Pixel interleaving configurations for use in high definition electronic sign displays

• US 7,907,133 B2
• Filed: 04/12/2007
• Issued: 03/15/2011
• Est. Priority Date: 04/13/2006
• Status: Active Grant

• Current Assignee: Daktronics Incorporated
• Original Assignee: Daktronics Incorporated
• Inventors: Nearman, Nathan L., Luke, Glenn P., Gloege, Chad N., Schulte, Joseph G., Hansen, Ryan M., Mueller, Matt R., Joffer, Brent A., Mutschelknaus, Shannon Lee, Bravek, Eric S., Wendler, Brett D.
• Primary Examiner(s): NGUYEN, KIMNHUNG T
• Application Number:
  US11/786,720
• Publication Number:
  US 20080225143A1
• Time in Patent Office: 1,433 Days
• Field of Search: 345/30, 345/39, 345/55, 345 76- 83, 345/204, 345/418, 348/280, 348/E5.131, 348/E9.024, 348/E9.027, 348/100, 348/742, 405/64, 405/74
• US Class Current: 345/204
• CPC Class Codes: G09F 9/3026 Video wall, i.e. stackable semiconductor matrix display modules video wall control systems G06F3/1446, G09G2300/026
• 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 2310/0224 Details of interlacing
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2340/0428 Gradation resolution change
• CPC Class Codes: G09G 2340/0457 Improvement of perceived resolution by subpixel rendering
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 3/32 semiconductive, e.g. using light-emitting diodes [LED]

Abstract

Pixel interleaving configurations for use in high definition electronic sign displays where each and every scan line includes full red, green, and blue color representation to provide for high resolution electronic video sign displays.

Claims

1. An electronic display comprising:

a plurality of electronically scannable lines including LED pixels, each LED pixel having one red LED, one green LED and one blue LED associated therewith;

the plurality of electronically scannable lines including,

a first scannable line having a plurality of horizontally spaced LED pixels; and

a second scannable line having a plurality of horizontally spaced LED pixels, the second scannable line being spaced at least partially below the first scannable line with each intermediate pixel in the second scannable line being equally spaced from and positioned between an adjacent pair of pixels in the first scannable line,

wherein the number of electrically scannable lines and the number of LED pixels in each electronically scannable line is sufficient to provide a predetermined display area.

2. The electronic display of claim 1, wherein the plurality of electronically scannable lines including LED pixels are positioned and supported on a circuit board.

3. The electronic display of claim 2, wherein the LED pixels on the circuit board age at a substantially even rate.

4. The electronic display of claim 1, wherein the red LED, the green LED and the blue LED in each pixel are spaced from, and in vertical alignment with, one another.

5. The electronic display of claim 4, wherein one of the red LED, the green LED and the blue LED is located at a top position,

one of the remaining two LEDs is located at a bottom position, and

the remaining LED is located at a middle position, equally spaced from the top and bottom positions.

6. The electronic display of claim 5, wherein the second scannable line is spaced in an interleaved manner with respect to the first scannable line, such that the LED located at the top position of each pixel in the second scannable line is in horizontally spaced alignment with the LED located at the bottom position of each pixel in the first scannable line.

7. The electronic display of claim 6, wherein each successive scannable line, of the plurality of electronically scannable lines, has the same physically spatial relationship as the first and second electronically scannable lines, such that each successive scannable line is interleaved with its preceding scannable line.

8. The electronic display of claim 6, wherein the interleaved arrangement substantially prevents side angle color shift.

9. The electronic display of claim 1, wherein the red LED, the green LED and the blue LED in each pixel are arranged in a triangular configuration.

10. The electronic display of claim 9, wherein two of the red LED, the green LED and the blue LED are in vertically spaced alignment with one another and form two corners of the triangular configuration, and the other of the red LED, the green LED and the blue LED forms the remaining corner of the triangular configuration.

11. The electronic display of claim 1, wherein the plurality of electronically scannable lines further includes,

a third scannable line having a plurality of horizontally spaced LED pixels, the third scannable line being spaced below the second scannable line with each pixel in the third scannable line being in vertical alignment with a corresponding pixel in the first scannable line;

and

a fourth scannable line having a plurality of horizontally spaced LED pixels, the fourth scannable line being spaced below the third scannable line with each pixel in the fourth scannable line being in vertical alignment with a corresponding pixel in the second scannable line.

12. The electronic display of claim 11, wherein each successive scannable line, of the plurality of electronically scannable lines, is spaced below a preceding scannable line with each pixel in the successive line being alternately vertically aligned with a corresponding pixel in a preceding scannable line twice removed therefrom.

13. The electronic display of claim 1, wherein the second scannable line is horizontally offset from the first scannable line.

14. An electronic display comprising:

a plurality of electronically scannable lines including LED pixels, the plurality of electronically scannable lines including alternately even numbered scannable lines and odd numbered scannable lines,

each LED pixel having one red LED, one green LED and one blue LED associated therewith,

each even numbered scannable line having a plurality of horizontally spaced LED pixels therein, each odd numbered scannable line having a plurality of horizontally spaced LED pixels therein, each alternate odd numbered scannable line being spaced adjacently below, at least in part, an even numbered scannable line with each intermediate pixel in the odd numbered scannable line being equally spaced from and between two adjacently spaced pixels in the even numbered scannable line, and

wherein the number of electrically scannable lines and the number of LED pixels in each electronically scannable line is sufficient to provide a predetermined display area.

15. The electronic display of claim 14, wherein the plurality of electronically scannable lines of LED pixels are positioned and supported on a circuit board.

16. The electronic display of claim 14, wherein the red LED, the green LED and the blue LED in each pixel are spaced from, and in vertical alignment with, one another.

17. The electronic display of claim 16, wherein one of the red LED, the green LED and the blue LED is located at a top position,

one of the remaining two LEDs is located at a bottom position, and

the remaining LED is located at a middle position, equally spaced from the top and bottom positions.

18. The electronic display of claim 17, wherein each of the odd numbered scannable lines are spaced in an interleaved manner with respect to each of the even numbered scannable lines, such that the LED located at the top position of each pixel in the odd numbered electronically scannable line is in horizontally spaced alignment with the LED located at the bottom position of each pixel in the even numbered scannable line.

19. The electronic display of claim 18, wherein each successive scannable line, of the plurality of electronically scannable lines, has the same physically spatial relationship as the even numbered and the odd numbered scannable lines, such that each successive scannable line is interleaved with its preceding scannable line.

20. The electronic display of claim 14, wherein the red LED, the green LED and the blue LED in each pixel are arranged in a triangular configuration.

21. The electronic display of claim 20, wherein two of the red LED, the green LED and the blue LED are in vertically spaced alignment with one another and form two corners of the triangular configuration, and the other of the red LED, the green LED and the blue LED forms the remaining corner of the triangular configuration.