JPWO2020059357A1 - Display device, display control method, and display control program - Google Patents

Abstract

A light projecting unit that projects the light of the image so that it can be visually recognized by one eye of the user, a state that blocks the light incident on the other eye of the user from the outside of the own device, and a state that transmits the light. The state of the shielding part that can be switched to and the state of the shielding part, when the light projecting unit is projecting the light of the image, when the light is blocked, and when the projecting unit is not projecting the image A display device including a control unit that controls switching to a state in which light is transmitted.

Description

The present disclosure relates to a display device, a display control method, and a display control program.

Conventionally, as a display device for displaying a three-dimensional image, a display device using an augmented reality (AR) device that displays a state in which an image is superimposed on the real world is known.

As an AR device, a device is known in which a user visually recognizes a state in which a real world and an image are superimposed with one eye. It is known that in this type of AR device, the user is tired due to the so-called binocular struggle. As a technique for reducing user fatigue due to binocular visual field struggle, for example, Republished No. 2005-26819 and Japanese Unexamined Patent Publication No. 2005-195822 describe a predetermined eye of one eye in a spectacle-shaped display device main body. A technique is described in which a display for displaying an image is provided on the side, and a shielding plate for blocking light incident from the outside is fixed to a predetermined side of the other eye.

According to the techniques described in Republishing 2005-26819 and 2005-195822, the other predetermined eye side is always shielded. Therefore, for example, even when there is no need for shielding, the field of view is blocked by the shielding plate, which may rather impose a burden on the user and cause fatigue.

The present disclosure provides a display device, a display control method, and a display control program that can further reduce the burden on the user when visually recognizing a state in which an image is superimposed on the real world with one eye.

The first aspect of the present disclosure is a display device, which is a light projecting unit that projects light of an image so that it can be visually recognized by one eye of the user, and a light projecting unit that projects light of an image from the outside of the own device to the other eye of the user. When the light projecting unit projects the light of the image, the light is blocked depending on the state of the shielding unit that can switch between the state of blocking the incident light and the state of transmitting the light, and the state of the shielding unit. The state includes a control unit that controls switching to a state in which light is transmitted when the light projecting unit does not project an image.

In the second aspect of the present disclosure, in the first aspect, the light projecting unit may directly project an image onto the retina of one eye.

A third aspect of the present disclosure may further include an image forming unit in which the light of the image projected from the light emitting unit is imaged in the first aspect.

A fourth aspect of the present disclosure may further include, in the third aspect, a frame that is in contact with a portion of the user's face and holds a light projecting section, an image imaging section, and a shielding section.

A fifth aspect of the present disclosure is, in the fourth aspect, one light projecting unit, two shielding units corresponding to both eyes of the user, and two image forming units corresponding to both eyes of the user. It may be further provided with two detachable portions, which are provided at positions corresponding to both eyes of the user and allow the light projecting portion to be attached to and detached from the frame.

A sixth aspect of the present disclosure is that in any one of the first to fourth aspects, the light projecting unit is a light projecting unit for the right eye with one eye as the user's right eye, and one eye. Has a light projecting unit for the left eye with the user's left eye, and the shielding unit is a shielding unit for the left eye with the other eye as the user's left eye, and a shielding unit for the right eye with the other eye as the user's right eye. The control unit controls the shielding unit for the left eye so that the light is shielded according to the projection of the image by the projection unit for the right eye, and the projection unit for the left eye emits the image. Depending on the situation, the shielding portion for the right eye may be controlled so that the light is shielded.

A seventh aspect of the present disclosure further includes, in the sixth aspect, a fatigue state determination unit that determines the fatigue state of the user's eyes, and the control unit is fatigued during the light projection of the image by the light projection unit. When the state determination unit determines that the state is in a fatigued state, control may be performed to switch the light projection unit for projecting the light of the image between the light projection unit for the right eye and the light projection unit for the left eye.

The eighth aspect of the present disclosure is any one of the first to seventh aspects, in which one eye may be the dominant eye of the user.

A ninth aspect of the present disclosure may further include a dominant eye determination unit for determining the dominant eye of the user in the eighth aspect.

A tenth aspect of the present disclosure further comprises a reception unit that receives information about the user's dominant eye in the eighth aspect.

In the eleventh aspect of the present disclosure, in the above aspect, the shielding portion is a region visually recognized by the other eye, which corresponds to a region in which the light of the image is projected, in the region visually recognized by the user with one eye. May be shielded.

A twelfth aspect of the present disclosure is a state in which a light projecting unit that projects an image so that it can be visually recognized by one eye of the user and a state that shields light incident on the other eye of the user from the outside of the own device. It is a control method of a display device provided with a shielding portion that can switch between a state in which light is transmitted and a state in which light is transmitted. When the light projecting unit does not project an image in this state, the computer executes control to switch to a state in which light is transmitted.

A thirteenth aspect of the present disclosure is a state in which a light projecting unit that projects an image so that it can be visually recognized by one eye of the user and a state that shields light incident on the other eye of the user from the outside of the own device. It is a control program of a display device provided with a shielding unit that can switch between a state in which light is transmitted and a state in which light is transmitted. In this state, when the light projecting unit does not project an image, the computer is made to execute a process including controlling the switching to a state in which light is transmitted.

Further, in the fourteenth aspect of the present disclosure, a light projecting unit that projects an image in a state that can be visually recognized by one eye of the user and a light incident on the other eye of the user from the outside of the own device are shielded. A display device having a processor having a shielding unit that can switch between a state in which light is transmitted and a state in which light is transmitted, and the processor projects the state of the shielding unit and the light projecting unit projects an image. , When the light projecting unit does not project an image in a state where light is blocked, control is performed to switch to a state in which light is transmitted.

According to the above aspect, the display device, the display control method, and the display control program of the present disclosure can further reduce the burden on the user when visually recognizing the state in which the real world and the image are superimposed with one eye.

It is a perspective view which shows an example of the structure of the display device of an exemplary embodiment. It is a block diagram which shows an example of the structure of the display device of an exemplary embodiment. It is a block diagram which shows an example of the hardware composition of the display device of an exemplary embodiment. It is a flowchart which shows an example of the display control processing executed by the display device of an exemplary embodiment. It is a figure for demonstrating the display control processing of this example embodiment. It is a figure for demonstrating another example of the shielding state by the shielding part of this example embodiment. It is a figure for demonstrating still another example of the shielding state by the shielding part of this example embodiment. It is a perspective view which shows another example of the structure of the display device of an exemplary embodiment. It is a block diagram which shows another example of the structure of the display device of an exemplary embodiment. It is a block diagram which shows still another example of the structure of the display device of an exemplary embodiment.

Hereinafter, examples of embodiments for carrying out the technique of the present disclosure will be described in detail with reference to the drawings.

The configuration of the display device 10 of this exemplary embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view showing an example of the configuration of the display device 10 of this exemplary embodiment. Further, FIG. 2 is a block diagram showing an example of the display device 10. The display device 10 of this exemplary embodiment is a display device that displays AR (Augmented Reality), and is in a state where the real world through the lens 13 and the image projected from the display unit 22 are superimposed. It is a device that is visually displayed by the user. The display device 10 has the shape of eyeglasses including the frame 12 and the lens 13.

As shown in FIGS. 1 and 2, the display device 10 of this exemplary embodiment includes a sensor 15, a control unit 20, a display unit 22, a shielding unit 24, a dominant eye determination unit 26, and a fatigue state determination unit 28. ing.

The sensor 15 is provided at the center of the lens 13, which is a position corresponding to the position between the eyebrows when the display device 10 is worn by the user. In this exemplary embodiment, the sensor 15 detects a three-dimensional shape as an example. Is a possible depth sensor.

The display unit 22 includes a left-eye display unit 40L and a right-eye display unit 40R. The left-eye display unit 40L has a screen 42L and a projector 43L, and the right-eye display unit 40R has a screen 42R and a projector 43R. In other words, the display unit 22 has a pair of screens 42 and a projector 43. In this exemplary embodiment, the screen 42 and the projector 43 are collectively referred to as the "screen 42" and the "projector 43", and when the left and right are distinguished, the "screen 42" and the "projector 43" are used, respectively. After that, symbols (L, R) indicating left and right are added. The screen 42 of this exemplary embodiment is an example of the image imaging unit of the present disclosure, and the projector 43 of this exemplary embodiment is an example of the light projecting unit of the present disclosure.

The projector 43 is housed in a case-shaped attachment / detachment portion 14, and can be attached / detached to / from the frame 12 by the attachment / detachment portion 14. The projector 43 projects the light of the image according to the image data under the control of the control unit 20 toward the screen 42 provided on the lens 13. The screen 42 displays an image by forming an image of the light of the image projected from the projector 43. The image corresponding to the image data projected from the projector 43 may be either a still image or a moving image, and is not limited.

Examples of the screen 42 include a half mirror, a wavelength selection film, a hologram, and the like. Further, examples of the projector 43 include a liquid crystal panel, an organic EL (ElectroLuminescence) panel, and the like.

Further, the shielding portion 24 includes a shielding portion 30L for the left eye and a shielding portion 30R for the right eye. The shielding unit 24 is provided on the lens 13 and shields the light incident on the user's eye from the outside of the display device 10 according to the control of the control unit 20. As an example, the shielding portion 24 of this exemplary embodiment shields the entire portion corresponding to each of the left and right screens 42. Examples of the shielding unit 24 include a liquid crystal shutter, electrochromism, and a variable ND (Neutral Density) filter.

The control unit 20 controls the entire display device 10. Although the details will be described later, as described above, the projection of the light of the image according to the image data from the projector 43 to the screen 42 and the shielding of the light by the shielding unit 24 are controlled. The dominant eye determination unit 26 determines whether the user's dominant eye is the right eye or the left eye. In addition, the fatigue state determination unit 28 determines the fatigue state of the user's eyes.

Next, the hardware configuration of the display device 10 of this exemplary embodiment will be described with reference to FIG. As shown in FIG. 3, the display device 10 includes the above-mentioned sensor 15, display unit 22, and shielding unit 24, as well as a CPU (Central Processing Unit) 50, a memory 51 as a temporary storage area, and a non-volatile storage unit. Includes 52. Further, the display device 10 includes an input unit 54 (not shown in FIG. 1) such as a switch provided in the attachment / detachment unit 14, and an I / F (InterFace) 56 for communicating with an external device by wire or wirelessly. .. The sensor 15, the display unit 22, the shielding unit 24, the CPU 50, the memory 51, the storage unit 52, the input unit 54, and the I / F 56 are connected to the bus 58.

The storage unit 52 is realized by a non-volatile storage medium such as an HDD (Hard Disk Drive), an SSD (Solid State Drive), and a flash memory. The display control program 60 is stored in the storage unit 52 as a storage medium. The CPU 50 reads out the display control program 60 from the storage unit 52, expands the display control program 60 into the memory 51, and executes the expanded display control program 60. When the CPU 50 executes the display control program 60, the CPU 50 functions as a control unit 20, a dominant eye determination unit 26, and a fatigue state determination unit 28.

Next, the operation of the display device 10 of this exemplary embodiment will be described. When the CPU 50 executes the display control program 60, the display control process shown in FIG. 4 is executed. FIG. 4 shows a flowchart showing an example of a flow of display control processing executed by the display device 10 of this exemplary embodiment. Further, FIG. 5 shows an example of a state in which the user visually recognizes through the lens 13 and the screen 42 by executing the display control process of this exemplary embodiment.

As an example, in the display device 10 of the present exemplary embodiment, when a user's instruction to start display is input via the input unit 54, the display control process shown in FIG. 4 is executed. The embodiment is not limited to this embodiment, and may be, for example, a mode in which the display control process is executed when the power supply (not shown) of the display device 10 is turned on. Further, for example, the display control process may be executed when it is detected that the display device 10 is worn by the user. Examples of this case are when it is detected that the user's skin has come into contact with the inside of the frame 12, when it is detected that the frame 12 has been opened, and when the user wears eyeglasses which is the display device 10. For example, when is detected. When performing these detections, various sensors such as an acceleration sensor, a gyro sensor, and a touch sensor may be provided according to each detection.

As in the example shown in FIG. 5, at the time when the present display control process is started, the user is visually recognizing the real world through the lens 13 (screen 42) with both the left and right eyes.

In step S100 of FIG. 4, the dominant eye determination unit 26 executes the dominant eye determination process and determines whether the user's dominant eye is left or right. As an example, the dominant eye determination unit 26 of the present exemplary embodiment determines the dominant eye based on the difference in appearance between the left and right eyes when the user visually recognizes his / her finger. A specific method will be described with reference to FIG. First, as in the example shown in FIG. 5, the left and right projectors 43 of the display unit 22 display the viewing window frame 72 in the center of each of the left and right screens 42. In this case, except for the viewing window frame 72, the user can see the real world through the lens 13. The user raises his or her left or right index finger at a visible position 20 cm to 40 cm in front of the tip of the nose. It is preferable to display the information for guiding the user to raise the index finger on the screen 42, or to present the information by the voice output from the voice output unit when the screen 42 has the voice output unit. Next, the dominant eye determination unit 26 recognizes the position of the index finger raised by the user based on the output result of the sensor 15, which is a depth sensor that acts as a three-dimensional shape recognition sensor. Further, the dominant eye determination unit 26 determines that the position of the index finger is inside the window frame 72, in other words, the position of the index finger is more contained in the viewing window frame 72. In the example shown in FIG. 5, the user's finger 74 fits more in the viewing window frame 72 displayed on the screen 42L than in the viewing window frame 72 displayed on the screen 42R. Therefore, in this case, the dominant eye determination unit 26 determines that the right eye is the dominant eye of the user.

The method by which the dominant eye determination unit 26 determines the dominant eye is not limited to the method of the above-described exemplary embodiment. For example, the CPU 50 may function as a reception unit, and the input unit 54 may be used to receive information about which is the dominant eye of the user himself / herself.

In the next step S102, the control unit 20 determines whether or not the display of the image is instructed. As an example, in the present exemplary embodiment, when a display instruction by the user is input via the input unit 54, the light projection of the image is started. Until the display instruction is input, the determination in step S102 becomes a negative determination, and when the display instruction is input, the determination in step S102 becomes an affirmative determination, and the process proceeds to step S104.

In step S104, the control unit 20 projects light representing an image from the projector 43 on the dominant eye side determined by the dominant eye determination unit 26 in step S100, and causes the screen 42 to display the image. The image data of the image to be displayed may be stored in the storage unit 52 in advance, or may be received from an external device via the I / F 56. Further, for example, when the display device 10 has an image pickup device that captures an image pickup device that captures the real world in a range that is at least partially similar to the range of the real world that the user visually recognizes, the image data of the captured image captured by the image pickup device. May be used.

In the next step S106, the control unit 20 shields the light from the outside by the shielding unit 24 (the left eye shielding unit 30L or the right eye shielding unit 30R) on the side of the eye opposite to the eye determined to be the dominant eye.

As described above, when the right eye is determined to be the dominant eye, the control unit 20 projects the light of the image from the projector 43R for the right eye in step 104 as in the example shown in FIG. 5, and the screen for the right eye. The image 80 is displayed on the 42R. Further, in step S106, the control unit 20 shields the light incident on the user's left eye from the outside by the left eye shielding unit 30L.

In the next step S108, the fatigue state determination unit 28 determines whether or not to execute the fatigue state determination process of the user's eyes. As an example, in the present exemplary embodiment, the fatigue state is determined every time a predetermined time elapses after the projector 43 starts projecting the light of the image. Therefore, in this step, it is determined whether or not the predetermined time has elapsed. If it has not elapsed, the determination in step S108 becomes a negative determination, and the process proceeds to step S116. On the other hand, when the lapse has passed, the determination in step S108 becomes an affirmative determination, and the process proceeds to step S110.

In step S110, the fatigue state determination unit 28 executes the determination process of the fatigue state of the user's eyes. In this exemplary embodiment, as an example, the fatigue state is determined by the number of blinks of the user. Specifically, the fatigue state determination unit 28 includes an imaging unit that images the user's eye (eyelid), performs image analysis on the captured images captured at predetermined intervals, and is determined in advance. Measure the number of blinks of the user within the time. The fatigue state determination unit 28 tends to increase the number of blinks as the eyes become tired. Therefore, when the counted number of blinks exceeds the threshold value obtained in advance experimentally, the fatigue state determination unit 28 is in a fatigued state. If the number of blinks is less than the threshold value, it is determined that the person is not in a fatigued state. Needless to say, the fatigue state determination processing method in the fatigue state determination unit 28 is not limited to this exemplary embodiment. For example, the more tired the person is, the more the parasympathetic nerve becomes dominant over the sympathetic nerve, and the pupil tends to miosis. It may be determined whether or not the patient is in a fatigued state based on the change in size. Further, for example, the more tired the person is, the larger the movement of the line of sight tends to be (the distance becomes longer). You may determine whether or not you are in a fatigued state based on. Further, for example, the nystagmus of the user's eyes, the degree of dryness, and the like may be used for determining the fatigue state.

It goes without saying that the detection of the number of blinks and the like is not limited to the imaging unit, and other sensors such as a myoelectric potential sensor may be used.

The predetermined time, which is a criterion for determining whether or not to determine the fatigue state, does not have to be a fixed time. For example, immediately after starting the display of the image 80, the determination interval is 5 minutes. Then, after 20 minutes have passed from the start, the determination interval may be set to 3 minutes. Further, for example, using a trained model in which the correspondence relationship between the time required for the user to determine that he / she is in a fatigued state (the time during which the image 80 is displayed) and the state of the pupil leading to the determination is learned. , The form of determining the fatigue state may be used.

In addition, the user may use the input unit 54 to input that the eyes are in a fatigued state.

In step S112, the control unit 20 determines whether or not the user's eyes are in a fatigued state based on the determination result in step S110. When it is determined that the user's eyes are not in a fatigued state, the determination in step S112 becomes a negative determination, and the process proceeds to step S116. On the other hand, when it is determined that the user's eyes are in a fatigued state, the determination in step S112 becomes an affirmative determination, and the process proceeds to step S114.

In step S114, the control unit 20 switches between left and right in the light projection by the projector 43 and the shielding by the shielding unit 24. As described above, when the light of the image is projected from the projector 43R for the right eye and the light incident on the left eye of the user from the outside is blocked by the shielding portion 30L for the left eye, it is determined to be in a fatigued state. In this case, as in the example shown in FIG. 5, the light of the image 80 is projected from the projector 43L for the left eye, and the light incident on the right eye of the user from the outside is blocked by the shielding unit 30R for the right eye.

In the next step S116, it is determined whether or not to end the display. In the display device 10 of the present exemplary embodiment, as an example, when the image data of the image being displayed by the display unit 22 is terminated, and when the user gives an instruction to end the display via the input unit 54. It is a condition for ending the display of the image 80 that at least one of the above cases is satisfied. In this exemplary embodiment, the display of the image 80 is terminated when the termination condition is satisfied. If the end condition is not satisfied, the display of the image 80 is not yet ended, so that the determination in step S116 is a negative determination, the process returns to step S108, and each process in steps S110 to S114 is repeated. On the other hand, when the end condition is satisfied, the determination in step S116 becomes an affirmative determination, and the process proceeds to step S118.

In step S118, the control unit 20 ends the display of the image 80 by the display unit 22 on the side of one eye of the user and the shielding by the shielding unit 24 on the side of the other eye. As in the example shown in FIG. 5, the user can see the real world through the lens 13 (screen 42) without being obstructed by either the image 80 or the shielding portion 24 with both the left and right eyes. Become.

In the next step S120, the control unit 20 determines whether or not to end the display control process. In this exemplary embodiment, as an example, the display control process is terminated when the power supply (not shown) of the display device 10 is turned off by the user. When the power is still turned on in the display device 10, the determination in step S120 becomes a negative determination, the process returns to step S100, and each process in steps S102 to S118 is repeated. On the other hand, when the power of the display device 10 is turned off, the determination in step S120 becomes an affirmative determination, and the present display control process ends.

As described above, the display device 10 of the present exemplary embodiment includes the projector 43 that projects the light of the image in a state that can be visually recognized by one eye of the user, and the other eye of the user from the outside of the own device. The projector 43 captures an image of the state of the shielding unit 24 including the left-eye shielding unit 30L and the right-eye shielding unit 30R, which can be switched between a state of shielding the light incident on the light and a state of transmitting the light, and the state of the shielding unit 24. The control unit 20 controls to switch to a state in which the light is blocked when the light is projected, and to a state in which the light is transmitted when the projector 43 does not project an image.

In general, when a user visually recognizes an image with only one eye, the person who does not visually recognize the image visually recognizes the real world itself. Since different objects are visually recognized by both eyes, the information of both is mixed, and a so-called binocular visual field struggle occurs in which images are alternately replaced in a mosaic pattern. Therefore, in order to suppress the binocular visual field struggle, a predetermined technique is known in which a shielding plate is fixed to the side of the eye that does not visually recognize the image, and the shielding plate shields the light incident on the user's eye. Has been done. However, if the shielding plate is fixedly provided, the user's field of view will be blocked even when the image is not displayed on one eye side, for example, when the shielding plate is not desired to be shielded. Therefore, it becomes difficult to see the real world only with the other eye while the display device is attached.

On the other hand, in the display device 10 of the present exemplary embodiment, the user does not need to operate the display unit 22, and the light shielding state of the shielding unit 24 is switched in synchronization with the display of the image by the display unit 22, so that the display device 10 automatically switches the light shielding state. , The shielded state is released. As described above, in the display device 10 of the present exemplary embodiment, the burden on the user can be further reduced, and the burden of operation as well as the burden of eye fatigue can be reduced.

In the display device 10 of this exemplary embodiment, a mode in which the entire screen 42 is shielded by the shielding unit 24 has been described, but the region shielded by the shielding unit 24 is not limited to this exemplary embodiment, and at least The area of the screen 42 where the light of the image 80 is projected, in other words, the area corresponding to the area where the image 80 is displayed may be shielded. For example, in the state shown in FIG. 6A, the left-eye shielding portion 30L includes an area corresponding to the area where the image 80 is displayed on the screen 42R, and shields an area smaller than the entire screen 42L.

Further, for example, on the side displaying the image 80, a part of the repair area of the image 80 may be shielded by the shielding unit 24. An example of this case is shown in FIG. 6B. In the example shown in FIG. 6B, even in the screen 42R, the periphery of the image 80 is shielded by the right-eye shielding portion 30R. Further, in the screen 42L, the area corresponding to the area shielded by the right eye shielding portion 30R is shielded by the left eye shielding portion 30L. By adopting the form shown in FIG. 6B, the visibility when the left and right images are optically superimposed can be improved.

Further, in the present exemplary embodiment, a mode in which the projector 43 is provided with two projectors 43L and 43R, two attachment / detachment portions 14 are provided, and the left and right portions are attached to the frame 12 by the attachment / detachment portions 14, respectively, has been described. The present invention is not limited to the embodiment, and as an example, as in the display device 10 shown in FIGS. 7 and 8, the display unit 22 may include one projector 43, a screen 42L, and a screen 42R. In this case, when the eye displaying the image 80 is switched between left and right, the user may reattach the attachment / detachment portion 14 in the opposite direction. In general, projectors are relatively more expensive than screens. By setting the number of projectors to one and the number of screens to two, it is possible to suppress the increase in price and the deterioration of user convenience as compared with the case where both the screen and the projector are reattached. be able to.

Further, for example, the display unit 22 may include one screen 42 and one projector 43. For example, the display unit 22 may have a screen 42L and a projector 43R, or the display unit 22 may have a screen 42R and a projector 43L.

Further, for example, as in the example shown in FIG. 9, the display unit 22 includes a retinal projector 45L that directly projects an image onto the retina of the user's left eye instead of the screen 42L and the projector 43L, and also includes the screen 42R and the projector 43L. Instead of the projector 43R, a retinal projector 45R that directly projects an image onto the retina of the user's right eye may be provided.

Further, in the display device 10 of the present exemplary embodiment, when the user's eyes are not in a fatigued state, the image 80 is displayed by the display unit 22 on the dominant eye side. When the image is visually recognized by one eye, the present inventors tend not to feel a sense of discomfort in the fact that the image is viewed by the dominant eye (they do not notice that the image is viewed by one eye). It was obtained from the knowledge that there is. Therefore, according to the display device 10 of the present exemplary embodiment, the image 80 is displayed mainly by the display unit 22 on the dominant eye side, thereby reducing the discomfort of the user and further reducing the burden on the user. Can be done.

In this exemplary embodiment, the hardware structures of the processing unit that executes various processes such as the control unit 20, the dominant eye determination unit 26, and the fatigue state determination unit 28 are as follows. Processor can be used. As described above, the various processors include a CPU, which is a general-purpose processor that executes software (program) and functions as various processing units, and a circuit after manufacturing an FPGA (Field Programmable Gate Array) or the like. Dedicated electricity, which is a processor having a circuit configuration specially designed to execute a specific process such as a programmable logic device (PLD), which is a processor whose configuration can be changed, and an ASIC (Application Specific Integrated Circuit). Circuit etc. are included.

One processing unit may be composed of one of these various processors, or a combination of two or more processors of the same type or different types (for example, a combination of a plurality of FPGAs or a combination of a CPU and an FPGA). It may be composed of a combination). Further, a plurality of processing units may be configured by one processor.

As an example of configuring a plurality of processing units with one processor, first, one processor is configured by a combination of one or more CPUs and software, as represented by a computer such as a client and a server. An example is a form in which a processor functions as a plurality of processing units. Secondly, as typified by System On Chip (SoC), there is a form in which a processor that realizes the functions of the entire system including a plurality of processing units with one IC (Integrated Circuit) chip is used. Can be mentioned. As described above, the various processing units are configured by using one or more of the above-mentioned various processors as a hardware structure.

Further, as the hardware structure of these various processors, more specifically, an electric circuit (circuitry) in which circuit elements such as semiconductor elements are combined can be used.

Further, in the above exemplary embodiment, the mode in which the display control program 60 is stored (installed) in the storage unit 52 in advance has been described, but the present invention is not limited to this. The display control program 60 is provided in a form recorded on a recording medium such as a CD-ROM (Compact Disk Read Only Memory), a DVD-ROM (Digital Versatile Disk Read Only Memory), and a USB (Universal Serial Bus) memory. May be good. Further, the display control program 60 may be downloaded from an external device via a network.

The disclosure of Japanese Patent Application No. 2018-176490 filed September 20, 2018 is incorporated herein by reference in its entirety.

All documents, patent applications, and technical standards described herein are to the same extent as if the individual documents, patent applications, and technical standards were specifically and individually stated to be incorporated by reference. Incorporated herein by reference.

Claims (13)

A light projecting unit that projects the light of the image so that it can be visually recognized by one of the user's eyes.
A shielding unit that can switch between a state in which light incident on the other eye of the user from the outside of the own device is blocked and a state in which the light is transmitted.
When the light projecting unit projects the light of the image in the state of the shielding unit, the light is shielded, and the light projecting unit does not project the image. A control unit that controls switching to a transparent state,
Display device equipped with. The display device according to claim 1, wherein the light projecting unit directly projects the image onto the retina of one eye. The display device according to claim 1, further comprising an image imaging unit in which the light of the image projected from the light projecting unit is imaged. The display device according to claim 3, further comprising a frame that is in contact with a part of the user's face and further holds the light projecting unit, the image forming unit, and the shielding unit. With one of the floodlights
The two shields corresponding to the user's eyes and
The two image imaging units corresponding to both eyes of the user,
With
It further includes two detachable portions that are provided at positions corresponding to both eyes of the user and that allow the light projecting portion to be attached to and detached from the frame.
The display device according to claim 4. The light projecting unit includes a light projecting unit for the right eye with one eye as the right eye of the user, and a light projecting unit for the left eye with the one eye as the left eye of the user.
The shielding portion has a shielding portion for the left eye with the other eye as the left eye of the user, and a shielding portion for the right eye with the other eye as the right eye of the user.
The control unit controls the light-shielding unit for the left eye in a state in which the light is shielded in response to the light projection of the image by the light-projecting unit for the right eye, and the light-emitting unit for the left eye of the image. The shielding portion for the right eye is controlled so that the light is shielded according to the light projection.
The display device according to any one of claims 1 to 4. A fatigue state determination unit for determining the fatigue state of the user's eyes is further provided.
When the fatigue state determination unit determines that the fatigue state determination unit is in a fatigued state during the light projection of the image by the light projection unit, the control unit directs the light projection unit that projects the light of the image to the right eye. Controls to switch between the light projecting unit for the left eye and the light projecting unit for the left eye.
The display device according to claim 6. The display device according to any one of claims 1 to 7, wherein the one eye is the dominant eye of the user. The display device according to claim 8, further comprising a dominant eye determination unit for determining the dominant eye of the user. The display device according to claim 8, further comprising a reception unit for receiving information on the dominant eye of the user. From claim 1, the shielding portion shields an area visually recognized by the other eye, which corresponds to a region in which the light of the image is projected, among the areas visually recognized by the user by the other eye. The display device according to any one of claims 10. A light projecting unit that projects an image so that it can be visually recognized by one eye of the user, a state that blocks light incident on the other eye of the user from the outside of the own device, and a state that transmits the light. It is a control method of a display device provided with a shield that can be switched to.
When the light projecting unit projects the image in the state of the shielding unit, the light is transmitted when the light projecting unit does not project the image in the state where the light is shielded. Control to switch to the state to be
A method of controlling a display device performed by a computer, including the fact that. A light projecting unit that projects an image so that it can be visually recognized by one eye of the user, a state that blocks light incident on the other eye of the user from the outside of the own device, and a state that transmits the light. It is a control program of a display device equipped with a shield unit that can be switched to.
When the light projecting unit projects the image in the state of the shielding unit, the light is transmitted when the light projecting unit does not project the image in the state where the light is shielded. Control to switch to the state to be
A display control program that causes a computer to perform processing including that.

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