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WO2018173159A1 - Dispositif d'affichage d'image - Google Patents

Dispositif d'affichage d'image Download PDF

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Publication number
WO2018173159A1
WO2018173159A1 PCT/JP2017/011474 JP2017011474W WO2018173159A1 WO 2018173159 A1 WO2018173159 A1 WO 2018173159A1 JP 2017011474 W JP2017011474 W JP 2017011474W WO 2018173159 A1 WO2018173159 A1 WO 2018173159A1
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WO
WIPO (PCT)
Prior art keywords
display device
video display
image
content
user
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2017/011474
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English (en)
Japanese (ja)
Inventor
真弓 松下
嶋田　堅一
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Maxell Ltd
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Maxell Ltd
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Filing date
Publication date
Application filed by Maxell Ltd filed Critical Maxell Ltd
Priority to PCT/JP2017/011474 priority Critical patent/WO2018173159A1/fr
Publication of WO2018173159A1 publication Critical patent/WO2018173159A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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  • the present invention relates to a video display device mounted on a head and an operation method thereof.
  • a head-mounted display (hereinafter referred to as HMD) that allows an individual to enjoy a large screen image is known.
  • HMD head-mounted display
  • This is a non-transparent head-mounted image display device that is used by being fixed to a user's head with a headband or the like and covering a part of the face including the user's left and right eyeballs. It is.
  • an image display element such as a liquid crystal display element for converting a supplied video signal into an image, and an optical path for guiding the image converted by the image display element to the left and right eyeballs of the user are formed.
  • Optical components such as a reflecting mirror and a lens are provided.
  • the HMD is configured as described above, it is small and portable, and the user can easily carry it to the desired place and enjoy the video.
  • the non-transparent HMD can display an image in the 360 ° direction around the user while blocking the external image, so that the user can enjoy the image in various directions and have a high immersive feeling. And gain a realistic experience.
  • the non-transmissive HMD is a video display device suitable for enjoying entertainment in a moving body or the like, and is expected to be increasingly demanded in the future.
  • Patent Document 1 JP-A-2015-191124
  • Patent Document 1 when an approach of an object is detected while video content is displayed on the display unit, the external video and video content are set so that both the external video captured by the imaging unit and the video content can be visually recognized.
  • a non-transmissive HMD is disclosed that includes a display control unit that displays a superimposed image on the display unit.
  • Patent Document 1 superimposes an external video and video content when an approach of an object is detected, but does not consider the point of obtaining external information desired by the user.
  • the non-transmissive HMD is a video display device that blocks the external information around the user and enhances the presence of the content, and can provide a high level of immersion.
  • the desired outside world information cannot be obtained while viewing the content, and it is necessary to remove the HMD to obtain the outside world information.
  • the HMD is removed, there is a problem that the immersive feeling is greatly impaired.
  • the present invention has been made in view of the above-described background art and problems, and provides a technique for obtaining desired external information without significantly impairing the immersive feeling of content by the non-transmissive HMD. .
  • the present invention is a video display device to be worn on the head, and includes an image display unit that displays content, and a request detection unit that detects an acquisition request for an external image, and a request detection unit. Is configured to detect an external image acquisition request triggered by detection of a user's action or input to a video display device, and to superimpose and display the content and the external image.
  • the present invention it is possible to provide a head-mounted image display device that can obtain external information without impairing the immersive feeling of content by the non-transmissive HMD as much as possible.
  • FIG. 1 is a configuration block diagram of a video display device in Embodiment 1.
  • FIG. 6 is a flowchart of superimposed display in the first embodiment. It is a figure explaining the structure of the video display apparatus in Example 1.
  • FIG. It is a figure explaining another structure of the video display apparatus in Example 1.
  • FIG. It is a figure explaining another structure of the video display apparatus in Example 1.
  • FIG. It is explanatory drawing which shows the effect by the structure of Example 1.
  • FIG. 10 is a flowchart for superimposing and displaying a part of an external image in the second embodiment. It is a figure explaining the structure of the video display apparatus in Example 2.
  • FIG. It is explanatory drawing which shows the effect by the structure of Example 2.
  • FIG. It is a figure which shows the designation
  • FIG. It is an example of a guidance screen when the registration area is not settled in the user's view in Example 2.
  • FIG. It is a figure which shows the designation
  • FIG. FIG. 10 is a configuration block diagram of a video display device in Example 3. 12 is a flowchart of switching from content screen display to external image display in the third embodiment. It is explanatory drawing which shows the effect by the structure of Example 3.
  • a head-mounted video display device (hereinafter simply referred to as a video display device) according to an embodiment of the present invention will be described with reference to the drawings.
  • FIG. 1 is a diagram showing a state in which a user 2 wears a non-transmissive image display device 1.
  • the non-transmission type refers to a configuration that blocks an external image when viewing content, and is used in so-called augmented reality (AR) and is a transmissive display that can be worn in front of the eyes. This is different from a system that provides related information by superimposing and displaying characters and images related to the object that the wearer is looking at.
  • the external image refers to direct light and may be a captured image of a camera.
  • a video display device 1 is used by being mounted on a user's 2 head so as to cover a part of the face including the left and right eyeballs of the user 2. Can enjoy content images on a large screen individually.
  • 4 is an earphone.
  • FIG. 2 is a block diagram showing the configuration of the video display apparatus according to this embodiment.
  • the video display device 1 mainly includes a video signal generation unit 5 and a video display unit 6.
  • the video signal generator 5 is, for example, a player for playing back a recording medium such as a DVD (registered trademark) or Blu-ray Disc (registered trademark) on which image information is recorded, or connected to the Internet to display image information.
  • a video signal based on the image information (content) is generated in response to a video playback command and supplied to the video display unit 6.
  • the video display unit 6 is a goggle type display device in which a headband or the like is attached to a housing, and the housing is mounted so that the housing covers a part of the face including the left and right eyeballs of the user 2 by the headband. .
  • the video display unit 6 supplies the video signal supplied from the video signal generation unit 5 to an image display unit 7 made of, for example, a liquid crystal display element, and converts the image signal into an image by the image display unit 7 to generate a video based on the image. .
  • an optical unit 8 composed of a lens or the like may be disposed.
  • the external image 501 is input to the optical unit 8 by the light control unit 11, and the optical density is adjusted by the light control unit 11 controlled by the control unit 10.
  • the control unit 10 is controlled when the request detection unit 9 detects an acquisition request for the external image 501 from the user 2.
  • the external image 501 is obtained by superimposing the content image and the external world image 501 so that the immersive feeling is not impaired as much as possible. be able to.
  • the user 2 who wants to obtain outside world information during the reproduction of the content transmits a superimposition start request signal to the video display device 1 by a method described later.
  • the request detection unit 9 detects the request signal (step 101)
  • the control unit 10 controls the dimming unit 11 to superimpose and display the content image and the external image 501 (step 102).
  • the user 2 transmits a superposition end request signal to the video display device 1 by a method described later.
  • the request detection unit 9 detects the request signal (step 103)
  • the control unit 10 controls the light control unit 11 to end the superimposition (step 104), and displays only the content image (step 105).
  • FIG. 4 is a cross-sectional view showing the vicinity of one eyeball of the user 2 wearing the video display device 1.
  • a video signal that is a content image is input to the image display unit 7 to generate a video, which is reflected by the light control unit 11 and projected onto the eyeball of the user 2, while an external image is guided to the eyeball of the user 2.
  • the dimming unit 11 controls the overlapping ratio between the content image and the external image.
  • the light control unit 11 is composed of, for example, a variable ND (Neutral Density) filter, or a material whose transmittance can be electrically controlled, such as an electrochromic material or a gas chromic material. According to this configuration, the content image whose brightness is adjusted by the brightness adjustment of the image display unit 7 or the control of the light control unit 11 and the external image 501 whose brightness is adjusted by the control of the light control unit 11 are superimposed and displayed. be able to.
  • ND Neutral Density
  • the light control unit 11 is initially set so as to transmit the external image 501 100%.
  • the user 2 when the user 2 is wearing the video display device 1, the user 2 can observe the external image 501 through the video display device 1 even if the power supply is dropped or broken. Safety can be ensured.
  • FIG. 5 is a diagram for explaining another configuration of the video display device 1 in the present embodiment.
  • a light control unit 11 is disposed between the transmissive image display unit 7 and the external image.
  • the image display unit 7 is composed of, for example, a transparent organic EL display. According to this configuration, the content image whose brightness is adjusted by adjusting the brightness of the image display unit 7 and the external image 501 whose brightness is adjusted by the control of the light control unit 11 can be displayed in a superimposed manner.
  • FIG. 6 is a diagram for explaining still another configuration of the video display device 1 in the present embodiment.
  • an external image 501 captured by the imaging unit 13 such as a camera included in the video display device 1 is output by the video output unit 14 and then subjected to image processing such as optical density adjustment by the image processing unit 15.
  • the image is input to the image display unit 7 by the video input unit 16.
  • the video signal supplied from the video signal generator 5 is input to the image display unit 7.
  • the external image 501 acquired by the imaging unit 13 and adjusted in optical density by the image processing unit 15 is superimposed on the content image and guided to the eyeball of the user 2.
  • an optical unit 8 for guiding the user 2 to the eyeball may be provided.
  • FIG. 7A shows a content screen 500 that the user 2 is viewing
  • FIG. 7B shows an external image 501 spreading in front of the user 2.
  • the user 2 can view the superimposed screen 502 on which the content screen 500 and the external image 501 are superimposed and displayed, as shown in FIG. 7C.
  • each image is indicated by a broken line for explanation.
  • the user 2 can arbitrarily adjust the overlapping ratio between the content screen 500 and the external image 501. A method for adjusting the superposition ratio will be described later.
  • FIG. 8A shows an operation in which the user 2 extends his / her arm
  • FIG. 8B shows an operation in which the user 2 moves his / her head left and right to search for an arbitrary object or the like
  • 8C shows an operation in which the user 2 is touching the screen of the video display device 1
  • FIG. 8D shows an operation in which the user is hitting the video display device 1
  • FIG. 8E shows a video display device. The operation
  • the request detection unit 9 provided in the video display device 1 is composed of, for example, any one or a combination of a gyro sensor, an acceleration sensor, a piezoelectric sensor, a touch sensor, a pressure sensor, a camera, and a microphone,
  • the request detection unit 9 operates by the user 2 as illustrated in FIGS. 8A and 8B, or the video display device 1 by the user 2 as illustrated in FIGS. 8C to 8E.
  • an input to the input it is determined that this is a request signal for starting superimposition from the user 2, and superimposition display of the content screen 500 and the external image 501 is started.
  • the operation that happens to be taken may be erroneously determined by the request detection unit 9 as a request signal for starting superposition.
  • various operations of the user 2 are registered in advance at the time of initial setting when using the video display apparatus 1, and if substantially the same operation is detected, it is determined that the signal is a request signal for starting superposition. Also good.
  • the request detection unit 9 displays the operation when the operation is detected, and the operation is detected in a mode other than the superimposition mode. Even in such a case, it may be configured not to be superimposed and displayed.
  • the superposition mode may be set by an operation on the screen, or may be set by physically arranging a switch.
  • the video display device 1 is provided with a voice detection unit such as a microphone, the voice of the user 2 is registered at the time of initial setting, and the subsequent operations are performed by the user 2 giving verbal instructions. It is good also as a structure.
  • the video display device 1 that has detected the request signal from the user 2 by the method as described above controls the dimming unit 11 and displays the content screen 500 and the external image 501 in a superimposed manner.
  • the superimposition ratio between the content screen 500 and the external image 501 can be arbitrarily adjusted by the user 2. Next, an operation in which the user 2 adjusts the superposition ratio will be described with reference to FIG. It is assumed that the higher the superposition ratio, the darker the optical density of the external image 501 is displayed and the content screen 500 is displayed lighter. Or it is good also as a reverse structure.
  • FIG. 9A shows a state where the user 2 is touching the screen of the video display device 1
  • FIG. 9B shows a state where the screen is swiped up and down.
  • the superposition ratio can be adjusted by the strength of the touch or the swipe up and down or left and right.
  • FIG. 9C shows a state in which the user 2 is making a gesture of moving his / her finger up and down in front of the screen of the video display device 1.
  • the superimposition ratio can also be adjusted by such gestures.
  • the superposition ratio may be adjusted as appropriate while looking at the superposition display screen, or may be adjusted in advance at the time of initial setting.
  • a physical knob 17 is arranged on the video display device 1 and the user 2 adjusts the knob 17 to adjust the superposition ratio. good.
  • the user 2 may give a voice instruction.
  • the malfunction of the user 2 is prevented by registering the voice of the user 2 when the video display device 1 is initially set.
  • the speed of the operation of the user 2 when transmitting the superimposition start request signal may be detected, and the higher the operation, the higher the superposition ratio may be set.
  • the video display device 1 is equipped with the superimposition mode, and the user 2 sets the superimposition mode so that it functions with respect to the detected operation. Prevent operation.
  • the user 2 requests to end the superposition. It may be determined that the signal is a signal, the external image 501 may be blocked, and the display may be switched to the content screen 500 only.
  • the voice instruction of the user 2 may be detected by a detection unit such as a microphone provided in the video display device 1, and when the user 2 turns off the physical button, the superimposition is ended and the content screen 500 is detected. May be set to play.
  • the present invention it is possible to provide a head-mounted image display device that can obtain desired external information without impairing the immersive feeling of content by the non-transmissive HMD as much as possible.
  • the first embodiment is configured to superimpose and display the external image 501 on the entire screen of the video display device 1
  • a part of the external image 501 is superimposed and displayed on the screen of the video display device 1. An example of the case will be described.
  • FIG. 11 a flowchart in the case where a part of the external image 501 is superimposed and displayed on the screen of the video display device 1 in the present embodiment will be described.
  • step 201 when the user 2 wears the video display device 1 (step 200), initial setting is started (step 201).
  • step 201 the initial posture of the user 2 is detected and registered as reference coordinates (step 202). Since this apparatus is a video display apparatus 1 that is used by being mounted on the head, the posture of the user 2 mainly means the direction of the head.
  • step 203, 204, 205 the process proceeds to a step of registering the area or object as a registration requirement.
  • the user 2 designates an area and an object by a method to be described later (step 204) and registers it in the video display device (step 205).
  • the registered area or object is referred to as a registered area.
  • the initial setting is thus completed, and the content image is reproduced (step 206).
  • the user 2 who wants to obtain outside world information while viewing the content image transmits a superposition start request signal to the video display device 1 (step 207).
  • the video display apparatus 1 that has detected the request signal from the user 2 detects the posture of the user 2 again (step 208), and calculates the coordinates of the registration area from the difference from the reference coordinates registered at the initial setting (Ste 209), it is determined whether or not the registered area is within the current user's field of view (step 210). If not, the guidance described later is displayed on the screen (step 211). If it is within the range, the control unit 10 controls the light control unit 11 corresponding to the corresponding coordinates (step 212), and the content image and the external image 501 are displayed in a superimposed manner (step 213).
  • the user 2 who wants to block the outside world information transmits a superimposition end request signal to the video display device 1 (step 214).
  • the video display device 1 that has detected the request signal from the user 2 controls the light control unit 11 by the control unit 10 to block the external image 501 and display the content screen 500 (step 215).
  • step 203 when the user 2 wears the video display device 1, it is determined in step 203 that registration is unnecessary, and the process proceeds to step 216 to reproduce the content.
  • the user 2 who wants to obtain external world information transmits a superposition start request signal to the video display device 1 (step 217).
  • the video display device 1 that has detected the request signal from the user 2 receives the designation of the area and the object from the user 2 by a method described later (step 218), and the control unit 10 controls the dimming unit according to the location. 11 (step 212), the content image and the external image 501 are superimposed and displayed (step 213).
  • the subsequent flowchart is as described above.
  • FIG. 12 is a cross-sectional view showing the vicinity of one eyeball of the user 2 wearing the video display device 1.
  • a video signal is input to the image display unit 7 to generate a video, which is displayed on the eyeball of the user 2, while an external image is guided to the eyeball of the user 2, and the optical density of the content image and the external image 501 is adjusted. It is controlled by the light unit 11.
  • the light control unit 11 is composed of a plurality of light control units 18 to 24, whereby the optical density can be partially controlled.
  • the structure shown in FIG. 6 may be used as another structure of the video display apparatus 1 in the present embodiment.
  • a part of the captured image is extracted, the optical density is adjusted by image processing, and input to the image display unit 7.
  • the optical density of the captured image is changed depending on the location and input to the image display unit 7.
  • FIG. 13A shows a content screen 500 that the user 2 is viewing
  • FIG. 13B shows an external image 501 spreading in front of the user 2.
  • the user 2 can view the superimposed screen 502 in which a part of the external image 501 is superimposed on the content image as shown in FIG. 13C. That is, for example, only the drink 54 of the external image 501 is superimposed and displayed.
  • the external image 501 to be superimposed can be designated by the user 2 by a method described later.
  • the superimposition ratio between the content image and the external image 501 can be arbitrarily adjusted by the user 2 as in the first embodiment.
  • FIG. 14 (A) is a view of the user 2 wearing the video display device 1 observed from directly above.
  • the user 2 is trying to touch the external image 501 viewed through the video display device 1 using his / her fingers.
  • FIG. 14B shows an external image 501 that the user 2 is looking through the screen of the video display device 1 and his / her finger 52 trying to touch the specific place.
  • the area or object pointed to by the user 2 is recognized by the imaging unit 13 such as a camera provided in the video display device 1.
  • the imaging unit 13 such as a camera provided in the video display device 1.
  • the window 29 displayed on the screen of the video display device 1 is moved to move the area or object (registered area) 25 to be designated. You may comprise in the window 29 and register them.
  • a piezoelectric sensor is arranged on the screen of the video display device 1, and the user 2 touches, swipes, or pinches the window 29 displayed on the screen, so that selection, movement, enlargement / reduction can be performed. You may comprise so that operation can be performed.
  • the information detected by the detection unit is It may be configured to transfer to the video display device 1 and detect that there is a drink and register that area when there is a drink.
  • FIG. 15 shows a screen example of a guidance display 27 that guides the user 2 to turn to the left when the registration area 25 is not within the field of view of the user 2.
  • the external image 501 may be temporarily displayed over the entire screen so that it can be easily searched. Thereafter, when the registration area 25 is within the field of view of the user 2 such as when the user 2 faces in an appropriate direction, a part of the external image 501 is displayed again.
  • this operation is performed after the request detection unit 9 receives a superposition start request signal from the user 2.
  • a window is displayed on the screen of the video display device 1. 29 is displayed, the optical density of the area is adjusted, and the area or object (registered area) 25 desired to be designated in the external image 501 is superimposed on the content image.
  • the window 29 may be configured so that the user 2 can perform selection, movement, and enlargement / reduction operations by touching, swiping, and pinching.
  • the overlapping area may be designated by extending the user's arm or finger in the direction in which the user 2 wants to check the external image 501.
  • the imaging unit 13 such as a camera provided in the video display device 1
  • the coordinates of the part are acquired, and the light control unit 11 corresponding thereto is acquired.
  • the optical density is controlled by the control unit 10 so as to be superimposed on the content image.
  • the window 29 may be displayed or may not be displayed so that the superimposed area can be easily understood. When not displayed, the feeling of immersion can be further enhanced.
  • the range for controlling the optical density of the light control unit 11, that is, the superimposition area is set every time. You can spread it.
  • a part of the external image is superimposed and displayed on the screen of the video display device, so that it becomes easy to specify desired external information and the immersive feeling of content by the non-transmissive HMD can be obtained. It is possible to provide a head-mounted image display device that can more easily obtain external information without losing as much as possible.
  • Embodiments 1 and 2 are examples in which a request from a user is detected and the light control unit is controlled. In this embodiment, an example in which a request is detected from a user other than the user will be described.
  • the video display device when the video display device according to the present embodiment is used by a passenger of a moving body such as an automobile, when the mobile body arrives at the destination, the user either removes the video display device to get out of the vehicle or displays the content screen.
  • the audio is gradually switched before the video, and then the video is gradually superimposed by superimposing the external image. Switch to.
  • FIG. 17 is a configuration block diagram of the video display device 1 in the present embodiment.
  • the switching request detection unit 30 detects a switching request from a detection unit such as the camera 13 or the microphone 31 provided in the video display device 1 or an in-vehicle sensor such as the GPS 32
  • the voice control unit 33 and the video control are performed.
  • the unit 40 controls audio and video, respectively.
  • the sound control unit 33 gradually changes the volume ratio between the external sound 38 from the microphone 31 and the content sound from the video signal generation unit 5, and the sound is output by the sound output unit 34 including an earphone or the like to the ear of the user 2. To deliver.
  • the video control unit 40 controls the dimming unit 11 to gradually change the superposition ratio of the content video from the video signal generation unit 5 and the external image and deliver the video to the user 2.
  • the switching request detection unit 30 may detect the request from the user in combination with the switching according to the request from the user in FIG.
  • FIG. 18 is a flowchart of switching from content screen display to external image display in the present embodiment.
  • a switching request is detected from a user other than the user during the reproduction of the content image (step 300) (step 301)
  • the volume of the content audio and the external audio is gradually changed until the volume of the content audio is minimized.
  • Step 302 When the volume ratio of the external audio reaches 100% in this way (step 303), the content image and the image of the outside world image are controlled to be dimmed and superimposed (step 304). In this way, the light control unit is controlled until the content image superimposition ratio becomes 0% (305).
  • the processing is terminated (306).
  • FIG. 19 is a diagram illustrating the effect of the configuration of the present embodiment.
  • the user 2 is input with the content screen 500 and the content audio 35 and is in a so-called immersion state.
  • the volume of the content audio 35 is gradually reduced and the external audio 38 is picked up as shown in FIG. Gradually increase the volume from the microphone.
  • the content image and the external image 501 are superimposed and displayed as shown in FIG.
  • the superposition ratio of the external image 501 is gradually increased, and the switching is completed when the external image 501 is completely displayed as shown in FIG.
  • the content screen 500 when the user 2 views the content image again, it may be configured to easily return to the location where viewing was interrupted.
  • the video signal generator 5 may be controlled so that the content screen 500 is automatically stopped when switching to the external image 501, and the content image remains reproduced after switching,
  • the playback location at the time of switching may be stored in memory so that it can be returned.
  • the present invention is not limited to the above embodiments, and includes various modifications.
  • the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.
  • a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment.
  • each of the above-described configurations, functions, processing units, processing means, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit.
  • Each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor.

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Abstract

La présente invention aborde le problème selon lequel, lorsqu'un utilisateur d'un dispositif d'affichage d'image non transmissif monté sur la tête enlève le dispositif de sa tête pour obtenir des informations du monde extérieur, le sens d'immersion de l'utilisateur est altéré de manière significative. La présente invention résout ce problème en fournissant un dispositif d'affichage d'image monté sur la tête qui est équipé : d'une unité d'affichage d'image destinée à afficher des contenus ; et d'une unité de détection de demande destinée à détecter une demande d'acquisition d'une image du monde extérieur, l'unité de détection de demande étant configurée de manière à détecter une demande d'acquisition d'une image du monde extérieur lors de la détection d'un mouvement de l'utilisateur ou lors de la réception d'une entrée au dispositif d'affichage d'image, et, ensuite, à réaliser un affichage en superposant les contenus sur l'image externe.
PCT/JP2017/011474 2017-03-22 2017-03-22 Dispositif d'affichage d'image Ceased WO2018173159A1 (fr)

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