WO2012026375A1 - Stereoscopic display apparatus - Google Patents

Abstract

Glasses (3) are provided with an infrared transmitter (6a) for transmitting one or more pieces of information relating to the usage state of the glasses (3) to a display device (2), the display device (2) is provided with an infrared receiver (6b) for receiving the information, and information, for example, relating to the period of time for which the glasses (3) are worn, the relative position of the glasses (3) with respect to the display device (2), and the remaining quantity of the power for driving the glasses (3) is displayed on a display (2b) of the display device (2). Consequently, a stereoscopic display apparatus which informs the user of the glasses, via the display device, of one or more pieces of information relating to the usage state of the glasses can be implemented.

Description

3D display device

The present invention relates to a stereoscopic display device including a display device that displays a stereoscopic video and glasses for viewing the stereoscopic video.

The human eyes are about 6.5 cm apart, which causes a slight difference between the image shown in the left eye and the image shown in the right eye. This is called binocular parallax.

In this way, different images are projected on the left and right eyes of a person. In the human brain, these two different images are recognized as one image. This process And people will feel a three-dimensional feeling.

Therefore, when the same image is displayed on both eyes of the person, the person feels that the image is displayed on the screen of the display device, but the horizontal position is slightly different between the left eye and the right eye of the person. When an image is shown, a person feels a three-dimensional feeling that the image is projected from the back side of the screen of the display device or from the screen of the display device.

Conventionally, various methods for displaying a stereoscopic image having a stereoscopic effect have been proposed, and among them, a method using the binocular parallax described above is generally used.

Among the methods using the above binocular parallax principle, the most commonly used method is a method using special glasses. For example, a red-blue glasses method (anaglyph method) or a polarized glasses method ( Passive glass method) and shutter glasses method (active glass method) are well known.

The red / blue glasses method is a method of giving a stereoscopic effect by separating a left-eye image and a right-eye image into red and blue to generate left-right parallax. However, this method has problems that color reproducibility is poor, eyes are easily tired, and the three-dimensional feeling that can be expressed is weak.

In addition, the polarizing glasses method allows the left-eye image and the right-eye image to be alternately displayed on every other horizontal line on the display surface of the display device, and the polarizing film can be separated into left and right images for each horizontal line. In addition, the image is attached to the display surface of the display device, and the viewer is allowed to wear polarized glasses so that the left-eye image and the right-eye image can be recognized separately. However, since the left-eye image and the right-eye image are alternately displayed every other horizontal line, there is a problem that the resolution is halved.

Therefore, a stereoscopic display device including a shutter glasses and a display device that alternately displays an image for the left eye and an image for the right eye, i.e., a stereoscopic display device of the shutter glasses type is the mainstream in the field of stereoscopic display devices. It has become.

In the shutter glasses method, the left eye image and the right eye image are alternately displayed at the normal double speed (double frequency) on the display device side, and at the same time, this synchronization signal is transmitted to the shutter glasses. A method of separating and recognizing a left-eye image and a right-eye image by allowing a viewer to transmit and block light emitted from a display surface of the display device at regular intervals using the shutter glasses. It is. That is, when the left eye image is displayed on the display surface of the display device, the shutter glasses allow the viewer to see the left eye image only with the left eye, When the right eye image is displayed on the display surface, the shutter glasses allow the viewer to see the right eye image only with the right eye.

Japanese Patent Laid-Open No. 9-44141 (published February 14, 1997)

However, for example, in the stereoscopic display device having glasses and a display device such as the red-blue glasses method, the polarized glasses method, and the shutter glasses method as described above, the glasses and the display device are used together. In spite of this, in the past, information on the usage status of the spectacles was not informed to the user of the spectacles. Since it was used without knowing where it was placed, the following problems occurred.

For example, when the user of the spectacles is not informed of the wearing time of the spectacles (viewing time of the stereoscopic display device) as in the conventional case, the user wears the spectacles for how long. Forgetting whether he / she wears (viewed the 3D display device), wearing the glasses (viewing the 3D display device) for a long time, and causing eyestrain.

Further, in such a stereoscopic display device, an optimum viewing position is defined for each maker, but the user of the glasses does not necessarily view the display device at the optimum viewing position. Conventionally, the user of the glasses has not been informed of the relative position of the glasses with respect to the display device.

Therefore, even when the position of the user of the glasses deviates from the optimum viewing position, the user is not likely to notice, and the display device can be seen from a position beyond the range of the optimum viewing position. This causes problems such as blurring of the screen and fatigue of the eyes.

Furthermore, for example, in a shutter glasses system including shutter glasses driven by a portable power source or the like, conventionally, the user of the glasses has not been informed of the remaining amount of power to drive the glasses, It is impossible to predict when the power to drive the glasses will be cut off, and when the power is cut off, there is a problem that the stereoscopic display device cannot be seen suddenly.

As exemplified above, in the past, information on the usage status of the spectacles was not informed to the user of the spectacles. Since it was used without knowing whether it was being used, various problems occurred.

The present invention has been made in view of the above problems, and provides a stereoscopic display device that informs a user of the glasses via the display device of one or more information regarding the usage status of the glasses. For the purpose.

In order to solve the above problems, a stereoscopic display device according to the present invention is a stereoscopic display device that includes a display device that displays a stereoscopic image and glasses for viewing the stereoscopic image. The display device includes an information transmission unit that transmits one or more pieces of information regarding the usage status of the glasses to the display device, and the display device includes an information reception unit that receives the information. The above information is displayed on the apparatus.

According to the above configuration, the spectacles are provided with an information transmission unit that transmits one or more pieces of information regarding the usage status of the spectacles to the display device, and the display device includes information for receiving the information. A receiving unit is provided.

Therefore, one or more pieces of information regarding the usage status of the glasses, for example, the wearing time of the glasses (viewing time of the stereoscopic display device), the relative position of the glasses with respect to the display device, and the remaining power of the power source for driving the glasses Etc. can be notified to the user of the glasses via the display device.

Therefore, according to the above configuration, since the information regarding the usage status of the glasses has not been notified to the user of the glasses, the user of the glasses is in any situation of the glasses used. It can be used as it is without knowing whether it has been placed on, and various problems that have occurred can be suppressed.

In order to solve the above problems, a stereoscopic display device of the present invention is a stereoscopic display device that includes a display device that displays a stereoscopic image and glasses for viewing the stereoscopic image, and the display device The glasses include a position detection unit that detects a relative position between the display surface of the display device and the glasses, and the position detection unit provided in the display device displays the display of the display device. A relative position of the glasses with respect to a surface is detected, and the detected relative position of the glasses with respect to the display surface of the display device is displayed on the display device.

According to the above configuration, the relative position of the glasses with respect to the display surface of the display device is detected and displayed on the display device by the position detection unit provided in the display device.

Therefore, it is not necessary to separately provide an information transmission unit on the glasses and an information reception unit on the display device.

According to the above configuration, since the relative position of the glasses with respect to the display surface of the display device is displayed on the display device, the position of the user of the glasses does not deviate from the optimum viewing position. As described above, the user can be careful, so that problems such as screen blur and eye fatigue that may occur when viewing the display device from a position beyond the range of the optimum viewing position are generated. Can be suppressed.

As described above, in the stereoscopic display device of the present invention, the eyeglasses are provided with an information transmission unit that transmits one or more pieces of information regarding the usage status of the eyeglasses to the display device. The information receiving unit for receiving the information is provided, and the information is displayed on the display device.

In the stereoscopic display device of the present invention, as described above, the display device and the glasses are provided with a position detection unit that detects a relative position between the display surface of the display device and the glasses. And the position detection unit provided in the display device detects the relative position of the glasses with respect to the display surface of the display device, and the relative position of the glasses with respect to the detected display surface of the display device. Is a configuration displayed on the display device.

Therefore, it is possible to realize a stereoscopic display device that notifies one or more information on the usage status of the glasses to the user of the glasses via the display device.

It is a figure which shows schematic structure of the three-dimensional display apparatus of one embodiment of this invention. It is a figure which shows the case where the display apparatus with which the three-dimensional display apparatus of one embodiment of this invention was equipped is a television receiver. It is a figure which shows the case where the display apparatus with which the three-dimensional display apparatus of one embodiment of this invention was equipped is provided with the recording medium reproducing | regenerating apparatus. It is a figure which shows a mode that the information regarding the usage condition of spectacles is displayed on the display part of a display apparatus in the three-dimensional display apparatus of one embodiment of this invention. In the three-dimensional display apparatus of one embodiment of this invention, it is a figure which shows a mode that the other information regarding the use condition of spectacles is displayed on the display part of a display apparatus. It is a block diagram which shows schematic structure of the display apparatus with which the stereoscopic display apparatus of one embodiment of this invention was equipped, and spectacles. It is a figure for demonstrating the principle which can detect the inclination-angle of spectacles using the acceleration sensor in the stereoscopic display device of one embodiment of this invention. It is a figure for demonstrating the ultrasonic transmission part and the ultrasonic reception part with which the stereoscopic display device of one embodiment of this invention was equipped. FIG. 6 is a diagram for explaining calculation of the number of clocks sent from the ultrasonic wave reception unit to the distance calculation processor unit in the stereoscopic display device according to the embodiment of the present invention. FIG. 6 is a diagram for explaining a method of calculating the position of the glasses in the left-right direction with respect to the display surface in the display unit of the display device in the stereoscopic display device according to the embodiment of the present invention. FIG. 6 is a diagram for explaining a method of calculating the vertical position of the glasses with respect to the display surface in the display unit of the display device in the stereoscopic display device according to the embodiment of the present invention. In the stereoscopic display device according to the embodiment of the present invention, it is a diagram showing an optimal viewing area of a viewer wearing glasses on the display surface of the display unit of the display device. The stereoscopic display device according to the embodiment of the present invention includes a case in which a rotation unit that moves the display surface is provided so that the position of the glasses with respect to the display surface in the display unit of the display device is within the predetermined range. FIG. In the three-dimensional display apparatus of other one Embodiment of this invention, it is a figure which shows the structure of the display apparatus provided with the infrared rays light-receiving part of a slit system as a position detection part. It is a figure which shows the structure of the display apparatus provided with the infrared rays light-receiving part of the peak search system in the three-dimensional display apparatus of other one Embodiment of this invention. In the three-dimensional display apparatus of other one Embodiment of this invention, it is a figure which shows the structure of the display apparatus provided with the infrared rays light-receiving part of another slit system as a position detection part. In a stereoscopic display device according to still another embodiment of the present invention, the spectacles are provided with an imaging unit as the position detection unit, and a predetermined image captured by the imaging unit is provided on the display surface side of the display device. It is a figure which shows the case where the marker which has a space | interval is provided.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in this embodiment are merely one embodiment, and the scope of the present invention should not be construed as being limited thereto.

[Embodiment 1]
Hereinafter, a schematic configuration of the stereoscopic display device 1 will be described with reference to FIG.

As shown in the figure, the stereoscopic display device 1 includes a display device 2 that displays a stereoscopic video and glasses 3 worn by a viewer 13 (user) who watches the stereoscopic video.

The display device 2 includes a frame portion 2a, a display portion 2b, and a support portion 2c. In the present embodiment, a liquid crystal display panel is used as the display portion 2b of the display device 2. However, the present invention is not limited to this. For example, a PDP, a CRT, an organic EL display device (a display panel including an organic light emitting layer), or the like can be used.

In the present embodiment, the left-eye image and the right-eye image having binocular parallax are displayed on the display device 2 and the display device 2 alternately displaying, for example, every 1/2 frame. The shutter glasses-type stereoscopic display device 1 including the glasses 3 having the left-eye shutter and the right-eye shutter that are alternately driven in synchronization with each image will be described as an example. The present invention is not limited to this, and the present invention can also be applied to, for example, a red and blue glasses type or polarized glasses type stereoscopic display device.

That is, the shutter glasses method used in the present embodiment simultaneously displays the left-eye image and the right-eye image at the normal double speed (double frequency) on the display device 2 side. When the synchronization signal is transmitted to the glasses 3 and the left-eye image is displayed on the display unit 2b of the display device 2, the viewer 13 views the left-eye image only with the left eye through the glasses 3. On the other hand, when the right-eye image is displayed on the display unit 2b of the display device 2, the spectacles 3 allow the viewer 13 to see the right-eye image only with the right eye. It has become.

Therefore, the viewer 13 has a three-dimensional feeling that protrudes from the back side of the display surface of the display unit 2b or the display surface from the image displayed on the display unit 2b of the display device 2 viewed through the glasses 3. You will feel it.

As shown in FIG. 2, a synchronization signal transmission unit 4 for synchronizing with the glasses 3 is provided in a lower region of the frame unit 2 a that is a peripheral region of the display unit 2 b of the display device 2. Specifically, an infrared receiving unit (information receiving unit) 6b described later is provided.

In addition, ultrasonic receiving units 12a, 12b, 12c, and 12d, which will be described in detail later, are also provided in the left, right, upper, and lower regions of the frame unit 2a, respectively.

FIG. 2 is an example of the case where the display device 2 is a television receiver. However, as shown in FIG. 3, the present invention provides a cable from a recording medium playback device 16 such as a Blu-ray player or a DVD player. The present invention can also be applied to a case where an image signal is supplied to the monitor 15 via the display 17.

FIG. 3 is a diagram showing a schematic configuration of the stereoscopic display device 1a.

As shown in the figure, the stereoscopic display device 1a includes a display device that displays a stereoscopic video and glasses 18 that are worn by the viewer 13 who views the stereoscopic video.

The display device that displays the stereoscopic video includes a monitor 15, a recording medium playback device 16, and a cable 17, and in this case, a synchronization signal transmission unit 4a for synchronizing with the glasses 18, Specifically, an infrared receiving unit (infrared light receiving unit) 6c described later is provided on the recording medium playback device 16 side.

Hereinafter, in the present embodiment, the configuration of the stereoscopic display device 1 including the display device 2 illustrated in FIG. 2 will be described in more detail.

FIG. 1 is a diagram illustrating a schematic configuration of a stereoscopic display device 1 including a display device 2 that displays a stereoscopic video and glasses 3 worn by a viewer who views the stereoscopic video.

Since the configuration of the display device 2 has already been described above, the configuration of the glasses 3 will be described here.

As shown in FIG. 1, the spectacles 3 include a lens portion and a frame portion, and the lens portion includes a left-eye shutter portion 3a and a right-eye shutter portion 3b. The frame portion includes a lens support portion, a nose pad 3c, and a temple 3d.

In the present embodiment, polymer dispersed liquid crystal elements (light scattering liquid crystal elements) are used as the left-eye shutter unit 3a and the right-eye shutter unit 3b.

When a voltage is applied to the polymer dispersed liquid crystal layer provided in the polymer dispersed liquid crystal element, the polymer dispersed liquid crystal layer transmits light, while the polymer dispersed liquid crystal layer When no voltage is applied, the polymer dispersed liquid crystal layer scatters light.

Therefore, the glasses 3 receive the synchronization signal by the synchronization signal receiving unit 5 provided in the nose pad 3c portion, and based on this signal, drive the shutter unit driving circuit (not shown) to A voltage is applied or not applied to the liquid crystal layer at a constant period.

That is, a predetermined voltage is alternately applied to each of the polymer dispersed liquid crystal elements in accordance with a cycle in which the left-eye image and the right-eye image are alternately displayed at a constant cycle on the display unit 2b of the display device 2. To be applied.

In the present embodiment, the synchronization signal receiving unit 5 is configured to receive infrared rays encoded with the synchronization signal from the synchronization signal transmitting unit 4 provided in the display device 2. There is no limit.

As described above, in the glasses 3, since the polymer-dispersed liquid crystal element is used as the left-eye shutter unit 3a and the right-eye shutter unit 3b, a liquid crystal shutter that includes a polarizing plate and uses polarized light is used. Compared to the case, the transmittance during transmission can be greatly improved, and a brighter stereoscopic display device 1 can be realized.

As shown in FIG. 1, an infrared transmitter 6a (information transmitter), a brightness sensor 9, and an acceleration sensor 10 are provided on the temple 3d side of the glasses 3 on the left ear of the viewer. On the other side of the vine 3d (the portion covering the right ear of the viewer), there are provided an attachment detection unit 7, a control unit 8, and a power supply unit (not shown).

Further, in the vicinity of the nose pad 3c portion of the glasses 3, a synchronization signal receiving unit 5 and an ultrasonic wave transmitting unit 11 described later in detail are provided.

It should be noted that the relative arrangement of the respective members in the glasses 3 is merely an example, and the present invention is not limited to this.

In the present embodiment, as an information transmission unit that transmits information related to the usage state of the glasses 3 to be described later to the display device 2 in detail, an infrared transmission unit 6a that transmits infrared rays is provided on the glasses 3 side, and the display device 2 side is provided. The information receiving unit is provided with an infrared receiving unit 6b that receives the transmitted infrared rays. However, the present invention is not limited to this, and for example, wireless communication such as Bluetooth is used. It can also send and receive. Further, the information may be transmitted and received using wired communication.

Hereinafter, an example of information regarding the usage status of the glasses 3 will be described with reference to FIGS. 4 and 5.

FIG. 4 is a diagram illustrating a state in which information regarding the usage status of the glasses 3 is displayed on the display unit 2 b of the display device 2.

FIG. 5 is a diagram showing a state in which other information related to the usage status of the glasses 3 is displayed on the display unit 2b of the display device 2.

Conventionally, since the wearing time of the glasses (viewing time of the display device) was not informed to the user (viewer) of the glasses, how long did the viewer wear the glasses? Forgetting (whether he / she watched the display device), wearing the glasses (viewing the display device) for a long time, and suffering from eye strain.

On the other hand, according to the stereoscopic display device 1 of the present embodiment, the glasses 3 are provided with a touch sensor as a wearing detection unit that detects whether the viewer wears the glasses 3 and a wearing time measuring unit. Yes.

The measurement of the wearing time of the glasses 3 (viewing time of the display device 2) is started when the touch sensor detects that the viewer wears the glasses 3.

Accordingly, as shown in FIG. 4A, the wearing time of the viewer's glasses 3 obtained from the wearing time measuring unit, that is, the viewing time of the display device 2 is the display unit of the display device 2. 2b is displayed.

Therefore, as in the past, the viewer forgets how long the eyeglasses 3 have been worn (whether the viewer has watched the display device 2), and has worn the eyeglasses 3 for a long time (the display device 2). Can be prevented from falling into eyestrain.

Further, as shown in FIG. 4B, when the wearing time of the spectacles 3 of the viewer obtained from the wearing time measuring unit has passed a predetermined time, the display of the display device 2 is displayed. A warning such as “Turn off TV” can be displayed on the part 2b.

Furthermore, when the wearing time of the spectacles 3 of the viewer obtained from the wearing time measuring unit has passed a predetermined time, the display device 2 can be automatically turned off.

Further, the glasses 3 are provided with a power remaining amount measuring unit for measuring the remaining amount of power for driving the glasses 3, and as shown in FIG. The remaining amount of the power source obtained from the measurement unit is displayed on the display unit 2b of the display device 2.

Accordingly, it is impossible to predict when the power source for driving the glasses will be turned off as in the conventional case, and it is possible to suppress the occurrence of a problem that the display device cannot be suddenly seen when the power source is turned off. .

Further, the eyeglasses 3 are provided with a brightness sensor that measures the brightness of the surroundings in which the eyeglasses 3 are used. As shown in FIG. 4D, the eyeglasses 3 are obtained from the brightness sensor. Information on the brightness data to be displayed is displayed on the display unit 2b of the display device 2.

Therefore, the viewer can appropriately adjust the ambient brightness, the brightness of the display device 2 and the like according to the brightness data displayed on the display device 2.

Further, the spectacles 3 are provided with an acceleration sensor so that the tilt angle of the spectacles 3 can be measured. As shown in FIG. 4E and FIG. When the angle is equal to or larger than a predetermined angle, the angle is displayed on the display unit 2b of the display device 2.

Therefore, a warning is displayed on the display unit 2b of the display device 2 when the viewer can affect the image quality of the stereoscopic display device 1, for example, when the viewer lies down and watches the display device 2. Can be made.

Further, the display device 2 and the glasses 3 according to the present embodiment have an ultrasonic wave reception on the display device 2 side as a position detection unit that detects a relative position between the display unit 2b of the display device 2 and the glasses 3. The ultrasonic transmission unit is provided on the glasses 3 side.

Therefore, information on the relative position of the glasses 3 with respect to the display unit 2b of the display device 2 can be displayed on the display unit 2b of the display device 2.

More specifically, as shown in FIGS. 5A and 5B, the position of the glasses 3 is within a predetermined range (for example, optimal viewing with respect to the display unit 2b of the display device 2). If it is out of the area, a warning can be displayed on the display unit 2b of the display device 2.

Therefore, when the position of the glasses 3 is out of a predetermined range (for example, the optimum viewing area) with respect to the display unit 2b of the display device 2, a warning is displayed on the display device 2, so that the optimum viewing area is selected. It is possible to suppress the occurrence of problems such as screen blurring and eye fatigue, which may occur when viewing the display unit 2b of the display device 2 from a position beyond the limit.

FIG. 6 is a block diagram showing a schematic configuration of the display device 2 and the glasses 3 provided in the stereoscopic display device 1 of the present embodiment.

Hereinafter, each configuration provided in the glasses 3 will be described in detail based on the upper part of FIG.

As shown in the figure, the spectacles 3 are provided with a portable power source (battery) as the power supply unit 20 so that the power is supplied to the wearing detection unit 7 even when the spectacles 3 are in a standby state. It has become.

In this embodiment, in order to prevent wasteful consumption of the power supply unit 20, the wearing detection unit 7 detects that the viewer wears the glasses 3, and this is reported back to the power supply unit 20. After that, the power supply unit 20 supplies power to other than the wearing detection unit 7 in the glasses 3.

(Mounting detection unit and wearing time measurement unit)
In the present embodiment, a touch sensor that determines whether or not the glasses 3 are worn is used as the wearing detection unit 7 based on whether or not the sensor is touched. However, the present invention is not limited to this. It is also possible to use a temperature sensor that determines whether the eyeglasses 3 are worn based on the body temperature, an optical sensor that uses a change in brightness between when the eyeglasses 3 are worn and when not.

Also, the location where the mounting detection unit 7 is provided can be variously changed according to the type of sensor.

For example, in the case of a touch sensor, the sensor can be provided in a nose pad portion that contacts the viewer's nose or a vine portion that contacts the viewer's ear.

In the case of a temperature sensor, for example, the sensor can be provided at a position where the body temperature of the viewer can be detected.

In the case of an optical sensor, for example, the sensor can be provided at a position where the light is blocked by the viewer wearing the glasses 3.

It should be noted that a plurality of sensors provided on the glasses 3 can be provided as the attachment detection unit 7, and a plurality of types of sensors can be used in combination. Thereby, it becomes possible to determine more accurately whether the viewer wears the glasses 3.

In the present embodiment, the wearing time measuring unit 8a provided in the control unit 8 detects the wearing time of the glasses 3 (display device) from when the touch sensor detects that the viewer wears the glasses 3. However, the present invention is not limited to this, and the start point of measurement of the wearing time of the glasses 3 (viewing time of the display device 2) may be set as appropriate.

Further, as shown in the drawing, the data of the wearing time of the glasses 3 (viewing time of the display device 2) obtained by the wearing time measuring unit 8a is sent to the infrared transmitting unit 6a, and the display device from the infrared transmitting unit 6a. 2 is transmitted to the infrared receiving unit 6b provided in FIG.

In the present embodiment, the mounting detection unit 7 (touch sensor) is separately provided. However, the mounting detection unit 7 is not provided, and a button for starting and stopping the measurement of the mounting time measurement unit 8a is provided. You can also.

According to such a configuration, the wearing time of the glasses 3 (viewing time of the display device 2) can be measured by operating (for example, pressing) the button.

Also, the above button can be shared with the power switch of the glasses 3.

With such a configuration, it is possible to avoid forgetting to press the button for starting / stopping the measurement of the wearing time measuring unit 8a, and the wearing time of the glasses 3 (viewing time of the display device 2) can be reliably measured. It becomes possible.

(Remaining power supply measurement unit)
Further, the control unit 8 of the glasses 3 provided in the stereoscopic display device 1 of the present embodiment is provided with a power remaining amount measuring unit 8b that measures the remaining amount of power for driving the glasses 3.

As the power remaining amount measuring unit 8b, a conventional configuration for measuring the remaining amount of power of a portable device such as a mobile phone can be used as it is, so that the description thereof is omitted here.

Also, as shown in the figure, the remaining power data for driving the glasses 3 obtained by the remaining power measuring unit 8b is sent to the infrared transmitter 6a, and the display device 2 is transmitted from the infrared transmitter 6a. Is transmitted to the infrared receiver 6b.

(Brightness sensor and brightness measurement unit)
Further, the glasses 3 provided in the stereoscopic display device 1 of the present embodiment are provided with a brightness sensor 9 and a brightness measuring unit 8c.

In the present embodiment, as the brightness sensor 9, an optical sensor element formed of a photodiode or a phototransistor that passes a different current depending on the intensity of received light is used.

In the present embodiment, as shown in FIG. 1, the brightness sensor 9 is attached to the vine 3d of the glasses 3 that is not easily affected by the viewer or the display unit 2b of the display device 2. Although it is provided on the opposite side of the surface in contact with the viewer and in the area close to the left-eye shutter unit 3a, the present invention is not limited to this.

Further, as shown in FIG. 6, the current value obtained from the brightness sensor 9 is converted into brightness data by the brightness measuring unit 8c, sent to the infrared transmitting unit 6a, and from the infrared transmitting unit 6a. It is transmitted to the infrared receiver 6b provided in the display device 2.

(Acceleration sensor and posture detection unit)
Further, the glasses 3 provided in the stereoscopic display device 1 according to the present embodiment further include an acceleration sensor 10 and an attitude detection unit 8d.

In the present embodiment, the acceleration sensor 10 is used so that the tilt angle of the glasses 3 can be measured. However, the present invention is not limited to this as long as the tilt angle of the glasses 3 can be measured. A tilt sensor (a micro tilt sensor D6BN manufactured by OMRON) using an element and a magnet can also be used.

FIG. 7 is a diagram for explaining the principle by which the inclination angle of the glasses 3 can be detected using the acceleration sensor 10.

FIG. 7A shows a case where the inclination angle of the glasses 3 is 0 degree. In such a case, the acceleration sensor 10 provided in the glasses 3 is downward in the figure indicated by the solid line. Thus, the sensor output (dotted line) of the acceleration sensor 10 is 1G (1G × sin 90 °), which is the same as gravity 1G.

On the other hand, (b) of FIG. 7 shows a case where the inclination angle of the glasses 3 is 60 degrees. In such a case, the acceleration sensor 10 provided in the glasses 3 is shown by a dotted line in the drawing. The acceleration in the lower left direction will be measured.

When the inclination angle of the glasses 3 is 60 degrees, the angle formed by the direction of gravity, which is a solid line in the figure, and the direction of acceleration measured by the acceleration sensor 10 is 60 degrees, and the acceleration measured by the acceleration sensor 10 and the sensor output Is 1 G × sin 30 °.

Although illustration is omitted, when the inclination angle of the glasses 3 is 45 degrees, the sensor output is 1 G × sin 45 °, and when the inclination angle of the glasses 3 is 30 degrees, the sensor output is 1 G × sin 60 °.

As described above, in the acceleration sensor 10 provided in the glasses 3, the sensor output value is 1 G × sin (90 ° −the tilt angle of the glasses 3). Therefore, the tilt angle of the glasses 3 is determined from the sensor output value. It can be detected.

As shown in FIG. 6, the sensor output value obtained by the acceleration sensor 10 is sent to the posture detection unit 8d, and the posture detection unit 8d has the sensor output value equal to or less than a predetermined value (the inclination of the glasses 3). When the angle is equal to or greater than a predetermined value, predetermined data is sent to the infrared transmitter 6a, and the predetermined data is transmitted from the infrared transmitter 6a to the infrared receiver 6b provided in the display device 2. It has become.

As shown in FIG. 6, in the present embodiment, the control unit 8 includes a mounting time measurement unit 8a, a power remaining amount measurement unit 8b, a brightness measurement unit 8c, and an attitude detection unit 8d. Furthermore, although it also has a role to control the ultrasonic wave transmitting unit 11, it is not limited to this, and the wearing time measuring unit 8a, the remaining power measuring unit 8b, the brightness measuring unit 8c, and the posture The detection unit 8d and the part that controls the ultrasonic transmission unit 11 can all be provided separately.

(Ultrasonic transmitter)
In the display device 2 and the glasses 3 of the present embodiment, the ultrasonic wave receiving unit 12a is provided on the display device 2 side as a position detection unit that detects the relative position between the display unit 2b of the display device 2 and the glasses 3. 12b, 12c, and 12d are provided with the ultrasonic transmission unit 11 on the glasses 3 side, respectively.

As shown in FIG. 6, in the ultrasonic transmission unit 11, an interval of transmitting ultrasonic waves is controlled by the control unit 8.

In the present embodiment, the eyeglasses 3 wearing time (viewing time of the display device 2) obtained by the wearing time measuring unit 8a provided in the control unit 8 at predetermined intervals (for example, every 1 minute), Ultrasonic waves are transmitted from the ultrasonic transmission unit 11.

Therefore, the relative position between the display unit 2b of the display device 2 and the glasses 3 can be detected at predetermined time intervals.

(Other configurations)
As shown in FIG. 6, the glasses 3 are further provided with a synchronization signal receiving unit 5 and a shutter unit driving circuit 19, and the synchronization signal receiving unit 5 receives the synchronization signal. Based on the signal, the shutter drive circuit 19 is driven to apply or not apply a voltage to the polymer dispersed liquid crystal layer provided in the left eye shutter and the right eye shutter in the glasses 3 at a constant period. It has become.

Meanwhile, in the following, each configuration provided in the display device 2 will be described in detail based on the lower part of FIG.

(Configuration of display device)
As shown in the figure, information about the usage status of the glasses 3 is transmitted from an infrared transmitter 6 a that transmits infrared rays provided on the glasses 3 side to an infrared receiver 6 b provided on the display device 2 side.

Similarly to the glasses 3 side, the power supply unit 21 is provided on the display device 2 side, and when the display device 2 is a portable display device, a portable power source (battery) is used as the power supply unit 21. In this case, similarly to the glasses 3 side, a power remaining amount measuring unit is provided, and the remaining amount of power on the display device 2 side can also be displayed on the display unit 2b of the display device 2.

Since the display device 2 in the present embodiment is a large-sized television receiver, no power remaining amount measuring unit is separately provided on the display device 2 side.

Further, even when the display device 2 is in a standby state, power is supplied to the infrared receiving unit 6b and the control unit 22.

Therefore, when the wearing detection unit 7 provided on the side of the glasses 3 detects that the viewer wears the glasses 3, a specific signal is transmitted via the infrared transmission unit 6a, the infrared reception unit 6b, and the control unit 22. The power supply unit 21 supplies power to other than the infrared receiving unit 6 b and the control unit 22 in the display device 2.

As described above, in the present embodiment, when the wearing detector 7 provided on the side of the glasses 3 detects that the viewer wears the glasses 3, the display device 2 and the glasses 3 are on standby. From the state to the on state.

As shown in the figure, the display unit 2b of the display device 2 is driven by a display unit driving circuit 22a provided in the control unit 22 to perform display.

Although not shown, the tuner unit provided in the display device 2 receives a television broadcast and supplies an image signal to the display unit driving circuit 22a.

Further, the information on the usage status of the glasses 3 transmitted to the infrared receiving unit 6b is sent to the information reporting unit 22b provided in the control unit 22, and for example, an image signal of an image as shown in FIG. This is supplied to the unit drive circuit 22a.

On the display device 2 side, four ultrasonic receiving units 12a, 12b, 12c, and 12d for receiving ultrasonic waves transmitted from the ultrasonic transmitting unit 11 provided on the glasses 3 side are provided. The data relating to the ultrasonic wave reception timing, which will be described in detail later, obtained by the ultrasonic receivers 12a, 12b, 12c, and 12d is sent to the distance calculation processor units 22c and 22d provided in the control unit 22, and is displayed on the display device 2. The relative position between the display unit 2b and the glasses 3 is calculated.

Then, the calculated data on the relative position between the display unit 2b of the display device 2 and the glasses 3 is sent to the information reporting unit 22b. For example, an image signal of an image as shown in FIG. This is supplied to the unit drive circuit 22a.

Further, as shown in the drawing, a timing signal for switching between the left-eye image and the right-eye image in the display unit 2b of the display device 2 is sent from the display unit driving circuit 22a to the synchronization signal transmission unit 4. This timing signal is transmitted from the synchronization signal transmission unit 4 to the synchronization signal reception unit 5.

Hereinafter, the ultrasonic transmission unit 11 and the ultrasonic reception units 12a, 12b, 12c, and 12d will be described in more detail with reference to FIG.

In the left, right, upper, and lower regions of the frame unit 2a of the display device 2, one ultrasonic receiving unit 12a, 12b, 12c, and 12d is provided.

On the other hand, one ultrasonic wave transmission unit 11 is provided on the glasses 3 side.

As shown in FIG. 8, the ultrasonic transmission unit 11 includes an ultrasonic transmission circuit 23 and transmitters 24, and the number of transmitters 24 may be increased as necessary.

The ultrasonic receivers 12a, 12b, 12c, and 12d include receivers 25a, 25b, 25c, and 25d, ultrasonic receiver circuits 26a, 26b, 26c, and 26d, and pulse counters (clock pulse counters) 27a and 27b. -27c and 27d are provided one by one.

Then, from the ultrasonic wave receiving units 12a and 12b provided in the left and right regions of the frame unit 2a of the display device 2 to the distance calculation processor unit 22c, a pulse counter is received until the receivers 25a and 25b receive the ultrasonic waves. The number of clocks (counter number) counted by 27a and 27b is sent.

On the other hand, from the ultrasonic wave receiving units 12c and 12d provided in the upper and lower regions of the frame unit 2a of the display device 2 to the distance calculation processor unit 22d, the pulse counter 27c is received until the receivers 25c and 25d receive the ultrasonic waves. -The number of clocks counted by 27d is sent.

In the present embodiment, the configuration is such that the ultrasonic transmitter 11 is provided on the glasses 3 side, and the ultrasonic receivers 12a, 12b, 12c, and 12d and the distance calculation processor units 22c and 22d are provided on the display device 2 side. However, the present invention is not limited to this, and the ultrasonic transmission unit 11 is provided on the display device 2 side, and the ultrasonic reception units 12 a, 12 b, 12 c, and 12 d and the distance calculation processor units 22 c and 22 d are connected to the glasses 3. The relative position between the display unit 2b of the display device 2 and the glasses 3 may be calculated on the glasses 3 side and transmitted to the display device 2 side.

FIG. 9 is a diagram for explaining calculation of the number of clocks sent from the ultrasonic wave receiving units 12a and 12b provided in the left and right regions of the frame unit 2a of the display device 2 to the distance calculation processor unit 22c. It is.

In this embodiment, since an ultrasonic wave having a sound speed of 340 m / s is used, the clock shown in FIG. 9 has a pulse frequency of 34.5 KHz, and the clock (clock) falls. The time from one to the next fall is 2.9 × 10 ⁻⁵ s.

The number of clocks until the receiver 25b provided in the ultrasonic receiver 12b provided in the right region of the frame 2a of the display device 2 receives the ultrasonic wave is 100 (right in FIG. 9). On the other hand, the number of clocks until the receiver 25a included in the ultrasonic receiver 12a provided in the left region of the frame 2a of the display device 2 receives the ultrasonic wave is 104 (FIG. 9). Left).

Based on the number of clocks, the distance calculation processor unit 22c transmits the ultrasonic wave from the ultrasonic wave transmission unit 11 provided in the glasses 3, and then receives the ultrasonic wave received in the ultrasonic wave reception unit 12b. The time until the device 25b receives the ultrasonic wave (2.9 × 10 ⁻⁵ × 100 s) and the time until the receiver 25a included in the ultrasonic wave receiving unit 12a receives the ultrasonic wave (2. 9 × 10 ⁻⁵ × 104 s), and by applying the sound speed of 340 m / s to each of the above times, the distance 2.9 × 10 ⁻⁵ × 100 × 340 m between the glasses 3 and the ultrasonic receiver 12b is obtained. (98.6 cm) and the distance 2.9 × 10 ⁻⁵ × 104 × 340 m (102.5 cm) between the glasses 3 and the ultrasonic wave receiving unit 12a can be obtained.

Note that in this embodiment, the reason why ultrasonic waves are used is that when infrared light or the like is used, the speed of light is as fast as 3.0 × 10 ⁸ m / s, and thus a clock having a pulse frequency of 3 GHz. This is because even if (clock) is used, distance measurement can be performed only with an accuracy of 10 cm.

Hereinafter, based on FIGS. 10, 11 and 12, the position of the glasses 3 with respect to the display surface in the display unit 2b of the display device 2 is calculated, and the position of the glasses 3 with respect to the display surface is within a predetermined range (for example, A method for determining whether or not it is out of the optimal viewing area will be described.

FIG. 10 is a diagram for explaining a method of calculating the position of the glasses 3 in the left-right direction with respect to the display surface in the display unit 2b of the display device 2.

The distance from the ultrasonic transmission unit 11 provided in the glasses 3 to the ultrasonic reception unit 12a provided in the display device 2 is a, and the distance from the ultrasonic transmission unit 11 provided in the glasses 3 to the ultrasonic device provided in the display device 2 is set. The distance to the sound wave receiving unit 12b is b, and the distance between the ultrasonic wave receiving unit 12a and the ultrasonic wave receiving unit 12b provided in the display device 2 is c.

As shown in the figure, in the present embodiment, the ultrasonic receiving unit 12a and the ultrasonic receiving unit 12b are displayed on the display device 2 in the left and right regions of the frame unit 2a of the display device 2. Although provided at positions corresponding to approximately half of the width of the display surface in the height direction of the portion 2b, the present invention is not limited to this.

In consideration of the ease of calculation when calculating the horizontal position of the glasses 3 with respect to the display surface of the display unit 2b of the display device 2, the ultrasonic receiving unit 12a and the ultrasonic receiving unit 12b are It is preferable that they are provided at the same height.

The point P is an intermediate point between the ultrasonic receiving unit 12a and the ultrasonic receiving unit 12b, and the distance between the point P and the ultrasonic receiving unit 12a and the distance between the point P and the ultrasonic receiving unit 12b are as follows. Both are 1 / 2c.

Then, the dotted line in the figure passing through the point P is perpendicular to the line connecting the ultrasonic receiving unit 12a and the ultrasonic receiving unit 12b whose distance is c, and the ultrasonic transmitting unit 11 and the ultrasonic receiving unit 12a It is assumed that it is drawn on the same plane as a triangle formed by a line connecting the sound wave receiving unit 12b.

In the triangle composed of the distance a and distance b that can be obtained by the distance calculation processor unit 22c and the distance c that is the design value, the angle A in the figure can be obtained using the following (Equation 1).

COSA = (a ² + c ² −b ² ) / 2ac (Formula 1)
And in the triangle which consists of the said angle A, the distance 1 / 2c of the point P and the ultrasonic receiving part 12a, and the distance a, the distance d can be calculated | required using the following (Formula 2).

d = (a ² + 1 / 4c ² -ac × COSA) ^1/2 (Formula 2)
Then, in the triangle composed of the distance d, the distance 1 / 2c between the point P and the ultrasonic wave receiving unit 12b, and the distance b, the angle B can be obtained using the following (formula 3).

COSB = (d ² + 1 / 4c ² −b ² ) / ac (formula 3)
Then, by obtaining 90 ° -B, it is possible to obtain the angle formed by the dotted line in the figure passing through the point P described above and the straight line drawn through the point P from the ultrasonic transmission unit 11.

By obtaining the above 90 ° -B, it is possible to determine whether the left-right position of the glasses 3 with respect to the display surface of the display unit 2b of the display device 2 is out of a predetermined range (an angle indicating the optimum viewing area). .

In the above, the case where distance a> distance b is described as an example. However, when distance b> distance a, B−90 ° may be obtained.

In addition, the method of calculating | requiring the angle | corner made by the dotted line in the figure which passes the point P mentioned above and the straight line drawn so that it may pass the said point P from the ultrasonic transmission part 11 is not limited to this.

FIG. 11 is a diagram for explaining a method of calculating the vertical position of the glasses 3 with respect to the display surface in the display unit 2b of the display device 2.

The distance from the ultrasonic transmission unit 11 provided in the glasses 3 to the ultrasonic reception unit 12c provided in the display device 2 is a, and the distance from the ultrasonic transmission unit 11 provided in the glasses 3 to the ultrasonic device provided in the display device 2 is set. The distance to the sound wave receiving unit 12d is b, and the distance between the ultrasonic wave receiving unit 12c provided in the display device 2 and the ultrasonic wave receiving unit 12d is c.

As shown in the figure, in the present embodiment, the ultrasonic receiving unit 12c and the ultrasonic receiving unit 12d are the display unit of the display device 2 in the upper and lower regions of the frame unit 2a of the display device 2. Although it is provided at a position corresponding to approximately half of the width in the left-right direction of the display surface in 2b, it is not limited to this.

In consideration of the ease of calculation in calculating the vertical position of the glasses 3 with respect to the display surface of the display unit 2b of the display device 2, the ultrasonic receiving unit 12c and the ultrasonic receiving unit 12d are The display unit 2b of the display device 2 is preferably provided at a location corresponding to approximately half of the width in the left-right direction of the display surface.

The point P is an intermediate point between the ultrasonic receiver 12c and the ultrasonic receiver 12d, and the distance between the point P and the ultrasonic receiver 12c and the distance between the point P and the ultrasonic receiver 12d are as follows. Both are 1 / 2c.

Then, the dotted line in the drawing passing through the point P is perpendicular to the line connecting the ultrasonic receiving unit 12c and the ultrasonic receiving unit 12d whose distance is c, and the ultrasonic transmitting unit 11 and the ultrasonic receiving unit 12c It is assumed that it is drawn on the same plane as the triangle formed by the line connecting the sound wave receiving unit 12d.

In the triangle composed of the distance a and the distance b that can be obtained by the distance calculation processor unit 22d and the distance c that is the design value, the angle A in the figure can be obtained using the following (Equation 4).

COSA = (a ² + c ² −b ² ) / 2ac (Formula 4)
And in the triangle which consists of the said angle A, the distance 1 / 2c of the point P and the ultrasonic receiving part 12c, and the distance a, the distance d can be calculated | required using the following (Formula 5).

d = (a ² + 1 / 4c ² -ac × COSA) ^1/2 (Formula 5)
Then, in the triangle composed of the distance d, the distance 1 / 2c between the point P and the ultrasonic wave receiving unit 12c, and the distance a, the angle B can be obtained using the following (formula 6).

COSB = (d ² + 1 / 4c ² −a ² ) / dc (formula 6)
Then, by obtaining 90 ° -B, it is possible to obtain the angle formed by the dotted line in the figure passing through the point P described above and the straight line drawn through the point P from the ultrasonic transmission unit 11.

By obtaining the above 90 ° -B, it is possible to determine whether the vertical position of the glasses 3 with respect to the display surface in the display unit 2b of the display device 2 is out of a predetermined range (an angle indicating the optimum viewing area). .

In the above, the case where distance b> distance a has been described as an example, but when distance a> distance b, B-90 ° may be obtained.

In addition, the method of calculating | requiring the angle | corner made by the dotted line in the figure which passes the point P mentioned above and the straight line drawn so that it may pass the said point P from the ultrasonic transmission part 11 is not limited to this.

FIG. 12 is a diagram showing an optimum viewing area of the viewer 13 wearing the glasses 3 on the display surface of the display unit 2b of the display device 2. FIG.

The optimum viewing area varies depending on the type of the display device 2, but in the case of the liquid crystal display panel used in the present embodiment, it is approximately 45 degrees in each of the left and right directions as shown in the figure.

Note that the setting of the optimum viewing area, that is, the optimum viewing angle range is merely an example, and it may be set as appropriate within a range that does not cause problems such as screen blurring and eye fatigue.

Although not shown, in the present embodiment, the setting of the optimum viewing angle range in the vertical direction is the same as the optimum viewing angle range in the horizontal direction.

FIG. 13 is a diagram illustrating the display device 2 provided with a rotation unit that moves the display surface so that the position of the glasses 3 with respect to the display surface in the display unit 2b of the display device 2 is within the predetermined range. .

As shown in the figure, the support portion 2d includes a lower support 28 that connects the display device 2 and the worm wheel 29, a worm wheel 29, and a worm gear 30 (rotating portion).

According to the said structure, based on the data from the distance calculation processor part 22c, the worm gear 30 is controlled and the position of the glasses 3 with respect to the display surface in the display part 2b of the display apparatus 2 is in the said predetermined range. The display surface can be rotated in the left-right direction. That is, the display surface can be rotated in the left-right direction like a rotary table.

Therefore, according to such a configuration, instead of displaying information on the optimal viewing area on the display unit 2b of the display device 2 as shown in FIG. The display surface can be rotated in the left-right direction so that is within the predetermined range.

Although not shown in the figure, for example, the height of the lower support 28 can be changed by the worm gear 30 in the vertical direction, and the glasses 3 with respect to the display surface of the display unit 2b of the display device 2 can also be changed in the vertical direction. The display surface can be moved so that the position is within the predetermined range.

[Embodiment 2]
Next, a second embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the configuration of the position detection unit that detects the relative position between the display unit 2b of the display device 2 and the glasses 3 is different from that of the first embodiment, and the other configurations are not described. This is as described in the first embodiment. For convenience of explanation, members having the same functions as those shown in the drawings of the first embodiment are given the same reference numerals, and descriptions thereof are omitted.

(A) of FIG. 14 is a figure which shows the structure of the display apparatus 2 provided with the slit-type infrared light-receiving part as a position detection part.

Further, as illustrated in FIG. 14B, the lower support 28 a provided in the support unit 2 e of the display device 2 has infrared rays transmitted from the infrared transmission unit 6 a provided in the glasses 3. Infrared light receiving portions 31a and 31b including photosensors for receiving light are provided.

Then, infrared light incident from the right direction in the figure cannot be received by the infrared light receiving unit 31a, and infrared light incident from the left direction in the figure cannot be received by the infrared light receiving unit 31b. A threshold 32 is formed between the infrared light receiving part 31a and the infrared light receiving part 31b.

In addition, a light-shielding portion (shielding portion) 33 having a relatively large slit in the lower direction in the drawing and a relatively small slit in each of the left and right directions in the drawing is infrared light-receiving portions 31a and 31b. It is formed so as to cover.

According to the above configuration, the amount of infrared light incident from the large slit (corresponding to the optimum viewing area) formed in the downward direction in the figure is the largest, and the amount of light received by the infrared light receiving portions 31a and 31b is also the largest. large.

And if it deviates from the optimal viewing area, the amount of light received by the infrared light receivers 31a and 31b is almost lost, and further, when it deviates in the left-right direction, a small amount of infrared light is incident from the small slit, and the infrared light receiver. Light is received by either one of 31a and 31b.

Therefore, according to the above configuration, the viewer can be notified that the position of the glasses 3 is deviated from the optimum viewing area in two stages.

Note that the amount of light received by the infrared light receivers 31a and 31b when the position of the glasses 3 is in the optimum viewing area is different from the amount of light received by the infrared light receivers 31a and 31b when the position of the glasses 3 is outside the optimum viewing area. If there is, the position and number of the infrared light receiving portions 31a and 31b and the number of slits formed in the light shielding portion 33 are not particularly limited. For example, the infrared light receiving portion in the case where the position of the glasses 3 is in the optimum viewing area. The received light amount may be smaller than the received light amount of the infrared light receiving unit when the position of the glasses 3 is outside the optimum viewing area.

In addition, according to the said structure, although the relative position of the display part 2b of the display apparatus 2 and the spectacles 3 is detected using infrared light, it is not limited to this, For example, an ultrasonic wave etc. are used. Thus, the relative position between the display unit 2b of the display device 2 and the glasses 3 can be detected.

As shown in FIG. 13, the display surface can be rotated in the left-right direction like a rotary table, and the rotation can be stopped at the point where the amount of light received by the infrared light receiving portions 31 a and 31 b is peak.

(A) of FIG. 15 is a figure which shows the structure of the display apparatus 2 provided with the infrared light-receiving part of the peak search system.

Further, as shown in FIG. 15B, the lower support 28b provided in the support 2f of the display device 2 is provided with an infrared transmitter (infrared light emitter) provided in the glasses 3. An infrared light receiving unit 34 including a photosensor for receiving infrared light transmitted from 6a is provided.

The left side of the infrared light receiving unit 34 in the figure is shielded by the light shielding unit 35a, and the right side of the infrared light receiving unit 34 in the figure is shielded by the light shielding unit 35b.

In addition, since no light shielding portion is formed in the optimum viewing area direction (downward in the figure), the amount of light received by the infrared light receiving unit 34 when the position of the glasses 3 is in the optimum viewing area is the position of the glasses 3. Is greater than the amount of light received by the infrared light receiving unit 34 when it is outside the optimum viewing area.

That is, the infrared light receiving unit 34 is surrounded by a hood (circular tube) having an opening in the optimum viewing area direction (downward in the figure).

Also in this configuration, the relative position between the display unit 2b of the display device 2 and the glasses 3 can be detected using ultrasonic waves or the like instead of infrared light.

Further, as shown in FIG. 13, the display surface can be rotated in the left-right direction like a rotary table, and the rotation can be stopped at the point where the amount of light received by the infrared light receiving unit 34 is peak.

(A) of FIG. 16 is a figure which shows the structure of the display apparatus 2 provided with the infrared rays light-receiving part of another slit system as a position detection part.

Further, as illustrated in FIG. 16B, the lower support 28 c provided in the support unit 2 g of the display device 2 has infrared rays transmitted from the infrared transmission unit 6 a provided in the glasses 3. A plurality (three) of infrared light receivers 36a, 36b, and 36c each including a photosensor that receives light is provided.

As shown in the drawing, the light shielding portion 37 is provided with three slits for providing the three infrared light receiving portions 36a, 36b, and 36c.

The slit provided with an opening in the lower direction in the figure has the largest slit size, and the two slits provided with openings in the lower left direction and the lower right direction in the figure are infrared rays. It is provided smaller than the slit provided with the light receiving part 36a.

The downward direction in the figure is the optimum viewing area, and when the position of the glasses 3 is in the optimum viewing area, the amount of light received by the infrared light receiving unit 36a is the largest, and the position of the glasses 3 is outside the optimum viewing area. In this case, the amount of light received by the infrared light receiving unit 36a decreases, and the amount of light received by the infrared light receiving units 36b and 36c increases.

Therefore, it is possible to determine whether or not the position of the glasses 3 is in the optimum viewing area by comparing the received light amounts of the infrared light receiving units 36a, 36b, and 36c with each other.

Even in this configuration, the relative position between the display unit 2b of the display device 2 and the glasses 3 can be detected using ultrasonic waves or the like instead of infrared light.

Further, as shown in FIG. 13, the display surface is configured to rotate in the left-right direction like a rotary table, and the light receiving amount of the infrared light receiving unit 36 a (the receiving amount in the case of an ultrasonic receiving unit) is a peak. The rotation can also be stopped with.

[Embodiment 3]
Next, a third embodiment of the present invention will be described with reference to FIG. In the present embodiment, the configuration of the position detection unit that detects the relative position between the display unit 2b of the display device 2 and the glasses 3 is different from those in the first and second embodiments. The configuration is as described in the first embodiment. For convenience of explanation, members having the same functions as those shown in the drawings of the first embodiment are given the same reference numerals, and descriptions thereof are omitted.

In FIG. 17, as a position detection unit that detects a relative position between the display unit 2 b of the display device 2 and the glasses 3, the glasses 3 are provided with an imaging unit, and on the display surface side of the display device 2. It is a figure for demonstrating the stereoscopic display apparatus provided with marker 38a * 38b which has the predetermined space | interval imaged by the said imaging part.

FIG. 17A shows a case where the viewer 13 wearing the glasses 3 is located in the center front direction with respect to the display surface of the display unit 2b of such a display device 2. FIG. (B) of FIG. 17 shows a captured image captured by an imaging unit (not shown) provided in the glasses 3 in the case of FIG. 17 (a).

Note that the distance between the center of the marker 38a and the center of the marker 38b on the captured image plane shown in FIG. 17B is 1L.

On the other hand, FIG. 17C shows a perpendicular line from the central point of the display surface of the display unit 2b of the display device 2 and a straight line drawn from the imaging unit of the glasses 3 worn by the viewer 13 to the central point. Is a case where the angle C is 45 degrees in the positive left direction, and FIG. 17D is captured by the imaging unit provided in the glasses 3 in the case of FIG. 17C. The captured image is shown.

Note that the distance between the center of the marker 38a and the center of the marker 38b on the captured image plane shown in FIG. 17D is 1 L / √2.

Therefore, the distance between the center of the marker 38a and the center of the marker 38b on the captured image plane varies depending on the position of the viewer 13 wearing the glasses 3 with respect to the display surface of the display unit 2b of the display device 2. From (Expression 7), the position of the viewer 13 wearing the glasses 3 relative to the display surface of the display unit 2b of the display device 2 can be determined.

Angle C = arcCOS (distance between markers on the captured image plane) (Expression 7)
Also in this configuration, as shown in FIG. 13, the display surface can be rotated in the left-right direction like a rotary table, and the distance between the markers on the captured image surface is a certain value or more. Thus, by rotating the display surface, the position of the glasses 3 relative to the display surface of the display unit 2b of the display device 2 can always be within the optimum viewing area.

In the stereoscopic display device according to the aspect of the invention, the spectacles include a wearing time measuring unit that measures a time during which a user wears the spectacles, and the information is obtained from the wearing time measuring unit. It is the user's wearing time of the glasses, and the wearing time is preferably displayed on the display device.

Conventionally, since the wearing time of the glasses (viewing time of the stereoscopic display device) was not informed to the user of the glasses, how long the user wears the glasses ( Forgetting whether or not to view the stereoscopic display device), wearing the glasses (viewing the stereoscopic display device) for a long time, and causing eye strain.

On the other hand, according to the configuration of the present invention, the spectacles are provided with a wearing time measuring unit that measures a time during which the user wears the spectacles, and the use obtained from the wearing time measuring unit is provided. The wearing time of the person's glasses is displayed on the display device.

Therefore, as in the past, the user forgets how long the user has worn the glasses (viewed the stereoscopic display device) and has worn the glasses for a long time (the three-dimensional (Viewing the display device) and falling into eyestrain can be suppressed.

In the stereoscopic display device of the present invention, the glasses include a wearing time measuring unit that measures a time during which the user wears the glasses, and a wearing detection unit that detects that the user wears the glasses. The information is a wearing time of the user's glasses obtained from the wearing time measurement unit, and the wearing time is measured by the wearing detection unit and the user is wearing the glasses. It is preferable to start from the time when it is detected that the device is mounted, and the mounting time is displayed on the display device.

According to the above configuration, the spectacles include a wearing time measuring unit that measures the time that the user wears the spectacles and a wearing detection unit that detects that the user wears the glasses. It has been.

The measurement of the wearing time of the user's glasses by the wearing time measuring unit is started when the wearing detection unit detects that the user wears the glasses, and the wearing time measuring unit The wearing time measured by the above is displayed on the display device.

Therefore, according to the above configuration, the wearing time of the user's glasses measured by the wearing time measuring unit can be measured with higher accuracy.

In the stereoscopic display device of the present invention, it is preferable that a warning is displayed on the display device when the predetermined time has elapsed.

According to the above configuration, when the user wears the glasses for a predetermined time, a warning is displayed on the display device. Forgets whether he / she wears the glasses (viewed the 3D display device) for a long time, and wears the glasses (viewing the 3D display device) for a long time, resulting in eye strain. This can be suppressed.

In the stereoscopic display device of the present invention, it is preferable that the display device is stopped when the wearing time has passed a predetermined time.

According to the above configuration, when the user wears the glasses for a predetermined time, the driving of the display device is stopped. It is possible to suppress the eye strain caused by wearing the glasses (viewing the stereoscopic display device).

In the stereoscopic display device according to the aspect of the invention, the spectacles include a wearing detection unit that detects that the user wears the spectacles, and the wearing detection unit attaches the spectacles to the user. It is preferable that the information is transmitted from the information transmitting unit to the information receiving unit after detecting this.

According to the above configuration, the one or more pieces of information regarding the usage status of the glasses required when the user wears the glasses is that the wearing detection unit has installed the glasses. After being detected, the information transmitting unit transmits the information to the information receiving unit.

Therefore, when the user does not wear the glasses and cannot normally view the display device, the information is transmitted from the information transmission unit to the information reception unit and displayed on the display device. There is nothing.

In the stereoscopic display device of the present invention, it is preferable that the display device and the glasses are driven when the wearing detection unit detects that the user wears the glasses.

In order to view a stereoscopic image using the stereoscopic display device of the present invention, the user needs to watch a display device that displays the stereoscopic image by wearing glasses for viewing the stereoscopic image.

According to the configuration, when the wearing detection unit detects that the user wears the glasses, the display device and the glasses are driven. Since there is no need to perform a separate operation for driving the display device and the glasses, a stereoscopic display device with improved convenience can be realized.

In the stereoscopic display device according to the aspect of the invention, the glasses include a power remaining amount measuring unit that measures a remaining amount of power for driving the glasses, and the information is obtained from the power remaining amount measuring unit. Preferably, the remaining amount of power is displayed on the display device.

According to the above configuration, the spectacles are provided with the power remaining amount measuring unit that measures the remaining amount of the power source that drives the glasses, and the remaining amount of the power obtained from the power remaining amount measuring unit is It is displayed on the display device.

Accordingly, it is impossible to predict when the power source for driving the glasses will be turned off as in the past, and it is possible to prevent the problem that the stereoscopic display device cannot be suddenly seen when the power source is turned off. be able to.

In the stereoscopic display device of the present invention, the eyeglasses are provided with a brightness sensor that measures the brightness of the surroundings where the eyeglasses are used, and the information is obtained from the brightness sensor. It is preferable that information regarding the brightness data is displayed on the display device.

According to the above configuration, the spectacles are provided with a brightness sensor that measures the brightness of the surroundings where the spectacles are used.

Accordingly, since the brightness data obtained from the brightness sensor is displayed on the display device, the user of the glasses knows the brightness of the surroundings where the glasses are used. be able to.

Therefore, the user of the glasses can appropriately adjust the ambient brightness, the brightness of the display device, and the like according to the brightness data displayed on the display device.

In the stereoscopic display device of the present invention, the spectacles are provided with an inclination sensor, and the information is an inclination angle of the glasses obtained from the inclination sensor, and the inclination angle of the glasses is a predetermined angle or more. In this case, it is preferable that a warning is displayed on the display device.

According to the above configuration, since the tilt angle of the glasses can be known by the tilt sensor, for example, when the user of the glasses lies down and watches the display device, a warning is given to the display device. Can be displayed.

In the stereoscopic display device according to the aspect of the invention, the display device and the glasses include a position detection unit that detects a relative position between the display surface of the display device and the glasses. It is a relative position of the glasses with respect to the display surface of the display device, and information on the relative position of the glasses with respect to the display surface of the display device is preferably displayed on the display device.

According to the above configuration, since the information regarding the relative position of the glasses with respect to the display surface of the display device is displayed on the display device, the position of the user of the glasses is determined from the optimum viewing position. Since the user can be careful so as not to come off, problems such as screen blurring and eye fatigue that can occur when viewing the display device from a position beyond the range of the optimum viewing position occur. Can be suppressed.

In the stereoscopic display device of the present invention, it is preferable that a warning is displayed on the display device when the position of the glasses is out of a predetermined range with respect to the display surface of the display device.

According to the above configuration, when the position of the glasses is out of the predetermined range with respect to the display surface of the display device, a warning is displayed on the display device, so that the range of the optimal viewing position is exceeded. It is possible to suppress the occurrence of problems such as blurring of the screen and eye fatigue that can occur when viewing the display device from a position.

In the stereoscopic display device of the present invention, as the position detection unit, the spectacles are provided with an ultrasonic wave transmitting unit, and the display device receives ultrasonic waves transmitted from the ultrasonic wave transmitting unit. Two ultrasonic receiving units are provided, and the ultrasonic receiving units are provided in the vicinity of both ends in the left-right direction when the user views the display surface of the display device. Each of the ultrasonic receiving units includes a clock pulse counter that counts clock pulses until the ultrasonic receiving unit receives an ultrasonic wave transmitted from the ultrasonic transmitting unit, and the two ultrasonic receiving units are provided. The distance between the parts, the distance between the ultrasonic transmitter and one ultrasonic receiver calculated based on the counter number of the clock pulse counter, and the ultrasonic transmitter and the other ultrasonic receiver. of The position of the glasses with respect to the display surface of the display device is calculated based on the distance of the display device, and if the position of the glasses is out of a predetermined range with respect to the display surface of the display device, the display A warning is preferably displayed on the device.

According to the above configuration, when the user of the glasses sees the display surface and the position of the glasses is out of a predetermined range with respect to the display surface of the display device in the left-right direction, A warning is displayed on the display device.

Therefore, in the left-right direction when the user views the display surface, problems such as screen blurring and eye fatigue that may occur when viewing the display device from a position beyond the range of the optimal viewing position occur. Can be suppressed.

In the stereoscopic display device of the present invention, as the position detection unit, the spectacles are provided with an ultrasonic wave transmitting unit, and the display device receives ultrasonic waves transmitted from the ultrasonic wave transmitting unit. Two ultrasonic receiving units are provided, and the ultrasonic receiving units are provided near both ends in the vertical direction when the user views the display surface of the display device. Each of the ultrasonic receiving units includes a clock pulse counter that counts clock pulses until the ultrasonic receiving unit receives an ultrasonic wave transmitted from the ultrasonic transmitting unit, and the two ultrasonic receiving units are provided. The distance between the parts, the distance between the ultrasonic transmitter and one ultrasonic receiver calculated based on the counter number of the clock pulse counter, and the ultrasonic transmitter and the other ultrasonic receiver. of The position of the glasses with respect to the display surface of the display device is calculated based on the distance of the display device, and if the position of the glasses is out of a predetermined range with respect to the display surface of the display device, the display A warning is preferably displayed on the device.

According to the above configuration, in the vertical direction when the user of the glasses views the display surface, the position of the glasses is out of a predetermined range with respect to the display surface of the display device. A warning is displayed on the display device.

Therefore, in the up-and-down direction when the user views the display surface, problems such as screen blur and eye fatigue that may occur when viewing the display device from a position beyond the range of the optimal viewing position occur. Can be suppressed.

In the stereoscopic display device according to the aspect of the invention, the display device may further include two ultrasonic reception units provided in the vicinity of both ends of the display device in the vertical direction when the user views the display surface. In addition, for each of the ultrasonic receiving units, a clock pulse counter that counts clock pulses until the ultrasonic receiving unit receives an ultrasonic wave transmitted from the ultrasonic transmitting unit is provided. The distance between the ultrasonic wave receiving units, the distance between the ultrasonic wave transmitting unit and one ultrasonic wave receiving unit calculated based on the counter number of the clock pulse counter, and the ultrasonic wave transmitting unit and the other ultrasonic wave receiving unit The position of the glasses with respect to the display surface of the display device is calculated based on the distance to the display unit, and the position of the glasses is out of a predetermined range with respect to the display surface of the display device. In this case they are a warning on the display device is displayed.

According to the above configuration, when the position of the glasses is out of a predetermined range with respect to the display surface of the display device in the vertical and horizontal directions when the user of the glasses views the display surface, A warning is displayed on the display device.

Therefore, in the up / down / left / right directions when the user looks at the display surface, there are problems such as screen blurring or eye fatigue that can occur when viewing the display device from a position beyond the range of the optimal viewing position. It can be suppressed from occurring.

In the stereoscopic display device of the present invention, the spectacles include an infrared light emitting unit as the position detecting unit, and the display device includes infrared light emitted from the infrared light emitting unit. An infrared light receiving portion for receiving light and a light shielding portion for shielding the infrared light, and the red when the position of the glasses is within a predetermined range with respect to the display surface of the display device The red light receiving amount of the external light receiving unit is different from the received light amount of the infrared light receiving unit when the position of the glasses is out of the predetermined range with respect to the display surface of the display device. It is preferable that an external light receiving unit and the light blocking unit are provided.

In the stereoscopic display device of the present invention, as the position detection unit, the spectacles are provided with an ultrasonic wave transmitting unit, and the display device receives ultrasonic waves transmitted from the ultrasonic wave transmitting unit. An ultrasonic receiving unit and a shielding unit that shields the ultrasonic wave are provided, and reception of the ultrasonic receiving unit when the position of the glasses is within a predetermined range with respect to the display surface of the display device The ultrasonic receiving unit and the shielding unit are different in amount from the reception amount of the ultrasonic receiving unit when the position of the glasses is out of the predetermined range with respect to the display surface of the display device. Are preferably provided.

In the stereoscopic display device of the present invention, the spectacles include an infrared light emitting unit as the position detecting unit, and the display device includes infrared light emitted from the infrared light emitting unit. Are provided with a plurality of infrared light receiving portions and a light shielding portion for shielding the infrared light, and the plurality of infrared light receiving portions are different so as to receive infrared light from different directions. One of the plurality of infrared light receiving portions is formed when the position of the glasses is within a predetermined range with respect to the display surface of the display device. However, it is preferable that the infrared light receiving part and the light shielding part are provided so that the amount of light received by other infrared light receiving parts is different.

In the stereoscopic display device of the present invention, as the position detection unit, the spectacles are provided with an ultrasonic wave transmitting unit, and the display device receives ultrasonic waves transmitted from the ultrasonic wave transmitting unit. A plurality of ultrasonic receiving units and a shielding unit for shielding the ultrasonic waves are provided, and the plurality of ultrasonic receiving units are formed in different directions so as to receive ultrasonic waves from different directions, respectively. One of the plurality of ultrasonic reception units is configured such that when the position of the glasses is within a predetermined range with respect to the display surface of the display device, the reception amount of the other ultrasonic reception units is It is preferable that the ultrasonic wave receiving unit and the shielding unit are provided so as to be different from the reception amount.

According to the above configuration, the amount of received infrared light in the infrared light receiving unit is determined by the relative positional relationship between the glasses including the infrared light emitting unit and the display device including the infrared light receiving unit. Therefore, it is possible to detect whether the relative positional relationship is within a predetermined range or out of the predetermined range.

Alternatively, since the amount of ultrasonic waves received by the ultrasonic wave receiving unit differs depending on the relative positional relationship between the glasses equipped with the ultrasonic wave transmitting unit and the display device equipped with the ultrasonic wave receiving unit, the relative It is possible to detect whether the actual positional relationship is within a predetermined range or out of the predetermined range.

Therefore, according to the above configuration, it is possible to suppress the occurrence of problems such as screen blurring and eye fatigue that can occur when the user of the glasses watches the display device from a position beyond the range of the optimum viewing position. can do.

In the stereoscopic display device according to the present invention, as the position detection unit, the glasses include an imaging unit, and a marker having a predetermined interval captured by the imaging unit is provided on the display surface side of the display device. Based on a change in the distance between the markers on the captured image plane captured by the imaging unit according to the relative position of the glasses with respect to the display surface of the display device. If the relative position is calculated and the relative position is out of the predetermined range, a warning is preferably displayed on the display device.

According to the above configuration, the glasses include the imaging unit that can obtain a captured image that can detect a change in the distance between the markers according to the relative position of the glasses with respect to the display surface of the display device. It has been.

Therefore, the relative position is calculated based on the change in the distance between the markers on the captured image plane imaged by the imaging unit, and when the relative position is out of the predetermined range, Since a warning is displayed on the display device, problems such as screen blurring and eye fatigue that can occur when the user of the glasses watches the display device from a position beyond the range of the optimal viewing position occur. Can be suppressed.

In the stereoscopic display device of the present invention, the spectacles are provided with an information transmission unit that transmits one or more pieces of information regarding the usage status of the spectacles to the display device. It is preferable that an information receiving unit for receiving is provided, and the display device displays the detected relative position of the glasses with respect to the detected display surface of the display device and the information.

According to the above configuration, the relative position of the glasses with respect to the detected display surface of the display device and the information can be displayed on the display device.

In the stereoscopic display device according to the aspect of the invention, the display device includes a rotation unit that moves the display surface so that the position of the glasses is within the predetermined range with respect to the display surface of the display device. It is preferable.

According to the above configuration, the display device includes the rotating unit that moves the display surface so that the position of the glasses is within the predetermined range with respect to the display surface of the display device. Therefore, for example, when the user of the glasses exceeds the range of the optimum viewing position, the display surface moves so as to be within the range of the optimum viewing position.

Therefore, it is possible to suppress the occurrence of problems such as screen blurring and eye fatigue that may occur when the user of the glasses watches the display device from a position beyond the range of the optimum viewing position.

The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and can be obtained by appropriately combining technical means disclosed in different embodiments. Embodiments are also included in the technical scope of the present invention.

The present invention can be applied to, for example, a 3D display device including glasses.

DESCRIPTION OF SYMBOLS 1, 1a 3D display apparatus 2 Display apparatus 2a Frame part 2b Display part 2c * 2d * 2e * 2f * 2g Support part 3,18 Glasses 4 * 4 Synchronization signal transmission part 5 Synchronization signal reception part 6a Infrared transmission part (information Transmitter)
6b ・ 6c Infrared receiver (information receiver)
DESCRIPTION OF SYMBOLS 7 Wear detection part 8,22 Control part 8a Wear time measurement part 8b Power supply residual quantity measurement part 8c Brightness measurement part 8d Attitude detection part 9 Brightness sensor 10 Acceleration sensor (tilt sensor)
11 Ultrasonic transmitter (position detector)
12a, 12b, 12c, 12d Ultrasonic wave receiver (position detector)
13 Viewers (users)
20, 21 Power supply unit 22b Information reporting unit 27a / 27b / 27c / 27d Pulse counter 30 Worm gear (rotating unit)
31a / 31b Infrared detector (position detector)
33 Shading part (shielding part)
34 Infrared detector (position detector)
35a / 35b Shading part (shielding part)
36a, 36b, 36c Infrared light receiver (position detector)
37 Shading part (shielding part)
38a / 38b marker

Claims (23)

A display device for displaying stereoscopic images;
A stereoscopic display device comprising glasses for viewing the stereoscopic image,
The spectacles are provided with an information transmission unit that transmits one or more pieces of information on the usage status of the spectacles to the display device,
The display device includes an information receiving unit that receives the information,
A stereoscopic display device, wherein the information is displayed on the display device. The spectacles are provided with a wearing time measuring unit that measures the time that the user is wearing the spectacles,
The information is the wearing time of the user's glasses obtained from the wearing time measuring unit,
The stereoscopic display device according to claim 1, wherein the wearing time is displayed on the display device. The eyeglasses are provided with a wearing time measuring unit that measures the time that the user wears the glasses, and a wearing detection unit that detects that the user wears the glasses,
The information is the wearing time of the user's glasses obtained from the wearing time measuring unit,
The measurement of the wearing time is started when the wearing detection unit detects that the user wears the glasses,
The stereoscopic display device according to claim 1, wherein the wearing time is displayed on the display device. 4. The stereoscopic display device according to claim 2, wherein a warning is displayed on the display device when the wearing time has passed a predetermined time. The stereoscopic display device according to claim 2 or 3, wherein when the wearing time has passed a predetermined time, the driving of the display device is stopped. The eyeglasses are equipped with a wearing detection unit that detects that the user wears the eyeglasses,
The three-dimensional object according to claim 1, wherein the information is transmitted from the information transmission unit to the information reception unit after the wearing detection unit detects that the user wears the glasses. Display device. The stereoscopic display device according to claim 6, wherein the display device and the glasses are driven when the wearing detection unit detects that the user wears the glasses. The spectacles are provided with a power remaining amount measuring unit for measuring the remaining amount of power for driving the spectacles,
The information is the remaining amount of the power source obtained from the power remaining amount measuring unit,
The stereoscopic display device according to any one of claims 1 to 7, wherein a remaining amount of the power source is displayed on the display device. The eyeglasses are equipped with a brightness sensor that measures the brightness of the surroundings where the eyeglasses are used,
The information is brightness data obtained from the brightness sensor,
The stereoscopic display device according to claim 1, wherein information relating to the brightness data is displayed on the display device. The glasses have a tilt sensor,
The information is a tilt angle of the glasses obtained from the tilt sensor,
The stereoscopic display device according to any one of claims 1 to 9, wherein a warning is displayed on the display device when an inclination angle of the glasses is equal to or greater than a predetermined angle. The display device and the glasses include a position detection unit that detects a relative position between the display surface of the display device and the glasses,
The information is a relative position of the glasses with respect to the display surface of the display device,
11. The stereoscopic display device according to claim 1, wherein information regarding a relative position of the glasses with respect to a display surface of the display device is displayed on the display device. A display device for displaying stereoscopic images;
A stereoscopic display device comprising glasses for viewing the stereoscopic image,
The display device and the glasses include a position detection unit that detects a relative position between the display surface of the display device and the glasses,
The position detection unit provided in the display device detects the relative position of the glasses with respect to the display surface of the display device,
The detected relative position of the glasses with respect to the display surface of the display device is displayed on the display device. The stereoscopic display device according to claim 11 or 12, wherein a warning is displayed on the display device when the position of the glasses is out of a predetermined range with respect to the display surface of the display device. . As the position detection unit, the spectacles include an ultrasonic transmission unit, and the display device includes two ultrasonic reception units that receive ultrasonic waves transmitted from the ultrasonic transmission unit. And
The ultrasonic receiving unit is provided in the vicinity of both ends in the left-right direction when the user views the display surface of the display device,
The display device includes a clock pulse counter that counts clock pulses until the ultrasonic reception unit receives ultrasonic waves transmitted from the ultrasonic transmission unit, for each ultrasonic reception unit,
The distance between the two ultrasonic receivers, the distance between the ultrasonic transmitter and one ultrasonic receiver calculated based on the counter number of the clock pulse counter, and the ultrasonic transmitter and the other The position of the glasses with respect to the display surface of the display device is calculated based on the distance from the ultrasonic receiver of the display device, and the position of the glasses deviates from a predetermined range with respect to the display surface of the display device. The 3D display device according to claim 12, wherein a warning is displayed on the display device. As the position detection unit, the spectacles include an ultrasonic transmission unit, and the display device includes two ultrasonic reception units that receive ultrasonic waves transmitted from the ultrasonic transmission unit. And
The ultrasonic receiving unit is provided in the vicinity of both ends in the vertical direction when the user views the display surface of the display device,
The display device includes a clock pulse counter that counts clock pulses until the ultrasonic reception unit receives ultrasonic waves transmitted from the ultrasonic transmission unit, for each ultrasonic reception unit,
The distance between the two ultrasonic receivers, the distance between the ultrasonic transmitter and one ultrasonic receiver calculated based on the counter number of the clock pulse counter, and the ultrasonic transmitter and the other The position of the glasses with respect to the display surface of the display device is calculated based on the distance from the ultrasonic receiver of the display device, and the position of the glasses deviates from a predetermined range with respect to the display surface of the display device. The 3D display device according to claim 12, wherein a warning is displayed on the display device. The display device is further provided with two ultrasonic receivers in the vicinity of both ends of the display device in the vertical direction when the user views the display surface,
A clock pulse counter that counts clock pulses until the ultrasonic receiving unit receives ultrasonic waves transmitted from the ultrasonic transmitting unit is provided for each ultrasonic receiving unit,
The distance between the two ultrasonic receivers, the distance between the ultrasonic transmitter and one ultrasonic receiver calculated based on the number of counters of the clock pulse counter, and the ultrasonic transmitter and the other The position of the glasses with respect to the display surface of the display device is calculated based on the distance from the ultrasonic receiver of the display device, and the position of the glasses deviates from a predetermined range with respect to the display surface of the display device. The stereoscopic display device according to claim 14, wherein a warning is displayed on the display device when the display device is displayed. As the position detection unit, the spectacles include an infrared light emitting unit, and the display device includes an infrared light receiving unit that receives infrared light emitted from the infrared light emitting unit. A light shielding portion for shielding the infrared light,
The amount of received light of the infrared light receiving unit when the position of the glasses is within a predetermined range with respect to the display surface of the display device is the same as the amount of received light of the glasses with respect to the display surface of the display device. The infrared light receiving part and the light shielding part are provided so as to be different from the amount of light received by the infrared light receiving part when outside the predetermined range. 3D display device. As the position detection unit, the glasses include an ultrasonic transmission unit, and the display device receives an ultrasonic reception unit that receives ultrasonic waves transmitted from the ultrasonic transmission unit and the ultrasonic waves. And a shielding part for shielding,
When the position of the glasses is within a predetermined range with respect to the display surface of the display device, the reception amount of the ultrasonic wave receiving unit is the same as the predetermined amount of the glasses with respect to the display surface of the display device. The stereoscopic display device according to claim 12, wherein the ultrasonic receiving unit and the shielding unit are provided so as to be different from a reception amount of the ultrasonic receiving unit when out of range. . As the position detection unit, the spectacles include an infrared light emitting unit, and the display device receives a plurality of infrared light receiving components that receive infrared light emitted from the infrared light emitting unit. Part and a light shielding part for shielding the infrared light,
The plurality of infrared light receiving portions are formed in different directions so as to receive infrared light from different directions,
One of the plurality of infrared light receiving units is configured such that when the position of the glasses is within a predetermined range with respect to the display surface of the display device, the amount of received light is that of another infrared light receiving unit. The stereoscopic display device according to claim 12, wherein the infrared light receiving unit and the light shielding unit are provided so as to be different from the amount of received light. As the position detection unit, the glasses include an ultrasonic transmission unit, and the display device includes a plurality of ultrasonic reception units that receive ultrasonic waves transmitted from the ultrasonic transmission unit and the ultrasonic wave. And a shielding part that shields sound waves,
The plurality of ultrasonic receivers are formed in different directions so as to receive ultrasonic waves from different directions,
One of the plurality of ultrasonic reception units is configured such that when the position of the glasses is within a predetermined range with respect to the display surface of the display device, the reception amount is the reception amount of another ultrasonic reception unit. The stereoscopic display device according to claim 12, wherein the ultrasonic receiving unit and the shielding unit are provided differently from the above. As the position detection unit, the spectacles are provided with an imaging unit, and the display surface side of the display device is provided with a marker having a predetermined interval imaged by the imaging unit,
In accordance with the relative position of the glasses with respect to the display surface of the display device, the relative position is calculated based on the change in the distance between the markers on the captured image surface captured by the imaging unit, The stereoscopic display device according to claim 11, wherein a warning is displayed on the display device when the relative position is out of a predetermined range. The spectacles are provided with an information transmission unit that transmits one or more pieces of information on the usage status of the spectacles to the display device,
The display device includes an information receiving unit that receives the information,
The stereoscopic display device according to claim 12, wherein the display device displays a relative position of the glasses with respect to the detected display surface of the display device and the information. The display device includes a rotation unit that moves the display surface such that the position of the glasses is within the predetermined range with respect to the display surface of the display device. Item 22. The stereoscopic display device according to any one of Items 13 to 21.

Images