JP2013008087A - Operation input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation input device that is an operation input device which displays an operation target stereoscopically, and achieves an excellent feeling of operation and has superior operability.SOLUTION: An operation switch panel 1 which has operation switches 15 to be operated without contact provided on an operation surface 10 side includes: operation detection means of detecting non-contact operation by detecting a human body such as a finger tip in a detection area provided spatially on the operation surface 10 side; stereoscopic display means of displaying switch displays 200 stereoscopically indicating positions of the detection area of the operation switches 15; and plane display parts 155S which displays function displays 155 representing functions of the operation switches 15 in a plane. On the operation surface 10 side, the switch displays 200 by the stereoscopic display means and the function displays 155 by the plane display parts 155S are displayed corresponding to the operation switches 15.

Description

  The present invention relates to an operation input device that can be operated without contact.

  Conventionally, as an operation input device that inputs various operations for operating the target device, an input that realizes a three-dimensional display as an operation target of a virtual image that emerges and is viewed stereoscopically, and realizes a non-contact operation with respect to the operation target An apparatus is known (for example, refer to Patent Document 1). Such an operation input device capable of non-contact operation is suitable for application to a kitchen, a wash basin that requires an operation with a wet hand, a multifunctional toilet or the like where touch operation may be avoided.

  However, the conventional operation input device that stereoscopically displays the conventional operation target has the following problems. That is, if the operation target is displayed in three dimensions, the operation position of the non-contact operation can be intuitively presented to the user, while the appearance of the operation target that is a virtual image varies or the image appears blurred depending on the expected direction. There is a risk that the operational feeling may be impaired due to a bad visual effect.

JP-A-10-223102

  The present invention has been made in view of the above-described conventional problems, and is an operation input device that stereoscopically displays an operation target, in order to provide an operation input device with excellent operability that realizes a good operational feeling. It is invention of this.

The present invention is an operation input device provided with an operation switch that can be operated in a non-contact manner on the operation surface side,
Operation detecting means for detecting a non-contact operation by detecting a human body such as a fingertip in a detection region provided in the space on the operation surface side;
Stereoscopic display means for stereoscopically displaying a switch display indicating the position of the detection region of the operation detection means;
A plane display unit that planarly displays a function display representing the function of the operation switch,
On the operation surface side, the switch input by the stereoscopic display means and the function display by the flat display unit are in the operation input device displayed in correspondence with the operation switches.

  In the operation input device of the present invention, the switch display and the function display are displayed corresponding to the operation switches. The switch display is a three-dimensional display showing the position of the detection area of the corresponding operation switch. The function display is a planar display that displays the function of the corresponding operation switch, that is, a display that does not produce a stereoscopic effect.

  According to the three-dimensional switch display that emerges from the operation surface and is visually observed, the user can intuitively grasp the spatial position of the detection area. On the other hand, the function display indicating the function of the operation switch is displayed in a plane rather than a three-dimensional form. Unlike a virtual image displayed in three dimensions, this function display does not cause image fluctuation such as a change in appearance or a blur depending on the expected direction. Therefore, the operator can grasp the function of the corresponding operation switch quickly and accurately only by looking at the function display.

  As described above, in the operation input device of the present invention, the function of the operation switch can be clearly and quickly grasped by the function display displayed in a plane, and the switch display displayed in three dimensions is used as an operation target. By operating, a reliable non-contact operation is possible and a good operational feeling is realized.

As the display shape of the switch display in the present invention, various shapes such as a circular shape, a spherical shape, a polygonal shape such as a triangular shape and a quadrangular shape can be adopted. In addition, as the function display, a figure, a character, or the like representing the function of the operation switch can be adopted.
In the operation input device according to a preferred aspect of the present invention, a background image that is three-dimensionally displayed so as to be seen behind may be arranged around the function display. In this case, the function display displayed in a planar manner can be made to stand out by making it appear as if it relatively rises up from the surrounding that appears deep inside. That is, a relative three-dimensional display effect can be produced for the function display displayed in a plane.

In the operation input device according to a preferred aspect of the present invention, the stereoscopic display means includes a divided left image obtained by dividing the left image of the switch display to be observed by the left eye in a predetermined direction and the switch display to be observed by the right eye. For a 3D original image in which a right image is divided in a predetermined direction and a 3D original image alternately arranged in a parallax direction, the left eye's line-of-sight direction for viewing the divided left image and the right eye for viewing the divided right image Including a display sheet on which parallax sheets that divide the line-of-sight direction are laminated,
The flat display unit for displaying the function display is preferably arranged so as to avoid an area overlapping with the 3D original image in the parallax direction in the outer peripheral area of the 3D original image.

  The switch display displayed in a three-dimensional manner may cause a positional shift or a shake in the parallax direction according to the expected direction. As described above, if the planar display unit is arranged so as to avoid an area overlapping with the 3D original image in the parallax direction, the function display may be concealed by the switch display in which a positional deviation or the like has occurred. Can be avoided.

In the operation input device according to a preferred aspect of the present invention, the display sheet is provided with the 3D original image, and the flat display unit avoids an area overlapping the parallax direction with respect to the 3D original image. Is formed by laminating the parallax sheet on the surface of the image sheet,
Of the display sheet, in the function display area corresponding to the flat display unit, the degree to which the line-of-sight direction of the left eye and the line-of-sight direction of the right eye are separated is suppressed compared to at least the area corresponding to the 3D original image. It is preferable that

  When the flat display unit is expected via the parallax sheet, the visibility of the function display may be impaired by the action of the parallax sheet even if the stereoscopic display effect is set to zero. Thus, in the function display area corresponding to the flat display unit, the visibility of the function display can be further improved by suppressing the degree of the line-of-sight direction segmentation by the parallax sheet.

In the operation input device according to a preferred aspect of the present invention, the display sheet includes, as the parallax sheet, a lenticular lens sheet in which lenses having a convex cross section are arranged in parallel in a bowl shape, and the lenticular lens sheet. A transparent sheet that is laminated on the surface of the material to form the operation surface,
In the function display area, a gap between the lenticular lens sheet and the transparent sheet is filled with a filling material to suppress light refraction, whereby the left eye gaze direction and the right eye gaze direction are It is preferable that the degree of division is suppressed as compared with at least a region corresponding to the 3D original image.

  In this case, a smooth operation surface can be realized and aesthetics can be improved. Furthermore, the boundary of the function display area in which the action of the lenticular lens sheet is suppressed can be made inconspicuous. For example, if the transparent sheet in which the filling material is applied in advance to a portion corresponding to the flat display portion is prepared and affixed to the surface of the display sheet, the above laminated state can be realized relatively easily. .

  In addition, as a method of suppressing the action of the lenticular lens sheet, a method of scraping and smoothing the bowl-shaped surface shape of the lenticular lens sheet, or a method of smoothing the surface by depositing other materials on the bowl-shaped surface Alternatively, a method of providing a through hole is conceivable. In the case where other materials are stacked on the surface of the lenticular lens sheet, it is more effective to select the same material as the lenticular lens sheet forming material or a material having a similar refractive index.

The perspective view which shows the operation switch panel in an Example. The front view which shows the washstand in which the operation switch panel was attached in the Example. Sectional drawing which shows the cross-section of the operation switch panel in an Example. Explanatory drawing which shows the assembly structure of the operation switch panel in an Example. Explanatory drawing which shows the laminated structure of the display sheet in an Example. The figure which shows the back surface of a transparent sheet in an Example, and its cross-section. Sectional drawing which shows the cross-section of the display sheet in an Example. The block diagram which shows the system configuration | structure of the operation switch panel in an Example. Explanatory drawing which shows a mode that a non-contact operation is detected in an Example.

(Example)
This example relates to an operation switch panel (operation input device) 1 that optically detects a non-contact operation. The contents will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the operation switch panel 1 of this example is an operation input device for turning on / off the illumination lamp 71 of the washstand 7 and the anti-fogging heater (not shown) of the mirror 72. The operation switch panel 1 is attached to the front surface of a bowl-shaped counter 73 provided along the lower edge of the mirror 72.

  As shown in FIGS. 1 to 3, two operation switches 15 are provided on the smooth operation surface 10 without unevenness of the operation switch panel 1. The operation switch 15 includes a left illumination switch 15A and a right anti-fogging switch 15B. Each operation switch 15 is a non-contact switch in which the operation mark 200 is displayed in a three-dimensional manner corresponding to the detection region 300 (FIG. 3) for detecting the non-contact operation.

The floating amount of the operation mark 200 is set so as to substantially match the height of the detection area 300. In the operation switch panel 1, the corresponding operation switch 15 can be operated in a non-contact manner by operating any one of the operation marks 200 with a fingertip or the like.
On the operation surface 10, a function display 155 for displaying the switch function in a two-dimensional (non-three-dimensional) manner is displayed at an adjacent position above each operation switch 15. Furthermore, a strip-shaped window 12 that transmits LED light is formed in the entire width direction below the operation surface 10 that is below each operation switch 15.

  As shown in FIGS. 3 and 4, the operation switch panel 1 is formed using a box-shaped housing 11 having a shallow bottom. A display sheet (three-dimensional display means) 2 for displaying the operation mark 200 in a three-dimensional manner is attached to the surface on the operation surface 10 side. Inside the housing 11, the control board 3, the reflection plate 14 that forms an optical element, and the like are accommodated. At a position expected through the belt-like window 12, a long and thin rectangular plate-like reflecting plate 14 is disposed in an inclined state with respect to the operation surface 10.

  As shown in FIGS. 4 and 5, the display sheet 2 has a three-layer structure in which a 3D image sheet 25, a lenticular lens sheet (parallax sheet) 23, and a transparent sheet 21 are laminated in order from the back side. In the display sheet 2, a transmission window 20 constituting the window 12 is formed.

  As illustrated in FIGS. 1 and 5, the 3D image sheet 25 is a sheet on which a 3D original image 200 </ b> S that is an original picture of the operation mark 200 is printed on the surface of the transparent base sheet. In the 3D image sheet 25, a strip-shaped left image area 251 printed with a divided left image obtained by dividing the left image observed in the left eye in the vertical direction, and a divided right image obtained by dividing the right image observed in the right eye in the vertical direction. Strip-shaped right image areas 253 on which images are printed are alternately arranged in the left-right direction corresponding to the parallax direction. The 3D original image 200S is an original picture of a stereoscopic image in which a predetermined parallax is provided between the left image and the right image. In this example, an original picture corresponding to the operation mark 200 of the illumination switch 15A and an original picture corresponding to the operation mark 200 of the anti-fogging switch 15B are provided as the 3D original image 200S. Each is an original picture for stereoscopic display of the single-color circular operation mark 200, and only the display color is different.

In the 3D image sheet 25 of this example, a flat display unit 155S corresponding to a function display 155 (see FIG. 1) for displaying a switch function is disposed at a position corresponding to the upper side of each 3D original image 200S. On the flat display unit 155S corresponding to the illumination switch 15A, a graphic symbolically representing a lighted bulb is printed. A symbol figure of the electric heater is printed on the flat display portion 155S corresponding to the anti-fogging switch 15B. In these flat display units 155S, the parallax between the left image and the right image is set to zero so that the stereoscopic display effect does not occur.
A strip-shaped transparent region 250 on which nothing is printed is provided across the entire width direction below the 3D original image 200S. The transparent region 250 constitutes the transmission window 20 of the display sheet 2.

  The lenticular lens sheet 23 is a transparent sheet made of vinyl chloride resin. On the surface, a plurality of ridge-shaped convex portions 231 that cover one set of the left image area 251 and the right image area 252 are provided for each set of the left image area 251 and the right image area 253. Each of the hook-shaped convex portions 231 exhibits a lens effect of dividing the line-of-sight direction of the left eye and the line-of-sight direction of the right eye. Due to such a lens effect, the left image of the 3D image sheet 25 is formed on the retina of the viewer's left eye, and the right image is formed on the retina of the right eye. In addition, the protrusion height of the bowl-shaped convex part 231 is about 0.1 to 0.3 mm.

  As shown in FIGS. 5 and 6, the transparent sheet 21 is a colorless and transparent smooth film sheet. According to the transparent sheet 21, the smooth operation surface 10 can be realized, and the aesthetic appearance of the operation switch panel 1 can be improved. Further, it is possible to suppress the adhesion of dirt to the operation surface 10 and facilitate the wiping operation. On the pasting surface (back surface) of the transparent sheet 21, dots 211 to which a transparent adhesive is applied are arranged in a dotted pattern on the entire surface excluding the area corresponding to the flat display portion 155 </ b> S. On the other hand, a vinyl acetate resin adhesive material is screen-printed in the function display area 210 corresponding to the flat display portion 155S, and a printed layer 212 having a height of about 0.2 to 1.0 mm is formed. This adhesive material is substantially the same component as a so-called woodwork bond, and becomes colorless and transparent as it hardens. The refractive index of light 1.54 of the vinyl acetate resin is about the same as 1.46 of the vinyl chloride resin constituting the lenticular lens sheet 23.

  If the transparent sheet 21 is subjected to low pressure bonding with respect to the lenticular lens sheet 23, the two can be bonded and bonded with high reliability through the dotted dots 211 on the back surface of the lenticular lens sheet 23. At this time, among the dots 211 of the dotted transparent adhesive material, the dots that hit the top of the convex portion 231 of the lenticular lens sheet 23 function effectively as an adhesive, and the other dots remain as they are without contributing to adhesion. Harden.

  On the other hand, as shown in FIG. 7, the vinyl acetate resin-based adhesive material of the printing layer 212 flows into the gap between the sheets when the transparent sheet 21 and the lenticular lens sheet 23 are subjected to low pressure bonding. Specifically, among the adhesive material of the printing layer 212, the adhesive material around the contact portion of the convex portion 231 that presses against the transparent sheet 21 is pushed out to the periphery in accordance with the contact. As a result, in the function display area 210, the adhesive material flows into the groove portion between the convex portions 231, thereby filling the gap between the transparent sheet 21 and the lenticular lens sheet 23 with the adhesive material. The adhesive material is then cured to become colorless and transparent, and is held as a filling material 212S between the transparent sheet 21 and the lenticular lens sheet 23.

  As shown in FIG. 8, the control board 3 includes a light emitting unit 31 using an LED element, a light receiving unit 33 using a PSD (Position Sensitive Device), and a detection control unit 301 that controls the light emitting unit 31 and the light receiving unit 33. , An operation detection unit 302 that detects an operation, and a switching control unit 303 that executes a switch operation (on / off operation) according to the operation. On the substrate of the control board 3, in addition to the one-chip microcomputer 30 having the functions of the detection control unit 301, the operation detection unit 302 and the switching control unit 303, the light emitting unit 310 that forms the light emitting unit 31 and the light receiving unit that forms the light receiving unit 33. 330 and the like are arranged (see FIGS. 3 and 4). In this example, a combination of the light emitting unit 31, the light receiving unit 33, the detection control unit 301, and the operation detecting unit 302 constitutes an operation detecting unit.

  In the control board 3 of this example, two sets of light emitting units 310 and light receiving units 330 are arranged. One set corresponds to the lighting switch 15A (see FIG. 1), and the other set corresponds to the anti-fogging switch 15B (see FIG. 1). On the control board 3, the light emitting unit 310 and the light receiving unit 330 are arranged so as to look at the reflecting plate 14.

The detection control unit 301 controls the light emitting unit 310 and the light receiving unit 330 so that the light receiving and emitting operations are executed in synchronization, and takes in the sensor signal output from the PSD constituting the light receiving unit 330 to the operation detecting unit 302. input.
The operation detection unit 302 specifies the incident position of the reflected light with respect to the PSD based on the sensor signal acquired from the detection control unit 301, and measures the distance to the detection target based on the principle of triangulation. The operation detection unit 302 determines that there is an operation when a distance corresponding to the detection region 300 (see FIG. 3) is measured, and outputs an operation detection signal. The operation detection signal includes a signal corresponding to the lighting switch 15A and a signal corresponding to the anti-fogging switch 15B.

  The switching control unit 303 executes a predetermined switch operation when the operation detection signal is received from the operation detection unit 302. When the operation detection signal corresponding to the illumination switch 15A is captured, the illumination lamp 71 is switched on / off. When the operation detection signal corresponding to the anti-fogging switch 15B is received, the anti-fogging heater (not shown) is switched on / off.

  As shown in FIG. 9, the operation switch panel 1 configured as described above specifies the position where the reflected light (from the detection target) incident on the PSD (light receiving unit 330) according to the light projection by the light emitting unit 310 is incident. Then, the distance to the object to be detected is measured by the principle of so-called triangulation. Then, the presence / absence of a non-contact operation is detected according to the measurement distance, and the corresponding operation switch 15 is switched on / off according to the detection. According to the operation switch panel 1, an on / off operation of the illumination lamp 71 and the like can be performed by a non-contact operation with respect to the operation mark 200 displayed in 3D.

  When looking at the operation surface 10 on which the display sheet 2 is disposed, the right image is visually recognized by the viewer's right eye, and the left image is visually recognized by the left eye. In the 3D image sheet 25 of this example, the parallax between the left image and the right image is set for the 3D original image 200S that is the original picture of the operation mark 200 (see FIG. 1). Therefore, the operation mark 200 is three-dimensionally raised from the operation surface 10 and is visually observed. On the other hand, the function display 155 of each flat display unit 155S in which the parallax between the left image and the right image is set to zero is viewed in a plane without appearing to rise from the operation surface 10.

  In general, stereoscopic display can realize a remarkable visual effect of popping out an image from the surroundings and making it stand out, but may cause image fluctuation such as distortion or blurring of the image depending on the expected direction. In particular, when observing three-dimensionally displayed characters, fine figures, and the like, uncomfortable feelings such as seasickness may occur due to image fluctuations or the like.

  In the operation switch panel 1 of this example, the operation mark 200 indicating the position of each operation switch 15 is displayed three-dimensionally, while the function display 155 representing the switch function is displayed in a plane. With the function display 155 displayed on a plane, the operator can quickly and reliably recognize the switch function without causing discomfort due to image fluctuation or the like. On the other hand, the operation mark 200 displayed in a three-dimensional manner can sufficiently achieve the purpose of intuitively presenting the operation position with a simple shape such as a circular shape, a spherical shape, or a polygonal shape. In this example, the circular shape is three-dimensionally displayed, but if it is a simple shape, even if the expected direction changes, the change in appearance is less than that of characters and the like, and the visibility is not greatly reduced. In addition, even if image fluctuation or the like occurs, the operator is less likely to feel uncomfortable.

  Furthermore, the display sheet 2 of this example is characterized by the cross-sectional structure (see FIG. 7) of the function display area 210 corresponding to the flat display unit 155S, and an effective operation effect is realized by the structure. That is, in the function display area 210 of the display sheet 2 of this example, the gap between the transparent sheet 21 and the lenticular lens sheet 23 is filled with the colorless and transparent filling material 212S. As described above, the filling material 212S is a vinyl acetate resin, and the refractive index of light is similar to that of the vinyl chloride resin forming the lenticular lens sheet 23. Therefore, in the function display area 210, the lens effect by the lenticular lens sheet 23 is suppressed to near zero. In the flat display unit 155S expected through the function display area 210, the function display 155 is clearly and clearly visible as in the case of using only the transparent sheet 21. There is little possibility that the visibility of the function display 155 is impaired by the vertical stripe pattern formed by the hook-shaped convex portions 231.

  As described above, according to the operation switch panel 1 of this example, the switch function can be presented with high reliability by the function display 155 displayed on the plane, and the non-contact operation position is operated by displaying the operation mark 200 having a simple shape in three dimensions. Can be intuitively recognized. The operator of the operation switch panel 1 can quickly select the target operation switch 15 on the function display 155 and can perform the switch operation with high reliability by touching the corresponding operation mark 200 with a fingertip or the like. This operation switch panel 1 realizes a good operation feeling in non-contact operation by utilizing the advantages while suppressing the adverse effects caused by the stereoscopic display.

  In this example, a flat display unit 155S is arranged above the operation mark 200. The flat display unit 155S corresponding to the function display 155 may be any position as long as it can be recognized as corresponding to the operation mark 200 when viewed from the operator side. However, in the parallax direction (left-right direction), it is preferable to arrange the flat display unit 155S while avoiding an area overlapping with the 3D original image 200S (an area indicated by reference numeral 200M in FIG. 5). This is because the operation mark 200 displayed in a three-dimensional manner may move or fluctuate in the parallax direction depending on the expected direction, and may block the flat display unit 155S and hinder the display of the function display 155. is there.

In this example, the transparent sheet 21 is pasted on the surface side of the display sheet 2. The transparent sheet 21 is not essential and can be omitted. Moreover, it is not essential to suppress the lens effect of the lenticular lens sheet 23 in the function display area 210.
In this example, the lens effect is suppressed by filling the filling material 212S between the transparent sheet 21 and the lenticular lens sheet 23 in the function display area 210. In the function display area 210, if the surface of the lenticular lens sheet 23 is formed as a smooth surface or if a through hole is provided in the lenticular lens sheet 23, the lens effect can be suppressed as in this example.

  In the operation switch panel 1 of this example, the light emitting unit 310 and the light receiving unit 330 are disposed on the back side of the operation surface 10, while an optical path is configured using the reflector 14. The light emitting unit 310 and the light receiving unit 330 may be arranged in the space on the outer peripheral side of the display sheet 2 so as to look at the detection region 300.

  In this example, a stereoscopic display means using the lenticular lens sheet 23 is employed. As a stereoscopic display method, instead of the lenticular method of this example, a parallax barrier (parallax barrier) method that realizes stereoscopic display by forming different images on the left and right eyes using a slit, liquid crystal, or the like, Other three-dimensional display methods such as a holographic method that enables three-dimensional display using a hologram and a microlens array can also be employed.

  In this example, the non-contact operation is optically detected by the combination of the LED element and the PSD. Instead of the PSD, a light receiving unit that detects the presence or absence of light reception may be employed. According to this configuration, it is possible to detect a finger or the like inserted into the detection region based on the presence or absence of reflected light. Further, a light receiving unit capable of measuring the amount of received light can be employed instead of PSD. According to this configuration, the distance can be measured according to the attenuation ratio of the reflected light with respect to the projection light, and a non-contact operation can be detected.

  This example is an example related to the operation switch panel 1 of the wash basin, but the operation target is a toilet with a shower function, a hot water supply device, an air conditioner, a water supply device, a kitchen faucet, a kitchen stove, etc. There may be. When the hot water supply device is an operation target, an operation panel similar to the operation switch panel 1 of this example may be set on a wall surface of a bathroom or the like. Furthermore, the operation input device of this example can be incorporated in the target device.

In this example, an on / off switch is illustrated as an operation switch. The operation switch may be a switch for inputting a slide operation for moving the fingertip horizontally along the operation surface or a dial operation for moving the fingertip along the operation surface so as to draw an arc. Furthermore, a switch for inputting a three-dimensional operation for moving the fingertip closer or away along the normal direction of the operation surface may be used.
In this example, as the operation switch panel 1, an apparatus having a planar operation surface 10 is illustrated. The operation surface is not limited to a flat surface, and may be a curved surface.

  As described above, specific examples of the present invention have been described in detail as in the embodiments. However, these specific examples merely disclose an example of the technology included in the scope of claims. Needless to say, the scope of the claims should not be construed as limited by the configuration, numerical values, or the like of the specific examples. The scope of the claims includes techniques obtained by variously modifying or changing the specific examples using known techniques, knowledge of those skilled in the art, and the like.

DESCRIPTION OF SYMBOLS 1 ... Operation switch panel (operation input device), 10 ... Operation surface, 12 ... Window, 14 ... Reflecting plate, 15 ... Operation switch, 155 ... Function display, 155S ... Planar display part, 2 ... Display sheet (stereoscopic display means) 20 ... transparent window, 200 ... operation mark (switch display), 200S ... 3D original image, 21 ... transparent sheet, 210 ... function display area, 212 ... printing layer, 212S ... filling material, 23 ... lenticular lens sheet (parallax sheet) ), 25 ... 3D image sheet, 3 ... control board, 30 ... 1 chip microcomputer, 300 ... detection area, 302 ... operation detection unit, 31 ... light emitting unit, 310 ... light emitting unit, 33 ... light receiving unit, 330 ... light receiving unit, 7 ... Washbasin, 71 ... Lighting lamp, 72 ... Mirror

Claims (4)

An operation input device provided on the operation surface side with an operation switch operable without contact,
Operation detecting means for detecting a non-contact operation by detecting a human body such as a fingertip in a detection region provided in the space on the operation surface side;
Stereoscopic display means for stereoscopically displaying a switch display indicating the position of the detection region of the operation detection means;
A plane display unit that planarly displays a function display representing the function of the operation switch,
On the operation surface side, an operation input device in which switch display by the stereoscopic display unit and function display by the flat display unit are displayed corresponding to the operation switch. 2. The stereoscopic display unit according to claim 1, wherein the left image of the switch display to be observed by the left eye is divided in a predetermined direction, and the right image of the switch display to be observed by the right eye is divided in a predetermined direction. A parallax sheet that divides a gaze direction of the left eye that looks at the divided left image and a gaze direction of the right eye that looks at the divided right image with respect to the 3D original image in which the divided right images are alternately arranged in the parallax direction Including a laminated display sheet,
The flat panel display unit that displays the function display is an operation input device that is arranged so as to avoid a region overlapping with the 3D original image in the parallax direction in the outer peripheral region of the 3D original image. 3. The display sheet according to claim 2, wherein the 3D original image is provided, and the flat display unit is provided to avoid an area overlapping the parallax direction with respect to the 3D original image. And is formed by laminating the parallax sheet on the surface of the image sheet,
Of the display sheet, in the function display area corresponding to the flat display unit, the degree to which the line-of-sight direction of the left eye and the line-of-sight direction of the right eye are separated is suppressed compared to at least the area corresponding to the 3D original image. Operation input device. 4. The display sheet according to claim 3, wherein the display sheet includes, as the parallax sheet, a lenticular lens sheet in which lenses having a convex cross section are arranged in parallel in a bowl shape, and is laminated on a surface of the lenticular lens sheet. Having a transparent sheet to form
In the function display area, a gap between the lenticular lens sheet and the transparent sheet is filled with a filling material to suppress light refraction, whereby the left eye gaze direction and the right eye gaze direction are An operation input device in which the degree of division is suppressed at least compared to a region corresponding to the 3D original image.

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