Microdisplay for portable communication systems

• US 20080048960A1
• Filed: 09/21/2007
• Published: 02/28/2008
• Est. Priority Date: 10/31/1996
• Status: Abandoned Application

• Current Assignee: Kopin Corporation
• Original Assignee: Kopin Corporation
• Inventors: Pombo, Stephen, Bumgardner, Rodney, Fan, John C., Jacobsen, Jeffrey, Zavracky, Matthew
• Application Number:
  US11/903,561
• Publication Number:
  US 20080048960A1
• Time in Patent Office: Days
• US Class Current: 345/87
• CPC Class Codes: G09G 2330/022 in absence of operation, e.g. no data being entered during a predetermined time
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence
• CPC Class Codes: H04N 2007/145 Handheld terminals
• CPC Class Codes: H04N 7/142 Constructional details of the terminal equipment, e.g. arrangements of the camera and the display

Abstract

The invention relates to a microdisplay system that utilizes a small high resolution active matrix liquid crystal display with an illumination system and a magnifying optical system to provide a hand held communication display device. The system can employ an LED illumination system and cellular communication or processor circuits within a compact housing to provide communication devices such as pagers, telephones, televisions, and hand held computer devices with a compact high resolution video display.

Claims

1. A method of displaying an image on a wireless telephone, comprising:

receiving audio and image data with a transceiver; and

operating a display control circuit connected to the transceiver and a matrix display to display an image on the display, the matrix display including an array of pixel electrodes, the array of pixel electrodes having an active area of less than about 100 mm².

2. The method of claim 1 further comprising generating image data with a camera.

3. The method of claim 2 further comprising selecting whether the image from the camera is seen on the display, transmitted to a remote location, or both.

4. The method of claim 1 further comprising providing the array of pixel electrodes with at least about 75,000 pixel electrodes.

5. The method of claim 4 further comprising providing each pixel electrode with a width of less than about 10 microns.

6. The method of claim 5 further comprising providing each pixel electrode with a width of less than about 8 microns.

7. The method of claim 4 further comprising providing the array of pixel electrodes with an active area between about 5 mm² and 80 mm².

8. The method of claim 1 further comprising providing the array of pixel electrodes with at least about 300,000 pixel electrodes.

9. The method of claim 1 further comprising displaying the image on an LCD display.

10. The method of claim 9 further comprising transmitting light through the array of pixel electrodes with a display light source.

11. The method of claim 10 further comprising distributing the light with a diffuser interposed between the display light source and the LCD display.

12. The method of claim 1 further comprising focusing the image with a lens for viewing.

13. A wireless telephone comprising:

a transceiver for receiving audio and image data;

a display control circuit connected to the transceiver; and

a matrix display connected to the display control circuit for displaying an image on the display, the matrix display including an array of pixel electrodes, the array of pixel electrodes having an active area of less than about 100 mm².

14. The telephone of claim 13 further comprising a camera for generating image data.

15. The telephone of claim 14 in which the image from the camera is seen on the display, transmitted to a remote location, or both.

16. The telephone of claim 13 in which the array of pixel electrodes has at least about 75,000 pixel electrodes.

17. The telephone of claim 16 in which each pixel electrode has a width of less than about 10 microns.

18. The telephone of claim 17 in which each pixel electrode has a width of less than about 8 microns.

19. The telephone of claim 16 in which the array of pixel electrodes has an active area between about 5 mm² and 80 mm².

20. The telephone of claim 13 in which the array of pixel electrodes has at least about 300,000 pixel electrodes.

21. The telephone of claim 13 in which the display is an LCD display.

22. The telephone of claim 21 further comprising a display light source for transmitting light through the array of pixel electrodes.

23. The telephone of claim 22 further comprising a diffuser interposed between the display light source and the LCD display for distributing the light.

24. The telephone of claim 13 further comprising a lens for focusing the image for viewing.