JP2013114124A - Image display device, power supply control method in image display device, and power supply control program in image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image display device capable of improving the convenience of a user according to a use state of a device, a power supply control method in the image display device, and a power supply control program in the image display device.SOLUTION: An image display device includes: display portions (a left-eye display portion 110A and a right-eye display portion 110B) for outputting image light to image take-out areas (an image take-out area of a left-eye reflecting portion 21A, and an image take-out area of a right-eye reflecting portion 21B); sensors (a left-eye side sensor 130A and a right-eye side sensor 130B) for detecting a use state of a display device 100 equipped with the display portions; and a control portion 230 for controlling a power supply state on the basis of the use state of the display device which is detected by the sensors.

Description

  The present invention relates to an image display device, a power control method for the image display device, and a power control program for the image display device.

  Patent Document 1 discloses a display unit that displays a video (image) in front of eyes, a mounting unit that mounts the display unit on a head or a face, and an audio output unit that outputs audio in accordance with the video of the display unit. And a head-mounted display device (for example, HMD: head mounted display) that controls the on / off state of the display means and the sound output means by detecting the mounting state of the sound output means to the ear. (See Patent Document 1).

JP 2005-72867 A

  However, in the head-mounted display device disclosed in Patent Document 1, for example, when the user temporarily stops viewing the video and performs other work, the display means is attached to and removed from the earphone. Further, on-off control of the audio output means is required, and further development has been required in terms of enhancing the convenience of the user according to the use state of the apparatus.

  The present invention has been made in view of the above points, and can provide an image display device, a power control method for the image display device, and power control for the image display device that can improve user convenience according to the usage state of the device. The purpose is to provide a program.

  The present invention has been made to solve the above problems, and includes a display unit that outputs image light to an image extraction area, a sensor that detects a usage state of a display device including the display unit, and the sensor. And a control unit that controls a power supply state based on a use state of the display device detected by the image display device.

  With this configuration, the control unit controls the power supply state based on the use state of the display device detected by the sensor. Thereby, the image display apparatus can improve the convenience of the user according to the use state of the apparatus.

  Further, according to the present invention, the display device is a glasses-type display device, and the sensor includes a first usage state that is determined to be used by the user and a display that is displayed by the user. Detecting a predetermined second usage state in which the device is considered not to be used, and the control unit detects the first usage state by the sensor based on the usage state of the display device detected by the sensor; Is detected, the power is switched from the off state to the on state, and when the second use state is detected by the sensor, the power is switched from the on state to a predetermined sleep state or off. It is an image display apparatus characterized by controlling to be in a state.

  With this configuration, the control unit controls the power supply from the off state to the on state when a predetermined first use state in which the display device is deemed to be used by the user is detected. When a predetermined second usage state in which the display device is considered not to be used is detected, the control is performed so that the power source is changed from the on state to the predetermined sleep state or off state. Thereby, the image display apparatus can improve the convenience of the user according to the use state of the apparatus.

  Further, according to the present invention, the display device includes a left-eye component and a right-eye component, and the sensor is independently operated by the user on the left-eye side and the right-eye side. The left eye side sensor and the right eye side sensor for detecting the usage state of the display device, and the control unit uses the left eye side display device usage state detected by the left eye side sensor and the An image display device that controls a power supply state based on a combination with a use state of the display device on the right eye side detected by a sensor on the right eye side.

  With this configuration, the control unit is based on a combination of the use state of the left-eye display device detected by the left-eye sensor and the use state of the right-eye display device detected by the right-eye sensor. To control the power supply state. Thereby, the image display apparatus can improve the convenience of the user according to the use state of the apparatus.

  According to the present invention, the display device includes a left-eye component that has two stages that are considered to be used by the user, and a right-eye structure that has two stages that are considered to be used by the user. The left eye side and the right eye side are each independently configured of a left eye side sensor and a right eye side sensor for detecting a use state of the display device by a user, The control unit is based on a combination of a use state of the display device on the left eye side detected by the left eye side sensor and a use state of the display device on the right eye side detected by the right eye side sensor. The image display device is characterized by controlling a power supply state.

  With this configuration, when there are two stages in the display device that are considered to be used by the user, the control unit detects the use state of the left-eye display device detected by the left-eye sensor and the right-eye display state. The power supply state is controlled based on the combination with the use state of the right-eye display device detected by the sensor. Thereby, the image display apparatus can improve the convenience of the user according to the use state of the apparatus.

  According to the present invention, the display device includes a left-eye component that has two stages that are considered to be used by the user, and a right-eye structure that has two stages that are considered to be used by the user. The left eye side and the right eye side are each independently configured of a left eye side sensor and a right eye side sensor for detecting a use state of the display device by a user, The control unit controls a power supply state based on a use state of the display device detected by the left eye sensor or the right eye sensor independently for the left eye side and the right eye side, respectively. This is an image display device characterized by that.

  With this configuration, when there are two stages in the display device that are considered to be used by the user, the control unit can independently perform the left eye side sensor or the right eye side sensor on the left eye side and the right eye side. Based on the use state of the display device detected by the sensor, the power supply state is controlled. Thereby, the image display apparatus can improve the convenience of the user according to the use state of the apparatus.

  In addition, the present invention is a transmissive image display device, wherein the display unit transmits light from the outside to the image extraction area.

  With this configuration, the display unit transmits light from the outside to the image extraction area. Thereby, in the transmissive image display apparatus, the convenience for the user can be improved according to the use state of the apparatus.

  In the present invention, the display device is mounted on a user's head, and the display unit is fixed to the display element, a projection lens that projects image light from the display element, and the projection lens. A light guide unit that guides image light from the projection lens to the image extraction area, and simultaneously observes an image of the image light from the display element and an image of light from the outside through the light guide unit. It is an image display device characterized by being capable.

  With this configuration, the control unit controls the power supply state based on the use state of the display device detected by the sensor. Thereby, the image display apparatus can improve the convenience of the user according to the use state of the apparatus.

  According to another aspect of the present invention, the sensor detects a use state of a display device provided with a display unit that outputs image light to an image extraction area, and the control unit detects the use state of the display device detected by the sensor. And a step of controlling a power supply state based on the power supply control method in the image display apparatus.

  With this configuration, the control unit controls the power supply state based on the use state of the display device detected by the sensor. Thereby, the image display apparatus can improve the convenience of the user according to the use state of the apparatus.

  In the present invention, the display unit outputs image light to the image extraction area, the sensor detects the use state of the display device provided with the display unit, and the control unit detects the sensor using the sensor. And a power supply control program for an image display device for causing a computer to execute a procedure for controlling a power supply state based on a use state of the display device.

  With this configuration, the control unit controls the power supply state based on the use state of the display device detected by the sensor. Thereby, the image display apparatus can improve the convenience of the user according to the use state of the apparatus.

  As described above, according to the present invention, the image display device controls the power supply state based on the use state of the display device. Thereby, the image display apparatus can improve the convenience of the user according to the use state of the apparatus.

1 is an external view of a transmissive display device that is an image display device according to an embodiment of the present invention. It is a top view which shows the structural example of the display part for left eyes of the display apparatus which concerns on one Embodiment of this invention. It is a block diagram which shows the structural example of the transmissive display apparatus which concerns on one Embodiment of this invention. It is a flowchart figure which shows an example of the procedure of the process at the time of switch-on performed in the transmissive display apparatus which concerns on 1st Embodiment of this invention. It is a flowchart figure which shows an example of the procedure of the process at the time of switch-off performed in the transmissive display apparatus which concerns on 1st Embodiment of this invention. 1 is an external view of a transmissive display device that is an image display device according to an embodiment of the present invention in a state where left and right cranes are closed. FIG. It is an external view of the transmissive display apparatus which is an image display apparatus which concerns on other one Embodiment of this invention. It is an external view of the transmissive display apparatus which is an image display apparatus which concerns on other one Embodiment of this invention. It is an external view of the transmissive display apparatus which is an image display apparatus which concerns on other one Embodiment of this invention. It is an external view of the transmissive display apparatus which is an image display apparatus which concerns on other one Embodiment of this invention.

[First Embodiment]
A first embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an external view of a transmissive display device (in this embodiment, a transmissive head mounted display) that is an image display device according to an embodiment of the present invention.
The transmissive (see-through) display device according to the present embodiment includes a display device 100 having a shape like glasses, and a control device (controller) having a size that can be held by a user's hand. 200.

Further, the display device 100 and the control device 200 are connected so as to be communicable by wire or wireless.
In the present embodiment, the left eye (left eye) side and the right eye (right eye) side of the display device 100 and the control device 200 are communicably connected via a wired cable. Each of the left eye side and the right eye side of the display device 100 and the control device 200 communicate image signals (image signals) and control signals (control signals) via this cable.

The display device 100 includes a left-eye display unit (left-eye display unit) 110A, a right-eye display unit (right-eye display unit) 110B, and a left-eye sensor (left-eye sensor) 130A. And a right eye side sensor (right eye side sensor) 130B.
The control device 200 includes an operation unit 210 and an operation button unit 250.

The left-eye display unit 110A includes a left-eye image forming unit (left-eye image forming unit) 10A, a left-eye light guide unit (the left-eye light guide unit 20A illustrated in FIG. 2), and a left-eye display unit 110A. An eye reflecting portion (left eye reflecting portion) 21A.
The right-eye display unit 110B includes a right-eye image forming unit (right-eye image forming unit) 10B and a right-eye light guiding unit (the same right as the left-eye light guiding unit 20A illustrated in FIG. 2). An eye light guide 20B) and a right eye reflector (right eye reflector) 21B.

FIG. 2 is a plan view illustrating a configuration example of the left-eye display unit 110A of the display device 100 according to an embodiment of the present invention. FIG. 2 shows the left eye 310 </ b> A of a user (person) wearing the display device 100.
The left-eye display unit 110A and the right-eye display unit 110B have a bilaterally symmetric configuration, and only the configuration example of the left-eye display unit 110A will be described here.

The left-eye image forming unit 10A includes a left-eye image generation unit (left-eye image generation unit) 11A and a left-eye projection optical system (left-eye projection optical system) 12A.
The left-eye image generation unit 11A includes a left-eye backlight light source (left-eye backlight light source) 410A and a left-eye light modulation element (left-eye light modulation element) 411A.

In the present embodiment, the left-eye backlight light source 410A is composed of a set of light sources for each emission color such as red, green, and blue. As each light source, for example, a light emitting diode (LED) can be used.
As the left-eye light modulation element 411A, for example, a liquid crystal display device which is a display element can be used.

With reference to FIG. 1 and FIG. 2, the outline of the transmissive display device according to the present embodiment will be described.
An image signal for the left eye is input from the control device 200 to the image generation unit 11A for the left eye.
In the left-eye image generation unit 11A, each light source of the left-eye backlight light source 410A emits red light, green light, and blue light. The left-eye image generation unit 11A diffuses red light, green light, and blue light emitted from each light source of the left-eye backlight light source 410A and projects the diffused light onto the left-eye light modulation element 411A. The left-eye light modulation element 411A spatially modulates the projected red light, green light, and blue light in accordance with the image signal input from the control device 200 to the left-eye image generation unit 11A, thereby generating the image. The image light corresponding to the signal is emitted.
The left-eye projection optical system 12A includes, for example, a group of projection lenses that project input image light, and projects image light emitted from the left-eye light modulation element 411A of the left-eye image generation unit 11A. Thus, the luminous flux is in a parallel state.

  The left-eye light guide unit 20A converts image light that has been converted into a parallel light beam by the left-eye projection optical system 12A into a predetermined surface (semi-transmissive reflection surface) of a triangular prism included in the left-eye reflection unit 21A. ). Here, a reflective coating such as a mirror layer is applied on the side facing the user's left eye 310A when worn, out of the front and back of the transflective surface formed on the left eye reflecting portion 21A. The image light projected on the transflective surface formed on the left-eye reflecting portion 21A is totally reflected toward the user's left eye 310A by this reflectively coated surface. Accordingly, image light corresponding to the projected image light is output to an area (image extraction area) at a predetermined position of the left-eye reflecting unit 21A.

In the present embodiment, the image light transmitted by the light guide plate of the left-eye light guide unit 20A is reflected by the transflective surface formed on the left-eye reflection unit 21A, and the reflected light is the user's left eye 310A. Then, a virtual image is formed on the retina of the left eye 310A.
In the present embodiment, the left-eye light guide 20A is fixed to the left-eye projection optical system 12A and guides the image light from the left-eye projection optical system 12A to a predetermined position.

  Further, at least part of the light incident on the left-eye reflecting portion 21A from the outside passes through the above-described semi-transmissive reflecting surface formed on the left-eye reflecting portion 21A and is guided to the user's left eye 310A. Thereby, the user sees the image formed by the left-eye image forming unit 10 </ b> A and the optical image from the outside world superimposed.

When the user wears the display device 100 on the head, the image is output from the image extraction area of the display device 100 (image extraction area of the left eye reflection unit 21A, image extraction area of the right eye reflection unit 21B). When an image corresponding to light appears to be displayed, the image can be recognized. Further, the user allows at least part of light from the outside world to pass through the image extraction area of the display device 100 (the image extraction area of the left-eye reflection unit 21A and the image extraction area of the right-eye reflection unit 21B). The outside world can be seen with the display device 100 mounted on the head. That is, light from the outside can pass through the image extraction area (the image extraction area of the left-eye reflection unit 21A and the image extraction area of the right-eye reflection unit 21B).
In this way, the user simultaneously views the image to be displayed by the transmissive display device and the image of the outside world through the light guide unit (the left eye light guide unit 20A and the right eye light guide unit 20B) (observation). And a virtual image can be visually recognized. Further, the user can input an operation to the operation unit 210 and the operation button unit 250 of the control device 200.

Here, the left-eye image forming unit 10A is provided on the left temple of the display device 100 so as to be positioned on the left side of the user's head when worn. The left-eye image forming unit 10A forms an image for the user's left eye, and outputs the light of the formed image toward a predetermined position (position of the image extraction area) of the left-eye reflecting unit 21A. .
The image extraction area of the left-eye reflecting portion 21A is provided in the left rim portion of the display device 100 so as to be positioned in front of the user's left eye 310A when worn.

Further, the right-eye image forming unit 10B is provided in the right temple of the display device 100 so as to be positioned on the right side of the user's head when worn. The right-eye image forming unit 10B forms an image for the user's right eye, and outputs the light of the formed image toward a predetermined position (image extraction area position) of the right-eye reflecting unit 21B. .
The image extraction area of the right-eye reflection unit 21B is provided on the right rim of the display device 100 so as to be positioned in front of the user's right eye when worn.

Hereinafter, the transmissive display device according to the present embodiment will be described in more detail.
FIG. 3 is a block diagram illustrating a configuration example of the transmissive display device according to the present embodiment.
In addition to the operation unit 210 and the operation button unit 250, the control device 200 includes a control unit 230, a storage unit 240, and a power supply unit 260.
In the control device 200, one or both of the operation unit 210 and the operation button unit 250 constitute an operation input unit 270 that receives an operation input from the user.

Each component in the transmissive display device according to the present embodiment will be described.
First, the display device 100 will be described.
Left-eye image forming unit 10A provided in the left-eye display unit 110A, left-eye light guiding unit 20A, left-eye reflecting unit 21A, and left-eye image generating unit 10A provided in the left-eye image forming unit 10A 11A, the left-eye projection optical system 12A, the left-eye backlight light source 410A and the left-eye light modulation element 411A included in the left-eye image generation unit 11A, as described with reference to FIGS. The operation is performed.

  The right-eye image provided in the right-eye image forming unit 10B, the right-eye light guide 20B, the right-eye reflecting unit 21B, and the right-eye image forming unit 10B provided in the right-eye display unit 110B. The generation unit 11B, the right-eye projection optical system 12B, the right-eye backlight light source 410B and the right-eye light modulation element 411B included in the right-eye image generation unit 11B are shown in FIGS. 1 and 2 for the left eye. It has the same configuration as described with reference to perform the operation.

  In the present embodiment, the display device 100 has a shape like glasses. The display device 100 opens the left eye side temple (temple) part and the right eye side temple part to the inside closed state (folded inward) and to the outside, respectively. It has a configuration that can be changed to any of the above states.

In the present embodiment, the left eye side sensor 130A and the right eye side sensor 130B detect whether or not the user is wearing the display device 100 (or a state in which the user is going to wear it) by a predetermined method. Consists of switch-type sensors.
One or both of the left eye side sensor 130 </ b> A and the right eye side sensor 130 </ b> B transmits the detection result to the control unit 230 as a detection result regarding the usage state of the display device 100.
Here, in the present embodiment, one or both of the left eye side sensor 130A and the right eye side sensor 130B transmit the detection result to the control unit 230 only when a change in state is detected.

  In addition, as such sensors (the left eye side sensor 130A and the right eye side sensor 130B), for example, sensors that operate without power may be used, or a power source (for example, a battery) is provided. A sensor that operates with electric power may be used.

  In the present embodiment, the left eye side sensor 130A and the right eye side sensor 130B are composed of magnetic sensors that detect values according to the distance between them. The left eye side sensor 130A is provided inside the vicinity of the tip of the left eye side crane of the display device 100, and the right eye side sensor 130B is provided inside the vicinity of the tip of the right eye side temple of the display device 100. It has been. In the present embodiment, the left eye side sensor 130A and the right eye side sensor 130B are disposed at positions facing each other in a state where both the left eye side crane and the right eye side crane are opened. .

  In such a configuration, in a state where both the left eye crane and the right eye crane of the display device 100 are closed, the distance between the left eye sensor 130A and the right eye sensor 130B is short. When both the left eye crane and the right eye crane of the display device 100 are opened, the distance between the left eye sensor 130A and the right eye sensor 130B is long.

In the present embodiment, the left eye side sensor 130A and the right eye side sensor 130B are formed on the left eye side crane of the display device 100 based on the mutual attractive force (or repulsive force) according to the distance between them. It is detected whether both the right-eye crane and the right-eye crane are closed, or whether both the left-eye crane and the right-eye crane of the display device 100 are opened.
In the present embodiment, the left eye side sensor 130A and the right eye side sensor 130B are in a state where both the left eye crane and the right eye crane of the display device 100 are closed from the closed state. And when it is detected that both the left eye crane and the right eye crane of the display device 100 have changed from an open state to a closed state. One or both of the left eye side sensor 130A and the right eye side sensor 130B transmit the detection result to the control unit 230.

  In the configuration in which both the left eye side sensor 130 </ b> A and the right eye side sensor 130 </ b> B transmit the detection result to the control unit 230, for example, both of them transmit the detection result indicating the same content to the control unit 230. As another configuration example, the left eye side sensor 130A and the right eye side sensor 130B transmit the detection results of each to the control unit 230, and the control unit 230 transmits the detection results (information indicating the detection results for each). ) May be combined to obtain a single detection result.

Here, FIG. 1 shows a state where both the left eye crane and the right eye crane of the display device 100 are opened.
FIG. 6 is an external view of a transmissive display device that is an image display device according to an embodiment of the present invention in a state where the left and right cranes are closed.
FIG. 6 illustrates a state in which both the left eye crane and the right eye crane of the display device 100 are closed.

Next, the control device 200 will be described.
The operation unit 210 detects an operation input to the operation surface provided in the casing of the control device 200 and outputs the detection result to the control unit 230.
Here, the operation unit 210 detects, for example, the position on the operation surface touched by the finger of the user who performs the operation input, using absolute coordinates on the operation surface. The operation unit 210 is, for example, a track pad.

  The operation button unit 250 includes a plurality of operation buttons. When each operation button is pressed by the user, a signal indicating a process associated with the pressed operation button in advance is output to the control unit 230.

The storage unit 240 stores various types of information. Specifically, the storage unit 240 stores, for example, information on a program executed by the control unit 230 and information used in various processes.
The power supply unit 260 supplies power to each component that requires the power supply provided in the control device 200 and the display device 100.

The control unit 230 executes various processes in the control device 200. The control unit 230 is configured using, for example, a CPU (Central Processing Unit).
Specifically, for example, when the operation input detection result is input from the operation unit 210, the control unit 230 has a function of executing processing according to the detection result, and an operation button pressed in the operation button unit 250. A function of executing a process corresponding to the signal when a signal indicating a previously associated process is input; a function of writing information in the storage unit 240; a function of reading out information stored in the storage unit 240; Has a function of controlling the supply state of power to each component.

  For example, the control unit 230 receives (acquires) a detection result (a detection result related to the usage state of the display device 100) transmitted from one or both of the left eye side sensor 130A and the right eye side sensor 130B. It has a function.

The control unit 230 has a function of controlling the supply state of power from the power supply unit 260, for example.
Various methods may be used as a method of controlling the power supply state from the power supply unit 260. For example, a method of switching on and off the overall power supply state from the power supply unit 260 (this embodiment) A method of switching on and off the power of the transmissive display device according to the embodiment), a power supply state from the power supply unit 260 in a predetermined low power consumption state (the sleep state of the transmissive display device according to the present embodiment) ) And a method for shifting from that state to another state. As another example, for each component that requires a power source provided in the control device 200 and the display device 100, a method of switching on and off the power supply state from the power source 260 for each component, or A method of shifting the supply state of power from the power supply unit 260 to a predetermined low power consumption state for each component unit that requires a power source provided in the control device 200 and the display device 100, and There is a method for shifting from the state to another state.

Further, for example, the control unit 230 outputs a left-eye image signal to the left-eye image generation unit 11A for the image to be displayed to the user by the display device 100, and the right-eye image generation unit 11B It has a function of outputting an image signal for the eye.
Here, the image signal for the left eye and the image signal for the right eye that are simultaneously displayed to the user may be, for example, the same image signal or different image signals depending on the parallax of the image. It may be.

In addition, as the image displayed by the display device 100, images having various contents may be used.
Specifically, as an image to be displayed by the display device 100, for example, an image of a moving image content such as a movie or an image showing additional information for a predetermined user can be used. The image of the additional information can be displayed on an on-screen display (OSD) with respect to the content image, for example.

  In the present embodiment, the control unit 230 uses the display device 100 based on detection results (detection results regarding the use state of the display device 100) input from the sensors (the left eye side sensor 130A and the right eye side sensor 130B). Is determined (detected), and the power supply state from the power supply unit 260 is controlled based on the detection result as determined in advance.

An example of an operation performed in the transmissive display device according to the present embodiment will be described.
FIG. 4 is a flowchart showing an example of a procedure of processing when the switch is turned on, which is performed in the transmissive display device according to the first embodiment of the present invention.
In this example, it is assumed that the binocular (left eye side and right eye side) vines of the display device 100 are closed, and the transmissive display device according to the present embodiment is turned off.

  At this time, when the user uses his / her hand to put the display device 100 on his / her head, when the binocular side crane of the display device 100 is changed from the closed state to the open state, the sensor (the left eye side sensor 130A). , The right eye side sensor 130B) detects the change of the state (change of both the left eye side and right eye side of the display device 100 from the closed state to the open state). Then, the detection result is transmitted to the control unit 230 (step S1).

  Then, the control unit 230 receives the detection results transmitted from the sensors (the left eye side sensor 130A and the right eye side sensor 130B), and based on the received detection results, the usage state (in this case, the display device 100) It is determined that both the left eye crane and the right eye crane of the apparatus 100 have changed from a closed state to an open state. Then, based on the determination result, the control unit 230 starts control for switching the power supply of the transmissive display device according to the present embodiment from the off state to the on state (control of the activation sequence when the power is turned on) ( Step S2).

  By such control, the transmissive display device according to the present embodiment is switched from an off state to an on state, and the transmissive display device according to the present embodiment (in this embodiment, the display device 100 and the control device are controlled). The apparatus 200) is in a state where it is normally used (step S3).

FIG. 5 is a flowchart showing an example of a procedure of processing at the time of switch-off performed in the transmissive display device according to the first embodiment of the present invention.
In this example, the binoculars (left eye side and right eye side) vines of the display device 100 are opened, and the transmissive display device according to the present embodiment is in the on state (normal state). (Step S11).

  At this time, if the user removes the display device 100 from the head using his / her hand and changes the binocular side cranes of the display device 100 from the open state to the closed state, the sensor (the left eye side sensor 130A, the right eye side) The sensor 130B) detects the change in the state (the change in the state where both the left eye crane and the right eye crane of the display device 100 are opened to the closed state), and The detection result is transmitted to the control unit 230 (step S12).

  Then, the control unit 230 receives the detection results transmitted from the sensors (the left eye side sensor 130A and the right eye side sensor 130B), and based on the received detection results, the usage state (in this case, the display device 100) It is determined that both the left eye crane and the right eye crane of the device 100 have changed from the open state to the closed state. Then, based on the determination result, the control unit 230 performs control to switch the power of the transmissive display device according to the present embodiment from an on state to a predetermined sleep state (step S13).

By such control, the transmissive display apparatus according to the present embodiment shifts from a power-on state to a sleep state.
At this time, the control unit 230 (or any other predetermined constituent unit determined in advance) uses the timer function to count the elapsed time. Various timings may be used as the timing of the start point of the timekeeping. For example, the timing at which the transmissive display device according to the present embodiment shifts to the sleep state or an arbitrary predetermined timing close to the timing is used. Timing can be used.

  The control unit 230 is in a state in which both the left eye crane and the right eye crane of the display device 100 are closed by this timing (or in another state that is not detected by the sensor in this embodiment). It may be determined whether or not the measured time has reached a predetermined first threshold (for example, 10 minutes) or more (step S14).

  Here, in the present embodiment, only when the sensors (the left eye side sensor 130A and the right eye side sensor 130B) detect a change in the usage state of the display device 100, the detection result is transmitted to the control unit 230. For this reason, the control unit 230 receives both the left eye crane and the right eye crane of the display device 100 while receiving the detection results from the sensors (the left eye sensor 130A and the right eye sensor 130B). Is not in the open state, and both the left eye crane and the right eye crane of the display device 100 remain closed (or in this embodiment, the sensor It may be assumed that another state that is not detected by (1) may be set.

As a result of the determination in the process of step S14, the control unit 230 is in a state where both the left eye crane and the right eye crane of the display device 100 are closed (or, in the present embodiment, other sensors that are not detected by the sensor). In this case, the power of the transmissive display device according to the present embodiment is set to the sleep mode when it is determined that the time to be counted is equal to or greater than the first threshold value set in advance. Control for switching from the state to the off state (control of the end sequence when the power is turned off) is started (step S15).
By such control, the power source of the transmissive display device according to the present embodiment shifts from the sleep state to the off state (step S16).

  On the other hand, in the time measurement in the process of step S14, both the left eye side crane and the right eye side crane of the display device 100 are displayed by the user before the time to be measured reaches the predetermined first threshold value. When both are opened from the closed state, the sensors (the left eye side sensor 130A and the right eye side sensor 130B) change their states (the left eye side crane and the right eye side of the display device 100). (The change from the closed state of both the vines to the open state of both the vines) is detected, and the detection result is transmitted to the control unit 230.

  Then, the control unit 230 receives the detection results transmitted from the sensors (the left eye side sensor 130A and the right eye side sensor 130B), and based on the received detection results, the usage state (in this case, the display device 100) It is determined that both the left eye crane and the right eye crane of the apparatus 100 have changed from a closed state to an open state. Then, based on the determination result, the control unit 230 performs control to switch the power source of the transmissive display device according to the present embodiment from the sleep state to the on state (step S17).

  By such control, the power source of the transmissive display device according to the present embodiment exits from the sleep state and shifts to the on state, and the transmissive display device according to the present embodiment (the display device in the present embodiment) 100 and the control device 200) are in a state where they are normally used (step S11).

  As described above, in the transmissive display device according to the present embodiment, the control unit 230 detects the detection result (detection regarding the usage state of the display device 100) input from the sensors (the left eye side sensor 130A and the right eye side sensor 130B). The use state of the display device 100 is determined based on the result), and the power supply state from the power supply unit 260 is controlled based on the detection result as determined in advance.

Thereby, in the transmissive display device according to the present embodiment, the convenience of the user can be improved according to the usage state of the device.
Specifically, for example, an event (an event that occurs when the user considers that the display device 100 is used) by an operation that the user tries to wear the display device 100 is determined in advance. When the event is detected, control for turning on the power can be performed. In addition, an event that is assumed to be caused by an operation of removing the display device 100 when the user wears the display device 100 (an event that occurs when the user considers that the display device 100 is not used) is determined in advance. When the event is detected, the power can be controlled to be in a sleep state or an off state.

  According to the transmissive display device according to the present embodiment, by providing a sensor in the mounting portion of the display device 100, it is possible to automatically perform control such as power on / off. In the present embodiment, a spectacle-type mounting unit is used as the mounting unit of the display device 100, and sensors (left eye side sensor 130A and right eye side sensor 130B) are provided in the vine portion. The control unit 230 performs control to turn on the power when it is determined that the vines on both sides are opened, and controls the power to be turned on or off when it is determined that the vines on both sides are closed. Do.

Conventionally, when a user wears a transmissive display device and turns on the power to view an image (image), or conversely, when the user ends use and turns off the power. For example, it was necessary for the user to operate the power button (for example, long press). In addition, when turning the power on or off, there is a message that prompts the user for confirmation and allows the user to input an instruction. In this case, the user is required to turn the power on or off. Required at least two operations. For this reason, depending on the user or the user's situation, it may be inconvenient to operate the control device by hand when turning the power on or off.
Also, in a transmissive display device, it usually takes time from receiving an instruction to turn on the power to transitioning to the normal state (starting up). Conventionally, the power is turned on after the user wears the display device. When an instruction to turn on the camera is issued, the user needs to wait for a long time until the device is actually started and the video can be seen, and sometimes the user feels uncomfortable when he wants to watch the video immediately. Similarly, in a transmissive display device, it usually takes time from when an instruction to turn off the power is received to when it is turned off. Conventionally, a long time has elapsed since the user issued an instruction to turn off the power. I had to wait for a while and sometimes felt uncomfortable.

  On the other hand, in the transmissive display device according to the present embodiment, since the use state of the display device 100 is detected and the control related to the power supply is automatically performed according to the detection result, the power supply is turned on or off. Can reduce user operations. In addition, by automating control related to the power supply in this way, the user feels a longer time to start the transmissive display device (power on) or to end the transmissive display device (power off). You can avoid it. For this reason, the transmissive display device according to the present embodiment can improve the ease of use for the user.

Further, in the transmissive display device according to the present embodiment, when a non-use state of the display device 100 (in the present embodiment, the vines on both sides are closed) is detected when the power is on, However, when the user temporarily does not use the display device 100, for example, when the user temporarily does not use the display device 100, the power consumption is reduced. Can be planned.
As another configuration example, when the control unit 230 detects a non-use state of the display device 100 when the power is on (in this embodiment, the vines on both sides are closed), It is also possible to control to turn off.

  Here, in the present embodiment, as a method of detecting the usage state of the display device 100 according to the state of the display device 100 being worn by the user (person), a sensor (a left eye side sensor 130A, Although a method using the right eye side sensor 130B) has been described, various other methods may be used as such a method.

As an example of the configuration, in the configuration in which the vine portions on both sides of the glasses-type display device cannot be folded and remain open, the sensors shown in FIG. 1 (the left eye side sensor 130A, the right eye side sensor) 130B), a method including an infrared (IR) sensor at the same position can be used.
Specifically, the left eye side sensor and the right eye side sensor are provided at positions facing each other, one sensor transmits infrared light to the other sensor, and the other sensor transmits the infrared light. Receive. When the user does not wear the display device, infrared light transmitted from the one sensor is received by the other sensor, while when the user wears the display device, the infrared light is transmitted from the one sensor. The infrared light is blocked by the user's body and is not received by the other sensor. The other sensor transmits a detection result indicating whether or not infrared light from the one sensor is detected to the control unit, and the control unit receives the detection result and displays a display device based on the detection result. Determine the usage status of. For example, when the infrared light transmitted from the one sensor is changed from a state received by the other sensor to a state not received, the control unit considers that the display device is used by the user, Control such as turning on the power. In addition, for example, when the infrared light transmitted from the one sensor changes from a state where the infrared light is not received by the other sensor to a state where the control unit receives the infrared light, the control unit stops or ends use of the display device by the user. Assuming that the display device is not used by the user, control is performed such as setting the power supply to a sleep state or an off state.

As another configuration example, a user's position is similar to or close to the sensors (left eye side sensor 130A and right eye side sensor 130B) shown in FIG. For example, a method in which a contact sensor such as a pressure sensor is provided at a position in contact with a body (for example, an ear or a head) can be used.
Specifically, when the user does not wear the display device, the sensors on both sides do not detect contact with the user (for example, pressure), while when the user wears the display device, the sensors on both sides Contact with the user (eg, pressure, etc.) is detected. A detection result indicating whether one or both of the sensors on both sides is detecting contact with the user is transmitted to the control unit, and the control unit receives the detection result and displays the detection result based on the detection result. Determine the usage status of. For example, if the control unit changes from a state where contact with the user is not detected by a sensor on both sides to a state where it is detected, the control unit considers that the display device is used by the user, and turns on the power. Take control. In addition, when the control unit changes from a state in which contact with the user is detected by sensors on both sides to a state in which the control is not detected, for example, the use of the display device by the user is stopped or terminated (the display device is switched by the user). It is assumed that the power supply is not used), and the power supply is controlled to be in a sleep state or an off state.

FIG. 7 is an external view of a transmissive display device that is an image display device according to another embodiment of the present invention.
The image display device shown in FIG. 7 includes a left eye side sensor 510A and a right eye side sensor 510B instead of the left eye side sensor 130A and the right eye side sensor 130B shown in FIG. In the example of FIG. 7, the left eye side sensor 510 </ b> A is provided inside the center of the left eye side crane of the display device 100, and the right eye side sensor 510 </ b> B is near the center of the right eye side crane of the display device 100. Is provided inside. Further, in this example, the left eye side sensor 510A and the right eye side sensor 510B are disposed at positions facing each other in a state where both the left eye side crane and the right eye side crane are opened. Further, in this example, the left eye side sensor 510A and the right eye side sensor 510B are composed of, for example, a pressure sensor. 7 are the same as those shown in FIG. 1, and the same reference numerals as those shown in FIG. 1 are given.

FIG. 8 is an external view of a transmissive display device that is an image display device according to another embodiment of the present invention.
The image display device shown in FIG. 8 includes a left eye side sensor 520A and a right eye side sensor 520B instead of the left eye side sensor 130A and the right eye side sensor 130B shown in FIG. In the example of FIG. 8, the left eye side sensor 520 </ b> A is provided in the vicinity of the left eye side hinge (opening / closing part) of the display device 100, and the right eye side sensor 520 </ b> B is provided on the right eye side of the display device 100. It is provided inside the vicinity of the hinge part (opening / closing part). Further, in this example, the left eye side sensor 520A and the right eye side sensor 520B are disposed at positions facing each other in a state where both the left eye side crane and the right eye side crane are opened. Further, in this example, the left eye side sensor 520A and the right eye side sensor 520B detect, for example, a magnetic field that detects whether the hinge is in an opened state or a folded state and closed. It consists of sensors, infrared sensors, pressure sensors, and so on.
The other components shown in FIG. 8 are the same as those shown in FIG. 1, and are denoted by the same reference numerals as those shown in FIG.

FIG. 9 is an external view of a transmissive display device that is an image display device according to another embodiment of the present invention.
The image display device shown in FIG. 9 includes a left eye side sensor 530A and a right eye side sensor 530B instead of the left eye side sensor 130A and the right eye side sensor 130B shown in FIG. In the example of FIG. 9, the left eye side sensor 530 </ b> A is provided on the opening / closing surface of the left eye side hinge part (opening / closing part) of the display device 100, and the right eye side sensor 530 </ b> B is the right eye side hinge of the display device 100. It is provided on the opening / closing surface of the part (opening / closing part). In this example, the open / close surface of the hinge portion refers to a surface that is exposed to the outside when the hinge portion is opened, but is invisible from the outside when the hinge portion is closed. Further, in this example, the left eye side sensor 530A and the right eye side sensor 530B are, for example, pressure sensors that detect whether the hinge is in an opened state or a folded state and closed. Etc.
The other components shown in FIG. 9 are the same as those shown in FIG. 1, and are denoted by the same reference numerals as those shown in FIG.

Thus, if a sensor is arrange | positioned at a hinge part, it will be thought that a detection can be made easy about two steps of an open / close state.
As an example, the eyeglass-type display device 100 is configured such that the hinge part opens wider than normal use so that the user can easily wear it, and the repulsive force of the hinge part on the inside of the spring Is configured to fit the user's head.

  Moreover, as a sensor, the other sensor which can detect the state more than 2 values may be used, for example. For example, a pressure sensor that can detect a ternary (three-stage) state of the pressure of contact with a human head or the like may be used.

Further, the sensors are not limited to those illustrated, and various types of sensors such as an optical sensor, a proximity sensor, and a pressure sensor may be used.
In addition, the location of the sensor is not limited to that illustrated, and various locations may be used.

Further, for example, one display device 100 may include two or more types of sensors. Two or more types of sensors provided in one display device 100 may detect different states, for example, or detect the same state for the purpose of confirming more than twice. It may be a thing.
In addition, when two or more types of sensors are provided in one display device 100, for example, these sensors may be provided in the same place (or a close place), or each type of sensor is suitable for each. You may prepare for different places.
As a specific example, it is also possible to provide two or more different sensors shown in FIGS. 1, 7, 8, and 9 in the same display device 100.

  In the above-described embodiment, the configuration including the left-eye sensor and the right-eye sensor as the sensor has been described. However, as another configuration example, one of the left-eye sensor and the right-eye sensor is used. In the case where the use state of the display device can be detected only by the above, a configuration in which a sensor is provided only on one of them may be used.

FIG. 10 is an external view of a transmissive display device that is an image display device according to another embodiment of the present invention when a sensor is provided on only one of the left and right.
The image display apparatus shown in FIG. 10 includes a left eye side sensor 540A instead of the left eye side sensor 130A and the right eye side sensor 130B shown in FIG. In the example of FIG. 10, the left eye side sensor 540 </ b> A is provided inside the center of the left eye side crane of the display device 100. Further, in this example, the left eye side sensor 540A is composed of, for example, a pressure sensor.
The other components shown in FIG. 10 are the same as those shown in FIG. 1, and are denoted by the same reference numerals as those shown in FIG.
Here, in the example of FIG. 10, the configuration in which the sensor is provided only on the left side of the left and right is shown, but as another configuration example, a configuration in which the sensor is provided only on the right side of the left and right can be used.

  In the above embodiment, the configuration in which the control related to the power supply is automatically performed based on the result of detecting the use state of the display device has been described. For example, the transmissive display device may be provided with a function of performing control such as power on / off.

[Second Embodiment]
The second embodiment of the present invention will be described in detail.
The transmissive display device according to the present embodiment schematically has the same configuration as that of the transmissive display device according to the first embodiment shown in FIGS. 1, 2, and 3. For this reason, in this embodiment, it demonstrates using the code | symbol same as what was shown in FIGS. 1-3.
In the following, the configuration and operation different from the case of the first embodiment will be mainly described in detail.

  The display device 100 of the transmissive display device according to the present embodiment includes both the left eye side sensor 130A and the right eye side sensor 130B. The left eye side sensor 130A and the right eye side sensor 130B each independently detect the usage state of the display device 100 by the user.

  Here, as such sensors (the left eye side sensor 130A and the right eye side sensor 130B), as an example, the open / closed state of the vine portion of the glasses-type display device 100 is independently detected on each of the left side and the right side. A sensor such as an optical sensor, a proximity sensor, or a pressure sensor can be used. In this configuration, the state in which the vine portion of the display device 100 is opened on each of the left eye side and the right eye side is regarded as a state used by the user, while the vine portion of the display device 100 is closed. The state is regarded as a state that is not used by the user (non-use state).

  In addition, in this embodiment, since the example of a structure which determines the use condition of the display apparatus 100 by a user with each of the left eye side and the right eye side is shown, for example, the vine on one side is opened. When the other side of the temple is closed, the user may not be able to wear the display device 100 as a whole, but the one side is regarded as being used by the user.

  The left eye side sensor 130 </ b> A and the right eye side sensor 130 </ b> B are each independently in a state in which the user is considered to use the display device 100 (for example, a state in which a vine is opened) or the user uses the display device 100. It is detected whether the state is considered not to be used (for example, the state in which the vine is closed), and the detection result is transmitted to the control unit 230 as a detection result regarding the use state of the display device 100.

The control unit 230 receives the detection result transmitted from the left eye side sensor 130A, and determines the use state of the display device 100 on the left eye side based on the received detection result.
Similarly, the control unit 230 receives the detection result transmitted from the right eye side sensor 130B, and determines the usage state of the display device 100 on the right eye side based on the received detection result.

  Based on these determination results, the control unit 230 determines a combination of the determination result of the use state of the display device 100 on the left eye side and the determination result of the use state of the display device 100 on the right eye side. Based on the determination result, the power supply state from the power supply unit 260 is controlled.

  Here, as the combination of the determination result of the use state of the display device 100 on the left eye side and the determination result of the use state of the display device 100 on the right eye side, both the left eye side and the right eye side are used. Is considered to be used, both left and right eye are considered not to be used, only left eye is considered to be used, and only right eye is considered to be used There is a state. The control unit 230 controls the supply state of power from the power supply unit 260 as determined in advance when one or more of these combinations is detected in combination.

Various methods may be used as a method of controlling the supply state of power from the power supply unit 260.
For example, the control unit 230 determines whether the left eye side and the right eye side are based on the combination of the determination result of the usage state of the display device 100 on the left eye side and the determination result of the usage state of the display device 100 on the right eye side. If both are considered to be used (e.g., the vines on both sides are opened), control is made to transition to the power on state. In addition, the control unit 230 controls to shift to the power-off state when both the left eye side and the right eye side are considered not to be used (for example, the cranes on both sides are closed). To do. Further, the control unit 230 considers that only one of the left eye side and the right eye side is not used (for example, the one side crane is closed and the other side crane is opened). Control to shift to the sleep state.

  As described above, in the transmissive display device according to the present embodiment, the control unit 230 detects the detection result (detection regarding the usage state of the display device 100) input from the sensors (the left eye side sensor 130A and the right eye side sensor 130B). The use state of the display device 100 is determined based on the result), and the power supply state from the power supply unit 260 is controlled based on the detection result as determined in advance.

Thereby, in the transmissive display device according to the present embodiment, the convenience of the user can be improved according to the usage state of the device.
Specifically, in the transmissive display device according to the present embodiment, based on the combination of the determination result of the usage state of the display device 100 on the left eye side and the determination result of the usage state of the display device 100 on the right eye side, Control regarding the power supply can be performed.

[Third Embodiment]
A third embodiment of the present invention will be described in detail.
The transmissive display device according to the present embodiment schematically has the same configuration as that of the transmissive display device according to the first embodiment shown in FIGS. 1, 2, and 3. For this reason, in this embodiment, it demonstrates using the code | symbol same as what was shown in FIGS. 1-3.
In the following, the configuration and operation different from the case of the first embodiment will be mainly described in detail.

  The display device 100 of the transmissive display device according to the present embodiment includes both the left eye side sensor 130A and the right eye side sensor 130B. The left eye side sensor 130A and the right eye side sensor 130B each independently detect the usage state of the display device 100 by the user.

  Here, as an example of such sensors (the left eye side sensor 130A and the right eye side sensor 130B), there are two stages of opening / closing states of the vine portion of the eyeglass-type display device 100, and the opening / closing states are indicated as It is possible to use an optical sensor, a proximity sensor, a pressure sensor, or the like that independently detects the left side and the right side, including the stage. Specifically, in each of the left side and the right side, the state where the vine portion is closed, and the state where the vine portion is opened to the first stage where the user can attach the vine portion, There is an open state in the second stage in which the vine portion is opened further than in the open state in the first stage. In this configuration, in each of the left eye side and the right eye side, the state in which the vine portion of the display device 100 is opened in the first step is regarded as the first step state used by the user, and the display device 100 The state where the vine portion is opened in the second stage is regarded as the second stage state used by the user, while the state where the vine portion of the display device 100 is closed is not used by the user (not used). Status).

  In the present embodiment, a configuration example is shown in which the user determines the usage state of the display device 100 for each of the left eye side and the right eye side. Although it is possible that the user cannot wear the display device 100 as a whole when the stage is opened but the other side is closed, the one side is used by the user. It is considered as a state.

  The left eye side sensor 130A and the right eye side sensor 130B are each in a first stage state in which the user is considered to use the display device 100 (for example, a state in which a vine is opened in the first stage). Or a second stage state in which the user is considered to use the display device 100 (for example, a state in which a vine is opened in the second stage), or a state in which the user is deemed not to use the display device 100 (For example, the state in which the vine is closed), and the detection result is transmitted to the control unit 230 as a detection result regarding the use state of the display device 100.

The control unit 230 receives the detection result transmitted from the left eye side sensor 130A, and determines the use state of the display device 100 on the left eye side based on the received detection result.
Similarly, the control unit 230 receives the detection result transmitted from the right eye side sensor 130B, and determines the usage state of the display device 100 on the right eye side based on the received detection result.

  Then, based on these determination results, the control unit 230 determines the first stage state in which the user is assumed to use the display device 100 and the state in which the user is assumed not to use the display device 100 on the left eye side. The combination of the determination result of the usage state of the display device 100 and the determination result of the usage state of the display device 100 on the right eye side is determined, and the supply state of power from the power supply unit 260 is controlled based on the determination result.

  Here, for the first stage state in which the user is assumed to use the display device 100 and the state in which the user is considered not to use the display device 100, the determination result of the use state of the display device 100 on the left eye side and the right eye As a combination with the determination result of the usage state of the display device 100 on the side, a state in which both the left eye side and the right eye side are considered to be used in the first stage, and the left eye side and the right eye side There are a state in which both are considered not to be used, a state in which only the left eye side is considered to be used in the first stage, and a state in which only the right eye side is considered to be used in the first stage. The control unit 230 controls the supply state of power from the power supply unit 260 as determined in advance when one or more of these combinations is detected in combination.

Various methods may be used as a method of controlling the supply state of power from the power supply unit 260.
For example, the control unit 230 determines the use state of the display device 100 on the left eye side for the first stage state in which the user is assumed to use the display device 100 and the state in which the user is considered not to use the display device 100. Based on the combination of the result and the determination result of the use state of the display device 100 on the right eye side, both the left eye side and the right eye side are considered to be used in the first stage (for example, both sides If the crane is opened in the first stage), control is performed so that the power is turned on. In addition, the control unit 230 controls to shift to the power-off state when both the left eye side and the right eye side are considered not to be used (for example, the cranes on both sides are closed). To do. Further, the control unit 230 considers that only one of the left eye side and the right eye side is not used (for example, the one side crane is closed and the other side crane is the first stage). Control to shift to the sleep state.

  Further, the control unit 230 determines whether the user is assumed to use the display device 100 based on the determination result received from the left eye side sensor 130A and the determination result received from the right eye side sensor 130B. The combination of the determination result of the use state of the display device 100 on the eye side and the determination result of the use state of the display device 100 on the right eye side is determined, and the power supply state from the power supply unit 260 is controlled based on the determination result. To do.

  Here, for the second stage state in which the user is assumed to use the display device 100, a combination of the determination result of the use state of the display device 100 on the left eye side and the determination result of the use state of the display device 100 on the right eye side The state where both the left eye side and the right eye side are considered to be used in the second stage, the state where only the left eye side is considered to be used in the second stage, and the right eye side only There are states that are considered to be used in the second stage. The control unit 230 controls the supply state of power from the power supply unit 260 as determined in advance when one or more of these combinations is detected in combination.

Various methods may be used as a method of controlling the supply state of power from the power supply unit 260.
For example, the control unit 230 determines the use state determination result of the display device 100 on the left eye side and the use state of the display device 100 on the right eye side for the second stage state in which the user is assumed to use the display device 100. Based on the combination with the results, if both the left eye side and the right eye side are considered to be used in the second stage (eg, the vines on both sides opened in the second stage) The display units on both sides (the left-eye display unit 110A and the right-eye display unit 110B) are controlled to turn on the power. Further, the control unit 230 considers that only one of the left eye side and the right eye side is used in the second stage (for example, the crane on only one side is opened in the second stage). In this case, the display unit on one side (one of the left-eye display unit 110A and the right-eye display unit 110B) is turned on, and the other side display unit (left-eye display unit 110A). Control is performed so that the other of the display unit 110A and the right-eye display unit 110B) is in a sleep state or a power-off state.

  As described above, in the transmissive display device according to the present embodiment, the control unit 230 detects the detection result (detection regarding the usage state of the display device 100) input from the sensors (the left eye side sensor 130A and the right eye side sensor 130B). The use state of the display device 100 is determined based on the result), and the power supply state from the power supply unit 260 is controlled based on the detection result as determined in advance.

Thereby, in the transmissive display device according to the present embodiment, the convenience of the user can be improved according to the usage state of the device.
Specifically, in the transmissive display device according to the present embodiment, there are two stages in which the user is considered to use the display device 100, and the use state determination result of the display device 100 on the left eye side and the right eye side Based on the combination with the determination result of the usage state of the display device 100, it is possible to control the power supply.

  In the transmissive display device according to the present embodiment, as an example, the user wears the vines on both sides of the eyeglass-type display device 100 with the vines opened in the first stage and the vines on only one side in the second stage. To open the one side display unit (one of the left-eye display unit 110A and the right-eye display unit 110B) in an on state, while viewing an image displayed on the other side. The display unit (the other of the left-eye display unit 110 </ b> A and the right-eye display unit 110 </ b> B) can be turned off to see the outside world and perform operations.

  Here, as a method for turning on the display unit on one side (one of the left-eye display unit 110A and the right-eye display unit 110B), the control unit 230 may be, for example, the one-side display unit. It is possible to use a method of turning on the backlight of the display portion and transmitting an image signal to the display portion on one side. On the other hand, as a method for turning off the display unit on the other side (the other of the left-eye display unit 110A and the right-eye display unit 110B), the control unit 230 may, for example, A method can be used in which the backlight power supply in the display portion is turned off and an image signal is not transmitted to the display portion on the other side.

  In the present embodiment, the configuration in which the user is considered to use the display device 100 is shown in two stages. However, as another configuration example, the user is assumed to use the display device 100 in three or more stages. A configuration can also be used.

[Fourth Embodiment]
The fourth embodiment of the present invention will be described in detail.
The transmissive display device according to the present embodiment schematically has the same configuration as that of the transmissive display device according to the first embodiment shown in FIGS. 1, 2, and 3. For this reason, in this embodiment, it demonstrates using the code | symbol same as what was shown in FIGS. 1-3.
In the following, the configuration and operation different from the case of the first embodiment will be mainly described in detail.

  The display device 100 of the transmissive display device according to the present embodiment includes both the left eye side sensor 130A and the right eye side sensor 130B. The left eye side sensor 130A and the right eye side sensor 130B each independently detect the usage state of the display device 100 by the user.

  Here, as an example of such sensors (the left eye side sensor 130A and the right eye side sensor 130B), there are two stages of opening / closing states of the vine portion of the eyeglass-type display device 100, and the opening / closing states are indicated by It is possible to use an optical sensor, a proximity sensor, a pressure sensor, or the like that independently detects the left side and the right side, including the stage. Specifically, in each of the left side and the right side, the state where the vine portion is closed, and the state where the vine portion is opened to the first stage where the user can attach the vine portion, There is an open state in the second stage in which the vine portion is opened further than in the open state in the first stage. In this configuration, in each of the left eye side and the right eye side, the state in which the vine portion of the display device 100 is opened in the first step is regarded as the first step state used by the user, and the display device 100 The state where the vine portion is opened in the second stage is regarded as the second stage state used by the user, while the state where the vine portion of the display device 100 is closed is not used by the user (not used). Status).

  In the present embodiment, a configuration example is shown in which the user determines the usage state of the display device 100 for each of the left eye side and the right eye side. Although it is possible that the user cannot wear the display device 100 as a whole when the stage is opened but the other side is closed, the one side is used by the user. It is considered as a state.

Each of the left eye side sensor 130A and the right eye side sensor 130B is in a second stage state where the user is considered to use the display device 100 (for example, a state where the vine is opened in the second stage). Or another state, and the detection result is transmitted to the control unit 230 as a detection result relating to the usage state of the display device 100.
In addition, as another state said here, the state in which the user is considered to use the display device 100 (for example, the state in which the vine is opened in the first step), and the user uses the display device 100 There is a state that is regarded as not being performed (for example, a state in which the vine is closed), and in the present embodiment, a case where these states are not distinguished is shown.

The control unit 230 receives the detection result transmitted from the left eye side sensor 130A, and determines the use state of the display device 100 on the left eye side based on the received detection result. Based on the determination result, the control unit 230 controls the supply state of power from the power supply unit 260 for the left-eye display unit 110A.
Similarly, the control unit 230 receives the detection result transmitted from the right eye side sensor 130B, and determines the usage state of the display device 100 on the right eye side based on the received detection result. Based on the determination result, the control unit 230 controls the supply state of power from the power supply unit 260 for the right eye display unit 110B.

Various methods may be used as a method of controlling the supply state of power from the power supply unit 260.
For example, the control unit 230 considers that the display device 100 is used in the second stage based on the determination result of the use state of the display device 100 independently for each of the left eye side and the right eye side (for example, When the vine is opened in the second stage), the display unit (the corresponding one of the left-eye display unit 110A and the right-eye display unit 110B) is controlled to be turned on. To do. Further, the control unit 230 regards that the display device 100 is not used in the second stage based on the use state determination result of the display device 100 independently for each of the left eye side and the right eye side (for example, When the vine is opened or closed in the first stage), the sleep state or the power supply of the display unit (the corresponding one of the left-eye display unit 110A and the right-eye display unit 110B) is turned on. Control to turn off.

  As described above, in the transmissive display device according to the present embodiment, the control unit 230 detects the detection result (detection regarding the usage state of the display device 100) input from the sensors (the left eye side sensor 130A and the right eye side sensor 130B). The use state of the display device 100 is determined based on the result), and the power supply state from the power supply unit 260 is controlled based on the detection result as determined in advance.

Thereby, in the transmissive display device according to the present embodiment, the convenience of the user can be improved according to the usage state of the device.
Specifically, in the transmissive display device according to the present embodiment, there are two stages in which the user is considered to use the display device 100, and the display device 100 is independently provided for each of the left eye side and the right eye side. Control related to the power source can be performed based on the determination result of the use state.

  In the transmissive display device according to the present embodiment, as an example, the user wears the vines on both sides of the eyeglass-type display device 100 with the vines opened in the first stage and the vines on only one side in the second stage. To open the one side display unit (one of the left-eye display unit 110A and the right-eye display unit 110B) in an on state, while viewing an image displayed on the other side. The display unit (the other of the left-eye display unit 110 </ b> A and the right-eye display unit 110 </ b> B) can be turned off to see the outside world and perform operations. Further, the user turns on the display parts on both sides (both the left-eye display part 110A and the right-eye display part 110B) by opening the vines on both sides of the glasses-type display device 100 in the second stage. An image displayed as a state can be viewed.

  Here, as a method for turning on the display unit on one side (one of the left-eye display unit 110A and the right-eye display unit 110B), the control unit 230 may be, for example, the one-side display unit. It is possible to use a method of turning on the backlight of the display portion and transmitting an image signal to the display portion on one side. On the other hand, as a method for turning off the display unit on the other side (the other of the left-eye display unit 110A and the right-eye display unit 110B), the control unit 230 may, for example, A method can be used in which the backlight power supply in the display portion is turned off and an image signal is not transmitted to the display portion on the other side.

  In the present embodiment, the configuration in which the user is considered to use the display device 100 is shown in two stages. However, as another configuration example, the user is assumed to use the display device 100 in three or more stages. A configuration can also be used.

[Summary of Embodiments Shown above]
Here, various sensors (left eye side sensor 130A, right eye side sensor 130B) may be used.
In addition, various types of control may be performed as control related to the power supply in the apparatus. For example, for the power source, one or more of control from an on state to an off state, control from an on state to a sleep state, control from an off state to an on state, control from a sleep state to an on state, etc. Can do. Moreover, not only can the power supply be controlled for the entire apparatus, but also the power supply for some components included in the apparatus can be controlled.

  As an example, when a component having a wireless function is included in the apparatus, the power supply state can be controlled only for the component having a wireless function. Thereby, for example, in a place where it is preferable not to use the wireless function, it is possible to turn off the power of the component having the wireless function provided in the apparatus.

The power supply unit 260 may be provided in the display device 100 instead of the control device 200, or both the control device 200 and the display device 100 may be provided with a power supply unit.
Moreover, a shade can also be provided with respect to a display part (display part 110A for left eyes, display part 110B for right eyes). Note that the shade for the left eye and the shade for the right eye may be separate or integrated, for example.

Further, for the left eye component and the right eye component that are paired, for example, the same control may be performed for the left eye and the right eye, or for the left eye and the right eye. Different controls may be used for different applications.
Moreover, even if control (same control or different control) is performed on both the left-eye component and the right-eye component unit, for example, for the left-eye component unit and the right-eye component unit. Alternatively, only one of the left eye and the right eye may be controlled.

  In the above embodiment, the user operates the operation input unit 270 (one or both of the operation unit 210 and the operation button unit 250 in the present embodiment) of the control device 200, so that the operation input is performed. Although the example detected by the control unit 230 has been shown, as another configuration example, a part or all of the operation input unit that receives an operation input from the user may be provided in the display device 100, for example.

In the above embodiment, a transmissive display device (a transmissive display device for both eyes) having both left-eye and right-eye components is shown as an example. However, as another configuration example, The present invention may be applied to a transmissive display device for only one of the left eye and the right eye (one-eye transmissive display device).
In the above embodiment, an example in which the light from the outside world is applied to a see-through display device (transmission type display device) that transmits light from the outside to the image extraction area has been described. However, light from the outside world is transmitted to the image extraction area. It is also possible to apply to a closed type display device (non-transmission type display device) that is not allowed to be used.

  In the image display device, for example, even when the liquid crystal is driven, when the light source is turned off, the image is not displayed (image is not displayed). This non-display state of the image can be used as one mode of the sleep state. However, in a self-luminous organic EL (Electro Luminescence) display, on / off of the liquid crystal and the light source is controlled simultaneously.

In addition, the present invention may be applied to, for example, a light guide system that uses a hologram reflection surface.
In addition, the present invention may be applied to, for example, an apparatus in which image light is simply reflected by a reflecting surface without using a light guide plate.
For example, various known techniques may be applied to the present invention. As a specific example, the display device 100 may include a pupil division type see-through optical system as an optical system, or may include a transflective type see-through optical system. As a specific example, the display device 100 includes, as an optical system, an optical system included in an image display device described in Japanese Patent Application Laid-Open No. 2008-20770, and a head-mounted display described in Japanese Patent No. 4636164. An optical system, an optical system provided in a beam scanning display device described in International Publication No. 2009/041055, or an optical system provided in a display device described in Japanese Patent No. 4055283 may be provided.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes designs and the like that do not depart from the gist of the present invention.

  Note that a program for realizing the functions of arbitrary components in the apparatus described above may be recorded on a computer-readable recording medium, and the program may be read into a computer system and executed. The “computer system” mentioned here includes an OS (Operating System) and hardware such as peripheral devices. “Computer-readable recording medium” means a portable disk such as a flexible disk, a magneto-optical disk, a ROM (Read Only Memory), a CD (Compact Disk) -ROM, or a hard disk built in a computer system. Refers to the device. Further, the “computer-readable recording medium” means a volatile memory (RAM: Random Access) inside a computer system that becomes a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. Memory that holds a program for a certain period of time, such as Memory).

In addition, the above program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting a program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.
Further, the above program may be for realizing a part of the functions described above. Further, the program may be a so-called difference file (difference program) that can realize the above-described functions in combination with a program already recorded in the computer system.

DESCRIPTION OF SYMBOLS 10A ... Image formation part for left eyes, 10B ... Image formation part for right eyes, 11A ... Image generation part for left eyes, 11B ... Image generation part for right eyes, 12A ... Projection optical system for left eyes, 12B ... For right eyes Projection optical system, 20A: light guide for left eye, 20B ... light guide for right eye, 21A ... reflection for left eye, 21B ... reflection for right eye, 100 ... display device, 110A ... display for left eye 110B ... right eye display unit, 130A ... left eye side sensor, 130B ... right eye side sensor, 200 ... control device, 210 ... operation unit, 230 ... control unit, 240 ... storage unit, 250 ... operation button unit, 260 ... power supply unit, 270 ... operation input unit, 310A ... user's left eye, 410A ... left eye backlight light source, 410B ... right eye backlight light source, 411A ... left eye light modulation element, 411B ... right eye light Modulating element, 510A, left eye side sensor, 51 B ... right eye side sensors, 520A ... left-eye sensor, 520B ... right eye sensor, 530A ... left-eye sensor, 530B ... right eye sensor, 540A ... left-eye sensor,

Claims (9)

A display unit that outputs image light to an image extraction area;
A sensor for detecting a use state of a display device provided with the display unit;
A control unit that controls a power supply state based on a use state of the display device detected by the sensor;
An image display device comprising: The display device is a glasses-type display device,
The sensor detects a predetermined first usage state in which the display device is deemed to be used by a user and a predetermined second usage state in which the user is deemed not to use the display device. ,
The control unit controls to turn the power source from an off state to an on state when the first use state is detected by the sensor based on the use state of the display device detected by the sensor. , When the second use state is detected by the sensor, control is performed so that the power source is changed from an on state to a predetermined sleep state or off state.
The image display apparatus according to claim 1. The display device includes a left-eye component and a right-eye component,
The sensor is composed of a left eye side sensor and a right eye side sensor for detecting a use state of the display device by a user independently on each of the left eye side and the right eye side,
The control unit is configured to combine a use state of the display device on the left eye side detected by the left eye side sensor and a use state of the display device on the right eye side detected by the right eye side sensor. Based on the power supply status,
The image display apparatus according to claim 1. The display device includes a left-eye component having two stages considered to be used by a user, and a right-eye component having two stages considered to be used by the user,
The sensor is composed of a left eye side sensor and a right eye side sensor for detecting a use state of the display device by a user independently on each of the left eye side and the right eye side,
The control unit is configured to combine a use state of the display device on the left eye side detected by the left eye side sensor and a use state of the display device on the right eye side detected by the right eye side sensor. Based on the power supply status,
The image display apparatus according to claim 1. The display device includes a left-eye component having two stages considered to be used by a user, and a right-eye component having two stages considered to be used by the user,
The sensor is composed of a left eye side sensor and a right eye side sensor for detecting a use state of the display device by a user independently on each of the left eye side and the right eye side,
The control unit determines a power supply state based on a use state of the display device detected by the left eye side sensor or the right eye side sensor independently for each of the left eye side and the right eye side. Control,
The image display apparatus according to claim 1. A transmissive image display device,
The display unit transmits light from the outside to the image extraction area;
The image display device according to claim 1, wherein the image display device is an image display device. The display device is mounted on a user's head,
The display unit includes a display element, a projection lens that projects image light from the display element, and a light guide unit that is fixed to the projection lens and guides the image light from the projection lens to the image extraction area. With
An image of image light from the display element and an image of light from the outside can be simultaneously observed through the light guide unit.
The image display device according to claim 6. A sensor detecting a use state of a display device provided with a display unit that outputs image light to an image extraction area;
A step of controlling a power supply state based on a use state of the display device detected by the sensor;
A power control method for an image display device, comprising: The display unit outputs image light to the image extraction area;
A procedure for a sensor to detect a use state of a display device provided with the display unit;
A control unit for controlling a power supply state based on a use state of the display device detected by the sensor;
A power control program for an image display device for causing a computer to execute.

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