Display apparatus

• US 8,736,518 B2
• Filed: 12/07/2011
• Issued: 05/27/2014
• Est. Priority Date: 08/09/2011
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Park, Jong-Woong, Yang, Ji-Yeon, Lee, Joo-Hyung, Jeong, Geun-Young, Jang, Won-Woo
• Primary Examiner(s): OLSON, JASON C
• Application Number:
  US13/313,510
• Publication Number:
  US 20130038513A1
• Time in Patent Office: 902 Days
• Field of Search: None
• US Class Current: 345/55
• CPC Class Codes: G09G 2300/0439 Pixel structures
• 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 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: H10K 50/813 characterised by their shape
• CPC Class Codes: H10K 59/353 characterised by the geometrical arrangement of the RGB subpixels
• CPC Class Codes: H10K 59/80515 characterised by their shape

Abstract

A display apparatus includes a substrate and pixels defined on the substrate, where each of the pixels is a hexagon having a first side, a second side, a third side, a fourth side, a fifth side and a sixth side, and the sum of the length of the first side and the length of the fourth side is greater than half the sum of the lengths of the second, third, fifth and sixth sides.

Claims

1. A display apparatus comprising:

a substrate;

a plurality of pixels defined on the substrate;

a plurality of pixel electrodes formed on the substrate, wherein the pixel electrodes correspond respectively to the pixels and have substantially the same shape as the pixels; and

a rendering driver driving the pixel electrodes and converting a first data matrix of 2n rows and 2m columns into a second data matrix of 2n rows and m columns, wherein each element of the first data matrix and the second data matrix comprises a first value, a second value and a third value, and the first value, the second value and the third value correspond respectively to the first color pixel, the second color pixel and the third color pixel arranged alternately, among the plurality of pixels,

wherein each of the pixels is a hexagon comprising in order a first side, a second side, a third side, a fourth side, a fifth side and a sixth side, each of said sides having a defined length, and wherein the sum of the length of the first side and the length of the fourth side is greater than half the sum of the length of the second side, the length of the third side, the length of the fifth side, and the length of the sixth side.

2. The display apparatus of claim 1, wherein the length of the first side and the length of the fourth side are substantially equal.

3. The display apparatus of claim 1, wherein the first side and the fourth side face each other and are substantially parallel to each other.

4. The display apparatus of claim 1, wherein the sum of the length of the first side and the length of the fourth side is substantially equal to the sum of:

the length of the second side, the length of the third side, the length of the fifth side, and the length of the sixth side.

5. The display apparatus of claim 1, wherein internal angles of the hexagon are substantially equal.

6. The display apparatus of claim 1, wherein the pixels are arranged in a matrix, wherein a (k+1)th row is shifted to the left or right by half a column from a kth row.

7. The display apparatus of claim 6, wherein a pitch of each pixel in a column direction is greater than a pitch of each pixel in a row direction.

8. The display apparatus of claim 7, wherein the pitch of each pixel in the column direction is twice the pitch of each pixel in the row direction.

9. The display apparatus of claim 1, wherein the pixels comprise a first color pixel, a second color pixel, and a third color pixel arranged alternately.

10. The display apparatus of claim 1, wherein the rendering driver sets a mean value of a first value of a (2i−

1, j) element of the first data matrix and a first value of a (2i, j) element of the first data matrix as a first value of a (i, j) element of the second data matrix, sets a mean value of a second value of the (2i−

1, j) element of the first data matrix and a second value of the (2i, j) element of the first data matrix as a third value of the (i, j) element of the second data matrix, and sets a mean value of a third value of the (2i−

1, j) element of the first data matrix and a third value of the (2i, j) element of the first data matrix as a second value of the (i, j) element of the second data matrix, where i is a positive integer equal to or less than m, and j is a positive integer equal to or less than 2n.

11. The display apparatus of claim 10, wherein when rendering a vertical line, the rendering driver sets a mean value of a first value of a (2a−

1, 2b−

1) element of the first data matrix and a first value of a (2a−

1, 2b) element of the first data matrix as a first value of a (a, 2b−

1) element of the second data matrix, sets a mean value of a second value of the (2a−

1, 2b−

1) element of the first data matrix and a second value of the (2a−

1, 2b) element of the first data matrix as a first value of a (a, 2b) element of the second data matrix, sets a mean value of a third value of the (2a−

1, 2b−

1) element of the first data matrix and a third value of the (2a−

1, 2b) element of the first data matrix as a second value of the (a, 2b−

1) element of the second data matrix, sets a mean value of a first value of a (2a, 2b−

1) element of the first data matrix and a first value of a (2a, 2b) element of the first data matrix as a second value of the (a, 2b) element of the second data matrix, sets a mean value of a second value of the (2a, 2b−

1) element of the first data matrix and a second value of the (2a, 2b) element of the first data matrix as a third value of the (a, 2b−

1) element of the second data matrix, and sets a mean value of a third value of the (2a, 2b−

1) element of the first data matrix and a third value of the (2a, 2b) element of the first data matrix as a third value of the (a, 2b) element of the second data matrix, where a is a positive integer equal to or less than m, and b is a positive integer equal to or less than 2n.

12. The display apparatus of claim 1, wherein the rendering driver sets the mean value of the first value of the (2i−

1, j) element of the first data matrix and the first value of the (2i, j) element of the first data matrix as the first value of the (i, j) element of the second data matrix, sets the mean value of the second value of the (2i−

1, j) element of the first data matrix and the second value of the (2i, j) element of the first data matrix as the second value of the (i, j) element of the second data matrix, and sets the mean value of the third value of the (2i−

1, j) element of the first data matrix and the third value of the (2i, j) element of the first data matrix as the third value of the (i, j) element of the second data matrix, where i is a positive integer equal to or less than m, and j is a positive integer equal to or less than 2n.

13. The display apparatus of claim 12, wherein when rendering a vertical line, the rendering driver sets the mean value of the first value of the (2a−

1, 2b−

1) element of the first data matrix and the first value of the (2a−

1, 2b) element of the first data matrix as the first value of the (a, 2b−

1) element of the second data matrix, sets the mean value of the second value of the (2a−

1, 2b−

1) element of the first data matrix and the second value of the (2a−

1, 2b) element of the first data matrix as the second value of the (a, 2b−

1) element of the second data matrix, sets the mean value of the third value of the (2a−

1, 2b−

1) element of the first data matrix and the third value of the (2a−

1, 2b) element of the first data matrix as the first value of the (a, 2b) element of the second data matrix, sets the mean value of the first value of the (2a, 2b−

1) element of the first data matrix and the first value of the (2a, 2b) element of the first data matrix as the second value of the (a, 2b) element of the second data matrix, sets the mean value of the second value of the (2a, 2b−

1) element of the first data matrix and the second value of the (2a, 2b) element of the first data matrix as the third value of the (a, 2b) element of the second data matrix, and sets the mean value of the third value of the (2a, 2b−

1) element of the first data matrix and the third value of the (2a, 2b) element of the first data matrix as the third value of the (a, 2b−

1) element of the second data matrix, where a is a positive integer equal to or less than m, and b is a positive integer equal to or less than 2n.

14. The display apparatus of claim 1, wherein the rendering driver comprises a determination unit which determines whether a vertical line exists in an image to be displayed using the pixels.

15. The display apparatus of claim 14, wherein the determination unit performs a convolution operation on a vertical line determination pattern and the elements of the first data matrix.

16. A display apparatus comprising:

a substrate; and

a plurality of pixels defined on the substrate;

a plurality of pixel electrodes formed on the substrate, wherein the pixel electrodes correspond respectively to the pixels and have substantially the same shape as the pixels; and

a rendering driver driving the pixel electrodes and converting a first data matrix of 2n rows and 2m columns into a second data matrix of 2n rows and m columns, wherein each element of the first data matrix and the second data matrix comprises a first value, a second value and a third value, and the first value, the second value and the third value correspond respectively to the first color pixel, the second color pixel and the third color pixel arranged alternately, among the plurality of pixels,

wherein the pixels are arranged in a matrix, wherein a (k+1)th row is shifted to the left or right by half a column from a kth row, wherein a line that connects centers of gravity of two adjacent pixels in the kth row and lines that connect the centers of gravity of the two adjacent pixels in the kth row to a center of gravity at a shortest straight line distance from the line among centers of gravity of pixels in the (k+1)th row forms an isosceles triangle, and wherein two sides of the isosceles triangle is longer than the other side.

17. The display apparatus of claim 16, wherein each of the pixels is a hexagon comprising in order a first side, a second side, a third side, a fourth side, a fifth side and a sixth side, each of said sides having a defined length, and wherein the sum of the length of the first side and the length of the fourth side is greater than half the sum of:

the length of the second side, the length of the third side, the length of the fifth side, and the length of the sixth side.

18. The display apparatus of claim 17, wherein the length of the first side and the length of the fourth side are substantially equal, and the first side and the fourth side face each other and are substantially parallel to each other.

19. The display apparatus of claim 17, wherein the sum of the length of the first side and the length of the fourth side is substantially equal to the sum of:

the length of the second side, the length of the third side, the length of the fifth side, and the length of the sixth side.

20. The display apparatus of claim 17, wherein a pitch of each pixel in a column direction is twice a pitch of each pixel in a row direction.

21. The display apparatus of claim 16, wherein each of the pixels is a quadrilateral comprising in order a first side, a second side, a third side, and a fourth side, each of said sides having a defined length.

22. The display apparatus of claim 21, wherein the length of the first side and the length of the third side are substantially equal, and the first side and the third side face each other and are substantially parallel to each other.

23. The display apparatus of claim 21, wherein the sum of the length of the first side and the length of the third side is substantially equal to twice the sum of the length of the second side and the length of the fourth side.