Goggle type display system

• US 6,483,484 B1
• Filed: 12/16/1999
• Issued: 11/19/2002
• Est. Priority Date: 12/18/1998
• Status: Expired due to Term

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Hayashi, Keisuke, Koyama, Jun, Yamazaki, Shunpei
• Primary Examiner(s): Shalwala, Bipin
• Assistant Examiner(s): PIZIALI, JEFFREY J
• Application Number:
  US09/465,493
• Time in Patent Office: 1,069 Days
• Field of Search: 345/7, 345/8, 345/82, 345/83, 345/87, 345/88, 345/102, 348/383, 434/307.R
• US Class Current: 345/8
• CPC Class Codes: A61B 5/021 Measuring pressure in heart or blood vessels A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• CPC Class Codes: A61B 5/16 Devices for psychotechnics using teaching or educational appliances G09B1/00 - G09B7/00; Testing reaction times ; Devices for evaluating the psychological state
• CPC Class Codes: A61B 5/163 by tracking eye movement, gaze, or pupil change
• CPC Class Codes: A61B 5/486 Bio-feedback A61B5/375 takes precedence
• CPC Class Codes: G02B 2027/0178 Eyeglass type eyeglass details G02C
• CPC Class Codes: G02B 27/017 Head mounted
• CPC Class Codes: G02B 27/0176 characterised by mechanical features
• CPC Class Codes: G09G 2300/08 Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
• CPC Class Codes: G09G 3/30 using electroluminescent panels

Abstract

To provide a goggle type display device system that can prevent harm to user'"'"'s health. If anomaly is recognized in mind and body of a user, first video signals provided from an external device stop being displayed on LCD panels and, instead, outside scenery taken by CCD image capture elements is displayed. The user may be alarmed by this about anomaly of his or her body and, further, relaxed by looking at the outside scenery presented.

Claims

1. A goggle type display system comprising:

two display devices;

first video signals being inputted from an external video signal supplying device to display a first image on each of the two display devices;

two image capture elements for converting outside images into second video signals to display a second image on each of the two display devices;

a sensor for converting vital information of a user into a vital information signal; and

a video signal control circuit for providing the two display devices with video signals,

wherein the video signal control circuit provides the two display devices with the first video signals or the second video signals so that either the first image or the second image is determined to be displayed on each of the two display devices on the basis of an index being obtained by numerically processing the vital information signal.

5. A system according to claim 1, wherein each of the image capture elements is a CCD image capture element or an image sensor.

7. A system according claim 1, wherein the vital information of the user is at least one selected from the group consisting of pulse wave, blood pressure, body temperature and dilated degree of the pupils of the eyes.

8. A system according to claim 1, wherein the sensor is at least one selected from the group consisting of a pulse wave sensor, a blood pressure sensor and a body temperature sensor.

9. A system according to claim 8, wherein the sensor is arranged in a headphone.

10. A system according to claim 5, wherein the image sensor is formed integrally with each of the display devices.

11. A system according to claim 1, wherein each of the display devices is a reflection type liquid crystal display device.

12. A system according to claim 1, wherein each of the display devices has a back light using red LEDs, green LEDs and blue LEDs.

13. A system according to claim 12, wherein each of the display devices is operated by a field sequential system.

41. A system according to claim 1, wherein each of the display devices is a liquid crystal display device.

42. A system according to claim 1, wherein each of the display devices is an EL display device.

2. A goggle type display system comprising:

two display devices;

first video signals being inputted from an external video signal supplying device to display a first image on each of the two display devices;

two first image capture elements for converting outside images into second video signals to display a second image on each of the two display devices;

two second image capture elements for converting images of user'"'"'s eyes into third video signals;

a sensor for converting vital information of the user into a vital information signal; and

a video signal control circuit for providing the two display devices with video signals,

wherein the video signal control circuit provides the two display devices with the first video signals or the second video signals so that either the first image or the second image is determined to be displayed on each of the two display devices on the basis of an index being obtained by numerically processing the third video signals and the vital information signal.

6. A system according to claim 2, wherein each of the second image capture elements is a CCD image capture element or an image sensor.

14. A system according to claim 2, wherein each of the first image capture elements is a CCD image capture element or an image sensor.

15. A system according claim 2, wherein the vital information of the user is at least one selected from the group consisting of pulse wave, blood pressure, body temperature and dilated degree of the pupils of the eyes.

16. A system according to claim 2, wherein the sensor is at least one selected from the group consisting of a pulse wave sensor, a blood pressure sensor and a body temperature sensor.

17. A system according to claim 16, wherein the sensor is arranged in a headphone.

18. A system according to claim 14, wherein the image sensor is formed integrally with each of the display devices.

19. A system according to claim 2, wherein each of the display devices is a reflection type liquid crystal display device.

20. A system according to claim 2, wherein each of the display devices has a back light using red LEDs, green LEDs and blue LEDs.

21. A system according to claim 20, wherein each of the display devices is operated by a field sequential system.

40. A system according to claim 6, wherein the image sensor is formed integrally with each of the display devices.

43. A system according to claim 2, wherein each of the display devices is a liquid crystal display device.

44. A system according to claim 2, wherein each of the display devices is an EL display device.

3. A goggle type display system comprising:

two display devices;

first video signals being inputted from an external video signal supplying device to display a first image on each of the two display devices;

two image capture elements for converting outside images into second video signals to display a second image on each of the two display devices;

a sensor for converting vital information of a user into a vital information signal; and

a video signal control circuit for providing the two display devices with video signals,

wherein the video signal control circuit calculates a degree of fatigue of the user on the basis of a chaos attractor index being obtained by numerically processing the vital information signal,

wherein the video signal control circuit provides the two display devices with the first video signals to display the first image on each of the two display devices when the degree of fatigue is equal to or less than a predetermined level, and

wherein the video signal control circuit provides the two display devices with the second video signals to display the second image on each of the two display devices when the degree of fatigue exceeds the predetermined level.

22. A system according to claim 3, wherein each of the image capture elements is a CCD image capture element or an image sensor.

23. A system according claim 3, wherein the vital information of the user is at least one selected from the group consisting of pulse wave, blood pressure, body temperature and dilated degree of the pupils of the eyes.

24. A system according to claim 3, wherein the sensor is at least one selected from the group consisting of a pulse wave sensor, a blood pressure sensor and a body temperature sensor.

25. A system according to claim 24, wherein the sensor is arranged in a headphone.

26. A system according to claim 22, wherein the image sensor is formed integrally with each of the display devices.

27. A system according to claim 3, wherein each of the display devices is a reflection type liquid crystal display device.

28. A system according to claim 3, wherein each of the display devices has a back light using red LEDs, green LEDs and blue LEDs.

29. A system according to claim 28, wherein each of the display devices is operated by a field sequential system.

45. A system according to claim 3, wherein each of the display devices is a liquid crystal display device.

46. A system according to claim 3, wherein each of the display devices is an EL display device.

4. A goggle type display system comprising:

two display devices;

first video signals being inputted from an external video signal supplying device to display a first image on each of the two display devices;

two first image capture elements for converting outside images into second video signals to display a second image on each of the two display devices;

two second image capture elements for converting images of user'"'"'s eyes into third video signals;

a sensor for converting vital information of a user into a vital information signal; and

a video signal control circuit for providing said two display devices with video signals,

wherein the video signal control circuit calculates a degree of fatigue of the user on the basis of a chaos attractor index being obtained by numerically processing the third video signals and the vital information signal,

wherein the video signal control circuit provides the two display devices with the first video signals to display the first image on each of the two display devices when the degree of fatigue is equal to or less than a predetermined level, and

wherein the video signal control circuit provides the two display devices with the second video signals to display the second image on each of the two display devices when the degree of fatigue exceeds the predetermined level.

30. A system according to claim 4, wherein each of the first image capture elements is a CCD image capture element or an image sensor.

31. A system according to claim 4, wherein each of the second image capture elements is a CCD image capture element or an image sensor.

32. A system according claim 4, wherein the vital information of the user is at least one selected from the group consisting of pulse wave, blood pressure, body temperature and dilated degree of the pupils of the eyes.

33. A system according to claim 4, wherein the sensor is at least one selected from the group consisting of a pulse wave sensor, a blood pressure sensor and a body temperature sensor.

34. A system according to claim 33, wherein the sensor is arranged in a headphone.

35. A system according to claim 30, wherein the image sensor is formed integrally with each of the display devices.

36. A system according to claim 31, wherein the image sensor is formed integrally with each of the display devices.

37. A system according to claim 4, wherein each of the display devices is a reflection type liquid crystal display device.

38. A system according to claim 4, wherein each of the display devices has a back light using red LEDs, green LEDs and blue LEDs.

39. A system according to claim 38, wherein each of the display devices is operated by a field sequential system.

47. A system according to claim 4, wherein each of the display devices is a liquid crystal display device.

48. A system according to claim 4, wherein each of the display devices is an EL display device.