Light-emitting diode display device including a sensor unit

• US 20050231499A1
• Filed: 08/20/2004
• Published: 10/20/2005
• Est. Priority Date: 04/16/2004
• Status: Abandoned Application

• Current Assignee: Dynascan Technology Corporation (Dynascan Technology)
• Original Assignee: Dynascan Technology Corporation (Dynascan Technology)
• Inventors: Wang, Tzuen-Yih, Huang, Yan-Hsun
• Application Number:
  US10/922,738
• Publication Number:
  US 20050231499A1
• Time in Patent Office: Days
• US Class Current: 345/207
• CPC Class Codes: G09G 2360/14 Detecting light within display terminals, e.g. using a single or a plurality of photosensors
• CPC Class Codes: G09G 3/005 forming an image using a quickly moving array of imaging elements, causing the human eye to perceive an image which has a larger resolution than the array, e.g. an image on a cylinder formed by a rotating line of LEDs parallel to the axis of rotation
• CPC Class Codes: G09G 3/32 semiconductive, e.g. using light-emitting diodes [LED]

Abstract

A light-emitting diode display device includes a support unit, a display body that is mounted movably on the support unit, light-emitting diodes that are mounted on the display body, a drive unit that is coupled to the display body and that is capable of driving periodic movement of the display body relative to the support unit, a controller unit that is coupled to the light-emitting diodes and that is operable so as to actuate the light-emitting diodes for presenting images while the display body is driven by the drive unit to move relative to the support unit, and a photo-detector that is mounted on the display body, that generates an output signal in response to an incident light beam, and that is coupled to the controller unit such that the controller unit operates in accordance with the output signal generated by the photo-detector.

Claims

1. A light-emitting diode display device comprising:

a support unit;

a display body mounted movably on said support unit and having a viewing surface;

a display panel mounted on said viewing surface of said display body and including a plurality of light-emitting diodes;

a drive unit coupled to said display body and capable of driving periodic movement of said display body relative to said support unit;

a controller unit coupled to said display panel and operable so as to actuate said light-emitting diodes of said display panel for presenting images while said display body is driven by said drive unit to move relative to said support unit; and

a sensor unit mounted on said display body and including a photo-detector that generates an output signal in response to an incident light beam, said sensor unit being coupled to said controller unit such that said controller unit operates in accordance with the output signal generated by said sensor unit.

2. The light-emitting diode display device as claimed in claim 1, wherein said photo-detector is one of a photo-diode, a photo-resistor, a photo-transistor and an infrared sensor.

3. The light-emitting diode display device as claimed in claim 1, wherein said viewing surface is generally rectangular, and has a longitudinal axis.

4. The light-emitting diode display device as claimed in claim 3, wherein said drive unit drives said display body to reciprocate back and forth along the longitudinal axis relative to said support unit.

5. The light-emitting diode display device as claimed in claim 4, wherein said display panel and said sensor unit are mounted on said viewing surface at non-overlapping positions.

6. The light-emitting diode display device as claimed in claim 1, wherein said viewing surface is generally cylindrical, and has an axis.

7. The light-emitting diode display device as claimed in claim 6, wherein said drive unit drives said display body to rotate relative to said support unit about said axis.

8. The light-emitting diode display device as claimed in claim 7, wherein said display panel and said sensor unit are mounted on said viewing surface at non-overlapping positions.

9. The light-emitting diode display device as claimed in claim 1, wherein said viewing surface is generally spherical.

10. The light-emitting diode display device as claimed in claim 9, wherein said drive unit drives said display body to rotate relative to said support unit about an axis.

11. The light-emitting diode display device as claimed in claim 10, wherein said display panel and said sensor unit are mounted on said viewing surface at non-overlapping positions.

12. The light-emitting diode display device as claimed in claim 1, wherein said viewing surface is generally circular.

13. The light-emitting diode display device as claimed in claim 12, wherein said drive unit drives said display body to rotate relative to said support unit about an axis.

14. The light-emitting diode display device as claimed in claim 13, wherein said display panel and said sensor unit are mounted on said viewing surface at non-overlapping positions.

15. The light-emitting diode display device as claimed in claim 1, further comprising an encoder coupled to said controller unit and capable of determining spatial positions of said light-emitting diodes and said photo-detector with respect to a reference position while said display body is driven by said drive unit to move relative to said support unit.