Image display system

Abstract

[Problem] To provide an image display system by which a user can operate a terminal (smartphone, mobile phone, tablet, etc.) by using, for example, a toe, heel, finger, palm, or back of a hand to achieve the original intended purpose of the terminal (smartphone, mobile phone, tablet, etc.). [Solution] The present invention provides an image display system comprising: a foot-mounted terminal that is mounted on the foot of a user; a head-mounted image display device that is mounted on the head of the user and displays a visual display image to be visually recognized by the user; and an image display control device. The foot-mounted terminal is provided with: a toe keyboard unit that can be operated using the toes of the foot; and a heel keyboard unit that can be operated using the heel of the foot. The toe keyboard unit outputs a first (1) operation signal in accordance with an operation by the toes of the foot and the heel keyboard unit outputs a second operation signal in accordance with an operation by the heel. The image display control device controls the visual display image to be displayed on the head-mounted image display device in accordance with the first (1) operation signal and the second operation signal.

Description

Image display system

[0001] The present invention relates to an image display system.

[0002] Conventionally, electronic devices such as terminals (smartphones, mobile phones, tablets, etc.) have been designed to be operated using the upper limbs, particularly the fingers. However, in recent years, attempts have been made to design electronic devices to be operated using body parts, particularly toes, heels, etc. (see, for example, Patent Document 1).

[0003] Japanese Patent Application Laid-Open No. 2010-33526

[0004] However, in the technology proposed in Patent Document 1, it is difficult to achieve the original purpose of use of a terminal (smartphone, mobile phone, tablet, etc.) by operating the terminal (smartphone, mobile phone, tablet, etc.) using, for example, toes, heels, fingers, palms, fingernails, etc.

[0005] The present invention has been made in view of such a situation, and the main object thereof is to provide an image display system capable of achieving the original purpose of use of a terminal (smartphone, mobile phone, tablet, etc.) by operating the terminal (smartphone, mobile phone, tablet, etc.) using, for example, toes, heels, fingers, palms, fingernails, etc.

[0006] As a result of intensive research to solve the above object, the inventors of the present invention have succeeded in developing an image display system capable of achieving the original purpose of use of a terminal (smartphone, mobile phone, tablet, etc.) by operating the terminal (smartphone, mobile phone, tablet, etc.) using, for example, toes, heels, fingers, palms, fingernails, etc., and have completed the present invention.

[0007] In other words, the present invention provides an image display system comprising, as a first aspect, a foot-mounted terminal worn on a user's foot, a head-mounted image display device worn on the user's head to display a viewable display image for the user's view, and an image display control device, wherein the foot-mounted terminal includes a toe keyboard section that can be operated by the toes of the foot and a heel keyboard section that can be operated by the heel of the foot, the toe keyboard section outputs a first-first operation signal according to the operation by the toes, the heel keyboard section outputs a second operation signal according to the operation by the heel, and the image display control device controls the viewable display image to be displayed on the head-mounted image display device in accordance with the first-first operation signal and the second operation signal.

[0008] In the first side view image display system according to the present invention, the foot-mounted terminal may include a foot-mounted image display unit that displays a confirmation display image that can be viewed by the user, and the image control device may control the confirmation display image to be displayed on the foot-mounted image display unit in accordance with the first-1 operation signal and the second operation signal.

[0009] In the first side view image display system according to the present invention, the display image for viewing may be an image that displays the status of operation by the toes and / or the status of operation by the heel of the foot.

[0010] In the first side view image display system according to the present invention, the viewing display image may be an image that displays the situation after operation by the toes and / or after operation by the heel of the foot.

[0011] In the first side view image display system according to the present invention, the foot-mounted terminal and the head-mounted image display device may be wirelessly connected via the image display control device.

[0012] In the first side view image display system according to the present invention, the foot-mounted terminal may be positioned between the sole of the shoe and the user's foot while the user is wearing the shoe.

[0013] In the first side view image display system according to the present invention, the foot-mounted terminal may be placed on the sole of the user's foot when the user is not wearing shoes.

[0014] In the first side view image display system according to the present invention, the foot-mounted terminal may be a smartphone or a tablet.

[0015] In the first side view image display system according to the present invention, the smartphone or tablet may have durability such that it does not break even if stepped on by the user's foot.

[0016] In the first side view image display system according to the present invention, the external shape of the smartphone or tablet in a plan view as seen from the toe keyboard portion side and the heel keyboard portion side of the foot may be substantially the same as the external shape of the shoe in a plan view as seen from the side worn by the user.

[0017] In the first side view image display system according to the present invention, the head-mounted image display device may be a spectacle-type display device.

[0018] In the first side view image display system according to the present invention, the head-mounted image display device may be a head-mounted display.

[0019] In the first side view image display system according to the present invention, the head-mounted image display device may be a contact lens type display device.

[0020] Furthermore, as a second aspect of the present invention, an image display system is provided comprising: a foot-mounted terminal worn on the user's foot; a head-mounted image display device worn on the user's head to display a visual display image for the user's view; and an image display control device, wherein the foot-mounted terminal includes a toe icon display unit operable by the toes of the foot and a heel keyboard unit operable by the heel of the foot, the toe icon display outputs first and second operation signals according to the operation by the toes, the heel keyboard unit outputs a second operation signal according to the operation by the heel, and the image display control device controls the visual display image to be displayed on the head-mounted image display device in accordance with the first and second operation signals and the second operation signal.

[0021] In the second side view image display system according to the present invention, the display image for viewing may be an image that displays the status of operation by the toes and / or the status of operation by the heel of the foot.

[0022] In the second side view image display system according to the present invention, the viewing display image may be an image that displays the situation after operation by the toes and / or after operation by the heel of the foot.

[0023] In the second aspect of the image display system according to the present invention, the foot-mounted terminal and the head-mounted image display device may be wirelessly connected via the image display control device.

[0024] In the second side view image display system according to the present invention, the foot-mounted terminal may be positioned between the sole of the shoe and the user's foot while the user is wearing the shoe.

[0025] In the second aspect of the image display system according to the present invention, the foot-mounted terminal may be placed on the sole of the user's foot when the user is not wearing shoes.

[0026] In the second side view image display system according to the present invention, the foot-mounted terminal may be a smartphone or a tablet.

[0027] In the second aspect of the image display system according to the present invention, the smartphone or tablet may have durability such that it does not break even if stepped on by the user's foot.

[0028] In the second side view image display system according to the present invention, the external shape of the smartphone or tablet in a plan view as seen from the toe keyboard portion side and the heel keyboard portion side of the foot may be substantially the same as the external shape of the shoe in a plan view as seen from the side worn by the user.

[0029] In the second aspect of the image display system according to the present invention, the head-mounted image display device may be a spectacle-type display device.

[0030] In the second side view image display system according to the present invention, the head-mounted image display device may be a head-mounted display.

[0031] In the second side view image display system according to the present invention, the head-mounted image display device may be a contact lens type display device.

[0032] Furthermore, as a third aspect of the present invention, an image display system is provided comprising: a terminal; a head-mounted image display device worn on the user's head to display a viewable display image for the user's view; and an image display control device, wherein the terminal includes a first keyboard section and a second keyboard section, the first keyboard section outputs a third-1 operation signal according to an operation on the first keyboard section, the second keyboard section outputs a fourth-1 operation signal according to an operation on the second keyboard section, and the image display control device controls the viewable display image to be displayed on the head-mounted image display device in accordance with the third-1 operation signal and the fourth-1 operation signal.

[0033] In the third aspect of the image display system according to the present invention, the terminal may include an image display unit that displays a confirmation display image that can be viewed by the user, and the image control device may control the confirmation display image to be displayed on the image display unit in accordance with the 3-1 operation signal and the 4-1 operation signal.

[0034]

[28] In the third side view image display system according to the present invention, the viewable display image may be an image that displays the status of operation on the first keyboard section and / or the status of operation on the second keyboard section.

[0035] In the third aspect image display system according to the present invention, the display image for viewing may be an image that displays the status after operation on the first keyboard section and / or the status after operation on the second keyboard section.

[0036] In the third aspect of the image display system according to the present invention, the terminal and the head-mounted image display device may be wirelessly connected via the image display control device.

[0037] In the third aspect of the image display system according to the present invention, the terminal may be a smartphone or a tablet.

[0038] In the third aspect of the image display system according to the present invention, the head-mounted image display device may be a spectacle-type display device.

[0039] In the third aspect of the image display system according to the present invention, the head-mounted image display device may be a head-mounted display.

[0040] In the third aspect of the image display system according to the present invention, the head-mounted image display device may be a contact lens type display device.

[0041] Furthermore, in the present invention, as a fourth aspect, there is provided an image display system including a terminal, a head-mounted image display device that is worn on the user's head and displays a visual display image for the user to view, and an image display control device. The terminal includes an icon display unit and a third keyboard unit. The icon display unit outputs a third-2 operation signal according to an operation on the icon display unit. The keyboard unit outputs a fourth-2 operation signal according to an operation on the third keyboard unit. The image display control device controls the visual display image to be displayed on the head-mounted image display device according to the third-2 operation signal and the fourth-2 operation signal.

[0042] In the image display system according to the fourth aspect of the present invention, the visual display image may be an image that displays the status of an operation on the icon display unit and / or the status of an operation on the third keyboard unit.

[0043] In the image display system according to the fourth aspect of the present invention, the visual display image may be an image that displays the status after an operation on the icon display unit and / or the status after an operation on the third keyboard unit.

[0044] In the image display system according to the fourth aspect of the present invention, the terminal and the head-mounted image display device may be wirelessly connected via the image display control device.

[0045] In the image display system according to the fourth aspect of the present invention, the terminal may be a smartphone or a tablet.

[0046] In the image display system according to the fourth aspect of the present invention, the head-mounted image display device may be a glasses-type display device.

[0047] In the image display system according to the fourth aspect of the present invention, the head-mounted image display device may be a head-mounted display.

[0048] In the image display system according to the fourth aspect of the present invention, the head-mounted image display device may be a contact lens-type display device.

[0049] According to the present invention, by operating a terminal (such as a smartphone, mobile phone, tablet, etc.), for example, using toes, heels, fingers, palms, fingernails, etc., the terminal (such as a smartphone, mobile phone, tablet, etc.) can be operated to achieve the original purpose of using the terminal (such as a smartphone, mobile phone, tablet, etc.). Note that the effects described here are not necessarily limited and may be any of the effects described in this specification.

[0050] FIG. 1 shows a configuration example 1 of an image display system according to a first embodiment to which the present invention is applied, and is a diagram showing a user using the image display system of the first embodiment. FIG. 2 shows a configuration example 2 of an image display system according to a second embodiment to which the present invention is applied, and is a diagram showing a user using the image display system of the second embodiment. FIG. 3 shows a configuration example 3 of an image display system according to a third embodiment to which the present invention is applied, and is a diagram showing a user using the image display system of the third embodiment. FIG. 4 is a perspective view showing a configuration example of a glasses-type head-mounted image display device included in the image display system of the first embodiment, the image display system of the second embodiment, or the image display system of the third embodiment to which the present invention is applied. FIG. 5 is a block diagram showing a configuration example 1 of an image display system according to the present invention. FIG. 6 is a block diagram showing a configuration example 2 of an image display system according to the present invention. FIG. 7 is a diagram showing a configuration example 1 of a foot-mounted terminal included in the configuration example 1 of the image display system according to the first embodiment to which the present invention is applied. FIG. 8 is a diagram showing a configuration example 2 of a foot-mounted terminal included in the configuration example 2 of the image display system according to the first embodiment to which the present invention is applied.

[0051] Hereinafter, preferred embodiments for implementing the present invention will be described. The embodiments described below show an example of a representative embodiment of the present invention, and the scope of the present invention is not construed narrowly thereby.

[0052] Unless otherwise specified, in drawings, "up" means the upper direction or upper side in the drawing, "down" means the lower direction or lower side in the drawing, "left" means the left direction or left side in the drawing, and "right" means the right direction or right side in the drawing. In addition, identical or equivalent elements or components are denoted by the same reference numeral in the drawings, and redundant explanations are omitted.

[0053] The explanation will proceed in the following order: 1. Overview of the present invention 2. First embodiment (Example 1 of an image display system) 3. Second embodiment (Example 2 of an image display system) 4. Third embodiment (Example 3 of an image display system)

[0054] <1. Overview of the Invention> First, the overview of the present invention will be explained using Figures 5 and 6.

[0055] Figure 5 is a block diagram showing an example configuration of an image display system according to the present invention, and more specifically, it is a block diagram showing the configuration of the image display system 100.

[0056] The image display system 100 comprises a foot-mounted terminal 1 worn on the user's foot, a head-mounted image display device 2 worn on the user's head to display a visual display image for the user to see, and an image display control device 3.

[0057] If the foot-mounted terminal 1 is either foot-mounted terminal 1-1 or foot-mounted terminal 1-2, it includes a toe keyboard section (not shown in Figure 5) that can be operated by the toes, and a heel keyboard section (not shown in Figure 5) that can be operated by the heel. The toe keyboard section outputs a first-first operation signal S1 to the image display control device 3 according to the operation by the toes, and the heel keyboard section outputs a second operation signal S2 to the image display control device 3 according to the operation by the heel. The image display control device 3 controls the display image to be shown on the head-mounted image display device 2 according to the first-first operation signal S1 and the second operation signal S2. The image display control device 3 outputs a controlled first-first control operation signal G1 to the head-mounted image display device 2, and the image display control device 3 outputs a controlled second control operation signal G2 to the head-mounted image display device 2, and the head-mounted image display device 2 displays a display image for the user to view. In addition, the image display control device 3 outputs a controlled first-first control operation signal W1 to the foot-mounted terminal 1-1 or 1-2, and the image display control device 3 outputs a controlled second control operation signal W2 to the foot-mounted terminal 1-1 or 1-2, and evaluates the reliability of the first-first operation signal S1 and the second operation signal S2.

[0058] If the foot-mounted terminal 1 is one of the foot-mounted terminals 1-3, it includes a toe icon display unit (not shown in Figure 5) that can be operated with the toes, and a heel keyboard unit (not shown in Figure 5) that can be operated with the heel. The toe icon display unit outputs a first-second operation signal S1 to the image display control device 3 according to the operation by the toes, and the heel keyboard unit outputs a second operation signal S2 to the image display control device 3 according to the operation by the heel. The image display control device 3 controls the display image to be shown on the head-mounted image display device 2 according to the first-second operation signal S1 and the second operation signal S2. The image display control device 3 outputs a controlled first-second control operation signal G1 to the head-mounted image display device 2, and the image display control device 3 outputs a controlled second control operation signal G2 to the head-mounted image display device 2, and the head-mounted image display device 2 displays a display image for the user to view. Furthermore, the image display control device 3 outputs a controlled first-second control operation signal W1 to the foot-mounted terminal 1-1 or 1-2, and the image display control device 3 outputs a controlled second control operation signal W2 to the foot-mounted terminal 1-1 or 1-2, and evaluates the reliability of the first-first operation signal S1 and the second operation signal S2.

[0059] In the image display system 100, the display image for viewing may be an image showing the status of operation by the toes and / or operation by the heel, or an image showing the status after operation by the toes and / or operation by the heel.

[0060] In the image display system 100, the foot-mounted terminal 1 (foot-mounted terminal 1-1, 1-2, or 1-3) and the head-mounted image display device 2 may be connected wirelessly via the image display control device 3, or they may be connected by wire.

[0061] In the image display system 100, the foot-mounted terminal 1 (foot-mounted terminal 1-1, 1-2, or 1-3) may be placed between the sole of the shoe and the user's foot (sole) when the user is wearing shoes, or it may be placed on the sole of the user's foot when the user is not wearing shoes.

[0062] According to the image display system 100, the foot-mounted terminal 1 (foot-mounted terminals 1-1, 1-2, or 1-3) (smartphone, mobile phone, tablet, etc.) can be operated using the toes and heels of the feet, thereby achieving the intended purpose of use of the terminal (smartphone, mobile phone, tablet, etc.). Here, the intended purpose of use of the terminal (smartphone, mobile phone, tablet, etc.) includes, for example, internet searching, email, games, and photography. If the foot-mounted terminal 1-1, 1-2, or 1-3 is a smartphone or tablet, the smartphone or tablet may have durability such that it does not break even when stepped on by the user's feet. Furthermore, the external shape of the smartphone or tablet in a plan view from the toe keyboard side and the heel keyboard side may be substantially the same as the external shape of the shoe in a plan view from the side worn by the user. Furthermore, even if the foot-mounted terminal 1-1, 1-2, or 1-3 is a device other than a smartphone or tablet, it may have durability that prevents it from being broken even when stepped on by the user's foot, and the external shape of the smartphone or tablet in a plan view from the toe keyboard section and the heel keyboard section may be substantially the same as the external shape of the shoe in a plan view from the side the user wears.

[0063] The head-mounted image display device 2 may be a glasses-type display device, a head-mounted display (for example, a goggle-type head-mounted display), or a contact lens-type display device.

[0064] The image display system 100 can be effectively applied when sitting at a desk and working, when riding a train (standing on the train, sitting on a train seat, etc.), when cooking, when eating, etc.

[0065] Figure 6 is a block diagram showing an example configuration of the image display system according to the present invention, and more specifically, it is a block diagram showing the configuration of the image display system 104.

[0066] The image display system 104 comprises a terminal 50, a head-mounted image display device 2 that is worn on the user's head and displays a viewable display image for the user to see, and an image display control device 3.

[0067] The terminal 50 includes a first keyboard unit (not shown in Figure 6) and a second keyboard unit (not shown in Figure 6). The first keyboard unit outputs a third-first operation signal S3 to the image display control device 3 in accordance with the operation on the first keyboard unit, and the second keyboard unit outputs a fourth-first operation signal S4 to the image display control device 3 in accordance with the operation on the second keyboard unit. The image display control device 3 controls the display image to be shown on the head-mounted image display device 2 in accordance with the third-first operation signal S3 and the fourth-first operation signal S4. The image display control device 3 outputs a controlled third-first control operation signal G3 to the head-mounted image display device 2, and the image display control device 3 outputs a controlled fourth-first control operation signal G4 to the head-mounted image display device 2, and the head-mounted image display device 2 displays a display image for the user to view. Furthermore, the image display control device 3 outputs a controlled third-first control operation signal W3 to the terminal 50, and the image display control device 3 outputs a controlled fourth-first control operation signal W4 to the terminal 50, and evaluates the reliability of the third-first operation signal S3 and the fourth-first operation signal S4.

[0068] The terminal 50 includes an icon display unit (not shown in Figure 6) and a keyboard unit (not shown in Figure 6). The third keyboard unit outputs a third-second operation signal S3 to the image display control device 3 according to the operation on the icon display unit, and the third keyboard unit outputs a fourth-second operation signal S4 to the image display control device 3 according to the operation on the third keyboard unit. The image display control device 3 controls the display image to be shown on the head-mounted image display device 2 according to the third-second operation signal S3 and the fourth-second operation signal S4. The image display control device 3 outputs a controlled third-second control operation signal G3 to the head-mounted image display device 2, and the image display control device 3 outputs a controlled fourth-second control operation signal G4 to the head-mounted image display device 2, and the head-mounted image display device 2 displays a display image for the user to view. Furthermore, the image display control device 3 outputs a controlled third-second control operation signal W3 to the terminal 50, and the image display control device 3 outputs a controlled fourth-second control operation signal W4 to the terminal 50, and evaluates the reliability of the third-second operation signal S3 and the fourth-second operation signal S4.

[0069] In the image display system 104, the display image for viewing may be an image that shows the status of operation on the first keyboard section and / or the status of operation on the second keyboard section, or an image that shows the status after operation on the icon display section and / or the status after operation on the keyboard section.

[0070] In the image display system 104, the display image for viewing may be an image that shows the status of operation on the icon display unit and / or the status of operation on the third keyboard unit, or it may be an image that shows the status after operation on the icon display unit and / or the status after operation on the keyboard unit.

[0071] In the image display system 104, the terminal 50 and the head-mounted image display device 2 may be connected wirelessly via the image display control device 3, or they may be connected by wire.

[0072] In the image display system 104, the foot-mounted terminal 1 (foot-mounted terminal 1-1, 1-2, or 1-3) may be positioned between the sole of the shoe and the user's foot (sole) when the user is wearing shoes, or it may be positioned on the sole of the user's foot when the user is not wearing shoes.

[0073] According to the image display system 104, the terminal 50 (smartphone, mobile phone, tablet, etc.) can be operated using, for example, toes, heels, fingers, palms, backs of hands, etc., to achieve the intended use of the terminal (smartphone, mobile phone, tablet, etc.). The intended use of the terminal (smartphone, mobile phone, tablet, etc.) can be, for example, internet searches, email, games, and photography.

[0074] The image display system 104 can be effectively applied when sitting at a desk and working, when riding a train (standing on the train, sitting on a train seat, etc.), when cooking, when eating, etc.

[0075] Furthermore, the image display system 104 can be effectively applied when the terminal 50 cannot be visually confirmed, for example, when the terminal 50 is placed in the pocket of the jacket or trousers (pants) worn by the user, and the first keyboard unit, second keyboard unit, icon display unit, or third keyboard unit is operated using fingers, palm, back of hand, etc.

[0076] The embodiments of the present invention will be described below in a specific and detailed manner.

[0077] <2. First Embodiment (Example 1 of Image Display System)> The image display system of the first embodiment (Example 1 of Image Display System) according to the present invention will be described with reference to Figure 1. Furthermore, the glasses-type head-mounted image display device included in the image display system of the first embodiment (Example 1 of Image Display System) according to the present invention, as well as the image display system of the second embodiment (Example 2 of Image Display System) and the image display system of the third embodiment (Example 3 of Image Display System) according to the present invention, which will be described later, will be explained with reference to Figures 7 and 8.

[0078] Figure 1 shows an example configuration of an image display system of a first embodiment to which the present invention is applied, and is a diagram showing a user using the image display system of the first embodiment. Specifically, it shows the configuration of the image display system 101 and is a diagram showing a user 1000 using the image display system 101.

[0079] Figure 4 is a perspective view showing an example of the configuration of a spectacle-type head-mounted image display device included in the image display system of the first embodiment to which the present invention is applied, the image display system of the second embodiment described later, or the image display system of the third embodiment. Specifically, it is a perspective view showing the configuration of a spectacle-type head-mounted image display device 2 included in the image display system 101, the image display system 102, or the image display system 103.

[0080] Figure 7 is a diagram showing an example configuration 1 of a foot-mounted terminal included in an example configuration 1 of an image display system to which the present invention is applied. Specifically, it shows a plan view (upper view of Figure 7) and a cross-sectional view (lower view of Figure 7) of the foot-mounted terminal 1-1.

[0081] Figure 8 shows an example configuration 2 of a foot-mounted terminal included in an example configuration 1 of an image display system to which the present invention is applied. Specifically, it shows a plan view (upper view in Figure 8) and a cross-sectional view (lower view in Figure 8) of the foot-mounted terminal 1-1.

[0082] The image display system 101 will be explained using Figure 1.

[0083] The image display system 101 includes a foot-mounted terminal 1-1 that is attached to the user 1000's foot 500 (more specifically, below the foot 500 (sole)), a head-mounted image display device 2 that is attached to the user 1000's head 600 and displays a display image for the user 1000 to view, and an image display control device (not shown in Figure 1). As shown in Figure 1, the foot-mounted terminal 1-1 is positioned between the sole 501-1 of the shoe 501 and the user 1000's foot 500 (sole of the foot 500) when the user 1000 is wearing the shoe 501.

[0084] The foot-mounted terminal 1-1 includes a toe keyboard section 11-1 that can be operated by the toes of the foot 500, and a heel keyboard section 12-1 that can be operated by the heel of the foot 500. The heel keyboard section 12-1 consists of a key 12-1-1 that can be operated on the left side of the heel of the foot 500, and a key 12-1-2 that can be operated on the right side of the heel of the foot 500.

[0085] As described above, the foot-mounted terminal 1-1 is attached to the user 1000's foot 500 (i.e., left foot) and operated by the foot 500 (i.e., left foot). However, the foot-mounted terminal 1-1 may also be attached to the user 1000's right foot and operated by the right foot, or it may be attached to both the user 1000's left and right feet and operated by both the left and right feet.

[0086] The toe keyboard section 11-1 outputs a first-first operation signal in accordance with the operation of the toes of the foot 500, and the heel keyboard section 12-1 outputs a second operation signal in accordance with the operation of the heel of the foot 500.

[0087] The image display control device controls the display image to be shown on the head-mounted image display device 2 in response to the first-first operation signal and the second operation signal. Although the image display control device is not shown in Figure 1, it may be incorporated into the foot-mounted terminal 1-1, incorporated into the head-mounted image display device 2, or provided separately and independently from the foot-mounted terminal 1-1 and the head-mounted image display device 2 in the image display system 101. If the image display control device is provided separately and independently from the foot-mounted terminal 1-1 and the head-mounted image display device 2, the image display control device may be attached to a part of the user 1000's body or carried by the user 1000.

[0088] Figures 7 and 8 will be used to explain the foot-mounted terminal 1-1.

[0089] The cross-sectional diagrams shown in Figure 7 and Figure 8 show the foot-mounted terminal 1-1 cut in a direction substantially parallel to the height direction from the upper part, which is the head 600 of the user 1000, to the lower part, which is the feet 500 of the user 1000.

[0090] As shown in Figures 7 and 8, in the foot-mounted terminal 1-1, the position of the toe keyboard section 11-1 is lower than the position of the heel keyboard section 12-1 in a direction approximately parallel to the height direction from the upper part, the user's head 600, to the lower part, the user's feet 500, and the toe keyboard section 11-1 and the toes of the foot 500 are separated. This prevents the user from having to lift their toes each time they input, as this would be tiring. Therefore, during operation, the toes of the foot 500 can be kept away from the operation section (toe keyboard section 11-1), and the range of motion of the toes of the foot 500 can be increased. Furthermore, lowering the front (towards the toe keyboard section 11-1) from the upper edge of the arch of the foot makes the toe keyboard section 11-1 even easier to operate.

[0091] As shown in Figures 7 and 8, the position of the toe keyboard section placement area 1-1A of the foot-mounted terminal 1-1, where the toe keyboard section 11-1 is located, is below (below in Figures 7 and 8) the position of the heel keyboard section placement area 1-1B of the foot-mounted terminal 1-1, where the heel keyboard section 12-1 is located. In Figure 7, a sloped area 1-1C of the foot-mounted terminal is formed between the toe keyboard section placement area 1-1A and the heel keyboard section placement area 1-1B, and in Figure 8, a flat (planar) area 1-1D of the foot-mounted terminal is formed between the toe keyboard section placement area 1-1A and the heel keyboard section placement area 1-1B.

[0092] In addition, in the foot-mounted terminal 1-1, the position of the toe keyboard section 11-1 may be approximately flush with the position of the heel keyboard section 12-1 in a direction substantially parallel to the height direction from the upper part, which is the head 600 of the user 1000, to the lower part, which is the foot 500.

[0093] Furthermore, the distance required to flick the big toe of user 1000's foot 500 from a first direction (e.g., left), which is approximately perpendicular to the vertical direction from the upper part of user 1000's foot 500 to the lower part of user 1000's heel, to a second direction (e.g., right), which is the opposite direction to the first direction, is smaller than the distance required to flick from other first directions (e.g., directions other than left, upward) to other second directions (e.g., directions other than right, downward; other second directions may or may not be the opposite direction to other first directions). This is because, compared to the front-to-back direction of the shoe, there is less clearance in the left-to-right direction, and because there is a joint, the range of motion in the front-to-back direction 8 (e.g., up-to-down direction) is wider.

[0094] When a predetermined toe of the user 1000's foot 500 is bent, the area of ​​the first button portion B2, which constitutes the toe keyboard portion 11-1 and is tapped with the bent foot, is larger in a plan view from the user 1000's head 600 than the area of ​​the second button portion B1, which constitutes the toe keyboard portion 11-1 and is tapped with the unbent foot, when the predetermined toe of the user 1000's foot 500 is not bent, is larger in a plan view from the user 1000's head 600. For convenience, the area of ​​the first button portion B2 and the area of ​​the second button portion B1 shown in Figures 7 and 8 are approximately the same.

[0095] Figure 4 will be used to explain the glasses-type head-mounted image display device 2.

[0096] Figure 4 shows the configuration of the glasses-type head-mounted image display device 2 as seen from the user 1000's head 600 side. Figure 4 shows the side of the glasses-type head-mounted image display device 2 that is in contact with the user 1000's head 600, in other words, the side visible to the user 1000's right and left eyes. To put it another way, the back sides of the right light guide plate 260 and the left light guide plate 280 are visible.

[0097] The glasses-type head-mounted image display device 2 is a wearable device that is attached to the head 600 of the user 1000 and has the shape of glasses. The glasses-type head-mounted image display device 2 has a main body having a right holding part 210, a left holding part 230, and a front frame 270, and is equipped with a right display unit 220, a left display unit 240, a right light guide plate 260, and a left light guide plate 280.

[0098] The right holding portion 210 and the left holding portion 230 each extend rearward from both ends of the front frame 270, and, like the temples (arms) of eyeglasses, hold the eyeglass-type head-mounted image display device 2 on the user's head 600.

[0099] The right light guide plate 260 and the left light guide plate 280 are provided on the front frame 270. The right light guide plate 260 is positioned in front of the user 1000's right eye when the glasses-type head-mounted image display device 2 is worn, allowing the right eye to view the image. The left light guide plate 280 is positioned in front of the user 1000's left eye when the glasses-type head-mounted image display device 2 is worn, allowing the left eye to view the image.

[0100] The front frame 270 has a shape in which one end of the right light guide plate 260 and one end of the left light guide plate 280 are connected to each other. This connection position corresponds to the space between the eyebrows of the user 1000 when the user 1000 is wearing the glasses-type head-mounted image display device 2. The front frame 270 may be provided with a nose rest portion at the connection position between the right light guide plate 260 and the left light guide plate 280, which contacts the nose of the user 1000 when the glasses-type head-mounted image display device 2 is being worn. In this case, the nose rest portion, the right holding portion 210, and the left holding portion 230 can hold the glasses-type head-mounted image display device 2 on the head 600 of the user 1000. Furthermore, a belt (not shown) that contacts the back of the user's head when the glasses-type head-mounted image display device 2 is worn may be connected to the right holding part 210 and the left holding part 230. In this case, the belt can hold the glasses-type head-mounted image display device 2 on the user's head 600.

[0101] The right display unit 220 enables the display of an image using the right light guide plate 260. The right display unit 220 is provided on the right holding part 210 and is located near the right side of the user's head 600 when worn. The left display unit 240 enables the display of an image using the left light guide plate 280. The left display unit 240 is provided on the left holding part 230 and is located near the left side of the user's head 600 when worn.

[0102] The right light guide plate 260 and the left light guide plate 280 are optical parts formed from a light-transmitting resin or the like, for example, prisms, that guide the image light output by the right display unit 220 and the left display unit 240 to the user 1000's eyes. A dimming plate (not shown) may be provided on the surface of the right light guide plate 260 and the left light guide plate 280. The dimming plate is an optical element on a thin plate with different transmittances depending on the wavelength range of light, and functions as a so-called wavelength filter. The dimming plate is positioned, for example, to cover the front side of the front frame 270, which is the side opposite to the user's eyes. By appropriately selecting the optical characteristics of this dimming plate, the transmittance of light in any wavelength range, such as visible light, infrared light, and ultraviolet light, can be adjusted, and the amount of ambient light that enters the right light guide plate 260 and the left light guide plate 280 from the outside and passes through the right light guide plate 260 and the left light guide plate 280 can be adjusted.

[0103] The glasses-type head-mounted image display device 2 includes an optical system that guides the image display light generated by the right display unit 220 and the left display unit 240, respectively, to the right light guide plate 260 and the left light guide plate 280. The image display light guided to the right light guide plate 260 and the left light guide plate 280 enters the right and left eyes of the user 1000, causing the user 1000 to see a virtual image. As a result, the glasses-type head-mounted image display device 2 displays an image.

[0104] When ambient light enters the user 1000's eyes from the front of the user 1000, passing through the right light guide plate 260 and the left light guide plate 280, both the image display light constituting the virtual image and the ambient light enter the user 1000's eyes, and the visibility of the virtual image is affected by the intensity of the ambient light. For this reason, for example, by attaching a dimming plate to the front frame 270 and appropriately selecting or adjusting the optical characteristics of the dimming plate, the ease of visibility of the virtual image can be adjusted.

[0105] In the case of a head-mounted display, a dimming plate having sufficient light transmittance to allow the user 1000 wearing the head-mounted display to at least see the outside scenery can be used. Furthermore, using a dimming plate is expected to protect the right light guide plate 260 and the left light guide plate 280, and to suppress damage to the right light guide plate 260 and the left light guide plate 280, as well as the accumulation of dirt. The dimming plate may be detachable from the front frame 270, or from the right light guide plate 260 and the left light guide plate 280, or multiple types of dimming plates may be interchangeable, or the dimming plate may be omitted.

[0106] In Figure 4, the half-mirror 2610 that illuminates the image display light to the user 1000's right eye and the half-mirror 2810 that illuminates the image light to the left eye appear as roughly rectangular areas. Furthermore, the entire right light guide plate 260 and left light guide plate 280, including the half-mirrors 2610 and 2810, transmit ambient light. As a result, the user 1000 can see the outside scenery through the entire right light guide plate 260 and left light guide plate 280, and sees roughly rectangular images displayed at the positions of the half-mirrors 2610 and 2810.

[0107] Furthermore, the glasses-type head-mounted image display device 2, or head-mounted display described in detail, may be accompanied by earphones (components having earphone functionality) and / or a microphone (components having microphone functionality).

[0108] The contents described above regarding the first embodiment of the present invention (Example 1 of an image display system) can be applied to the second and third embodiments of the present invention described later, unless there are any particular technical inconsistencies.

[0109] <3. Second Embodiment (Example 2 of Image Display System)> The image display system of the second embodiment (Example 2 of Image Display System) according to the present invention will be described with reference to Figure 2.

[0110] Figure 2 shows an example configuration of an image display system of a second embodiment to which the present invention is applied, and is a diagram showing a user using the image display system of the second embodiment. Specifically, it shows the configuration of the image display system 102 and is a diagram showing a user 1000 using the image display system 102.

[0111] The image display system 102 will be explained using Figure 2.

[0112] The image display system 102 includes a foot-mounted terminal 1-2 that is attached to the user 1000's foot 500 (more specifically, below the foot 500 (sole)), a head-mounted image display device 2 that is attached to the user 1000's head 600 and displays a display image for the user 1000 to view, and an image display control device (not shown in Figure 2). As shown in Figure 2, the foot-mounted terminal 1-2 is positioned between the sole 501-1 of the shoe 501 and the user 1000's foot 500 (sole of the foot 500) when the user 1000 is wearing the shoe 501.

[0113] The foot-mounted terminal 1-2 includes a toe keyboard section 11-2 that can be operated by the toes of the foot 500, and a heel keyboard section 12-2 that can be operated by the heel of the foot 500. The heel keyboard section 12-2 consists of a key 12-2-1 that can be operated on the left side of the heel of the foot 500, and a key 12-2-2 that can be operated on the right side of the heel of the foot 500.

[0114] Furthermore, the foot-mounted terminal 1-2 includes a foot-mounted image display unit 13-2 that displays a confirmation image that the user 1000 can verify. As shown in Figure 2, several icons are displayed on the foot-mounted image display unit 13-2, and the user 1000 can verify the accuracy of the operation of the toe keyboard section with the toes of the foot 500 and / or the operation of the heel keyboard section 12-2 with the heel of the foot 500 by removing the foot-mounted terminal 1-2 from the foot 500 and visually checking the foot-mounted image display unit 13-2.

[0115] As described above, the foot-mounted terminal 1-2 is attached to the user 1000's foot 500 (i.e., left foot) and operated by the foot 500 (i.e., left foot). However, the foot-mounted terminal 1-2 may also be attached to the user 1000's right foot and operated by the right foot, or it may be attached to both the user 1000's left and right feet and operated by both the left and right feet.

[0116] The toe keyboard section 11-2 outputs a first-first operation signal in accordance with the operation of the toes of the foot 500, and the heel keyboard section 12-2 outputs a second operation signal in accordance with the operation of the heel of the foot 500.

[0117] The image display control device controls the display image to be shown on the head-mounted image display device 2 in response to the first-first operation signal and the second operation signal. Although the image display control device is not shown in Figure 2, it may be incorporated into the foot-mounted terminal 1-2, incorporated into the head-mounted image display device 2, or provided separately and independently from the foot-mounted terminal 1-2 and the head-mounted image display device 2 in the image display system 102. If the image display control device is provided separately and independently from the foot-mounted terminal 1-2 and the head-mounted image display device 2, the image display control device may be attached to a part of the user 1000's body or carried by the user 1000.

[0118] The contents described above with respect to Figures 7 and 8 (the contents described in paragraphs 0088 to 0094) can be applied to a second embodiment of the present invention (Example 2 of the image display system).

[0119] The contents described above regarding the second embodiment of the present invention (Example 2 of the image display system) can be applied to the first embodiment of the present invention described above and the third embodiment of the present invention described later, unless there are any particular technical inconsistencies.

[0120] <4. Third Embodiment (Example 3 of Image Display System)> The image display system of the third embodiment (Example 3 of Image Display System) according to the present invention will be described with reference to Figure 3.

[0121] Figure 3 shows an example configuration of an image display system of a third embodiment to which the present invention is applied, and is a diagram showing a user using the image display system of the third embodiment. Specifically, it shows the configuration of the image display system 103 and is a diagram showing a user 1000 using the image display system 103.

[0122] The image display system 103 will be explained using Figure 3.

[0123] The image display system 103 includes a foot-mounted terminal 1-3 attached to the user 1000's foot 500 (more specifically, below the foot 500 (sole)), a head-mounted image display device 2 attached to the user 1000's head 600 that displays a visual display image for the user 1000 to see, and an image display control device (not shown in Figure 3). As shown in Figure 3, the foot-mounted terminal 1-3 is positioned between the sole 501-1 of the shoe 501 and the user 1000's foot 500 (sole of the foot 500) when the user 1000 is wearing the shoe 501.

[0124] The foot-mounted terminal 1-3 includes an icon display unit 13-3 that can be operated by the toes of the foot 500, and a heel keyboard unit 12-3 that can be operated by the heel of the foot 500. The heel keyboard unit 12-3 consists of a key 12-3-1 that can be operated on the left side of the heel of the foot 500, and a key 12-3-2 that can be operated on the right side of the heel of the foot 500.

[0125] As described above, the foot-mounted terminal 1-3 is attached to the user 1000's foot 500 (i.e., left foot) and operated by the foot 500 (i.e., left foot). However, the foot-mounted terminal 1-3 may also be attached to the user 1000's right foot and operated by the right foot, or it may be attached to both the user 1000's left and right feet and operated by both the left and right feet.

[0126] The icon display unit 13-3 outputs first and second operation signals according to the operation of the toes of the foot 500, and the heel keyboard unit 12-3 outputs a second operation signal according to the operation of the heel of the foot 500.

[0127] The image display control device controls the display image to be shown on the head-mounted image display device 2 in response to the first and second operation signals and the second operation signal. Although the image display control device is not shown in Figure 3, it may be incorporated into the foot-mounted terminals 1-3, incorporated into the head-mounted image display device 2, or provided separately and independently from the foot-mounted terminals 1-3 and the head-mounted image display device 2 in the image display system 103. If the image display control device is provided separately and independently from the foot-mounted terminals 1-3 and the head-mounted image display device 2, the image display control device may be attached to a part of the user 1000's body or carried by the user 1000.

[0128] The information described above with respect to Figures 7 and 8 (the information described in paragraphs 0088 to 0094) can be applied to a third embodiment of the present invention (Example 3 of the image display system).

[0129] The contents described above regarding the third embodiment of the present invention (Example 3 of the image display system) can be applied to the first and second embodiments of the present invention described above, unless there are any particular technical inconsistencies.

[0130] It should be noted that the present invention is not limited to the embodiments described above, and various modifications are possible without departing from the spirit of the invention.

[0131] The present invention can take the following configuration: [1] An image display system comprising: a foot-mounted terminal worn on the user's foot; a head-mounted image display device worn on the user's head and displaying a visual display image for the user to see; and an image display control device, wherein the foot-mounted terminal includes a toe keyboard section that can be operated by the toes of the foot and a heel keyboard section that can be operated by the heel of the foot, the toe keyboard section outputs a first-first operation signal according to the operation by the toes, the heel keyboard section outputs a second operation signal according to the operation by the heel, and the image display control device controls the visual display image to be displayed on the head-mounted image display device in accordance with the first-first operation signal and the second operation signal.

[0132] [2] The image display system according to [1], wherein the foot-mounted terminal includes a foot-mounted image display unit that displays a confirmation display image that can be viewed by the user, and the image control device controls the confirmation display image to be displayed on the foot-mounted image display unit in accordance with the 1-1 operation signal and the 2 operation signal.

[0133] [3] The image display system according to [1] or [2], wherein the visual display image is an image that displays the status of operation by the toes and / or the status of operation by the heel of the foot.

[0134] [4] The image display system according to any one of [1] to [3], wherein the visual display image is an image that displays the situation after operation by the toes and / or after operation by the heel of the foot.

[0135] [5] The image display system according to any one of [1] to [4], wherein the foot-mounted terminal and the head-mounted image display device are wirelessly connected via the image display control device.

[0136] [6] The image display system according to any one of [1] to [5], wherein the foot-mounted terminal is positioned between the sole of the shoe and the user's foot while the user is wearing the shoe.

[0137] [7] The image display system according to any one of [1] to [5], wherein the foot-mounted terminal is placed on the sole of the user's foot when the user is not wearing shoes.

[0138] [8] The image display system according to any one of [1] to [7], wherein the foot-mounted terminal is a smartphone or a tablet.

[0139] [9] The image display system according to [8], wherein the smartphone or tablet has durability such that it does not break even when stepped on by the user's foot.

[0140]

[10] The image display system according to [8] or [9], wherein the external shape of the smartphone or tablet in a plan view as seen from the toe keyboard portion side and the heel keyboard portion side of the foot is substantially the same as the external shape of the shoe in a plan view as seen from the side worn by the user.

[0141]

[11] The image display system according to any one of [1] to

[10] , wherein the head-mounted image display device is a spectacle-type display device.

[0142]

[12] The image display system according to any one of [1] to

[10] , wherein the head-mounted image display device is a head-mounted display.

[0143]

[13] The image display system according to any one of [1] to

[10] , wherein the head-mounted image display device is a contact lens type display device.

[0144]

[14] An image display system comprising: a foot-mounted terminal worn on the user's foot; a head-mounted image display device worn on the user's head and displaying a viewable display image for the user's view; and an image display control device, wherein the foot-mounted terminal includes a toe icon display unit operable by the toes of the foot and a heel keyboard unit operable by the heel of the foot, the toe icon display outputs first and second operation signals according to the operation by the toes, the heel keyboard unit outputs a second operation signal according to the operation by the heel, and the image display control device controls the viewable display image to be displayed on the head-mounted image display device in accordance with the first and second operation signals and the second operation signal.

[0145]

[15] The image display system according to

[14] , wherein the visual display image is an image that displays the status of operation by the toes and / or the status of operation by the heel of the foot.

[0146]

[16] The image display system according to

[14] or

[15] , wherein the visual display image is an image that displays the situation after operation by the toes and / or after operation by the heel of the foot.

[0147]

[17] The image display system according to any one of

[14] to

[16] , wherein the foot-mounted terminal and the head-mounted image display device are wirelessly connected via the image display control device.

[0148]

[18] The image display system according to any one of

[14] to

[17] , wherein the foot-mounted terminal is positioned between the sole of the shoe and the user's foot while the user is wearing the shoe.

[0149]

[19] The image display system according to any one of

[14] to

[17] , wherein the foot-mounted terminal is placed on the sole of the user's foot when the user is not wearing shoes.

[0150]

[20] The image display system according to any one of

[14] to

[19] , wherein the foot-mounted terminal is a smartphone or a tablet.

[0151]

[21] The image display system according to

[20] , wherein the smartphone or tablet has durability such that it does not break even when stepped on by the user's foot.

[0152]

[22] The image display system according to

[20] or

[21] , wherein the external shape of the smartphone or tablet in a plan view as seen from the toe keyboard portion side and the heel keyboard portion side of the foot is substantially the same as the external shape of the shoe in a plan view as seen from the side worn by the user.

[0153]

[23] The image display system according to any one of

[14] to

[22] , wherein the head-mounted image display device is a spectacle-type display device.

[0154]

[24] The image display system according to any one of

[14] to

[22] , wherein the head-mounted image display device is a head-mounted display.

[0155]

[25] The image display system according to any one of

[14] to

[22] , wherein the head-mounted image display device is a contact lens type display device.

[0156]

[26] An image display system comprising a terminal, a head-mounted image display device worn on the user's head and displaying a viewable display image for the user's view, and an image display control device, wherein the terminal includes a first keyboard section and a second keyboard section, the first keyboard section outputs a third-1 operation signal in accordance with an operation on the first keyboard section, the second keyboard section outputs a fourth-1 operation signal in accordance with an operation on the second keyboard section, and the image display control device controls the viewable display image to be displayed on the head-mounted image display device in accordance with the third-1 operation signal and the fourth-1 operation signal.

[0157]

[27] The image display system according to

[26] , wherein the terminal includes an image display unit that displays a confirmation display image that can be viewed by the user, and the image control device controls the confirmation display image to be displayed on the image display unit in accordance with the 3-1 operation signal and the 4-1 operation signal.

[0158]

[28] The image display system according to

[26] or

[27] , wherein the visual display image is an image that displays the status of operation on the first keyboard section and / or the status of operation on the second keyboard section.

[0159]

[29] The image display system according to any one of

[26] to

[28] , wherein the visual display image is an image that displays the status after operation on the first keyboard section and / or the status after operation on the second keyboard section.

[0160]

[30] The image display system according to any one of

[26] to

[29] , wherein the terminal and the head-mounted image display device are wirelessly connected via the image display control device.

[0161]

[31] The image display system according to any one of

[26] to

[30] , wherein the terminal is a smartphone or a tablet.

[0162]

[32] The image display system according to any one of

[26] to

[31] , wherein the head-mounted image display device is a spectacle-type display device.

[0163]

[33] The image display system according to any one of

[26] to

[31] , wherein the head-mounted image display device is a head-mounted display.

[0164]

[34] The image display system according to any one of

[26] to

[31] , wherein the head-mounted image display device is a contact lens type display device.

[0165]

[35] An image display system comprising a terminal, a head-mounted image display device worn on the user's head and displaying a viewable display image for the user's view, and an image display control device, wherein the terminal includes an icon display unit and a third keyboard unit, the icon display unit outputs a third-second operation signal according to an operation on the icon display unit, the keyboard unit outputs a fourth-second operation signal according to an operation on the third keyboard unit, and the image display control device controls the viewable display image to be displayed on the head-mounted image display device in accordance with the third-second operation signal and the fourth-second operation signal.

[0166]

[36] The image display system according to

[35] , wherein the visual display image is an image that displays the status of operation on the icon display unit and / or the status of operation on the third keyboard unit.

[0167]

[37] The image display system according to

[35] or

[36] , wherein the visual display image is an image that displays the status after an operation on the icon display unit and / or the status after an operation on the third keyboard unit.

[0168]

[38] The image display system according to any one of

[35] to

[37] , wherein the terminal and the head-mounted image display device are wirelessly connected via the image display control device.

[0169]

[39] The image display system according to any one of

[35] to

[38] , wherein the terminal is a smartphone or a tablet.

[0170]

[40] The image display system according to any one of

[35] to

[39] , wherein the head-mounted image display device is a spectacle-type display device.

[0171]

[41] The image display system according to any one of

[35] to

[39] , wherein the head-mounted image display device is a head-mounted display.

[0172]

[42] The image display system according to any one of

[35] to

[39] , wherein the head-mounted image display device is a contact lens type display device.

[0173] 1 (1-1, 1-2, 1-3)... Foot-mounted terminal, 1-1A... Area for toe keyboard section, 1-1B... Area for heel keyboard section, 1-1C... Sloping area of ​​foot-mounted terminal, 1-1D... Flat (planar) area of ​​foot-mounted terminal, 2... Head-mounted image display device, 3... Image display control device, 11-1, 11-2... Toe keyboard section, 12-1, 12-2, 12-3... Heel keyboard section, 12-1-1, 12-2-1, 12-3-1... Left key of heel keyboard section, 12-1-2, 12-2-2, 12-3-2... Right key of heel keyboard section, 13-2... Foot-mounted image display section, 13-3... Toe icon display section, 50... Terminal, 100, 101, 102, 103, 104... Image display system, 210... Right holding part, 220... Right display unit, 230... Left holding part, 240... Left display unit, 260... Right light guide plate, 270... Front frame, 280... Left light guide plate, 500... User's foot, 501... Shoe, 501-1... Sole of shoe, 1000... User, 2610... Right half mirror, 2810... Left half mirror, B1... Second button part, B2... First button part, G1, W1... First control operation signal (1st-1st control operation signal, 1st-2nd control operation signal), G2, W2... Second control operation signal, G3, W3... Third control operation signal (3rd-1st control operation signal, 3rd-2nd control operation signal), G4, W4... Fourth control operation signal (4-1 control operation signal, 4-2 control operation signal), S1... First operation signal (1-1 operation signal, 1-2 operation signal), S2... Second operation signal, S3... Third operation signal (3-1 operation signal, 3-2 operation signal), S4... Fourth operation signal (4-1 operation signal, 4-2 operation signal).

Claims

1. An image display system comprising: a foot-mounted terminal worn on a user's foot; a head-mounted image display device worn on the user's head and displaying a viewable display image for the user's view; and an image display control device, wherein the foot-mounted terminal includes a toe keyboard section operable by the toes of the foot and a heel keyboard section operable by the heel of the foot, the toe keyboard section outputs a first-first operation signal according to the operation by the toes, the heel keyboard section outputs a second operation signal according to the operation by the heel, and the image display control device controls the viewable display image to be displayed on the head-mounted image display device in accordance with the first-first operation signal and the second operation signal.

2. The image display system according to claim 1, wherein the foot-mounted terminal includes a foot-mounted image display unit that displays a confirmation display image that can be viewed by the user, and the image control device controls the confirmation display image to be displayed on the foot-mounted image display unit in accordance with the first-1 operation signal and the second operation signal.

3. The image display system according to claim 1 or 2, wherein the visual display image is an image that displays the status of operation by the toes and / or the status of operation by the heel of the foot.

4. The image display system according to claim 1 or 2, wherein the visual display image is an image showing the situation after operation by the toes and / or after operation by the heel of the foot.

5. The image display system according to claim 1 or 2, wherein the foot-mounted terminal and the head-mounted image display device are wirelessly connected via the image display control device.

6. The image display system according to claim 1 or 2, wherein the foot-mounted terminal is positioned between the sole of the shoe and the user's foot while the user is wearing the shoe.

7. The image display system according to claim 1 or 2, wherein the foot-mounted terminal is placed on the sole of the user's foot when the user is not wearing shoes.

8. The image display system according to claim 1 or 2, wherein the foot-mounted terminal is a smartphone or a tablet.

9. The image display system according to claim 8, wherein the smartphone or tablet has durability such that it does not break even when stepped on by the user's foot.

10. The image display system according to claim 8, wherein the external shape of the smartphone or tablet in a plan view as seen from the toe keyboard portion side and the heel keyboard portion side of the foot is substantially the same as the external shape of the shoe in a plan view as seen from the side worn by the user.

11. The image display system according to claim 1 or 2, wherein the head-mounted image display device is a spectacle-type display device.

12. The image display system according to claim 1 or 2, wherein the head-mounted image display device is a head-mounted display.

13. The image display system according to claim 1 or 2, wherein the head-mounted image display device is a contact lens type display device.

14. The image display system according to claim 1 or 2, wherein, in the foot-mounted terminal, the position of the toe keyboard portion is downward relative to the position of the heel keyboard portion in a direction substantially parallel to the height direction from the user's head (upper part) to the user's feet (lower part), and the toe keyboard portion and the toes are separated.

15. The image display system according to claim 14, wherein the distance required to flick the user's big toe from a first direction which is substantially perpendicular to the vertical direction from the upper part of the user's foot to the lower part of the user's heel, in a plan view from the user's head, to a second direction which is the opposite direction to the first direction, is smaller than the distance required to flick from any other first direction to any other second direction.

16. The image display system according to claim 15, wherein, in the foot-mounted terminal, the area of ​​the first button portion constituting the toe keyboard portion, which is tapped by a predetermined toe of the user's foot when the toe of the user is bent, is larger in a plan view from the user's head than the area of ​​the second button portion constituting the toe keyboard portion, which is tapped by a predetermined foot when the toe of the user is not bent, is larger in a plan view from the user's head.

17. An image display system comprising: a foot-mounted terminal worn on a user's foot; a head-mounted image display device worn on the user's head and displaying a visual display image for the user's view; and an image display control device, wherein the foot-mounted terminal includes a toe icon display unit operable by the toes of the foot and a heel keyboard unit operable by the heel of the foot, the toe icon display outputs first and second operation signals according to the operation by the toes, the heel keyboard unit outputs a second operation signal according to the operation by the heel, and the image display control device controls the visual display image to be displayed on the head-mounted image display device in accordance with the first and second operation signals and the second operation signal.

18. The image display system according to claim 17, wherein the visual display image is an image that displays the status of operation by the toes and / or the status of operation by the heel of the foot.

19. The image display system according to claim 17 or 18, wherein the visual display image is an image showing the situation after operation by the toes and / or after operation by the heel of the foot.

20. The image display system according to claim 17 or 18, wherein the foot-mounted terminal and the head-mounted image display device are wirelessly connected via the image display control device.

21. The image display system according to claim 17 or 18, wherein the foot-mounted terminal is positioned between the sole of the shoe and the user's foot while the user is wearing the shoe.

22. The image display system according to claim 17 or 18, wherein the foot-mounted terminal is placed on the sole of the user's foot when the user is not wearing shoes.

23. The image display system according to claim 17 or 18, wherein the foot-mounted terminal is a smartphone or a tablet.

24. The image display system according to claim 23, wherein the smartphone or tablet has durability such that it does not break even when stepped on by the user's foot.

25. The image display system according to claim 23, wherein the external shape of the smartphone or tablet in a plan view as seen from the side of the toe icon display section and the side of the heel keyboard section is substantially the same as the external shape of the shoe in a plan view as seen from the side worn by the user.

26. The image display system according to claim 17 or 18, wherein the head-mounted image display device is a spectacle-type display device.

27. The image display system according to claim 17 or 18, wherein the head-mounted image display device is a head-mounted display.

28. The image display system according to claim 17 or 18, wherein the head-mounted image display device is a contact lens type display device.

29. The image display system according to claim 17 or 18, wherein, in the foot-mounted terminal, the position of the toe icon display unit is downward relative to the position of the heel keyboard unit in a direction substantially parallel to the height direction from the user's head (upper part) to the user's feet (lower part), and the toe icon display unit and the toes are separated.

30. The image display system according to claim 14, wherein the distance required to flick the user's big toe from a first direction which is substantially perpendicular to the vertical direction from the upper part of the user's foot to the lower part of the user's heel, in a plan view from the user's head, to a second direction which is the opposite direction to the first direction, is smaller than the distance required to flick from any other first direction to any other second direction.

31. The image display system according to claim 15, wherein, in the foot-mounted terminal, the area of ​​the first button portion constituting the toe icon display portion, which is tapped with the bent toe when a predetermined toe of the user's foot is bent, is larger in a plan view from the user's head than the area of ​​the second button portion constituting the toe icon display portion, which is tapped with the unbent toe when the predetermined toe of the user's foot is not bent, is larger in a plan view from the user's head.

32. An image display system comprising a terminal, a head-mounted image display device worn on the user's head and displaying a viewable display image for the user's view, and an image display control device, wherein the terminal includes a first keyboard section and a second keyboard section, the first keyboard section outputs a third-1 operation signal in accordance with an operation on the first keyboard section, the second keyboard section outputs a fourth-1 operation signal in accordance with an operation on the second keyboard section, and the image display control device controls the viewable display image to be displayed on the head-mounted image display device in accordance with the third-1 operation signal and the fourth-1 operation signal.

33. The image display system according to claim 32, wherein the terminal includes an image display unit that displays a confirmation display image that can be viewed by the user, and the image control device controls the confirmation display image to be displayed on the image display unit in accordance with the 3-1 operation signal and the 4-1 operation signal.

34. The image display system according to claim 32 or 33, wherein the visual display image is an image that displays the status of operation on the first keyboard section and / or the status of operation on the second keyboard section.

35. The image display system according to claim 32 or 33, wherein the visual display image is an image that displays the status after operation on the first keyboard section and / or the status after operation on the second keyboard section.

36. The image display system according to claim 32 or 33, wherein the terminal and the head-mounted image display device are wirelessly connected via the image display control device.

37. The image display system according to claim 32 or 33, wherein the terminal is a smartphone or a tablet.

38. The image display system according to claim 32 or 33, wherein the head-mounted image display device is a spectacle-type display device.

39. The image display system according to claim 32 or 33, wherein the head-mounted image display device is a head-mounted display.

40. The image display system according to claim 32 or 33, wherein the head-mounted image display device is a contact lens type display device.

41. An image display system comprising a terminal, a head-mounted image display device worn on the user's head and displaying a viewable display image for the user's view, and an image display control device, wherein the terminal includes an icon display unit and a third keyboard unit, the icon display unit outputs a third-second operation signal according to an operation on the icon display unit, the keyboard unit outputs a fourth-second operation signal according to an operation on the third keyboard unit, and the image display control device controls the viewable display image to be displayed on the head-mounted image display device in accordance with the third-second operation signal and the fourth-second operation signal.

42. The image display system according to claim 41, wherein the visual display image is an image that displays the status of operation on the icon display unit and / or the status of operation on the third keyboard unit.

43. The image display system according to claim 41 or 42, wherein the visual display image is an image that displays the status after an operation on the icon display unit and / or the status after an operation on the third keyboard unit.

44. The image display system according to claim 41 or 42, wherein the terminal and the head-mounted image display device are wirelessly connected via the image display control device.

45. The image display system according to claim 41 or 42, wherein the terminal is a smartphone or a tablet.

46. ​​The image display system according to claim 41 or 42, wherein the head-mounted image display device is a spectacle-type display device.

47. The image display system according to claim 41 or 42, wherein the head-mounted image display device is a head-mounted display.

48. The image display system according to claim 41 or 42, wherein the head-mounted image display device is a contact lens type display device.

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