Pixel structure, display panel and pixel compensation method therefor

• US 10,325,540 B2
• Filed: 05/26/2015
• Issued: 06/18/2019
• Est. Priority Date: 10/27/2014
• Status: Active Grant

• Current Assignee: Shanghai AVIC Optoelectronics Company Limited (Tianma Microelectronics Company Limited), Tianma Microelectronics Company Limited
• Original Assignee: Shanghai AVIC Optoelectronics Company Limited (Tianma Microelectronics Company Limited), Tianma Microelectronics Company Limited
• Inventors: Qin, Feng, Jian, Shoufu, Xia, Zhiqiang
• Primary Examiner(s): Nguyen, Chanh D
• Assistant Examiner(s): Kiyabu, Karin
• Application Number:
  US14/722,095
• Publication Number:
  US 20160117969A1
• Time in Patent Office: 1,484 Days
• Field of Search: None
• 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 2300/0465 Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607

Abstract

A pixel structure including a pixel array is disclosed. The pixel array includes a plurality of pixels, each including a first sub-pixel, a second sub-pixel, and a third sub-pixel. The pixel array also includes a plurality of pixel dots, each including a plurality of sub-pixels from two adjacent rows of sub-pixels in the pixel array, wherein any two of the adjacent rows of sub-pixels in the pixel array are shared by each other. A first pixel dot includes a first sub-pixel and a plurality of surrounding sub-pixels adjacent to the first sub-pixel, wherein at least one or more of the surrounding sub-pixels and the first sub-pixel are shared by each other. In addition, the first pixel dot includes at least four sub-pixels including at least one first sub-pixel, one second sub-pixel, and one third sub-pixel.

Claims

1. A pixel structure comprising:

a pixel array, wherein the pixel array comprises a plurality of pixels, each comprising a first sub-pixel, a second sub-pixel, and a third sub-pixel; and

a plurality of pixel dots, each comprising a plurality of sub-pixels from two adjacent rows of sub-pixels in the pixel array,

wherein the sub-pixels in any two of the adjacent rows of sub-pixels in the pixel array are shared by the any two of the adjacent rows of sub-pixels in the pixel array,

wherein the plurality of pixel dots includes a first pixel dot and a plurality of second pixel dots adjacent to the first pixel dot, the first pixel dot includes a 2×

3 matrix of sub-pixels and each of the plurality of second pixel dots includes a 2×

3 matrix of sub-pixels,

wherein the 2×

3 matrix of sub-pixels of the first pixel dot includes two sub-pixels and four sub-pixels, each of the two sub-pixels is shared by a single second pixel dot of the plurality of second pixel dots, and each of the four sub-pixels is shared by three second pixel dots of the plurality of second pixel dots,

wherein the pixel array includes a plurality of first pixel rows, a plurality of second pixel rows and a plurality of third pixel rows, wherein a first pixel row comprises a row of the first sub-pixel, the second sub-pixel, and a third sub-pixel, arranged in that repeated order, the second pixel row comprises a row of the third sub-pixel, the first sub-pixel, and the second sub-pixel arranged in that repeated order, and a third pixel row comprises a row of the second sub-pixel, the third sub-pixel, and the first sub-pixel arranged in that repeated order,

wherein in the pixel array, the first sub-pixel, the second sub-pixel and the third sub-pixel that are consecutively arranged in one of the first, the second and the third pixel rows include X number of virtual pixel dots and have a width of W, each sub-pixel has a length of one unit length, each of the X number of the virtual pixel dots has a length of one unit length and a width of Y, and W=X*Y, where Y=C/A, C denotes a constant which is 1 inch, A denotes pixel per inch, and 1<

X≤

3,

wherein each sub-pixel in the first pixel dot is shared by at least two virtual pixel dots, and each virtual pixel dot, containing a plurality of virtual sub-pixels, includes a partial portion of the first sub-pixel, the second sub-pixel and the third sub-pixel that are consecutively arranged, and

wherein each sub-pixel in the first pixel dot includes a plurality of portions, each of the plurality of portions including a virtual sub-pixel corresponding to one of the plurality of second pixel dots adjacent to the first pixel dot.

2. The pixel structure according to claim 1, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel are sub-pixels of different colors.

3. The pixel structure according to claim 2, wherein the plurality of sub-pixels are arranged linearly in the row direction.

4. The pixel structure according to claim 3, wherein the plurality of sub-pixels are arranged linearly in the column direction.

5. The pixel structure according to claim 1, wherein the first, second, and third sub-pixels are respectively red, green, and blue sub-pixels arranged in a varying order.

6. A display panel, comprising:

a plurality of pixel structures; and

a signal driver,

wherein each pixel structure of the plurality of pixel structures comprises;

a pixel array, wherein the pixel array comprises a plurality of pixels, each comprising a first sub-pixel, a second sub-pixel, and a third sub-pixel; and

a plurality of pixel dots, each comprising a plurality of sub-pixels from two adjacent rows of sub-pixels in the pixel array,

wherein the sub-pixels in any two of the adjacent rows of sub-pixels in the pixel array are shared by the any two of the adjacent rows of sub-pixels in the pixel array,

wherein the plurality of pixel dots includes a first pixel dot and a plurality of second pixel dots adjacent to the first pixel dot, the first pixel dot includes a 2×

3 matrix of sub-pixels and each of the plurality of second pixel dots includes a 2×

3 matrix of sub-pixels,

wherein the 2×

3 matrix of sub-pixels of the first pixel dot includes two sub-pixels and four sub-pixels, each of the two sub-pixels is shared by a single second pixel dot of the plurality of second pixel dots, and each of the four sub-pixels is shared by three second pixel dots of the plurality of second pixel dots,

wherein the pixel array includes a plurality of first pixel rows, a plurality of second pixel rows and a plurality of third pixel rows, wherein a first pixel row comprises a row of the first sub-pixel, the second sub-pixel, and a third sub-pixel, arranged in that repeated order, the second pixel row comprises a row of the third sub-pixel, the first sub-pixel, and the second sub-pixel arranged in that repeated order, and a third pixel row comprises a row of the second sub-pixel, the third sub-pixel, and the first sub-pixel arranged in that repeated order,

wherein in the pixel array, the first sub-pixel, the second sub-pixel and the third sub-pixel that are consecutively arranged in one of the first, the second and the third pixel rows include X number of virtual pixel dots and have a width of W, each sub-pixel has a length of one unit length, each of the X number of the virtual pixel dots has a length of one unit length and a width of Y, and W=X*Y, where Y=C/A, C denotes a constant which is 1 inch, A denotes pixel per inch, and 1<

X≤

3,

wherein each sub-pixel in the first pixel dot is shared by at least two virtual pixel dots, and each virtual pixel dot, containing a plurality of virtual sub-pixels, includes a partial portion of the first sub-pixel, the second sub-pixel and the third sub-pixel that are consecutively arranged, and

wherein each sub-pixel in the first pixel dot includes a plurality of portions, each of the plurality of portions including a virtual sub-pixel corresponding to one of the plurality of second pixel dots adjacent to the first pixel dot.

7. A pixel compensation method for a display panel, applicable to a pixel structure comprising a pixel array, wherein the pixel array comprises:

a plurality of pixels, each comprising a first sub-pixel, a second sub-pixel, and a third sub-pixel; and

a plurality of pixel dots, each comprising a plurality of sub-pixels from two adjacent rows of sub-pixels in the pixel array, wherein the sub-pixels in any two of the adjacent rows of sub-pixels in the pixel array are shared by the any two of the adjacent rows of sub-pixels in the pixel array, wherein the plurality of pixel dots includes a first pixel dot and a plurality of second pixel dots adjacent to the first pixel dot, the first pixel dot includes a 2×

3 matrix of sub-pixels and each of the plurality of second pixel dots includes a 2×

3 matrix of sub-pixels, wherein the 2×

3 matrix of sub-pixels of the first pixel dot includes two sub-pixels and four sub-pixels, each of the two sub-pixels is shared by a single second pixel dot of the plurality of second pixel dots, and each of the four sub-pixels is shared by three second pixel dots of the plurality of second pixel dots, wherein the pixel array includes a plurality of first pixel rows, a plurality of second pixel rows and a plurality of third pixel rows, wherein a first pixel row comprises a row of the first sub-pixel, the second sub-pixel, and a third sub-pixel, arranged in that repeated order, the second pixel row comprises a row of the third sub-pixel, the first sub-pixel, and the second sub-pixel arranged in that repeated order, and a third pixel row comprises a row of the second sub-pixel, the third sub-pixel, and the first sub-pixel arranged in that repeated order, and wherein in the pixel array, the first sub-pixel, the second sub-pixel and the third sub-pixel that are consecutively arranged in one of the first, the second and the third pixel rows include X number of virtual pixel dots and have a width of W, each sub-pixel has a length of one unit length, each of the X number of the virtual pixel dots has a length of one unit length and a width of Y, and W=X*Y, where Y=C/A, C denotes a constant which is 1 inch, A denotes pixel per inch, and 1<

X≤

3, wherein each sub-pixel in the first pixel dot is shared by at least two virtual pixel dots, and each virtual pixel dot, containing a plurality of virtual sub-pixels, includes a partial portion of the first sub-pixel, the second sub-pixel and the third sub-pixel that are consecutively arranged, and wherein each sub-pixel in the first pixel dot includes a plurality of portions, each of the plurality of portions including a virtual sub-pixel corresponding to one of the plurality of second pixel dots adjacent to the first pixel dot,

wherein the method comprises;

sharing at least one of the plurality of surrounding sub-pixels and the first sub-pixel in the first pixel dot, by sub-pixels in the one of the plurality of second pixel dots adjacent to the first pixel dot;

providing the first pixel dot with several sub-pixels of a same color, wherein a total luminance of the several sub-pixels of the same color is provided evenly by the several sub-pixels of the same color, and wherein the total luminance of the several sub-pixels of the same color is a sum of the luminance of the several sub-pixels of the same color;

providing sub-pixels of respective colors in the first pixel dot with the total luminance at a uniform ratio thereof to a highest luminance of the each sub-pixel of the respective colors, such that for each color, a ratio of the highest luminance of the sub-pixels to the total luminance of the sub-pixels is the same as the corresponding ratio for the other colors;

providing several additional second pixel dots adjacent to the first pixel dot to surround the first pixel dot, wherein the sub-pixels in the first pixel dot and sub-pixels in one of the several additional second pixel dots adjacent to the first pixel dot are shared by the first pixel dot and the one of the several additional second pixel dots adjacent to the first pixel dot; and

inputting, by a signal driver, a signal to the each sub-pixel of the display panel, wherein the input signal is configured to control display luminance of the each sub-pixel, wherein the display luminance of the each sub-pixel is a sum of a luminance of the each sub-pixel in the first pixel dot and a luminance of the each sub-pixel in the one of the several additional second pixel dots, and wherein the display luminance of the each sub-pixel is the maximum luminance thereof.

8. The pixel compensation method for the display panel according to claim 7, wherein a single sub-pixel in the pixel structure is shared twice or four times.