixel unit and a second adjacent pixel unit, the first left-eye pixel region of the first adjacent pixel unit includes five sub-pixels, which are located at a first and a second diagonal lines of the first adjacent pixel unit, and the first right-eye pixel region of the first adjacent pixel unit includes the other four sub-pixels;

the first right-eye pixel region of the second adjacent pixel unit includes five sub-pixels, which are located at a first and a second diagonal lines of the second adjacent pixel unit, and the first left-eye pixel region of the second adjacent pixel unit includes the other four sub-pixels; and

the first diagonal line is perpendicular to the second diagonal line;

or

the first right-eye pixel region of the first adjacent pixel unit includes five sub-pixels, which are located at a first and a second diagonal lines of the first adjacent pixel unit, and the first left-eye pixel region of the first adjacent pixel unit includes the other four sub-pixels;

the first left-eye pixel region of the second adjacent pixel unit includes five sub-pixels, which are located at a first and a second diagonal lines of the second adjacent pixel unit, and the first right-eye pixel region of the second adjacent pixel unit includes the other four sub-pixels; and

the first diagonal line is perpendicular to the second diagonal line.

9. The 3D display device of claim 3, wherein two adjacent pixel units include a first adjacent pixel unit and a second adjacent pixel unit, the first left-eye pixel region of the first adjacent pixel unit includes five sub-pixels, which are located at a first and a second diagonal lines of the first adjacent pixel unit, and the first right-eye pixel region of the first adjacent pixel unit includes the other four sub-pixels;

the first right-eye pixel region of the second adjacent pixel unit includes five sub-pixels, which are located at a first and a second diagonal lines of the second adjacent pixel unit, and the first left-eye pixel region of the second adjacent pixel unit includes the other four sub-pixels; and

the first diagonal line is perpendicular to the second diagonal line;

or

the first right-eye pixel region of the first adjacent pixel unit includes five sub-pixels, which are located at a first and a second diagonal lines of the first adjacent pixel unit, and the first left-eye pixel region of the first adjacent pixel unit includes the other four sub-pixels;

the first left-eye pixel region of the second adjacent pixel unit includes five sub-pixels, which are located at a first and a second diagonal lines of the second adjacent pixel unit, and the first right-eye pixel region of the second adjacent pixel unit includes the other four sub-pixels; and

the first diagonal line is perpendicular to the second diagonal line.

10. The 3D display device of claim 4, wherein two adjacent pixel units include a first adjacent pixel unit and a second adjacent pixel unit, the first left-eye pixel region of the first adjacent pixel unit includes five sub-pixels, which are located at a first and a second diagonal lines of the first adjacent pixel unit, and the first right-eye pixel region of the first adjacent pixel unit includes the other four sub-pixels;

the first right-eye pixel region of the second adjacent pixel unit includes five sub-pixels, which are located at a first and a second diagonal lines of the second adjacent pixel unit, and the first left-eye pixel region of the second adjacent pixel unit includes the other four sub-pixels; and

the first diagonal line is perpendicular to the second diagonal line;

or

the first right-eye pixel region of the first adjacent pixel unit includes five sub-pixels, which are located at a first and a second diagonal lines of the first adjacent pixel unit, and the first left-eye pixel region of the first adjacent pixel unit includes the other four sub-pixels;

the first left-eye pixel region of the second adjacent pixel unit includes five sub-pixels, which are located at a first and a second diagonal lines of the second adjacent pixel unit, and the first right-eye pixel region of the second adjacent pixel unit includes the other four sub-pixels; and

the first diagonal line is perpendicular to the second diagonal line.

11. The 3D display device of claim 2, wherein the pixel unit is provided with a buffering region, which includes three sub-pixels located at a diagonal line of the pixel unit and having a gray value of 0, the first left-eye pixel region includes three sub-pixels, which are located at a side of the diagonal line, and the first right-eye pixel region includes the other three sub-pixels.

12. The 3D display device of claim 3, wherein the pixel unit is provided with a buffering region, which includes three sub-pixels located at a diagonal line of the pixel unit and having a gray value of 0, the first left-eye pixel region includes three sub-pixels, which are located at a side of the diagonal line, and the first right-eye pixel region includes the other three sub-pixels.

13. The 3D display device of claim 4, wherein the pixel unit is provided with a buffering region, which includes three sub-pixels located at a diagonal line of the pixel unit and having a gray value of 0, the first left-eye pixel region includes three sub-pixels, which are located at a side of the diagonal line, and the first right-eye pixel region includes the other three sub-pixels.

14. The 3D display device of claim 2, wherein the plurality of sub-pixels of each pixel unit include a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, two adjacent pixel units include a first adjacent pixel unit and a second adjacent pixel unit, the first color sub-pixel, the second color sub-pixel and the third color sub-pixel located at a side of a diagonal line within the first adjacent pixel unit form a triangular virtual pixel, and the first color sub-pixel and the second color sub-pixel at a side of a diagonal line within the second adjacent pixel unit and the third color sub-pixel of the first adjacent pixel unit form another triangular virtual pixel.

15. The 3D display device of claim 3, wherein two adjacent pixel units include a first adjacent pixel unit and a second adjacent pixel unit, the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B located at a side of a diagonal line within the first adjacent pixel unit form a triangular virtual pixel, and two colors of sub-pixels of the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B at a side of a diagonal line within the second adjacent pixel unit and the third color of sub-pixel of the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B of the first adjacent pixel unit form another triangular virtual pixel.

16. The 3D display device of claim 4, wherein two adjacent pixel units include a first adjacent pixel unit and a second adjacent pixel unit, the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B located at a side of a diagonal line within the first adjacent pixel unit form a triangular virtual pixel, and two colors of sub-pixels of the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B at a side of a diagonal line within the second adjacent pixel unit and the third color of sub-pixel of the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B of the first adjacent pixel unit form another triangular virtual pixel.

17. The 3D display device of claim 1, wherein the grating structure includes a first substrate, a second substrate and a liquid crystal layer interposed between the first substrate and the second substrate, and the liquid crystal layer is made of a liquid crystal material.

18. The 3D display device of claim 1, wherein the grating structure includes a first substrate, a second substrate and an electrochromic layer interposed between the first substrate and the second substrate, and the electrochromic layer is made of an electrochromic material.

19. A driving method of the 3D display device of claim 1, including steps of:

forming the light-transmission regions and the light-blocking regions by the grating structure; and

causing the pixel array to form the plurality of first left-eye pixel regions corresponding to the left eye and the plurality of first right-eye pixel regions corresponding to the right eye by the grating structure when both eyes are parallel to the first direction;

causing the pixel array to form the plurality of second left-eye pixel regions corresponding to the left eye and the plurality of second right-eye pixel regions corresponding to the right eye by the grating structure when both eyes are parallel to the second direction, wherein the first left-eye pixel regions are the same as the second left-eye pixel regions, and the first right-eye pixel regions are the same as the second right-eye pixel regions; and

each pixel unit is configured for forming the first left-eye pixel region and the first right-eye pixel region.

20. The driving method of claim 19, wherein the pixel unit includes nine sub-pixels, and the nine sub-pixels are arranged in a 3×

3 rectangular array.