TW201627719A - Display device - Google Patents

Abstract

Provided is a display device capable of easily and interactively changing a spatial image only by touching or tapping a part of the case of the device or attached components thereof. This display device provides an image of an image displayed on a display arranged on one side of a panel-shaped image-forming optical element (micro mirror array) as a two-dimensional spatial image (spatial image) via the micro mirror array at a spatial position with a distance from the other surface of the array. The display device comprises: a control means provided on the display; a detection means (vibration sensor or the like) for detecting a physical change and outputting the physical change as a change in an applied voltage or a change in electrical resistance; a signal transmission means for connecting the control means and the detection means; and an image switching means for monitoring the voltage value or the current value output from the detection means and sequentially switching the image displayed on the display in a prescribed order when a change in voltage or current exceeds a prescribed value.

Description

Display device Field of invention

The present invention relates to a display device in which a binary image projection of a still picture, an animation, or the like can be displayed as a spatial binary image suspended in a space, and the spatial secondary image can be simply manipulated by human motion.

Background of the invention

The applicant of the present invention has previously proposed a display device using a panel-shaped imaging optical element and a flat-panel display, and suspending a projection image of an image (animation or still picture, etc.) displayed on the display surface of the display. The state of the space on the upper side of the imaging optical element forms a spatial quadratic image and is imaged (see Patent Document 1).

As shown in FIG. 7, the display device is an imaging optical element (micromirror array M) having an imaging function, a flat panel display (display D) for displaying an image, and a casing C or an open casing housing the housing (omitted from the drawing) The display or the like is configured as a main body, and the micromirror array M is attached to an opening Ca provided on the upper surface (top plate portion) of the outer casing C.

Further, the display D is on the lower side (one surface side) of the above-described micromirror array M, and in the inside of the casing C, its display surface Da is inclined at a predetermined angle α with respect to the lower surface Mb of the micromirror array M (30). Above ° and less than 90°) The state is supported by the loading platform F. The image I (the emitted light: the two-dot chain line) displayed on the display surface Da of the display D is formed to penetrate the above-described micromirror array M and is slightly symmetrical with respect to the micromirror array M. In the space on the upper side of the mirror array M (above the upper surface Ma and on the other surface side with respect to the "one surface side"), a two-dimensional image (space image I') which is erected in an oblique manner is formed and imaged.

Prior technical literature Patent literature

Patent Document 1: Japanese Patent Laid-Open Publication No. 2014-115606

Summary of invention

However, the display device as described above images a spatial binary image (spatial image) on the upper side of the device casing in a jump-out manner, and thus is related to a conventional television using an LCD, a PDP, an organic EL (Organic Electroluminescence), or the like. Compared with a display device of a flat panel or a photo panel, it is a display device capable of providing a strong impression and impact. However, if only the images prepared in advance are displayed (played) in order, once you get used to it, you may become tired of getting tired. In addition, in consideration of commercial use such as advertisement display (digital kanban) or presentation at a storefront or a show, if the display of the image can be displayed, the image can be interactively changed after the touch device. In addition to the unexpected and entertaining nature, there is a possibility that the display device of the above-described form can be applied to the field of advertisement display, merchandise display, and sales of the storefront.

The present invention has been made in view of such circumstances, and an object of the invention is to provide a display device capable of switching a spatial image in a simple and interactive manner by simply touching a part of a casing of a device or an accessory thereof.

In order to achieve the above object, the display device of the present invention has a configuration in which a panel-shaped imaging optical element, a display disposed on one surface side of the imaging optical element, and a display image provided on the display are controlled. a mechanism, detecting a physical change and outputting the detection mechanism as a change in applied voltage or a change in resistance, a signal transmission mechanism connecting the control mechanism and the detection mechanism, and sequentially switching display on the display in a predetermined order The image switching mechanism of the upper image is formed such that the image displayed on the display passes through the imaging optical element, and a spatial binary image is formed at a spatial position separated from the other surface of the imaging optical element to be imaged. And the detecting means is disposed in the vicinity of a spatial position of the spatial binary image imaging, wherein the image switching mechanism monitors a voltage value or a current value output by the detecting means, and when the amount of change exceeds a predetermined value, The predetermined order is sequentially switched to be displayed on the above display .

In other words, the inventors of the present invention have continuously studied in order to solve the above problems, and as a result, it has been conceived that a so-called vibration or rotation can be arranged around and around a projected space image (space binary image). A simple and low-cost detection mechanism (contact type sensor or switch) that changes physical changes into voltages and the like, and monitors (monitoring) The change in the signal value or current value obtained from the detection mechanism. Further, it has been found that a signal (trigger) is switched by using a change in the magnitude of the voltage value or the like generated when the shock or vibration, or the shaking or the rotation is applied to the detecting portion of the detecting mechanism. The configuration of the image displayed on the display allows each person including the child and the elderly to change the image of the display device without having to explain the operation method of the device, etc., and the display device The interest is maintained and the invention is thus achieved. Further, it has been found that, by the above configuration, it is possible to improve the accidental effect and the advertising effect (impact force, eye-drawing strength, etc.) which are not present in a general display device, and therefore it is possible to fully apply the display device to the advertisement of the storefront. Display and merchandise display, sales, etc.

The display device of the present invention includes a control mechanism provided on the display, a detection mechanism for detecting a physical change of a detector (probe) applied to the detecting mechanism, and outputting the change in voltage or resistance change. The signal transmission mechanism and the image switching mechanism of the control mechanism and the detection mechanism, and the image switching mechanism is configured to monitor a voltage value or a current value (signal) change amount in the detection mechanism, and the amount of change exceeds a predetermined value At this time, the images displayed on the above display are sequentially switched in a predetermined order.

According to the above configuration, the display device of the present invention can perform simple action (operation) without any need to explain and teach the operation method of the device, etc., so that anyone can easily switch the image of the display device. . Moreover, the operation is to touch or tap the spatial binary image of the above space. In the vicinity of the position of the imaging space, such as a simple operation of a part of the casing of the apparatus or its accessory parts, it is possible to obtain the above-mentioned image with unexpected and entertaining properties that have not been changed in an interactive manner. In other words, since the display device allows the person viewing the display image to view the display image while changing it, it is possible to form a device having a high eye-catching intensity that can give a strong impact to the viewer. In addition, in terms of commercial use such as advertisement display and presentation, since the display image can be switched one by one at a desired time, it can be used as an image that is particularly impressive and full of presence.

Further, as the detecting means of the display device of the present invention, a piezoelectric type vibration sensor or an acceleration sensor using a piezoelectric element or a mechanical contact type rotary encoder can be suitably employed. Since the mounting of the piezoelectric vibration sensor or the acceleration sensor to the housing or the object of the display device is easy, it is possible to efficiently detect a blow or a finger originating from, for example, a user's hands or feet or Vibration or shaking caused by friction or the like. Further, the above-described mechanical contact type rotary encoder can also be rotated by a finger or the like to the left and right (or front and rear) by a finger or the like instead of the above-mentioned finger or the like for striking or rubbing an object, and simply The voltage value or current value for control (monitoring) causes a change. Moreover, these sensors and encoders have the advantage of being able to buy at a cheap price.

1, 11‧‧‧ shell body

2‧‧‧ top board

2a, 11a, Ca‧‧‧ openings

3. F‧‧‧ mounting table

3a‧‧‧Plate components

3b, 13‧‧‧ framework

4, 14‧‧‧Vibration sensor (detection mechanism)

10, 10'‧‧‧ Optical components

10a, 10’a‧‧‧ surface

10b, 10’b‧‧‧back

10g, 10’g‧‧‧ditch

12‧‧‧Installation components

C‧‧‧shell

D‧‧‧ display

Da‧‧‧ display surface

E‧‧‧ arrow

G‧‧‧ guitar

H‧‧‧ people's hands

I‧‧‧image

I’‧‧‧ Space Image

M‧‧‧micromirror array (imaging optics)

The upper surface of the Ma‧‧ micromirror array

The lower surface of the Mb‧‧ micromirror array

Sh‧‧‧ sound hole

St ‧ ‧ string

FIG. 1 is an explanatory view showing an example of use of the display device according to the first embodiment of the present invention.

Fig. 2 is a cross-sectional view showing the structure of a display device according to the first embodiment.

3 is an explanatory view for explaining an outline of a display device according to a second embodiment of the present invention.

4 is a cross-sectional view showing the structure of a display device according to a second embodiment.

FIG. 5 is an explanatory view showing a configuration of a display device according to a third embodiment of the present invention.

Fig. 6 is a view for explaining the configuration of a micromirror array used in the display device of the present invention, wherein (a) is an exploded perspective view and (b) is an assembled perspective view.

Fig. 7 is a cross-sectional view showing the configuration of a conventional display device.

Form for implementing the invention

Next, an embodiment of the present invention will be described in detail based on the drawings. However, the invention is not limited to the embodiments.

1 and 2 are views showing a state in which a display device of the present invention is applied to a game (electronic paper sumo) (first embodiment), and FIGS. 3 and 4 are views showing application of the display device of the present invention to a product ( FIG. 5 is a view showing a state in which a display device of the present invention is applied to a book (a picture book, a stereo picture book, a hand-drawn manga, etc.). 3 Figure 3). In addition, the symbol D in the figure represents a flat panel display (display), M represents an imaging optical element (micro mirror array), and C represents a housing (casing) in which these are accommodated. In the drawings, only the main part structure of the display device of the present invention will be described in a simplified manner. Therefore, a part of the casing such as the casing C and the casing, wiring, electrical components, and the like are omitted, and the display is "Image I" displayed on the display surface Da of D, and its projection image (imaging) The "spatial image I'" is drawn with an exaggerated thickness for easy understanding.

The basic configuration of the display device in the above embodiments is common. When the cross-sectional view of the display device according to the first embodiment shown in FIG. 2 is used, the display device of the present invention has the following main body: a panel a micromirror array imaging optical element (hereinafter referred to as "micro mirror array M" or simply "array M"), a display D such as an LCD, and the display D on one side of the array M (in the case of FIG. 2) The lower surface Mb side of the array M is supported by a mounting table 3 that is obliquely inclined, and a casing C that houses the array M, the display D, and the mounting table F. Further, the white arrow E indicates the direction of the line of sight of the person (viewer) who views the display device, and the "hand of the person" indicated by the symbol H is the same person (viewer).

It is to be noted that, in the display device described above, the viewer side (the right side in FIG. 2) of the inner surface of the top plate portion 2 of the outer casing C is provided with piezoelectric type vibration sensing for detecting vibration or the like applied thereto. The device 4 is formed to convert the vibration or the shake detected by the detecting portion of the vibration sensor 4 into a change in the applied voltage and output it. Further, the output signal of the vibration sensor 4 is transmitted through a wired connection using a cable (signal line: omitting illustration) or wireless communication using Bluetooth (registered trademark) [collectively referred to as "signal" The communication mechanism is transmitted to the image switching mechanism for switching the image I displayed on the display D (in the case of this example, built in the display D).

Further, a control mechanism for controlling the image I displayed on the display D is provided on the display device (controller: not shown in the display D). Then, the image switching mechanism passes through the above The vibration sensor 4 continuously monitors the vibration and shaking of the outer casing C (the top plate portion 2). When the amount of change in the signal (voltage value, etc.) obtained from the vibration sensor 4 exceeds a specified value, the image switching mechanism will An instruction is issued to the above control means to sequentially switch the image I displayed on the display D in a predetermined order.

Specifically, for example, as shown in FIG. 1, when the upper surface of the outer casing C (the upper surface of the top plate portion 2) is gently tapped by the human hand H, the display device of the present embodiment can respond to the vibration generated by the above-described behavior such as tapping. The number of times and intensity (amplitude) are switched, and the spatial image I' is switched in order (in the case of the first embodiment, the animal is moved by the paper sumo). This is a major feature of the display device of the present invention.

More specifically, the display device of the embodiment will be described. As shown in FIG. 2, the casing C accommodating the display device is a case body 1 having a bottomed box shape and a cover body covering the upper surface of the case body 1. (top plate portion 2). The center of the top plate portion 2 is provided with a square opening 2a, and the micromirror array M is fitted inside (inside) the opening 2a so as to penetrate the light inside the casing C.

Further, inside the casing C, a mounting table 3 for fixing (mounting) the display D at a predetermined position is disposed. The mounting table 3 for the display D is constituted by a plate-like member 3a on which the display D is placed, a frame 3b for supporting the plate-like member 3a at a predetermined angle, and the like, and is placed at the bottom of the casing C. On the predetermined location. The plate-like member 3a is supported and fixed to the frame 3b or the like in a state of being inclined by a predetermined angle α with respect to the lower surface Mb of the micromirror array M and the bottom (the inner side surface of the casing) of the outer casing C, and is The upper side becomes the mounting surface of the display D.

Further, by placing a device including an LCD screen such as a smart phone on the mounting surface of the mounting table 3, the display surface Da of the display D provided in the device is formed to be opposed to the micromirror array M. The state in which the lower surface Mb is inclined by α° is maintained. Furthermore, the inclination angle α of the above-described mounting table 3 in the outer casing C with respect to the lower surface Mb of the micromirror array M is adjusted so that the imaging generated by the array M described above is most appropriate, and is usually set at 30. It is above and below 90 degrees, preferably in the range of 40 degrees or more and 80 degrees or less.

Preferably, as an example of the display D placed on the mounting table 3 and used for display of the image I, in addition to a liquid crystal display panel (LCD) having a backlight, a plasma display panel or an organic EL display can be used. For a panel or the like, a display panel that satisfactorily reproduces "white" covering all visible light wavelengths without deviation as much as possible, and "black" when not displayed.

Further, the display D may be a display unit such as a mobile phone or a mobile information terminal, and specifically, the display D is a smart phone, a tablet, a tablet PC, a digital photo frame, a portable game machine, or a portable electronic book. Among the readers, PDAs, and electronic dictionaries, in a type in which the display surface Da is often exposed (uncovered), the size of the display surface Da corresponding to the size (planar shape) of the above-described micromirror array M can be used. Display.

Then, as previously described, the display D used in the display device of the present invention is provided with a control mechanism (controller: omitted) for controlling the display (playback), and monitorable (monitored) for detecting The amount of change in voltage (or current) in the detecting mechanism (vibration sensor 4, etc.) of the vibration of the outer casing C, so that when the amount of change has exceeded a predetermined value, the start (trigger) is sequentially switched to be displayed. The "image switching mechanism" of the image I on the display D described above. Furthermore, In the case of the display device of the present embodiment, the image switching mechanism is built in the display D as part of the program for controlling the playback of the image. However, the image switching mechanism may be included as part of the detection mechanism. Built in the side of the vibration sensor 4.

In addition, it is preferable that the image switching mechanism is provided with a continuous signal (such as a wobbling signal) that can be generated when a vibration caused by a single operation of a person (viewer) (such as tapping the outer casing C) is repeated a plurality of times. An erroneous operation (vibration) preventing circuit or program that limits the signal to one time at a predetermined time interval (between 0.5 and 2 seconds, etc.) to invalidate other signals.

On the other hand, as the imaging optical element (micromirror array M) disposed in the opening 2a of the casing C and used for projection (imaging) of the image I displayed on the display D, various lenses including a Fresnel lens or the like can be used. A refractive imaging element such as a micromirror or a corner reflector of a telephoto optical system. In the embodiment of the present invention, the micromirror array M imaged at a position symmetrical with respect to the surface of the other side of the array M is particularly shown in FIGS. 6(a) and 6(b) which will be described later. (An angular reflector array composed of two optical elements) is suitable for use. The micromirror array M is arranged to be formed substantially horizontally with respect to the viewpoint of the viewer.

In addition, as the detecting means for detecting the vibration, the shaking, or the like, which is disposed on the lower surface side (inner side) of the top plate portion 2 of the casing C, the above-described piezoelectric vibration sensor 4, or The same type of piezoelectric type acceleration sensor and the like. Further, in other forms, as long as it is a sensor that can output a physical change as a change in applied voltage, for example, an electric vibration sensor (acceleration sensor) can also be used. A strain sensor (acceleration sensor) of a strain (deformation) type, or a speed detector of an electric type. However, if the price of the sensor and the size, sensitivity, cost performance, etc. of the sensor are taken into consideration, it is preferable to use the above-described piezoelectric type vibration sensor 4 or acceleration sensor. Furthermore, these detection mechanisms can also be combined or set in multiples.

When the display device of the first embodiment configured as described above is used in a game such as a virtual paper sumo as shown in FIG. 1, the character (animal, etc.) that is the initial screen is first displayed on the display D. Then, the space image I' is projected and displayed on the upper side of the casing C (or the micromirror array M) (standby state).

Then, in this state, if the upper surface (top plate portion 2) or the side surface of the outer casing C is gently tapped by the hand H or a finger or the like, the vibration sensor 4 connected to the control mechanism of the display D can be detected by the vibration sensor 4 The formed vibration, shaking, or the like, and sequentially switches the image displayed on the display D in proportion to the intensity (amplitude) and the number of times of the detected vibration or the like (that is, as the spatial image I of the projected image) '). Thereby, it is possible to easily change the image of the display device by anyone including children and the elderly without having to explain the operation method or the like. Further, by the simple action such as the above-described tapping, the display device can be kept interested, and the accidental effects and the advertising effects (impact force, eye-drawing strength, etc.) which are not provided by other display devices can be obtained.

Further, the display device having the configuration of the first embodiment described above can be applied to a book (a picture book, a stereo picture book, a hand-drawn manga, etc.), or a musical instrument or a toy, which will be described later, in addition to the above-described game or the like. Facilities, construction Guides in buildings, etc., as well as fitness and training supplies.

Next, a second embodiment of the present invention will be described.

3 is a view showing an outline of a display device according to a second embodiment of the present invention, and FIG. 4 is a cross-sectional view showing a structure of a main part of the display device. Further, the symbol Sh in the figure indicates a sound hole (opening) of the guitar, and the symbol St indicates a string. It is to be noted that the same reference numerals are given to the same components as those in the first embodiment, and the detailed description thereof will be omitted.

In the second embodiment, the display device of the present invention is applied to a display or display of a musical instrument such as a guitar G, and the display device of the present invention is provided in accordance with a guitar G or the like that is normally displayed and displayed in an upright state. As shown in FIG. 4, it is arranged in the form of the inside of the guitar G or the like in a vertical shape. Therefore, the space image I' is imaged on the other side of the imaging optical element (micromirror array M) so as to jump out to the front side (viewer side) of the guitar G or the like (in the first embodiment, the array M is Upper surface Ma side).

In the present embodiment, the basic configuration of the display device is also common to the other embodiments, and the panel-shaped imaging optical element (micromirror array M), the display D such as an LCD, and the display D are on one side of the array M. (the left side of the array M in Fig. 4) is supported by a frame 13 which is inclined obliquely, and a casing C which accommodates the array M, the display D and the frame 13, and the like.

Further, an opening 11a corresponding to the sound hole Sh of the guitar G is provided on the side surface of the box-shaped casing body 11 constituting the above-described outer casing C, and the micromirror array M is fixed to the opening 11a using the mounting member 12. Inside (inside). Then, the display surface Da of the display D is inclined by α° with respect to the left side surface (inner side surface) of the micro mirror array M by the above-described frame 13 maintain. Further, the outer casing C may be omitted, and each member may be directly attached to the inside of the guitar G.

It is to be noted in this embodiment that, as shown in FIG. 3, in the vicinity (inside) of the chord St of the guitar G, it is mounted to detect vibration or the like which occurs due to plucking the string St or tapping the body of the guitar G, and This vibration is converted into a detecting mechanism that outputs a change in voltage (in FIG. 3, the probe portion of the piezoelectric vibration sensor 14). Further, the output signal formed for the vibration sensor 14 can be transmitted to the wired communication using a cable (signal line: illustration) or wireless communication using Bluetooth (registered trademark) or the like. The image switching mechanism (built in the display D) of the image I displayed on the display D described above is switched.

Further, in the musical instrument such as the guitar G, a piezoelectric pickup (usually a wired connection) used for connection to a loudspeaker or the like at a concert or the like is disposed at the same position as the vibration sensor 14 described above. In the case of the piezoelectric pickup, the piezoelectric pickup can also be used as a probe of the vibration sensor 14.

Further, as described above, in the display D used in the present embodiment, a control mechanism for controlling the display (playback) is provided (controller: illustration), and the image switching mechanism transmits The detecting mechanism (vibration sensor 14, piezoelectric pickup, etc.) continuously monitors the vibration (such as vibrations generated by the plucking string St or the body of the guitar G, and the signal (voltage) obtained by the vibration sensor 14 or the like When the amount of change in the value or the like has exceeded a predetermined value, the image switching mechanism issues an instruction to the control unit to switch the image I displayed on the display D (or start playback of the image).

Furthermore, the image switching mechanism described above is used as a control image. A part of the program to be played is built in the display D, but may be built in the vibration sensor 14 as a part of the detection mechanism as in the first embodiment. Further, it is preferable that the image switching mechanism includes an erroneous operation (vibration) preventing circuit or a program that can limit a continuous signal (chattering signal) to a predetermined time interval (between 0.5 and 2 seconds).

When the display device of the second embodiment configured as described above is used in a musical instrument (guitar G) as shown in FIG. 3, first, an initial screen composed of a map of a note (still image or animation) is displayed on the display D. The space image I' is projected and displayed on the front side of the casing C (guitar G). Furthermore, when the target is a "surprise" effect that causes the note to jump out, there may be a case where no picture is displayed on the display D.

Then, in this state (standby state), if the hand or finger is equal to the chord St or the front or side of the guitar G body, or pluck or tap, the vibration sensor connected to the control mechanism of the display D can be used. 14 detecting vibration, shaking, or the like formed by the same, and correspondingly displaying the intensity (amplitude) and the number of times of the detected vibration or the like on the display D or starting the playback of the image (as the spatial image I of the projected image) The projections, or the images displayed on the display D are sequentially switched. Thereby, any person including a child, an elderly person, or the like can be easily changed to the image of the display device without explaining the operation method or the like. In addition, by the above-mentioned simple actions such as plucking and tapping, it is possible not only to make people interested in the display device, but also to obtain unexpected effects and advertising effects (impact force and eye-drawing strength, etc.) which are not provided by other display devices.

Furthermore, the display device according to the second embodiment described above may be provided In addition to the guitar G (classical guitar, acoustic guitar, etc.), it can of course be placed on a ukulele with the same sound hole, or a violin, double bass, etc. The micromirror array M is configured to be viewable (exposure) from the body, or to other stringed instruments, or woodwind instruments, brass instruments, percussion instruments, keyboard instruments, and the like. Therefore, even in these musical instruments, the same effects as those of the second embodiment described above can be achieved.

Next, a third embodiment of the present invention will be described.

Fig. 5 is a view for explaining the configuration and operation of a display device according to a third embodiment of the present invention. Here, the symbol 5 in the figure is a mechanical contact type rotary encoder for operating the spatial image I', which is a feature of this embodiment. The same components as those in the first embodiment are denoted by the same reference numerals, and the detailed description thereof will be omitted.

The display device according to the third embodiment is an aspect in which the display device of the present invention is applied to an electronic book such as a picture book, a stereo picture book, and a hand-drawn comic book, and is characterized in that a mechanical contact type is disposed. The rotary encoder 5 is replaced with the vibration sensors 4 and 14 of the first and second embodiments described above, and serves as a detection mechanism (sensor) for converting a phase change of rotation into a change in applied voltage. Further, the above-described rotary encoder 5 is connected to the image switching mechanism (display D by a wired connection using a cable (signal line: illustration) or the like, or wireless communication using Bluetooth (registered trademark) or the like. Control agency).

For the above-described mechanical contact type rotary encoder 5, the mechanical contact type (mechanical type) rotary encoder 5 will have A (signal 1), Three terminals, such as B (signal 2) and GND (ground), are provided with a plurality of contacts arranged in a circumferential direction between the terminals, and a rotator that slides in contact with the contacts in the circumferential direction ( Connect to the turntable or knob). Further, the phase difference caused by rotating the turntable toward the left and right (or front and rear) with a finger or the like is used as a change in the applied voltage and the resistance (a waveform in the form of a pulse), and is output to the A and B terminals at different time points. Further, the order of appearance of these waveforms can be recognized by the control mechanism of the display D to identify the rotational direction of the rotary encoder 5. Further, the number of rotations (rotation speed) of the above-described rotary encoder 5 can also be measured by calculating the number of times of development of these waveforms.

When the display device of the third embodiment of the above-described rotary encoder 5 is used for, for example, an e-book as shown in FIG. 5, first, the page that becomes the initial screen is displayed on the display D, and The spatial image I' is projected and displayed on the upper side of the casing C (or the micromirror array M).

Then, in this state, when the turntable of the rotary encoder 5 positioned on the side of the casing C is rotated forward and backward (in the direction of the arrow F or the direction of the arrow R), it can be proportional to the angle of rotation and the speed of rotation, and the like. The image displayed on the display D (the spatial image I' as the projected image) is quickly switched, for example, in the form of the letters "A" -> "B" -> "C" in Fig. 5 .

According to the above-described configuration, in the display device of the third embodiment, as in the first and second embodiments, any person including children and the elderly can be made without explaining the operation method or the like. Both can easily switch the image of the display device. Further, since the display of the display device can be switched by the simple operation (rotation of the turntable) as described above, it is possible to achieve an advertising effect higher than that of the conventional display device, and it is possible to apply In the advertising display of the storefront, merchandise display, sales, etc.

In addition, when the above-described rotary encoder 5 is made of a wireless connection using Bluetooth (registered trademark) or the like, in a case where the arrangement position is not limited, even from a position far from the display device, This spatial image I' can be switched. In addition, an optical rotary encoder may be used instead of the mechanical contact rotary encoder 5, which uses an optical sensor to measure the direction of rotation and the number of rotations.

In addition, the display device according to the third embodiment of the above-described configuration can be applied not only to games such as the first aspect but also to electronic books such as comics, picture books, and manuals, toys, facilities, buildings, and the like. Guided by, home appliances, audio-visual equipment, anti-theft supplies, equipment, etc.

Moreover, the operation of the spatial image I' in the series of embodiments may be performed by using the hands of the hands such as "slap", "pluck" and "rotation" as described above. Step by the action of other parts of the body to give vibration and the like.

Next, the micromirror array M used in the display device of each of the above embodiments will be described in detail.

As shown in FIG. 6(a), the micromirror array M having an imaging function is a transparent substrate 10, 10' which is made of a material having a transmittance of visible light of 80% or more, such as acryl or glass. On the surface, by using a cutting process using a rotary cutter, two optical elements of a plurality of linear grooves 10g and 10'g which are parallel to each other are formed at predetermined intervals [units, each of which is shown in Fig. 6(a) The upper and lower substrates are stacked in the following manner, and the pattern is a "front surface" 10a in which linear grooves 10g and 10'g are formed in each optical element. The 10'a abuts each other such that the extending directions of the linear grooves 10g and 10'g of the respective optical elements intersect each other perpendicularly in plan view (see Fig. 6(b)).

These substrates 10, 10' are usually in the form of a hard plate having a fixed thickness (having a thickness of about 0.5 to 10.0 mm), and the above-mentioned linear grooves are formed by engraving on the upper surfaces (front faces 10a, 10'a). 10g, 10'g. The grooves 10g and 10'g are grooves formed by a rotary cutter (cutting) such as a cutting machine, and are formed at a predetermined interval (pitch) in a direction toward the processing target (front surface) of the substrates 10 and 10'. ) and formed in parallel with each other. Further, since the side faces (wall faces) constituting the grooves 10g and 10'g are formed by cutting using the above-described rotary cutter, they are formed as a light-reflective vertical surface (mirror surface).

Further, although the grooves 10g and 10'g are determined depending on the thickness of the insert (the total thickness between the end faces of the rotary cutter), the blade is usually used to a thickness of about 0.015 mm (15 μm) to 0.3 mm (300 μm). In the case, grooves 10g and 10'g having a groove width of about 20 to 350 μm and a groove depth of about 50 to 500 μm are formed, and the remaining regions (the ridge portions) of the grooves 10g and 10'g are not formed. It is a parallel rib having a width of about 50 to 300 μm and a height of about 50 to 500 μm (the same depth as the groove).

Further, the two substrates 10 and 10' in which the linear grooves 10g and 10'g are formed are horizontally rotated by 90° with respect to the other substrate 10' on the lower side. In a state (that is, a state in which the phase of the "ditch" in the lower substrate 10 and the upper substrate 10' in the direction in which the groove is extended by 90 degrees), the substrates 10 and 10' are stacked to form FIG. 6 (b). ) The micromirror array M shown.

Furthermore, when overlapping, as described above, due to the lower substrate 10 Since the phase in the groove direction of the upper substrate 10' is different by 90°, in the state of FIG. 6(b), when the micromirror array M is viewed from the substrate surface back surface direction (up and down direction), each of the upper substrate 10' Each of the grooves 10'g and the grooves 10g of the lower substrate 10 are formed in a lattice shape orthogonal to each other in plan view, and each of the upper substrates 10' is formed at the intersection of the grooves 10g and 10'g. An angle reflector formed by a vertical surface (second mirror surface) of the light reflection of the groove 10'g and a vertical surface (first mirror surface) of the light reflection of each groove 10g of the lower substrate 10 [on the upper and lower sides 2-sided angular reflectors spaced apart in the direction]. With this configuration, the micromirror array M can image the image I located on one side of the array M on the surface object side of the other surface side to form an upright space image I'.

In addition, the configuration of the micromirror array may be formed in a linear shape in addition to the state in which the front surfaces of the optical elements in which the linear grooves are formed are in contact with each other (the array M of the above example). The front surface 10a of the groove abuts on the back surface 10'b where the linear groove is not formed, and the substrate 10, 10' is vertically overlapped or the back surface (10b, which is not formed with a linear groove). 10'b) An imaging optical element having the same function can be obtained in a state in which the states abut each other.

In addition, the imaging optical element (micromirror array M) to be used may be cut by the above-described rotary cutter or the like on the upper surface 10a and the lower surface 10b of the upper substrate 10 (optical element), respectively. It is formed in a linear shape parallel to each other (the phase of the front surface 10a and the back surface 10b is 90 degrees out of phase).

As an imaging optical element used in the display device of the present embodiment Among the micromirror arrays of these aspects, no matter which one is used, there is no influence, but from the viewpoint of preventing dust or the like from adhering to the groove of the array M, as shown in Fig. 6(b) The micromirror array M is most suitable for use.

By using the micromirror array constructed as above as an imaging optical element, the display device of the present invention can project and display a spatial binary image (spatial image I') to the other side of the micromirror array with high brightness and vividness. On the side.

In the above embodiments, the specific embodiments of the present invention have been shown, but the above embodiments are merely illustrative and not intended to be construed as limiting. It is intended that various modifications of the invention are intended to be included within the scope of the invention.

Industrial availability

The display device of the present invention can not only display a binary image projection of a still picture and an animation or the like as a spatial binary image suspended in a space, but can easily operate the spatial secondary image by a human motion. Therefore, it is possible to make an advertisement display (such as an impact effect (impact force, eye-drawing intensity, and the like) which is not available in a normal display device, and the like, and it is suitable for use in a storefront advertisement, a product display, a sale, and the like.

1‧‧‧Shell body

2‧‧‧ top board

2a‧‧‧ openings

3‧‧‧ mounting table

3a‧‧‧Plate components

3b‧‧‧Frame

4‧‧‧Vibration sensor (detection mechanism)

C‧‧‧shell

D‧‧‧ display

Da‧‧‧ display surface

E‧‧‧ arrow

H‧‧‧ people's hands

I‧‧‧image

I’‧‧‧ Space Image

M‧‧‧micromirror array (imaging optics)

The upper surface of the Ma‧‧ micromirror array

The lower surface of the Mb‧‧ micromirror array

Claims (3)

A display device comprising a panel-shaped imaging optical element, a display disposed on one side of the imaging optical element, a control mechanism for providing a display image on the display, detecting a physical change and making it a change in applied voltage a detecting means for outputting a change in resistance, a signal transmitting means for connecting the control means and the detecting means, and a map switching means for sequentially switching the images displayed on the display in a predetermined order, the display means being characterized by: forming In order to transmit the image displayed on the display to the imaging optical element, a spatial quadratic image is formed and imaged at a spatial position separated from the other surface of the imaging optical element, and the detecting mechanism is disposed in the spatial binary element. In the vicinity of the spatial position of the image formation, the image switching mechanism monitors a voltage value or a current value outputted from the detecting means, and when the amount of change exceeds a predetermined value, sequentially switches the display to the display in a predetermined order. The image on. The display device of claim 1, wherein the detecting mechanism is a piezoelectric vibration sensor or an acceleration sensor. The display device of claim 1, wherein the detecting mechanism is a mechanical contact type rotary encoder.