Pixel array, display device and display method

Patent metadata

Field	Value
Publication number	US-10230942-B2
Application number	US-201514915008-A
Country	US
Kind code	B2
Filing date	Sep 30, 2015
Priority date	Feb 6, 2015
Publication date	Mar 12, 2019
Grant date	Mar 12, 2019

Abstract

A pixel array, a display device and a display method are provided. The pixel array comprises: a plurality of sub-pixels arranged along a row direction and a column direction, the plurality of sub-pixels being defined by a plurality of data lines and a plurality of gate lines intersecting with each other, the data lines extending along the row direction, and the gate lines extending along the column direction, wherein, each row of sub-pixels include a plurality of repeating units arranged sequentially, the repeating unit including sub-pixels of three different colors; for each column of the sub-pixels, any two adjacent sub-pixels are of different colors; and each of the sub-pixels has a length L along the row direction and a height H along the column direction, the length being less than or equal to the height, and in any two adjacent sub-pixels in each column of the sub-pixels, a lower row sub-pixel shifts by a distance D with respect to a previous row sub-pixel along the row direction, where −L<D<0 or 0<D<L.

First claim

The invention claimed is:

1. A pixel array, comprising a plurality of sub-pixels arranged along a row direction and a column direction, the plurality of sub-pixels being defined by a plurality of data lines and a plurality of gate lines intersecting with each other, the data lines extending along the row direction, and the gate lines extending along the column direction, wherein,
each row of sub-pixels includes a plurality of repeating units arranged sequentially, each repeating unit including sub-pixels of three different colors;
for each column of the sub-pixels, any two adjacent sub-pixels are of different colors;
an extending direction of the data lines is consistent with the row direction and an extending direction of the gate lines is consistent with the column direction;
each of the sub-pixels has a length L along the extending direction of the data lines and a height H along the extending direction of the gate lines, the length L being less than the height H; and
in any two adjacent sub-pixels in each column of the sub-pixels, a lower sub-pixel shifts by a distance D with respect to an upper sub-pixel along the extending direction of the data lines, where −L<D<0 or 0<D<L,
wherein, in a 3D display mode, for each row of the sub-pixels, N sub-pixels are defined as buffer pixels every M sub-pixels of the three different colors, the buffer pixels display a black color, where M and N are natural numbers greater than or equal to 1, and a set of the M sub-pixels and the N buffer pixels is alternately used as a visible region of a left eye and a visible region of a right eye along the row direction,
wherein any adjacent buffer pixels in a same column for different rows of the sub-pixels are shifted by the distance D with respect to each other, the buffer pixels in a same column are not located in a same straight line along the column direction.

2. The pixel array according to claim 1 , wherein, in any two adjacent sub-pixels in each column of the sub-pixels, the lower sub-pixel shifts by the distance D rightwards with respect to the upper sub-pixel along the row direction, and 0<D<L.

3. The pixel array according to claim 1 , wherein, in each column of the sub-pixels, there is no relative shifting between sub-pixels in an odd-numbered row, there is no relative shifting between sub-pixels in an even-numbered row, and in any two adjacent sub-pixels, the sub-pixel in an even-numbered row shifts by the distance D rightwards along the row direction with respect to a previous row sub-pixel adjacent thereto, and 0<D<L.

4. The pixel array according to claim 3 , wherein, in any two adjacent sub-pixels, the sub-pixel in an odd-numbered row shifts by the distance D leftwards along the row direction with respect to a previous row sub-pixel adjacent thereto, and −L<D<0.

5. The pixel array according to claim 1 , wherein the length L and the height H meet relationships of:

L
=
H

;

L
=

2
⁢
H

3

;

or
⁢

⁢
L

=

H
2

.

6. The pixel array according to claim 4 , wherein, for each column of the sub-pixels, sub-pixels in an odd-numbered row are of a same color, and sub-pixels in an even-numbered row are of a same color.

7. A display device, comprising:
a display panel, including the pixel array according to claim 1 , and including an array substrate and an opposed substrate opposite to each other, the plurality of gate lines and the plurality of data lines being formed on the array substrate,
wherein the display device further comprises:
an eye tracking device, configured to detect positions of eyes of a viewer and determine a position of a sub-pixel column at a far end in sub-pixel columns of the display panel seen by a left eye or a right eye of the viewer in the 3D display mode, and according to the position of the sub-pixel column at the far end, determine the sub-pixel column at the far end and P columns of the sub-pixels adjacent to the sub-pixel column at the far end as the buffer pixels displaying the black color and determine the M columns of sub-pixels on a left side and a right side of the P+1 columns of sub-pixels to display a left-eye image and a right-eye image, respectively, where P+1=N, P is a natural number, and M and N are nonzero natural numbers.

8. The display device according to claim 7 , further comprising:
a light-splitting device, configured to project light for displaying a left-eye image and light for displaying a right-eye image to a left eye and a right eye of the viewer in the 3D display mode, respectively.

9. The display device according to claim 8 , wherein the light-splitting device is a liquid crystal lens, a liquid crystal grating or an electrochromic grating.

10. The display device according to claim 9 , wherein, a lens pitch of the liquid crystal lens or a grating pitch of the liquid crystal grating is Ws, Ws=KQB (M+N)/(Q+(M+N)B), where K is a number of viewpoints of the display device in the 3D display mode, Q is a distance between a left eye and a right eye of the viewer, and B is a length of each of the sub-pixels along the row direction.

11. A display method for a display device, the display device comprising:
a display panel, including the pixel array according to claim 1 , and including an array substrate and an opposed substrate opposite to each other, the plurality of gate lines and the plurality of data lines being formed on the array substrate;
a light-splitting device, configured to project light for displaying a left-eye image and light for displaying a right-eye image to a left eye and a right eye of a viewer, respectively; and
an eye tracking device, configured to detect positions of eyes of the viewer and determine a position of a sub-pixel column at a far end in sub-pixel columns of the display panel seen by the left eye or the right eye of the viewer,
the display method comprising:
step 1: setting the display device to be in the 3D display mode, and receiving and displaying data of the left-eye image and data of the right-eye image in a frame of image;
step 2: for each row of the sub-pixels, defining N sub-pixels as buffer pixels displaying the black color every M sub-pixels of the three different colors, where M and N are nonzero natural numbers; and
step 3: alternately inputting the data of the left-eye image and the data of the right-eye image into a set of the M sub-pixels and the N buffer pixels to be alternately used as a visible region of the left eye and a visible region of the right eye,

wherein the step 2 includes:
detecting the positions of eyes of the viewer by using the eye tracking device,
determining a position of a sub-pixel column at a far end in sub-pixel columns of the display panel seen by a left eye or a right eye of the viewer, and
according to the position of the sub-pixel column at the far end, setting the sub-pixel column at the far end and P columns of sub-pixels adjacent to the sub-pixel column at the far end as the buffer pixels displaying t

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Optoelectronics Tech Co Ltd

Inventors

• Yang Ming
• Dong Xue
• Zhao Wenqing
• Chen Xiaochuan
• Lu Pengcheng
• Guo Renwei

Classifications

• H04N13/371

  for tracking viewers with different interocular distances; for tracking rotational head movements around the vertical axis · CPC title

• H04N13/398

  Synchronisation thereof; Control thereof · CPC title

• H04N13/376

  for tracking left-right translational head movements, i.e. lateral movements · CPC title

• H04N13/305

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

• H04N13/31 Primary

  using parallax barriers · CPC title