JP5494731B2 - Head-mounted display - Google Patents

Description

The present invention relates to a possible head-mounted Display Lee worn on the head of the user with the display unit.

  In recent years, display devices such as a head-mounted display that can be mounted on a user's head have been considered due to the miniaturization of display elements. Such a display device is preferably used with the display unit adjusted to an appropriate position. Therefore, for example, in the invention of Patent Document 1, a technique for preventing the image display unit from facing down during use is proposed.

International Publication Number WO2005 / 064930

  However, in a head-mounted display that mainly displays the image of the display unit on one eye of the user, when adjusting the position of the display unit, the tilt of the display unit may not be adjusted correctly. If the inclination of the display unit is not adjusted correctly, the user may feel uncomfortable at the time of observation or eye fatigue may easily occur.

  An object of the present invention is to provide a display unit that mainly displays an image on one eye of a user, and to appropriately adjust the position of the display unit in a head-mounted display that can be mounted on the user's head. .

In one aspect of the present invention, the head-mounted display is a head-mounted display that includes a display unit that displays an image on one eye of the user, and a playback unit that plays back an index for adjusting the display unit. Prepare. Reproducing unit displays the first indicator for adjusting the vertical position relative to the user's eye to the display unit, the vertical position of the user display unit as upper and lower ends of the first indicator is visible A first adjustment mode to be adjusted, a second index displayed on the display unit, and a third index correlated with the second index displayed on the display unit is an external output device other than the head-mounted display And a second adjustment mode in which the user adjusts the position of the display unit so that the second index displayed on the display unit and the third index displayed on the external output device overlap. In the state where the adjustment in the first adjustment mode is performed, the adjustment in the second adjustment mode is performed.

  ADVANTAGE OF THE INVENTION According to this invention, the display part which displays an image mainly on a user's one eye is provided, and the position adjustment of a display part can be performed in the head mounted display which can be mounted | worn on a user's head. .

1 is an external view of a head-mounted display 100. FIG. It is a figure explaining the position adjustment of the display part. 3 is a functional block diagram of the head-mounted display 100. FIG. It is a figure explaining use of the head mounted display. It is a figure explaining position adjustment guidance. It is a figure explaining position adjustment guidance (continuation). It is a figure explaining position adjustment guidance (continuation). It is a figure explaining position adjustment guidance (continuation). It is a figure explaining an index image. It is a figure explaining the index image for adjustment.

<First Embodiment>
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an external view of a head-mounted display 100. The head-mounted display 100 includes a main body 101, a remote controller 102, and a terminal 103 as shown in FIG. The main body 101 and the remote controller 102 are connected by a cable 140. The remote controller 102 and the terminal 103 are connected by a cable 141. Note that, instead of the cable 140 and the cable 141, the main body 101, the remote controller 102, and the terminal 103 may be connected wirelessly.

  The main body 101 includes a communication unit 110, a speaker 111, a connection unit 111a, a display unit 112, and a support arm 112a. At the time of wearing, the speaker 111 is attached to both ears of the user, and the speaker 111 is held on both ears of the user by the elastic force of the connecting portion 111a. The display unit 112 is disposed in front of the user's left eye when worn, and enlarges an image display element (not shown) such as a transmissive LCD or an organic EL display and projects the image of the image display element onto the user's eye (not shown). And an optical system. Note that an image display element such as a reflective LCD or a self-luminous element arranged two-dimensionally may be used as the image display element.

  The display unit 112 is supported by the support arm 112a. The support arm 112a slides and moves in the direction of arrow a in FIG. The display unit 112 and the support arm 112a are arranged at a position indicated by a solid line in FIG. In addition, the display unit 112 and the support arm 112a are rotated about the axis b when the image is not observed, and the display unit 112 is arranged at the top of the user's head (position indicated by a dotted line in FIG. 1). . As a result, the display unit 112 is disposed in the vicinity of the communication unit 110 except when observing an image, and does not block the user's field of view. Further, the support arm 112a can be rotated in the direction of the arrow c in FIG. 1 about the axis b in FIG. 1 by a driving unit (not shown). Therefore, the position of the display unit 112 can be correctly adjusted in front of the user's eyes by the above-described slide in the direction of the arrow a and rotation in the direction of the arrow c.

  Further, the display unit 112 includes a slide member 112b and a spherical bearing 112c between the support arm 112a, and a more detailed position and inclination can be adjusted based on a user operation. FIG. 2 shows the relationship between the image display element of the display unit 112 and the user's eyes. As shown in the side view of FIG. 2A, the display unit 112 can be slid in the direction of the arrow a by sliding the support arm 112a in the direction of the arrow a, and the front-rear position with respect to the user's eyes is adjusted. Is possible. The display unit 112 can be rotated in the direction of the arrow e by the spherical bearing 112c, and can also be rotated in the direction of the arrow f by the spherical bearing 112c as shown in the top view of FIG. 2B. Therefore, it is possible to adjust the inclination with reference to the user's eyes. Further, as shown in the front view of FIG. 2C, the display unit 112 can be slid in the direction of the arrow g by the slide member 112b, and the left and right positions with reference to the user's eyes can be adjusted. Further, as shown in the front view of FIG. 2D, the display unit 112 can be rotated in the direction of the arrow i by the spherical bearing 112c. Therefore, the inclination in the plane perpendicular to the optical axis of the user's eyes can be adjusted.

  As shown in FIG. 1, the remote controller 102 includes an operation unit 120 such as a power button, a cross button, and a menu button on the front surface, and a connector 121a of the communication unit 121 on the upper surface. As shown in FIG. 1, the terminal 103 includes a connector 131 a of the communication unit 131 on the upper surface, and a connection unit 132 connected to an external device such as a display element or a computer via a cable or the like on the side surface. Note that the terminal 103 may include a display unit such as a liquid crystal monitor and an operation unit such as a button. Further, the terminal 103 may be configured so that a recording medium can be attached and detached.

  FIG. 3 is a functional block diagram of the head mounted display 100.

  The remote controller 102 includes a control unit 122 that controls each unit. The control unit 122 detects the state of the operation unit 120 and is connected to the communication unit 121.

  The terminal 103 stores information related to position adjustment guidance described later in addition to the connection unit 132, the display control unit 133 that controls display on the display unit 112, image information displayed on the display unit 112, and audio information output to the speaker 111. And a control unit 135 that controls each unit.

  The control unit 135 is connected to each unit of the communication unit 131, the connection unit 132, the display control unit 133, and the storage unit 134. Further, the output of the display control unit 133 is connected to the communication unit 131.

  In accordance with an instruction sent from the remote controller 102 via the communication unit 131 and the communication unit 121, the control unit 135 reproduces audio to the speaker 111 via the communication unit 131, the communication unit 121, and the communication unit 110, and displays the display unit 112. Display an image for.

  The position adjustment guidance for the display unit 112 in the head-mounted display 100 having the above-described configuration will be described.

  In the present embodiment, a case where position adjustment guidance is performed by connecting the terminal 103 of the head-mounted display 100 and a television as an external device via the connection unit 132 will be described as an example. The control unit 135 reproduces information related to the position adjustment guidance stored in the storage unit 134 using the display unit 112 and the television, and performs position adjustment guidance. Note that the timing for performing the position adjustment guidance may be a timing when the power of the head-mounted display 100 is turned on, or a timing based on a user instruction via the operation unit 120. In addition, the control unit 135 is positioned according to the usage history of the head-mounted display 100 (the number of uses, the cumulative usage time, the elapsed time from the last use of the head-mounted display 100 to the current use, etc.), and the like. You may determine the timing which performs adjustment guidance.

  As described with reference to FIG. 1, the head-mounted display 100 of the present embodiment is disposed in front of the user's left eye when worn. When the head-mounted display 100 is used, the user observes an image of the display unit 112 that is enlarged in front of the display unit 112 as shown in FIG. 4A. In this case, it is known that when the enlarged image is present about 1 m from the user's eye, a favorable observation is performed. Further, it is known that when observing an image or the like, eye fatigue hardly occurs when the user's line of sight is slightly downward from parallel to the ground.

  In addition, as shown in FIG. 4B, the human eye has a substantially parallel visual axis (the optical axis of the user's eye) when viewing a distance, but both eyes cannot be viewed when viewing the vicinity. Each rotates inward, and the visual axes rotate inward relative to each other. Such an angle formed by the line-of-sight directions of both eyes is called a convergence angle, and the convergence angle is represented by θ. Therefore, when using the head-mounted display 100, it is preferable to adjust the display unit 112 by tilting it slightly inward as shown in FIG. 4B.

  Therefore, in this embodiment, as described with reference to FIGS. 4A and 4B, when the head-mounted display 100 is used, an enlarged image of the display unit 112 existing about 1 m from the user's eye is slightly looked down. An example of position adjustment guidance for adjusting the position of the display unit 112 so that it can be observed in a state will be described.

  5 to 8 show images reproduced on the display unit 112 and an external display device such as a television or a monitor during the position adjustment guidance. In the following description, a television is illustrated as an external display device. However, the present invention is not limited to this example. 5 to 8, GxA (x = 1 to 16) in the left column indicates an image to be reproduced on the television, and Gxa (x = 1 to 16) in the left column is reproduced on the display unit 112. An image is shown. The storage unit 134 stores in advance each image shown in FIGS. 5 to 8 in association with the reproduction order of each image and the display destination (display unit 112 or television) of each image.

  First, the control unit 135 displays the image indicated by G1a in FIG. 5 on the display unit 112 via each unit. The control unit 135 also outputs the image output to the connection 132 so that when the user connects the head-mounted display 100 to the television, the same image is displayed on the television. The image of G1a is composed of a sentence that prompts the user to connect the terminal 103 of the head-mounted display 100 and the television, and a figure or an image. Next, the control unit 135 displays the image indicated by G2A in FIG. 5 on the television via the connection unit 132. At this time, no image is displayed on the display unit 112 (display unit 112: OFF). The image of G2A is based on a sentence for prompting the user to move to a position suitable for position adjustment (a position where the user can observe the television, which is about 1 m from the user's eyes, looking down slightly), and a figure or image. Composed.

  The control unit 135 displays the image indicated by G3A in FIG. 5 on the television via the connection unit 132. At this time, the display unit 112 remains OFF. The G3A image is composed of a sentence for prompting the user to wear the head-mounted display 100 on the head and a figure or an image. Next, the control unit 135 displays the image indicated by G4A in FIG. 5 on the television via the connection unit 132. At this time, the display unit 112 remains OFF. The G4A image is composed of a sentence that prompts the user to move the line of sight to the display unit 112 of the head-mounted display 100, and a figure or an image. The user visually observes the G4A image, and starts position adjustment in accordance with the instruction displayed on the display unit 112 of the head-mounted display 100.

  The control unit 135 displays the image indicated by G5A in FIG. 6 on the television via the connection 132. At this time, the control unit 135 may not display an image on the display unit 112. The image of G5a is composed of a sentence that adjusts the support arm 112a to prompt the user to place the display unit 112 in front of the user's eyes, and a diagram or an image that shows the position to be adjusted and the adjustment method. The user can confirm the adjustment method by viewing the G5A image. Next, the control unit 135 displays the image indicated by G6a in FIG. 6 on the display unit 112 via each unit. At this time, the TV is turned off. The image G6a is an index image related to the adjustment of the support arm 112a. The user can adjust the position of the display unit 112 appropriately by making an adjustment so that the upper and lower ends of the index image can be seen while viewing the G6a image. Similarly, the control unit 135 displays the G7A image of FIG. 6 on the television via the connection 132. The G7A image is an adjustment method and an index image for adjusting the front-rear position of the display unit 112.

  Then, the control unit 135 displays the G8a image on the display unit 112 via each unit. At this time, the control unit 135 may not output an image to the connection unit 132. The user adjusts the front-rear position of the display unit 112 while viewing the index image so that the indices at both ends can be seen. Next, the control unit 135 displays the image indicated by G9a in FIG. 7 on the display unit 112 via each unit. At this time, since the display can be seen to some extent favorable on the display unit 112, the television is turned off. The image of G9a is composed of text that prompts the user to adjust the support arm 112a to place the display unit 112 in front of the user's eyes, and a diagram or image that shows the position to be adjusted and the adjustment method. Next, the control unit 135 displays the image shown in G10a of FIG. 7 on the display unit 112 via each unit. At this time, the television remains off. The image of G10a is composed of a figure or an image showing a more specific adjustment method when adjusting the support arm 112a. The user can confirm the adjustment method by viewing the images of G9a and G10a. Next, the control unit 135 displays the image shown in G11a of FIG. 7 on the display unit 112 through each unit and displays the image shown in G11A of FIG. 7 on the television through the connection unit 132. The images G11A and G11a are index images related to the adjustment of the support arm 112a and have a correlation. As shown in the image of G10a in FIG. 7, the user looks at the display unit 112 with the left eye and the television with the right eye, so that the two marks (G11A and G11a marks) overlap. Adjust the position. As a result, when the head-mounted display 100 is used, the position of the display unit 112 is adjusted so that an enlarged image of the display unit 112 existing about 1 m from the user's eyes can be observed while looking down slightly. Can do.

  Similarly to G9a and G10a, the control unit 135 displays the images of G12a in FIG. 7 and G13a in FIG. 8 on the display unit 112 via each unit. At this time, the television remains off. Next, the control unit 135 displays the image shown in G14a in FIG. 8 on the display unit 112 through each unit, and displays the image shown in G14A in FIG. 8 on the television through the connection unit 132. The images G14A and G14a are index images related to the adjustment of the support arm 112a and have a correlation. As shown in the G14a image of FIG. 8, the user visually observes the display unit 112 with the left eye and the television with the right eye so that the two marks (G14A and G14a marks) overlap. Appropriate adjustments can be made by adjusting the position.

  The control unit 135 displays the image indicated by G15a in FIG. 8 on the display unit 112 via each unit. At this time, the control unit 135 does not display an image on the television (television: OFF). The image of G15a is a diagram showing an adjustment method for adjusting the vertical position and the horizontal position with respect to the user's eyes on the display unit 112 and adjusting the inclination in the plane perpendicular to the optical axis of the user's eyes, or It consists of images. The user can confirm the adjustment method by viewing the image of G15a. Next, the control part 135 displays the image shown to G16a of FIG. 8 on the display part 112 via each part. At this time, the television remains off. The image of G16a is an index image related to the adjustment of the support arm 112a. The user can make an appropriate position adjustment of the display unit 112 by making an adjustment while viewing the G6a image.

  The control unit 135 sequentially displays the images G1A to G16A described in FIGS. 5 to 8 on the television via the connection unit 132, and also displays the images G1a to G16a described in FIGS. The information is sequentially displayed on the display unit 112 to perform position adjustment guidance. The user can visually check these images and sequentially perform the confirmation of the adjustment method and the adjustment using the index image. The order of G1A to G16A and G1a to G16a described with reference to FIGS. 5 to 8 is obtained by arranging the position adjustment of each part in an optimal order. Therefore, by adjusting in this order, even the beginner can efficiently adjust the position of the display unit 112.

  Note that the position adjustment guidance described with reference to FIGS. 5 to 8 is an example, and sentences, diagrams, images, and index images indicating the adjustment method are not limited to this example. For example, the correlation index indicated by G11A and G11a in FIG. 7 may be replaced with the index illustrated in FIG. 9B. As shown in FIG. 9B, the same functions as G11A and G11a in FIG. The same applies to G14A and G14a in FIG.

  On the other hand, the adjustment method is displayed on the display unit 112 after G9A. However, the adjustment method may be output to the connection unit 132 at the same time and confirmed on the television.

  The position adjustment guidance may be configured to be able to be stopped or paused at a timing desired by the user.

  As described above, according to the first embodiment, in a head-mounted display that includes a display unit that mainly displays an image on one eye of a user, a playback unit that plays back position adjustment guidance of the display unit; A connection unit connected to an external output device other than the head-mounted display, information indicating at least a first position adjustment guidance output to the display unit by the reproduction unit, and the first adjustment guidance are associated with the reproduction unit. And a storage unit that stores information indicating the second position adjustment guidance output to the external output device. Therefore, in a head-mounted display that mainly includes a display unit that displays an image on one eye of the user and can be mounted on the user's head, it is possible to perform appropriate position adjustment of the display unit.

  Further, according to the first embodiment, the information indicating the first position adjustment guidance and the information indicating the second position adjustment guidance include information indicating an index related to the adjustment, and the first position adjustment guidance and the second position adjustment guidance are included. The information indicating the position adjustment guidance index has a correlation. Therefore, the user can easily make an appropriate adjustment by adjusting the position of the display unit so that the two indices overlap.

  Although the first embodiment has been described using a television as an external device, a computer or the like may be used instead of the television. A program for sequentially displaying images corresponding to GxA (x = 1 to 16) in FIGS. 5 to 8 may be installed in a computer via a recording medium or the Internet. In this case, the user may manually advance the position adjustment guidance on the computer side in accordance with the position adjustment guidance on the head-mounted display 100. Further, the computer is connected to the terminal 103 of the head-mounted display 100, and a predetermined timing control signal is sent from the computer to the head-mounted display 100. Then, the control unit 135 receives the timing control signal, determines whether to display the image data supplied from the computer, and displays the content of the position adjustment guidance on the display unit 112 at an appropriate timing. Both position adjustment guidances may be synchronized as in the first embodiment.

  In the first embodiment, the display unit 112 and the television display are turned off during the position adjustment guidance. However, a uniform image (such as black) may be displayed instead of turning off. In addition, when any image is displayed on the display unit 112, the background image is displayed on the television, and when any image is displayed on the television, the background image is displayed on the display unit 112. Also good.

Second Embodiment
The second embodiment of the present invention will be described below with reference to the drawings. In the second embodiment, only different parts from the first embodiment will be described. The head mounted display of the second embodiment has the same configuration as the head mounted display 100 of the first embodiment. Therefore, illustration and description of the configuration of the head-mounted display of the second embodiment are omitted, and description will be made using the same reference numerals as those of FIGS. 1 and 3 of the first embodiment.

  The position adjustment guidance for the display unit 112 in the second embodiment will be described.

  In this embodiment, a case where position adjustment guidance is performed using the head-mounted display 100 and an adjustment index arranged outside the head-mounted display 100 will be described as an example. The adjustment index is an index printed on the outer box B of the head mounted display 100 as shown in FIG. 10A. This adjustment index is associated with the position adjustment guidance performed in the head-mounted display 100 and is printed in advance on the side surface of the outer box B or the like. In addition to the outer box, as shown in FIG. 10B, an adjustment index that can stand upright may be used. It may also be an adjustment index printed on paper or the like. Such an adjustment index may be prepared together with the head-mounted display 100, or may be obtained by a computer via the Internet and printed out. A method of using the adjustment index will be described later.

  The control unit 135 reproduces information related to the position adjustment guidance stored in the storage unit 134 on the display unit 112 and performs position adjustment guidance. Note that the timing for performing the position adjustment guidance may be a timing when the power of the head-mounted display 100 is turned on, or a timing based on a user instruction via the operation unit 120. In addition, the control unit 135 is positioned according to the usage history of the head-mounted display 100 (the number of uses, the cumulative usage time, the elapsed time from the last use of the head-mounted display 100 to the current use, etc.), and the like. You may determine the timing which performs adjustment guidance.

  In the present embodiment, as in the first embodiment, when the head-mounted display 100 is used, an enlarged image of the display unit 112 existing about 1 m from the user's eyes can be observed in a slightly looking down state. The position adjustment guidance for adjusting the position of the display unit 112 will be described as an example.

  Regarding the position adjustment guidance of the head-mounted display 100, the adjustment index is set to a position suitable for position adjustment (a position about 1 m from the user's eyes and slightly looking down from the user) in the instruction manual or the outer box. It is assumed that the layout and the explanation corresponding to G3A, G4A and G5A in FIG. 5 are described.

  The control unit 135 sequentially displays on the display unit 112 images that are substantially the same as those of G6a, G7A, and G8a to G16a in FIGS. However, in G10a, the control unit 135 visually observes the display unit 112 with the left eye and visually observes the adjustment index with the right eye, so that the two marks (G11A and the adjustment index mark) overlap each other. An image indicating that the position is to be adjusted is displayed. The user looks at the display unit 112 with the left eye and looks at the adjustment index with the right eye, and adjusts the position of the display unit 112 so that the two marks (G11A and the adjustment index mark) overlap. Since the index of G11A and the index for adjustment have a correlation, by performing such adjustment, when the head-mounted display 100 is used, an enlarged image of the display unit 112 existing about 1 m from the user's eye is obtained. The position of the display unit 112 can be adjusted so that it can be observed while looking down slightly. The same applies to G13a.

  Note that the position adjustment guidance described in the present embodiment is an example, and sentences, diagrams, images, and index images indicating the adjustment method are not limited to this example. The position adjustment guidance may be configured to be able to be stopped or paused at a timing desired by the user.

  As described above, according to the second embodiment, the head-mounted display is associated with the display unit that displays the image, the playback unit that plays back the position adjustment guidance of the display unit, and the adjustment index. A storage unit that stores information indicating at least the position adjustment guidance output to the display unit. Accordingly, as in the first embodiment, a display unit that mainly displays an image on one eye of the user and a head-mounted display that can be mounted on the user's head performs appropriate position adjustment of the display unit. Can be made.

  Further, according to the second embodiment, the information indicating the position adjustment guidance includes information indicating an index related to adjustment, and the index related to adjustment has a correlation with the index for adjustment. Therefore, the user can easily make an appropriate adjustment by adjusting the position of the display unit so that the two indices overlap.

  In the second embodiment, the printed material is described as an example of the adjustment index, but the printed material may not be the printed material. For example, the adjustment index may be displayed using a display device such as a computer or a TV.

  Moreover, in each said embodiment, when using the head mounted display 100, it displays so that the enlarged image of the display part 112 which exists about 1 m from a user's eyes can be observed in the state which looked down a little. The position adjustment guidance for adjusting the position of the unit 112 has been described as an example, but the present invention can be similarly applied to other adjustments. For example, the present invention can be similarly applied to the case where the position of the display unit 112 is adjusted so that different images can be observed between the left eye and the right eye when the head-mounted display 100 is used.

  Further, in each of the above embodiments, the position adjustment guidance using the display unit 112 has been described. However, a configuration in which position adjustment guidance based on sound using the speaker 111 is combined may be used. When combining the position adjustment guidance by voice, the voice information synchronized with the image displayed on the display unit 112 may be reproduced.

  Further, the present invention can be similarly applied to a head-mounted display other than the configuration described in the above embodiments. For example, the present invention can be similarly applied to a head-mounted display in which the display unit is slid in and out instead of an overhead arm-shaped head-mounted display that flips the display unit in the direction of the top of the head. Further, the present invention can be similarly applied to a head-mounted display in which the terminal and the main body described in this embodiment are integrated.

DESCRIPTION OF SYMBOLS 100 ... Head-mounted display, 112 ... Display part, 112a ... Support arm, 132 ... Connection part, 134 ... Memory | storage part, 135 ... Control part

Claims (1)

A head mounted display having a display unit for displaying an image on one eye of a user,
A playback unit for playing back the indicator for adjustment of the display unit;
The playback unit
A first index for adjusting the vertical position with respect to the user's eyes is displayed on the display unit, and the user can position the display unit in the vertical direction so that the upper and lower ends of the first index can be seen. A first adjustment mode for adjusting
A second indicator is displayed on the display unit, and a third indicator having a correlation with the second indicator displayed on the display unit is output to an external output device other than the head-mounted display, and the display A second adjustment mode in which the user adjusts the position of the display unit so that the second index displayed on the unit overlaps the third index displayed on the external output device;
Have
A head-mounted display in which the adjustment in the second adjustment mode is performed in the state in which the adjustment in the first adjustment mode is performed.

Images