Display and optical pointer systems and related methods

• US 20110063214A1
• Filed: 08/05/2010
• Published: 03/17/2011
• Est. Priority Date: 09/05/2008
• Status: Abandoned Application

• Current Assignee: Lutron Technology Company LLC
• Original Assignee: Lutron Technology Company LLC
• Inventors: Knapp, David J.
• Application Number:
  US12/806,114
• Publication Number:
  US 20110063214A1
• Time in Patent Office: Days
• US Class Current: 345/158
• CPC Class Codes: H04L 12/43 with synchronous transmission, e.g. time division multiplex [TDM], slotted rings
• CPC Class Codes: H04L 12/437 Ring fault isolation or reconfiguration for SDH/SONET ring networks H04J3/085
• CPC Class Codes: H04L 12/6418 Hybrid transport
• CPC Class Codes: H04L 2012/40273 the transportation system being a vehicle

Abstract

Display and optical pointer systems and related methods are disclosed that utilize LEDs in a display device to respond to optical signals from optical pointing devices. In part, the disclosed embodiments relate to displays with arrays of LEDs and associated pointing devices that communicate with individual LEDs in the arrays using visible light. The LED arrays can produce images directly as in LED billboards and sports arena scoreboards or can produce the backlight for LCD screens for instance. The pointing devices communicate with individual pixels or groups of pixels using a beam of light that may or may not be modulated with data, which is detected by the LEDs in the array that are exposed to the beam. Periodically, the LEDs in an array stop producing light and are configured with an associated driver device to detect light from the pointing device. Such configurations enable the user to point and click at on screen displays much like a computer mouse.

Claims

1. A display device comprising:

an array of LEDs configured to emit light;

wherein the array of LEDs is further configured to be responsive to light produced by a pointing device.

2. The display device as recited in claim 1, wherein light produced by individual LEDs in the array of LEDs are configured to be momentarily turned off to detect the light produced by the pointing device.

3. The display device as recited in claim 2, wherein light produced by the pointing device is detected by measuring a voltage induced across an individual LED in the array by the light from the pointing device.

4. The display device as recited in claim 1, wherein light produced by the pointing device is detected by measuring a voltage induced across an individual LED in the array by the light from the pointing device.

5. The display device as recited in claim 1, wherein the array of LEDs is made from organic LEDs.

6. The display device as recited in claim 1, wherein the array of LEDs is configured to provide a backlight for an LCD display.

7. The display device as recited in claim 1, wherein the array of LEDs is made from discreet LED components.

8. The display device as recited in claim 1, wherein a menu is produced on the display device in response to light from the pointing device.

9. The display device as recited in claim 1, wherein the array of LEDs is responsive to light produced by the pointing device that is modulated with data.

10. The display device as recited in claim 1, wherein the array of LEDs is responsive to on and off sequences of light from the pointing device.

11. The display device as recited in claim 1, wherein the array of LEDs is responsive to a laser pointer as the pointing device.

12. A method for operating a display device, comprising:

providing a display device comprising an array of LEDs that is responsive to light produced by a pointing device;

utilizing a pointing device to cause light to be incident on the array of LEDs within the display device; and

responding to the incident light with the display device.

13. The method as recited in claim 12, further comprising turning off the light produced by individual LEDs in the array of LEDs momentarily to detect the light produced by the pointing device.

14. The method as recited in claim 13, further comprising detecting the light produced by the pointing device by measuring a voltage induced across an individual LED in the array by the light from the pointing device.

15. The method as recited in claim 12, further comprising detecting the light produced by the pointing device by measuring a voltage induced across an individual LED in the array by the light from the pointing device.

16. The method as recited in claim 12, wherein the LED array is made from organic LEDs.

17. The method as recited in claim 12, further comprising using the LED array to provide a backlight for an LCD display.

18. The method as recited in claim 12, wherein the LED array is made from conventional discreet LED components.

19. The method as recited in claim 12, further comprising producing a menu on the display device in response to light from the pointing device.

20. The method as recited in claim 12, further comprising producing with the pointing device light that is modulated with data.

21. The method as recited in claim 12, wherein the responding step comprises responding to on and off sequences of light from the pointing device.

22. The method as recited in claim 12, further comprising utilizing a laser pointer as the pointing device is a laser pointer.

23. A system, comprising:

a pointing device configured to output light; and

a display device comprising an array of LEDs that is responsive to the light produced by the pointing device.

24. The system as recited in claim 23, wherein the light produced by individual LEDs in the array of LED are momentarily turned off to detect the light produced by the pointing device.

25. The system as recited in claim 24, wherein light produced by the pointing device is detected by measuring a voltage induced across an individual LED in the array by the light from the pointing device.

26. The system as recited in claim 23, wherein light produced by the pointing device is detected by measuring a voltage induced across an individual LED in the array by the light from the pointing device.

27. The system as recited in claim 23, wherein the display device is configured to produce a menu in response to light from the pointing device.

28. The system as recited in claim 23, wherein the pointing device is configured to output that is modulated with data.

29. The system as recited in claim 23, wherein the display device is configured to be responsive to on and off sequences of light from the pointing device.

30. The system as recited in claim 23, wherein the pointing device is a laser pointer.