Display device and method for adjusting display position of aerial image by display device

Abstract

To display an aerial image at an easy-to-see position in a display device.SOLUTION: A display device 10 comprises a display unit main body 20 that includes an optical device 25, and a support part 30. The optical device 25 is configured to image-form a display image displayed on a screen 40S of a terminal 40 outside the device, and display an aerial image I. The display unit main body 20 is configured to be slidable along grooves 32A and 32B of the support part 30.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a display device, and more particularly to a display device that displays an aerial image. [Background technology]

[0002] In a display device capable of displaying an aerial image, an image displayed on a display screen or the like is focused in the air (space) by an optical device such as a mirror, and an image or video can be displayed in the air. For example, in a rectangular parallelepiped display device, a mirror is placed on the top surface of the housing, and the light of an image displayed on a screen inside the housing is made to enter the mirror. The light of the image is focused on the housing by the mirror, allowing the user to visually recognize the aerial image (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3221631 Publication Summary of the Invention [Problem to be solved by the invention]

[0004] For example, in the case of a portable display device, the size of an optical device such as a mirror is limited, which limits the imaging distance and the size of the aerial image. This limits the visible range of the aerial image, which is affected by the viewing angle, and can easily lead to situations where the aerial image cannot be seen or is difficult to see depending on the user's viewing position.

[0005] Therefore, it is necessary to be able to display the aerial image at a position that is easy for the user to see. [Means for solving the problem]

[0006] The display device according to one embodiment of the present invention includes a display unit body provided with an optical device that forms an image in the air with light for display, and a support unit capable of supporting the display unit body. The display device can be applied to digital signage, automatic reception machines, etc., and is aimed at providing various DX (digital transformation) opportunities.

[0007] The display unit main body of the present invention is movable relative to the support unit in a specified direction. The specified direction corresponds to a direction in which the display position of the aerial image is tilted toward the front side and the rear side of the device. For example, the display unit main body can be configured to move relative to the support unit so that the movement of the aerial image is a rotational movement.

[0008] A guide mechanism may be provided on at least one of the display body and the support member. For example, the guide mechanism may be configured to slide the display body relative to the support member so as to tilt the display position of the aerial image toward the front side and the rear side of the device.

[0009] The display unit body may be configured to move relative to the support unit so that the display position of the aerial image along the vertical direction can be tilted more toward the rear side of the device than toward the front side of the device. Also, the display unit body may be supported so as to be movable relative to the support unit so that the aerial image rotates by an amount corresponding to an amount of rotational movement of the display unit body. For example, the display unit body may be configured to move relative to the support unit so that the aerial image is rotated around a position outside the imaging plane.

[0010] A method for adjusting an aerial image display position by a display device according to one aspect of the present invention includes providing a plate-shaped mirror that forms an image in the air using light from an image to be displayed, mounting a display main body having an arc-shaped convex surface as its bottom surface on a support that forms a concave surface according to the shape of the bottom surface and is capable of supporting the display main body so as to determine the display position of the aerial image, and sliding the display main body relative to the support using a guide mechanism that determines the direction of movement of the display main body according to the direction in which the display position of the aerial image is tilted forward and backward from the device. This adjusts the display position of the aerial image. Effect of the Invention

[0011] According to the present invention, an aerial image can be displayed on a display device at a position that is easily viewable by a user. [Brief description of the drawings]

[0012] [Figure 1] 1 is a perspective view of a display device according to an embodiment of the present invention; [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. 2 is a side view when the display main body 20 is slid. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, the display device according to the present embodiment will be described with reference to the drawings.

[0014] Fig. 1 shows a perspective view of the display device according to the present embodiment, Fig. 2 shows a side view of the display device, and Fig. 3 shows a bottom view of the display device.

[0015] The display device 10 is a display device capable of displaying an aerial image in a space outside the device, and can be applied to an automatic reception machine, digital signage, etc. When a user performs a predetermined operation (such as an aerial input operation), it is possible to display a character image of a person handling reception or a character image introducing a product as an aerial image.

[0016] Here, the display device 10 is configured to display an image on a terminal 40 such as a smartphone, and display the image as an aerial image. The display device 10 includes a display main body 20 equipped with an optical device 25 that forms an aerial image, and a support part 30 that supports the display main body 20. The support part 30 can be mounted on a table T or the like.

[0017] The display main body 20 has an optical device 25 arranged on an inclined surface 20A that forms the front surface of the main body, and includes a housing 20C having a bottom surface 20B formed on the opposite side. The bottom surface 20B here is semicircular (fish-shaped), and a terminal insertion port 20F is formed on the front side of the display main body 20. The terminal 40 can be removably attached to the display main body 20, and is held and positioned within the main body by a support member (not shown) that supports one end of the terminal 40.

[0018] The optical device 25 guides the light of the image displayed on the screen 40S of the terminal 40 to the outside of the display main body 20, and forms an image on the imaging plane FP. As a result, the image displayed on the terminal screen is spatially displayed as an aerial image I. For example, a user can display a desired image as an aerial image I by inserting the terminal 40 into the display main body 20 with a display image already displayed on the screen. The display image may be displayed on the screen by remotely operating the terminal 40.

[0019] A known plate-shaped mirror can be applied to the optical device 25. Here, optical elements such as a mirror having a two-sided corner reflector array structure and a two-orthogonal surface reflector can be arranged. The aspect ratio, size, etc. of the optical device 25 are determined according to the screen size of the terminal 40.

[0020] The support part 30 has a concave surface 30B formed of a curved surface corresponding to the arc-shaped bottom surface 20B of the display main body 20, and the display main body 20 is mounted on and supported by the concave surface 30B. When the display main body 20 is mounted on the support part 30 in the position (posture) shown in Figures 1 and 2, the aerial image I is displayed along the vertical direction.

[0021] A pair of grooves 32A, 32B are formed in the concave surface 30B of the support portion 30 near the width direction ends of the support portion 30 (see FIG. 3). The grooves 32A, 32B are parallel to each other and are formed to extend along the front-rear direction of the device.

[0022] Meanwhile, a pair of arc-shaped guide rails 22A, 22B are formed on the bottom surface 20B of the display main body 20. The guide rails 22A, 22B are formed in accordance with the formation positions of the pair of grooves 32A, 32B of the support part 30, and are sized to fit into the grooves 32A, 32B of the support part 30.

[0023] The guide rails 22A, 22B fit into a pair of grooves 32A, 32B, so that the display main body 20 is held and positioned by the support part 30. On the other hand, when a user applies force to the display main body 20, the display main body 20 can slide in the front-rear direction of the device relative to the support part 30. Here, the terminal insertion port side of the support part 30 is the front side of the device, and the opposite is the rear side of the device.

[0024] 4 is a side view of the display main body 20 when it is slid. When the user presses the housing 20C of the display main body 20 from the upper rear side, the display main body 20 slides toward the front side of the device (support part 30) relative to the support part 30. As a result, the position of the optical device 25 moves closer to the horizontal direction, and the display position of the aerial image I changes.

[0025] Specifically, the aerial image I moves from a display position along the vertical direction to a display position tilted toward the rear of the device. The greater the movement of the display main body 20, the more the display position of the aerial image I tilts toward the rear. Meanwhile, since the display main body 20 can slide not only toward the front of the device but also toward the rear with respect to the support part 30, the aerial image I can be tilted toward the rear of the device.

[0026] As described above, the bottom surface 20B of the display main body 20 is formed of a curved surface having an arc-shaped cross section. Therefore, when the display main body 20 slides relative to the support part 30, the display position of the aerial image I rotates in accordance with the rotational movement of the display main body 20, and the amount of rotational movement of the aerial image corresponds to the amount of rotational movement of the display main body 20. The center of rotational movement of the display main body 20 is determined according to the center of curvature of the bottom surface 20B, and is located off the imaging plane FP.

[0027] When the display main body 20 is rotated so as to move (tilt) the display position of the aerial image I forward, the aerial image is tilted so as to protrude further forward with respect to the display position of the aerial image I along the vertical direction (see the dashed line in FIG. 4). Conversely, when the display main body 20 is rotated so as to move the display position of the aerial image I backward, the aerial image is tilted so as to protrude further backward.

[0028] Generally, the visible range of the aerial image I depends on the viewing angle (approximately 40°), and even a slight deviation in the direction in which the user views the aerial image I makes it difficult to view the aerial image I. In particular, when the display device 10 is installed on a table T, the viewing angle of the display device 10 differs depending on the individual elongation differences of the users.

[0029] By applying force to the display main body 20, the user can slide the display main body 20 forward or backward to a position where the user can easily view the aerial image I. Then, when the user stops applying the force, the support part 30 can hold the display main body 20 at that position and support (position) it so as to determine the display position of the aerial image.

[0030] The movement direction of the display main body 20 is regulated by the above-mentioned guide mechanism, and the display position of the aerial image I is adjusted while maintaining the up-down relationship of the images based on the display position of the aerial image I along the vertical direction. By regulating the movement direction of the display main body 20 rather than allowing it to move freely, it becomes possible to appropriately and easily guide the aerial image I to a display position that is easy to view.

[0031] In particular, since the aerial image I is rotated toward the front or rear of the device around a position outside the imaging plane of the aerial image I, it is possible to finely adjust the display position of the aerial image I. Also, since a slide mechanism is employed in which the guide rails 22A, 22B slide in the grooves 32A, 32B, the display main body 20 can be positioned by its own weight at the position where the application of force is stopped.

[0032] 1 and 2, the display main body 20 is mounted on the support part 30 so that the optical device 25 is positioned at a relatively large tilt angle when the aerial image I is displayed along the vertical direction. Therefore, under the condition that the support part 30 can hold the display main body 20, the amount of movement of the display main body 20 toward the rear side of the device is greater than the amount of movement toward the front side of the device. In other words, the display position of the aerial image I along the vertical direction can be moved farther toward the rear side of the device than toward the front side of the device.

[0033] 1, when the display device 10 is installed on a table T, if the user views the display device 10 in a standing position, it becomes necessary to slide the display main body 20 significantly toward the rear side of the device (in the direction to stand it up), but even in such a situation, the aerial image I can be adjusted to a display position that is easy for the user to view. On the other hand, when the display device 10 is installed in a relatively high position, the aerial image I can be displayed at a position that is easy to view by sliding the display main body 20 toward the front side of the device (in the direction to lay it down).

[0034] The sliding mechanism is not limited to the above, and any guide mechanism that guides the aerial image I in a direction that tilts the image toward the front or rear of the device may be used. The movable range of the display unit main body 20 may be changed as appropriate, and the relative positional relationship between the display unit main body and the support unit and the slidable range may be determined according to the optical characteristics of the optical device 25 (the position where the image is formed).

[0035] The display device 10 of the present embodiment is configured to display a display image on the terminal 40, but may be configured to have a display in advance within the display unit main body 20. For example, it is possible to transmit display image data to the display using a communication network and display an aerial image. Also, a storage medium such as a USB memory may be attached to the display unit main body 20 to display the aerial image I. Furthermore, it is also possible to apply an optical system that displays a three-dimensional image as an aerial image instead of a two-dimensional image. [Explanation of symbols]

[0036] 10 Display device 20 Display body 22A, 22B guide rails 25 Optical Devices 30 Support part 32A, 32B groove 40 Terminals

Claims

1. A display unit body having an optical device for forming an image in the air with light of a display image; a support portion capable of supporting the display main body, A display device characterized in that the display main body is movable relative to the support part along a specified direction that tilts the display position of the aerial image toward the front and rear of the device.

2. 2. The display device according to claim 1, wherein the display body is supported by the support so that a display position along the vertical direction of the aerial image can be tilted significantly toward the rear of the device rather than toward the front of the device.

3. 3. The display device according to claim 1, wherein the display body is supported so as to be movable relative to the support part such that the aerial image rotates by an amount corresponding to an amount of rotational movement of the display body.

4. 4. The display device according to claim 1, wherein the display body is slidable along a direction defined by a guide mechanism provided on at least one of the display body and the support.

5. the support portion includes a support surface having a groove extending along the front-rear direction of the device, 5. The display device according to claim 4, wherein the display body has a bottom surface provided with a guide rail that fits into the groove.

6. The display unit body removably supports a terminal capable of displaying a display image within the body, 6. The display device according to claim 1, wherein the optical device includes a mirror that focuses light of a display image displayed on a screen of the terminal into an image in the air outside the terminal.

7. a display unit body provided with a plate-shaped mirror for forming an image in the air using light for display, the display unit body having an arc-shaped convex surface as a bottom surface; a support portion that forms a concave surface corresponding to the shape of the bottom surface and is capable of supporting the display body so as to determine a display position of the aerial image, a guide mechanism is provided on at least one of the display unit body and the support unit to guide a display position of the aerial image in a direction in which the display position is tilted toward a front side and a rear side of the device; The display device, wherein the display body is slidable in a direction defined by the guide mechanism.

8. 8. The display device according to claim 7, wherein the display body removably supports a terminal capable of displaying a display image within the body.

9. a plate-shaped mirror is provided to form an image in the air using light from an image to be displayed; a display unit body is formed with an arc-shaped convex surface as a bottom surface; a concave surface is formed according to the shape of the bottom surface; and the display unit body is mounted on a support member capable of supporting the display unit body so as to determine a display position of the aerial image; A method for adjusting the display position of an aerial image on a display device, characterized in that the display unit main body is slid relative to the support part using a guide mechanism that specifies the movement direction of the display unit main body according to the direction in which the display position of the aerial image is tilted forward and backward from the device, thereby adjusting the display position of the aerial image.

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