Camera display system

• US 6,683,584 B2
• Filed: 07/15/2002
• Issued: 01/27/2004
• Est. Priority Date: 10/22/1993
• Status: Expired due to Fees

• Current Assignee: Kopin Corporation
• Original Assignee: Kopin Corporation
• Inventors: Ronzani, Peter A., Jacobsen, Jeffrey, Gale, Ronald, Pombo, Stephen
• Primary Examiner(s): Marc-Coleman, Marthe Y.
• Application Number:
  US10/195,918
• Publication Number:
  US 20020190923A1
• Time in Patent Office: 561 Days
• Field of Search: 345/8, 345/53, 345/7, 359/630, 358/106, 358/213
• US Class Current: 345/8
• CPC Class Codes: G02B 2027/011 comprising device for correcting geometrical aberrations, distortion
• 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 2027/0143 the two eyes not being equipped with identical nor symmetrical optical devices
• CPC Class Codes: G02B 2027/0154 with movable elements
• CPC Class Codes: G02B 2027/0156 with optionally usable elements
• CPC Class Codes: G02B 2027/0158 with adjustable nose pad
• CPC Class Codes: G02B 2027/0159 with mechanical means other than scaning means for positioning the whole image
• CPC Class Codes: G02B 2027/0178 Eyeglass type eyeglass details G02C
• CPC Class Codes: G02B 2027/0187 slaved to motion of at least a part of the body of the user, e.g. head, eye
• CPC Class Codes: G02B 27/017 Head mounted
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 27/0176 characterised by mechanical features
• CPC Class Codes: G02B 5/18 Diffraction gratings holographic optical elements G02B5/32, G03H; integrally combined with optical fibres G02B6/02057; for coupling light guides G02B6/34; integrally combined with optical integrated light guides G02B6/12; grating systems G02B27/44
• CPC Class Codes: G02B 5/30 Polarising elements light-modulating devices with active elements G02F1/00
• CPC Class Codes: G02B 7/12 Adjusting pupillary distance of binocular pairs

Abstract

A camera display system displays information via a matrix display element mounted within a housing that is positioned relative to at least eye of a user. The display is connected to a video or image sensor such that the user can view information or images shown on the display. The display can be mounted to a housing so that the user can move the display in and out of the user'"'"'s field of view.

Claims

1. A camera display device comprising:

a housing;

an electronic imaging camera attached to the housing;

an active matrix liquid crystal display attached to the housing, the display having an active matrix circuit including an array of pixel circuits and an array of pixel electrodes;

a light source attached to the housing that illuminates the display with a plurality of distinct colors;

an image processing circuit mounted within the housing and connected to the electronic imaging camera and the display; and

a lens that adjusts the dimensions of an image displayed on the display for viewing by a user such that the active matrix liquid crystal display and the lens are located on a single optical axis extending along a line of sight of the user.

2. The device of claim 1 further comprising a display control panel on the housing.

3. The device of claim 1 further comprising a battery carried by the housing that provides power to the display, the light source, the camera and the processing circuit.

4. The device of claim 1 wherein the active matrix liquid crystal display and the lens are positioned within a display module attached to the housing.

5. The device of claim 4 wherein the display module rotates relative to the housing.

6. The device of claim 1 wherein the active matrix liquid crystal display comprises a video display.

7. The device of claim 1 wherein the display has an array of at least 640×

480 pixel electrodes.

8. The device of claim 1 further comprising a cholesteric liquid crystal element along an optical path between the display and the lens.

9. The device of claim 1 further comprising a video processing circuit within the housing.

10. The device of claim 1 further comprising a port for receiving a memory card.

11. The device of claim 1 wherein the light source is a backlight for the active matrix display.

12. The device of claim 1 wherein the light source comprises red, green and blue light emitting elements.

13. The device of claim 1 wherein the array of transistors is formed with a silicon-on-insulator (SOI) structure.

14. The device of claim 1 wherein the display comprises a reflector around the light source.

15. The device of claim 1 wherein the display has a diagonal length of 0.7 inches or less.

16. The device of claim 1 further comprising a flexible ribbon cable connecting the processing circuit and the display.

17. The device of claim 1 wherein the light source comprises a backlight that is optically coupled to the display such that the backlight, the active matrix display, and the lens are on a single optical axis.

18. A camera device comprising:

a housing having an electronic image sensor;

a matrix liquid crystal display, the display having a matrix circuit including an array of transistor circuits and an array of electrodes such that the matrix circuit is bonded to an optically transmissive substrate with an adhesive layer; and

a control circuit connected to the sensor and the display;

a lens that adjusts the dimensions of an image displayed on the display for viewing by a user such that the matrix liquid crystal display and the lens are located on a single optical axis.

19. The device of claim 18 further comprising a display control panel on the housing.

20. The device of claim 18 further comprising a battery within the housing for powering the sensor, the display and the circuit.

21. The device of claim 18 wherein the matrix liquid crystal display and the lens are positioned within a display module attached to the housing.

22. The device of claim 18 wherein the matrix liquid crystal display comprises an active matrix video display.

23. The device of claim 18 wherein the display has an array of at least 640×

480 pixel electrodes.

24. The device of claim 18 further comprising a cholesteric liquid crystal element along an optical path between the display and the lens.

25. The device of claim 18 further comprising a video processing circuit within the housing.

26. The device of claim 18 further comprising a port for receiving a memory card.

27. The device of claim 18 further comprising a backlight for the active matrix display.

28. The device of claim 27 wherein the backlight comprises red, green and blue light sources.

29. The device of claim 18 wherein the array of transistors is formed with a silicon-on-insulator (SOI) structure.

30. The device of claim 27 wherein the display comprises a reflector around the backlight.

31. The device of claim 18 wherein the display has a diagonal length of 0.7 inches or less.

32. The device of claim 18 further comprising a backlight for the active matrix display and wherein the active matrix display has an array of at least 640×

480 pixel electrodes and a diagonal length of 0.7 inches or less, and wherein the backlight, the active matrix display, and the lens are on a single optical axis.

33. A method of viewing an image comprising:

providing a camera housing enclosing an image sensor;

providing an active matrix liquid crystal display, the display having an active matrix circuit including an array of transistor circuits and an array of at least 300,000 pixel electrodes, and a lens such that the active matrix liquid crystal display and the lens are located on a single optical axis;

operating a display control panel on the camera housing to display an image, the control panel being connected to a control circuit and the sensor; and

viewing an image displayed on the display through a lens.

34. The method of claim 33 further comprising providing the active matrix liquid crystal display and lens are positioned within a display module attached to the housing.

35. The method of claim 34 further comprising rotating the display module relative to the housing.

36. The method of claim 33 further comprising displaying a video display.

37. The method of claim 33 further comprising providing a display with an array of at least 640×

480 pixel electrodes.

38. The method of claim 33 further comprising providing a video processing circuit within the housing.

39. The method of claim 33 further comprising providing a port in the housing for receiving a memory card.

40. The method of claim 33 further comprising providing a backlight for the active matrix display.