Display apparatus with light-splitting component and driving method thereof

Patent metadata

Field	Value
Publication number	US-12250360-B2
Application number	US-202117757975-A
Country	US
Kind code	B2
Filing date	Jan 25, 2021
Priority date	Jan 25, 2021
Publication date	Mar 11, 2025
Grant date	Mar 11, 2025

Abstract

The present disclosure provides a display apparatus and a driving method thereof. The display apparatus includes a display panel including a plurality of pixel islands arranged at intervals in a row direction and a column direction, each pixel island being provided with a plurality of sub-pixels arranged at intervals in the row direction; and a light splitting component, disposed on a display side of the display panel and including a plurality of light splitting structures extending in the column direction and continuously arranged in the row direction. In the row direction, every at least two adjacent light splitting structures are one light splitting repeating unit. Each light splitting repeating unit covers one column of the pixel islands correspondingly. In one of the pixel islands, relative positions of all sub-pixels to the corresponding light splitting structures are complementary.

First claim

What is claimed is:

1. A display apparatus, comprising:
a display panel, comprising: a plurality of pixel islands arranged at intervals in a row direction and a column direction, wherein each pixel island is provided with a plurality of sub-pixels arranged at intervals in the row direction, and the row direction is perpendicular to the column direction; and
a light splitting component, disposed on a display side of the display panel and comprising a plurality of light splitting structures extending in the column direction and continuously arranged in the row direction, wherein in the row direction, every at least two adjacent light splitting structures are one light splitting repeating unit, each light splitting repeating unit covers one column of the pixel islands correspondingly, and relative positions of sub-pixels, in one pixel island covered by a first light splitting structure in one light splitting repeating unit, to the first light splitting structure are located in gaps among relative positions of sub-pixels, in the one pixel island covered by a second light splitting structure in the one light splitting repeating unit, to the second light splitting structure;
wherein in the row direction, a width of a light splitting structure is equal to 1/m of a width of a corresponding pixel island, wherein m is a total quantity of the light splitting structures in one of the light splitting repeating units;
the pixel island comprises m*N+k sub-pixels, wherein N is an integer larger than or equal to 2, k is an integer larger than or equal to 1, and no common divisor of k and m exists other than 1; and
in the row direction, a ratio of a width of one sub-pixel to a width of a gap between two adjacent sub-pixels is larger than or equal to 0.95/(m−1) and smaller than or equal to 1.05/(m−1).

2. The display apparatus according to claim 1 , wherein relative positions of all sub-pixels, in the one pixel island covered by the one light splitting repeating unit, to the corresponding light splitting structures in the one light splitting repeating unit are continuously arranged in the row direction.

3. The display apparatus according to claim 1 , wherein in a direction perpendicular to the display panel, a perpendicular distance T between the pixel island and the light splitting structure satisfies the following formula:

0.95
*

W
2

*
Cot
⁢

(

m
*
N

+
k

)

*
Δ
⁢
θ

2

≤
T
≤

1.05
*

W
2

*
Cot
⁢

(

m
*
N

+
k

)

*
Δ
⁢
θ

2

,

wherein w is a width of one of the light splitting structures in the row direction, Δθ is an angle of a viewpoint formed by light emitted by one of the sub-pixels passing the corresponding light splitting structure.

4. The display apparatus according to claim 3 , wherein an angle of a gap between two adjacent viewpoints is Δθ.

5. The display apparatus according to claim 3 , wherein the light splitting structure is a cylindrical lens, and a focal length of the cylindrical lens is equal to T.

6. The display apparatus according to claim 5 , further comprising: a spacer dielectric layer between the display panel and the light splitting structure.

7. The display apparatus according to claim 1 , wherein:
m is 2, N is 4, and k is 1; or,
m is 3, N is 2, and k is 2; or,
m is 3, N is 3, and k is 1; or,
m is 3, N is 3, and k is 2; or,
m is 4, N is 2, and k is 1; or,
m is 4, N is 2, and k is 3; or,
m is 5, N is 2, and k is 1; or,
m is 5, N is 2, and k is 2; or,
m is 5, N is 2, and k is 3; or,
m is 5, N is 2, and k is 4; or,
m is 6, N is 2, and k is 1; or,
m is 6, N is 2, and k is 5.

8. The display apparatus according to claim 1 , wherein the light splitting structure is configured to enable light emitted by all sub-pixels covered by the light splitting structure to form a main lobe viewing angle, and enable light emitted by all sub-pixels covered by an adjacent light splitting structure to form a side lobe viewing angle; wherein
a shortest distance between a boundary of the main lobe viewing angle and a boundary of the side lobe viewing angle is equal to a width of the light splitting structure in the row direction, and a shortest distance between boundaries of any two adjacent side lobe viewing angles is equal to the width of the light splitting structure in the row direction.

9. The display apparatus according to claim 1 , wherein every three of the pixel islands continuously arranged in the column direction are one pixel repeating unit; and
in one of pixel repeating units, sub-pixels of a same pixel island are same in display color, and sub-pixels of different pixel islands are different in the display color.

10. A method for driving the display apparatus according to claim 1 , comprising:
determining a first image driving signal corresponding to each pixel island under a two-dimensional display mode according to image information to be displayed, and loading the first image driving signal to all sub-pixels in the pixel island to form a two-dimensional image; and
determining a second image driving signal corresponding to each viewpoint under a three-dimensional display mode according to the image information to be displayed, and applying the second image driving signal corresponding to a same viewpoint to sub-pixels located at a same position in different pixel islands to form a three-dimensional image with a plurality of viewpoints.

11. The display apparatus according to claim 1 , wherein a pattern on an imaging surface formed by light emitted from the sub-pixels, in the one pixel island covered by the first light splitting structure, and passing through the first light splitting structure is complementary to a pattern on the imaging surface formed by light emitted from the sub-pixels, in the one pixel island covered by the second light splitting structure, and passing through the second light splitting structure.

12. A display apparatus, comprising:
a display panel, comprising: a plurality of pixel islands arranged at intervals in a row direction and a colum

Assignees

• Boe Technology Group Co Ltd

Inventors

• Ma Sen
• Dong Xue
• Gao Jian

Classifications

• G09G2300/0452

  Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components · CPC title

• G09G3/342

  using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines · CPC title

• G02F1/133526

  Lenses, e.g. microlenses or Fresnel lenses · CPC title

• G02B30/30

  involving parallax barriers · CPC title

• H04N13/305 Primary

  using lenticular lenses, e.g. arrangements of cylindrical lenses · CPC title