DISPLAY APPARATUS
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Accused Products
Abstract
A display apparatus includes: (i) a glasses-type frame that is mounted on the head of an observer; and (ii) an image display device that is attached to the frame, wherein the image display device includes (A) an image forming device, and (B) an optical device on which light emitted from the image forming device is incident, in which the light is guided, and from which the light is emitted, a light control device that adjusts an amount of external light incident from the outside is provided in a region of the optical device from which light is emitted, and the light control device includes two opposite transparent substrates, electrodes that are provided on the substrates, and an electrophoretic dispersion liquid that is sealed between the two substrates.
37 Citations
37 Claims
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1-20. -20. (canceled)
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21. A display apparatus comprising:
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(i) a glasses-type frame that is mounted on the head of an observer; and (ii) an image display device that is attached to the frame, wherein the image display device includes (A) an image forming device, and (B) an optical device on which light emitted from the image forming device is incident, in which the light is guided, and from which the light is emitted, a light control device that adjusts an amount of external light incident from the outside is provided in a region of the optical device from which light is emitted, and the light control device includes two opposite transparent substrates, electrodes that are provided on the substrates, and an electrophoretic dispersion liquid that is sealed between the two substrates, wherein the optical device includes (a) a light guide plate in which incident light propagates while being totally reflected and from which the light is emitted; (b) a first deflection unit that deflects light incident on the light guide plate so as to be totally reflected in the light guide plate; and (c) a second deflection unit that deflects the light, which propagates in the light guide plate while being totally reflected, a plurality of times so as to be emitted from the light guide plate, wherein the second deflection unit is covered with a first one of the two substrates forming the light control device, and wherein there is a gap between the light guide plate and the first one of the substrates. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A display apparatus comprising:
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(i) a glasses-type frame that is mounted on the head of an observer; (ii) an image display device that is attached to the frame; and an illuminance sensor that measures the illuminance of an environment in which the display apparatus is located, wherein the image display device includes (A) an image forming device, and (B) an optical device on which light emitted from the image forming device is incident, in which the light is guided, and from which the light is emitted, a light control device that adjusts the amount of external light incident from the outside is provided in a region of the optical device from which light is emitted, and the transmittance of the light control device is controlled on the basis of the measurement result of the illuminance sensor, wherein the optical device includes (a) a light guide plate in which incident light propagates while being totally reflected and from which the light is emitted; (b) a first deflection unit that deflects light incident on the light guide plate so as to be totally reflected in the light guide plate; and (c) a second deflection unit that deflects the light, which propagates in the light guide plate while being totally reflected, a plurality of times so as to be emitted from the light guide plate, wherein the second deflection unit is covered with a first one of the two substrates forming the light control device, and wherein there is a gap between the light guide plate and the first one of the substrates.
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35. A display apparatus comprising:
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(i) a glasses-type frame that is mounted on the head of an observer; (ii) an image display device that is attached to the frame; and an illuminance sensor that measures the illuminance of an environment in which the display apparatus is located, wherein the image display device includes (A) an image forming device, and (B) an optical device on which light emitted from the image forming device is incident, in which the light is guided, and from which the light is emitted, a light control device that adjusts the amount of external light incident from the outside is provided in a region of the optical device from which light is emitted, and the brightness of an image formed by the image forming device is controlled on the basis of the measurement result of the illuminance sensor, wherein the optical device includes (a) a light guide plate in which incident light propagates while being totally reflected and from which the light is emitted; (b) a first deflection unit that deflects light incident on the light guide plate so as to be totally reflected in the light guide plate; and (c) a second deflection unit that deflects the light, which propagates in the light guide plate while being totally reflected, a plurality of times so as to be emitted from the light guide plate, wherein the second deflection unit is covered with a first one of the two substrates forming the light control device, and wherein there is a gap between the light guide plate and the first one of the substrates.
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36. A display apparatus comprising:
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(i) a glasses-type frame that is mounted on the head of an observer; (ii) an image display device that is attached to the frame; and an illuminance sensor, wherein the image display device includes (A) an image forming device, and (B) an optical device on which light emitted from the image forming device is incident, in which the light is guided, and from which the light is emitted, a light control device that adjusts the amount of external light incident from the outside is provided in a region of the optical device from which light is emitted, the illuminance sensor measures illuminance on the basis of light which passes through the light control device from an external environment, and the transmittance of the light control device is controlled on the basis of the measurement result of the illuminance sensor, wherein the optical device includes (a) a light guide plate in which incident light propagates while being totally reflected and from which the light is emitted; (b) a first deflection unit that deflects light incident on the light guide plate so as to be totally reflected in the light guide plate; and (c) a second deflection unit that deflects the light, which propagates in the light guide plate while being totally reflected, a plurality of times so as to be emitted from the light guide plate, wherein the second deflection unit is covered with a first one of the two substrates forming the light control device, and wherein there is a gap between the light guide plate and the first one of the substrates.
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37. A display apparatus comprising:
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(i) a glasses-type frame that is mounted on the head of an observer; (ii) an image display device that is attached to the frame; and an illuminance sensor, wherein the image display device includes (A) an image forming device, and (B) an optical device on which light emitted from the image forming device is incident, in which the light is guided, and from which the light is emitted, a light control device that adjusts the amount of external light incident from the outside is provided in a region of the optical device from which light is emitted, the illuminance sensor measures illuminance on the basis of light which passes through the light control device from an external environment, and the brightness of an image formed by the image forming device is controlled on the basis of the measurement result of the illuminance sensor, wherein the optical device includes (a) a light guide plate in which incident light propagates while being totally reflected and from which the light is emitted; (b) a first deflection unit that deflects light incident on the light guide plate so as to be totally reflected in the light guide plate; and (c) a second deflection unit that deflects the light, which propagates in the light guide plate while being totally reflected, a plurality of times so as to be emitted from the light guide plate, wherein the second deflection unit is covered with a first one of the two substrates forming the light control device, and wherein there is a gap between the light guide plate and the first one of the substrates.
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Specification