Head-mounted display device and control method for the head-mounted display device
First Claim
1. A head-mounted display device comprising:
- an image display unit including an image-light generating unit that generates image light representing an image and emits the image light and a light guide unit that guides the emitted image light to an eye of a user, the image display unit causing the user to visually recognize a virtual image and an external image that is external to the head-mounted display device;
a control unit that includes an operation surface, is connected to the image display unit and controls image display by the image display unit, whereinresponsive to an indication that the user has shifted attention from the virtual image, the control unit adjusts luminance of the image-light generating unit or adjusts the image light generated by the image-light generating unit to reduce visibility of the virtual image while maintaining visibility of the external image;
a head-side light emitting unit that is arranged in the image display unit and emits invisible light;
a control-unit-side light emitting unit that is arranged in the operation surface and emits invisible light; and
a contact detecting unit that is arranged in the control unit and for detecting contact with the control unit, whereinwhen the contact with the control unit is detected, the control unit causes the head-side light emitting unit to emit the invisible light and causes the control-unit-side light emitting unit to emit the invisible light.
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Abstract
A head-mounted display device includes: an image display unit including an image-light generating unit that generates image light representing an image and emits the image light and a light guide unit that guides the emitted image light to the eye of a user, the image display unit being for causing the user to visually recognize a virtual image; and a control unit that includes an operation surface, is connected to the image display unit, and controls image display by the image display unit. When it is assumed that the user shifts the user'"'"'s attention from the virtual image, the control unit adjusts the luminance of the image-light generating unit or adjusts the image light generated by the image-light generating unit to reduce the visibility of the virtual image.
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Citations
19 Claims
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1. A head-mounted display device comprising:
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an image display unit including an image-light generating unit that generates image light representing an image and emits the image light and a light guide unit that guides the emitted image light to an eye of a user, the image display unit causing the user to visually recognize a virtual image and an external image that is external to the head-mounted display device; a control unit that includes an operation surface, is connected to the image display unit and controls image display by the image display unit, wherein responsive to an indication that the user has shifted attention from the virtual image, the control unit adjusts luminance of the image-light generating unit or adjusts the image light generated by the image-light generating unit to reduce visibility of the virtual image while maintaining visibility of the external image; a head-side light emitting unit that is arranged in the image display unit and emits invisible light; a control-unit-side light emitting unit that is arranged in the operation surface and emits invisible light; and a contact detecting unit that is arranged in the control unit and for detecting contact with the control unit, wherein when the contact with the control unit is detected, the control unit causes the head-side light emitting unit to emit the invisible light and causes the control-unit-side light emitting unit to emit the invisible light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A control method for a head-mounted display device including a control unit, the control unit including an operation surface, and the head-mounted display device further including an image display unit, the image display unit including an image-light generating unit, the control method comprising:
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(a) causing, using the image-light generating unit that generates image light representing an image and emits the image light and a light guide unit that guides the emitted image light to an eye of a user, the user to visually recognize a virtual image and an external image that is external to the head-mounted display device; (b) controlling image display in (a); (c) determining whether the user faces the operation surface in order for (b); and (d) adjusting, responsive to an indication that the user faces the operation surface in order for (b), luminance of the image-light generating unit or adjusting the image light generated by the image-light generating unit to reduce visibility of the virtual image while maintaining visibility of the external image; (e) detecting contact with the control unit; and (f) when the contact with the control unit is detected, causing a head-side light emitting unit to emit invisible light, the head-side light emitting unit being arranged in the image display unit, and causing a control-unit-side light emitting unit to emit invisible light, the control-unit-side light emitting unit being arranged in the operation surface.
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19. A control method for a head-mounted display device including a control unit, the control unit including an operation surface, and the head-mounted display device further including an image display unit, the image display unit including an image-light generating unit, the control method comprising:
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(a) causing, using an image-light generating unit that generates image light representing an image and emits the image light and a light guide unit that guides the emitted image light to an eye of a user, the user to visually recognize a virtual image and an external image that is external to the head-mounted display device; (b) controlling image display in (a); (c) acquiring change information indicating a change in a direction of the head-mounted display device and detecting, using the change information, movement of a head exceeding a fixed amount of the user wearing the head-mounted display device; (d) adjusting, when the movement of the head exceeding the fixed amount is detected, luminance of the image-light generating unit or adjusting the image light generated by the image-light generating unit to reduce visibility of the virtual image while maintaining visibility of the external image; (e) detecting contact with the control unit; and (f) when the contact with the control unit is detected, causing a head-side light emitting unit to emit invisible light, the head-side light emitting unit being arranged in the image display unit, and causing a control-unit-side light emitting unit to emit invisible light, the control-unit-side light emitting unit being arranged in the operation surface.
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Specification