Head-mounted display apparatus with color sequential illumination

• US 5,673,059 A
• Filed: 03/23/1995
• Issued: 09/30/1997
• Est. Priority Date: 03/23/1994
• Status: Expired due to Term

• Current Assignee: Kopin Corporation
• Original Assignee: Kopin Corporation
• Inventors: Gale, Ronald, Ronzani, Peter A., Pombo, Stephen, Zavracky, Matthew, Chern, Wen-Foo
• Primary Examiner(s): Powell, Mark R.
• Application Number:
  US08/410,124
• Time in Patent Office: 922 Days
• Field of Search: 345/8, 345/38, 345/87, 345/88, 345/89, 345/90, 348/53, 348/742, 348/743
• US Class Current: 345/8
• CPC Class Codes: G02B 2027/0112 comprising device for genereting colour display
• CPC Class Codes: G02B 2027/0132 comprising binocular systems
• CPC Class Codes: G02B 2027/0138 comprising image capture systems, e.g. camera
• CPC Class Codes: G02B 2027/014 comprising information/image processing systems
• CPC Class Codes: G02B 2027/0156 with optionally usable elements
• CPC Class Codes: G02B 2027/0178 Eyeglass type eyeglass details G02C
• CPC Class Codes: G02B 27/017 Head mounted
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 5/30 Polarising elements light-modulating devices with active elements G02F1/00
• CPC Class Codes: G06F 1/163 Wearable computers, e.g. on a belt
• CPC Class Codes: H04N 9/30 using solid-state colour display devices
• CPC Class Codes: H04N 9/3117 by using a sequential colour filter producing two or more colours simultaneously, e.g. by creating scrolling colour bands

Abstract

A color active matrix display system allows random access of pixel electrodes. The control electronics is fabricated with the active matrix circuitry using single crystal silicon technology. The control electronics includes a random access data scanner and random access spec scanners. By selectively actuating pixel electrodes in the active matrix display region, compressed video information can be directly displayed on the active matrix display panel. Color stripes are used to generate sequential color systems to produce a color image from the active matrix display panel.

Claims

1. A head-mounted display apparatus comprising:

a display panel having pixels for forming an image to be displayed to a viewer by selectively passing light; and

a sequential color generator optically disposed between a light source for generating light and the display panel, the sequential color generator operating on the light from the light source to direct a plurality of primary colors toward the display panel in a sequential order; and

a frame that mounts the panel and sequential color generator on a user'"'"'s head.

2. The apparatus of claim 1 wherein the light source includes a plurality of light emitters.

3. The apparatus of claim 2 wherein the light emitters include a red emitter, a green emitter and a blue emitter.

4. The apparatus of claim 1 wherein the display panel includes an active matrix liquid crystal display (AMLCD) .

5. The apparatus of claim 1 wherein the sequential color generator includes an electronic color filter.

6. The apparatus of claim 5 wherein the electronic color filter includes a plurality of ferroelectric liquid crystal (FLC) color filters.

7. The apparatus of claim 1 wherein the sequential color generator is a diffractive optic element which splits the light from the light source into a predetermined pattern of color light.

8. The apparatus of claim 1 wherein the diffractive optic element is a binary optic element.

9. The apparatus of claim 1 further comprising a sequential color driver responsive to video information from a video source and in response thereto actuating the sequential color generator to sequentially illuminate each pixel on the display panel with primary colors so the viewer perceives a color image from the display panel over time.

10. A head-mounted display apparatus comprising:

a monocular display module mounted on a frame to be positioned on a user'"'"'s head;

a display panel within the module having pixels that form an image to be displayed to a viewer by selectively passing light; and

a sequential color generator optically disposed between a light source for generating light and the display panel such that a plurality of colors from the light source can be directed through any selected pixels, the sequential color generator directing the plurality of colors of light from the light source toward the display panel in a sequential order to provide a color image.

11. The apparatus of claim 10 wherein the light source includes a plurality of light emitters.

12. The apparatus of claim 11 wherein the light emitters include a red emitter, a green emitter and a blue emitter.

13. The apparatus of claim 10 wherein the display panel includes an active matrix liquid crystal display (AMLCD).

14. A method of using a communications device for displaying a color image to a viewer'"'"'s eye comprising the steps of:

providing a wireless transceiver for providing audio and video information to the user;

providing an audio transducer adjacent to the user;

providing a display panel adjacent to the user'"'"'s eye, the display panel having pixels for forming an image;

providing a sequential color generator in an optical path adjacent to the display panel;

generating a plurality of colors with the sequential color generator and directing the colors sequentially at any selected pixels of the display panel; and

displaying a partial image with each color in sequence to provide a color image to the user.

15. The method of claim 14 wherein the step of generating colors includes generating color stripes.

16. The method of claim 15 wherein each color is directed toward at least one row of the display panel.

17. The method of claim 14 wherein the step of generating color includes generating color blocks.

18. The method of claim 17 wherein the colors comprise a pair of colors.

19. The method of claim 14 wherein the step of generating colors includes generating colors from the group comprising red, green, blue and black.

20. The method of claim 14 wherein the sequential color generator is an electronic color filter.

21. A communications device for interfacing with a user, comprising:

a wireless transceiver for providing audio and video information to the user;

an audio transducer adjacent to the user;

a display panel having pixels for forming an image adjacent to the user'"'"'s eye;

a light source providing light having a plurality of color components; and

a sequential color circuit connected to the display panel such that each color can be sequentially directed at each pixel of the display panel to form a partial image of each color component in sequence, the sequence of partial images forming a color image.

22. The device of claim 21 further comprising a sequential color generator wherein the sequential color generator generates color stripes.

23. The device of claim 21 further comprising a sequential color generator that directs each color toward at least one row of the display panel.

24. The device of claim 21 further comprising a sequential color generator that generates color blocks.

25. The device of claim 21 wherein the colors comprise a pair of colors.

26. The device of claim 21 wherein the colors are selected from the group comprising red, green, and blue.

27. The device of claim 21 further comprising a sequential color generator that is an electronic color filter.

28. The device of claim 21 wherein the light source further comprises a red light source, a green light source, and a blue light source.

29. The device of claim 21 wherein the light source comprises a plurality of light emitting diodes.

30. The device of claim 21 wherein the device comprises a portable telephone.

31. The device of claim 21 further comprising a microphone.

32. The device of claim 21 further comprising a camera.