Pixel interleaving configurations for use in high definition electronic sign displays

• US 8,269,700 B2
• Filed: 01/26/2012
• Issued: 09/18/2012
• Est. Priority Date: 04/12/2007
• Status: Active Grant

• Current Assignee: Daktronics Incorporated
• Original Assignee: Daktronics Incorporated
• Inventors: Joffer, Brent A., Wendler, Brett David, Luke, Glenn P., Nearman, Nathan Lane, Gloege, Chad Neal, Mutschelknaus, Shannon Lee, Schulte, Joseph Gerard, Bravek, Eric Steven, Hansen, Ryan Mark, Mueller, Matthew Ray
• Primary Examiner(s): Lao, Lun-Yi
• Assistant Examiner(s): SHAH, PRIYANK J
• Application Number:
  US13/359,095
• Publication Number:
  US 20120119980A1
• Time in Patent Office: 236 Days
• Field of Search: 345 76- 83, 345 44- 46, 345/204, 315/169.3, 40541-60715
• US Class Current: 345/76
• CPC Class Codes: G09F 9/302 characterised by the form or geometrical disposition of the individual elements
• 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: G09F 9/33 being semiconductor devices, e.g. diodes
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• 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 2380/06 Remotely controlled electronic signs other than labels
• 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]
• CPC Class Codes: H04N 9/30 using solid-state colour display devices

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 device comprising:

a plurality of lines of LEDs, including at least a first odd line of LEDs, a first even line of LEDs, and a second odd line of LEDs, the lines of LEDs together providing a plurality of blue LEDs, green LEDs, and red LEDs;

a first scan line of LED groupings, each LED grouping of the first scan line comprising a blue LED selected either from the first odd line or from the first even line, a green LED selected either from the first odd line or from the first even line, and a red LED selected either from the first odd line or from the first even line;

a second scan line of LED groupings interleaved with the first scan line of LED groupings, each LED grouping of the second scan line comprising a blue LED selected either from the first even line or from the second odd line, a green LED selected either from the first even line or from the second odd line, and a red LED selected either from the first even line or from the second odd line;

wherein the first and second odd lines include only blue LEDs and red LEDs; and

wherein the first even line includes only green LEDs, and wherein the green LEDs have a view path, in a horizontal plane, up to about 150°

, due to the lack of an obstructing horizontally situated LED in adjacent scanning lines and wherein the red LEDs and the blue LEDs have a view path, in an angled plane, up to about 140°

.

2. The electronic display device of claim 1, wherein one of the blue LED, the green LED, and the red LED of each LED grouping of the first scan line is selected from the first odd line and the other two of the blue LED, the green LED, and the red LED of each LED grouping are selected from the first even line.

3. The electronic display device of claim 1, wherein one of the blue LED, the green LED, and the red LED of each LED grouping of the first scan line is selected from the first even line and the other two of the blue LED, the green LED, and the red LED of each LED grouping are selected from the first odd line.

4. The electronic display device of claim 1, wherein one of the blue LED, the green LED, and the red LED of each LED grouping of the second scan line is selected from the first even line and the other two of the blue LED, the green LED, and the red LED of each LED grouping are selected from the second odd line.

5. The electronic display device of claim 1, wherein one of the blue LED, the green LED, and the red LED of each LED grouping of the second scan line is selected from the second odd line and the other two of the blue LED, the green LED, and the red LED of each LED grouping are selected from the first even line.

6. The electronic display device of claim 1, further comprising a second even line and a third scan line of LED groupings, each LED grouping of the third scan line comprising a blue LED selected either from the second odd line or from the second even line, a green LED selected either from the second odd line or from the second even line, and a red LED selected either from the second odd line or from the second even line.

7. The electronic display device of claim 6, wherein one of the blue LED, the green LED, and the red LED of each LED grouping of the third scan line is selected from the second odd line and the other two of the blue LED, the green LED, and the red LED of each LED grouping are selected from the second even line.

8. The electronic display device of claim 6, wherein one of the blue LED, the green LED, and the red LED of each LED grouping of the third scan line is selected from the second even line and the other two of the blue LED, the green LED, and the red LED of each LED grouping are selected from the second odd line.

9. The electronic display device of claim 6, further comprising a third odd line of LEDs and a fourth scan line of LED groupings, each LED grouping of the fourth scan line comprising a blue LED selected either from the second even line or from the third odd line, a green LED selected either from the second even line or from the third odd line, and a red LED selected either from the second even line or from the third odd line.

10. The electronic display device of claim 9, wherein one of the blue LED, the green LED, and the red LED of each LED grouping of the fourth scan line is selected from the second even line and the other two of the blue LED, the green LED, and the red LED of each LED grouping are selected from the third odd line.

11. The electronic display device of claim 9, wherein one of the blue LED, the green LED, and the red LED of each LED grouping of the fourth scan line is selected from the third odd line and the other two of the blue LED, the green LED, and the red LED of each LED grouping are selected from the second even line.

12. The electronic display device of claim 1, wherein adjacent LEDs are horizontally spaced about 12.5 mm on center.

13. The electronic display device of claim 1, wherein the first odd line, the first even line, and the second odd line extend in a generally horizontal direction.

14. The electronic display device of claim 1, wherein the first odd line, the first even line, and the second odd line extend in a generally vertical direction.

15. The electronic display device of claim 14, wherein the first scan line and the second scan line are vertically spaced about 6.25 mm on center.