JP5817407B2 - Display device - Google Patents

Description

  The present invention relates to a display device.

  There has been proposed an apparatus that allows a user to try on a selected product on the body and select the product by observing the try-on state by himself (Patent Documents 1 and 2). In this patent document 1, a display device is disclosed in which a person wearing a pair of glasses is photographed by himself and a plurality of photographed images can be displayed on a monitor. Patent Document 2 discloses a display device that can reproduce a state in which a purchaser does not actually try on clothes. Here, a method is employed in which the body shape and skin color of the mannequin image are converted so as to approach the person trying on, and the image is synthesized without a sense of incongruity. With such a display device, the purchaser can compare a plurality of patterns of try-on while viewing the image displayed on the monitor, and can select a favorite product alone.

JP 2011-040953 A JP 09-106419 A

  However, in the above-described conventional technology, a comparative study is subsequently performed on the basis of a photographed image, and a try-on study cannot be performed in real time. Further, the image displayed on the monitor is planar, and there is a problem that the fitting appearance cannot be confirmed with a three-dimensional image like a mirror.

  The present invention has been made in view of the above-described problems of the prior art, and allows a purchaser to confirm and compare the fitting state of a plurality of products in real time with a stereoscopic image such as a mirror. One of the purposes is to provide.

  The display device of the present invention includes a display unit that displays an image, a first projection unit that projects and images the image displayed on the display unit, and an imaging position of the projection image that is projected by the first projection unit. Rather, transflective means provided at a position distant from the first projection means.

  According to this, the observer can superimpose and view the real image formed in the space between the first projecting means and the transflective means and the virtual image reflected by the transflective means. . For example, since the observer can see the appearance of the image projected on the transflective means and the image (product image) formed by the first projecting means in an overlapping manner, the three-dimensional self like a mirror Can be checked in real time. Thereby, favorite goods can be selected, without trying on goods.

The display unit may include a projector including a second projection unit and a transmission screen that displays a projection image from the second projection unit.
According to this, since the projector and the transmissive screen are used as the display means, the observer reflects the real image formed in the space between the first projection means and the semi-transmissive reflective means and the self reflected by the semi-transmissive reflective means. And the virtual image can be viewed in a superimposed manner, and the emission angle of light emitted from the display means can be easily set within a predetermined range.

The surface of the transmissive screen on the transflective means side may be provided with irregularities so that the projection positions of the projected images are different.
According to this, since the projected image becomes a three-dimensional real image, an image suitable for the observer's body and face can be displayed in a three-dimensional manner by making the unevenness into the shape of a human body or a human face. Thereby, a more natural composite image can be provided.

The first projection unit may include a moving unit capable of moving in the optical axis direction of the first projection unit.
According to this, the position of the aerial image can be adjusted to a position that is easy for an observer to see.

Moreover, it is good also as a structure provided with the housing | casing which accommodates the said projector, the said transmissive screen, the said 1st projection means, and the said semi-transmissive reflective means, and the exchange means which replaces | exchanges the said transmissive screen.
According to this, since each component of a display apparatus can be accommodated in a housing | casing and these can be protected and a mutual positional relationship is fixed suitably, handling is easy.

Moreover, it is good also as a structure by which the said unevenness | corrugation is formed in the cylindrical shape so that the external shape of a person may be followed.
According to this, since it is possible to confirm the appearance of one's own try-on in real time without trying on a product such as clothing, it is possible to efficiently select a favorite product.

The unevenness may be formed in a shape imitating a human face.
According to this, by displaying an image in which the makeup method, color tone, darkness, and the like are changed, the observer can simulate a favorite cosmetic product and makeup method without attaching the cosmetic product to his / her face. .

Moreover, it is good also as a structure by which the said unevenness | corrugation is formed in the shape imitating the shape of spectacles.
According to this, since it is possible to confirm in real time the appearance of one's own try-on of a product such as glasses, it is possible to efficiently select a desired product.

The figure which shows typically the structure of the display apparatus of 1st Embodiment. It is a figure which shows a rear screen, Comprising: (A) Front view, (B) Sectional drawing which follows A-A 'line. The figure for demonstrating the display principle of an aerial image. The perspective view which shows typically the structure of the display apparatus of 2nd Embodiment. The figure for demonstrating the display principle of an aerial image. The perspective view which shows typically the structure of the display apparatus in 3rd Embodiment. The perspective view which shows the structure of the rear screen of the display apparatus in 4th Embodiment. The perspective view which shows the structure of the rear screen of the display apparatus in 5th Embodiment. The perspective view which shows the structure of the display apparatus of 6th Embodiment. The side view which shows the state by which the rear screen was hold | maintained at the slide mechanism.

  Embodiments of the present invention will be described below with reference to the drawings. In each drawing used for the following description, the scale of each member is appropriately changed to make each member a recognizable size.

  The display device in each embodiment is installed in a store or the like, and forms a spatial image Z in which a purchaser tries on a product. The purchaser can confirm the aerial image Z by looking at the direction of the display device, and can select a product while comparing the appearance of trying on a plurality of products.

[First Embodiment]
FIG. 1 is a diagram schematically illustrating the configuration of the display device according to the first embodiment. FIGS. 2A and 2B are views showing a rear screen, where FIG. 2A is a front view and FIG. 2B is a cross-sectional view taken along line AA ′.

  As shown in FIG. 1, a display device 100 according to this embodiment includes a projector (display unit) 1, a rear screen (transmission type screen, display unit) 2, a Fresnel lens (first projection unit) 3, and a half mirror. (Semi-transmissive reflection means) 4. The projector 1 is equipped with a light valve 5, a projection lens (second projection means) 6 and the like, and is connected with a video signal generation means such as a personal computer (not shown). The projector 1 projects an image on the rear screen 2 based on the image signal input from the image signal generating means. On the optical path of light emitted from the projector 1, a rear screen 2, a Fresnel lens 3, and a half mirror 4 are arranged in this order from the projector 1 side.

  The rear screen 2 has a light diffusion function. As shown in FIG. 2, the rear screen is configured by adhering a Fresnel lens 2A and a diffusion sheet 2B, and is installed with the Fresnel lens 2A side facing the projector 1 side. For this reason, the light emitted from the projector 1 enters the Fresnel lens 2A. The Fresnel lens 2A has a plurality of prisms 13 provided concentrically at minute intervals.

  The projection light emitted from the projector 1 is divergent light before being incident on the rear screen 2, but is incident on the diffusion sheet 2B in a state of being focused to some extent in the optical axis direction by the action of the Fresnel lens 2A. In the diffusion sheet 2B, the projection light forms an image, and after the image is formed, the projection light diffuses at a preset angle. The focal length of the Fresnel lens 2A may be set so that the appearance of the aerial image Z is optimized. Moreover, the structure which installs so that the diffusion sheet 2B side may face the projector 1, and the projection light from the projector 1 injects into the diffusion sheet 2B may be sufficient. Even in this case, a function substantially equivalent to the above can be realized.

  The basic configuration of the Fresnel lens 3 is the same as that of the Fresnel lens 2A that forms part of the rear screen 2, but the overall dimensions, the dimensions of the prisms 13, and the focal position are different. The optical axis of the rear screen 2 and the optical axis of the Fresnel lens 3 coincide. The optical axis of the rear screen 2 is an axis that passes through the center of the projection surface of the rear screen 2 and is perpendicular to the projection surface of the rear screen 2.

The half mirror 4 is disposed closer to the observer K than the Fresnel lens 3. Specifically, it is provided at a position farther from the Fresnel lens 3 than the imaging position of the projected image projected from the Fresnel lens 3. The half mirror 4 reflects a part of incident light and transmits a part thereof.
When the image light is projected from the projector 1, the observer K located in front of the half mirror 4 can superimpose on the mirror image projected on the half mirror 4 and visually recognize his / her appearance. On the other hand, when an image is not projected from the projector 1, the observer K positioned in front of the half mirror 4 visually recognizes the light incident and reflected from the front side of the half mirror 4 as a mirror image. That is, the observer K can use the half mirror 4 as a normal mirror.

Next, the principle that an aerial image is generated by the display device having the above configuration will be described.
FIG. 3 is a diagram for explaining the aerial image display principle.
The light valve 5 in the projector 1 displays an image of the mounted product by a circuit (not shown) and is projected and displayed on the rear screen 2. This image is formed as a real image in space by the Fresnel lens 3. Furthermore, the observer K can observe a real image through the half mirror 4. At this time, assuming that the distance between the real image and the half mirror 4 is d, the observer K stands at a position away from the half mirror 4 by the distance d, so that the virtual image and the real image due to his / her own reflection are positioned at substantially the same position. You can see it synthesized.

  For example, when a photograph of clothes or a CG image is projected from the projector 1 onto the rear screen 2, the observer K sees his virtual image and the actual image of the clothes through the half mirror 4. At this time, the observer K can determine the position where the virtual image of his / her own and the real image of the clothes are most naturally synthesized by moving slightly forward / backward / left / right.

According to the configuration of the present embodiment, the observer K can observe the real image generated in the space between the Fresnel lens 3 and the half mirror 4 through the half mirror 4. That is, since the observer K can simultaneously see the virtual image of the observer K himself / herself that is generated by reflection by the half mirror 4 and the real image (for example, the real image of clothing) generated in the space, the half mirror 4 By standing in front of you, you can superimpose your real image on your own virtual image.
For this reason, when an observer selects a product, the three-dimensional appearance of the mirror like a mirror can be confirmed in real time, so it is possible to easily select a favorite one without trying on the product. .
In the present embodiment, the projector 1 is configured to project and display on the rear screen 2, but a flat panel display may be used instead. In this case, the flat panel display may be arranged at the position of the rear screen 2 of the present embodiment.

[Second Embodiment]
Next, a display device according to a second embodiment will be described.
FIG. 4 is a perspective view schematically showing the configuration of the display device of the second embodiment. FIG. 5 is a diagram for explaining the aerial image display principle.
The rear screen 2 of the display device 200 according to the present embodiment is provided with an unevenness 20 that swells in a cylindrical shape toward the Fresnel lens 3 side at the center of the front surface 2a.
When a photograph of clothes or a CG image is projected from the projector 1 onto the rear screen 2, the projected image is reflected by the Fresnel lens 3 on the opposite side of the rear screen 2 (the space between the Fresnel lens 3 and the half mirror 4. ) Is formed as a real image. Since the central portion of the rear screen 2 of the present embodiment swells in a cylindrical shape, a real image is also swelled and formed in a cylindrical shape. For this reason, the image of the clothes as well as the virtual image of the observer K can be seen stereoscopically from the observer K, so that it can be confirmed as a more natural composite image.

Here, as shown in FIG. 5, when the distance between the rear screen 2 and the Fresnel lens 3 is a, the distance between the Fresnel lens 3 and the virtual image is b, and the focal length of the Fresnel lens 3 is f.
1 / f = 1 / a + 1 / b is established.
Further, the magnification (lateral magnification Mt) of the size of the real image with respect to the size of the projected image on the rear screen 2 is Mt = b / a.

Here, the magnification in the optical axis direction of the lens (vertical magnification Ml) is
Ml = (Mt) ² .
Therefore, if the thickness of the real image in the optical axis direction is T, the bulge B of the unevenness 20 of the rear screen 2 is
B = T / Ml = T / (Mt) ² may be set.

  According to the configuration of the present embodiment, the projection position of the projected image can be varied by providing the unevenness 20 on one surface side of the rear screen 2. Since one surface (surface on the Fresnel lens 3 side) side of the rear screen 2 is a non-planar shape processed into a shape related to the image projected onto the rear screen 2 by the projector 1, the projected image has a shape with a depth. It becomes a real image, and a three-dimensional image suitable for the shape of the observer K's body and face can be displayed. Thereby, a more natural composite image can be provided.

[Third Embodiment]
Next, the configuration of the display device according to the third embodiment will be described.
FIG. 6 is a perspective view schematically showing the configuration of the display device according to the third embodiment.
The display device 300 according to the present embodiment is different from the second embodiment in that the Fresnel lens is movable.

Below the Fresnel lens 3, a lens moving mechanism (moving means) 21 capable of translating the Fresnel lens 3 in the optical axis direction of the projector 1 is provided.
The lens moving mechanism 21 has a pair of guide portions 22, 22 extending in parallel with the optical axis LX on both sides of the Fresnel lens 3. The lower end side of the Fresnel lens 3 is supported by the pair of guide portions 22 and 22 via a mounting portion (not shown), and the mounting portion is slid along the guide portions 22 and 22 so that the Fresnel lens 3 is moved in the optical axis direction. Can be moved in parallel. By being configured to be able to adjust the position of the Fresnel lens 3 on the optical path, the position where the aerial image is formed can be adjusted to a position that is easy for the observer K to see.

Since the distance b between the Fresnel lens 3 and the virtual image is 1 / b = 1 / f−1 / a,
b = f (1 + Mt).

The distance from the rear screen 2 to the real image is a + b = (f (1 + Mt) ² ) / Mt
It becomes.

  By moving the position of the Fresnel lens 3, the size of the real image can be changed only by changing the lateral magnification Mt. At this time, the position of the real image moves as indicated by the above formula.

  According to the configuration of the present embodiment, since the Fresnel lens 3 is provided with the lens moving mechanism 21 capable of translating along the optical axis LX, the Fresnel lens 3 is generated based on the image projected on the rear screen 2 and the shape of the rear screen 2. Since the size of the real image can be changed, for example, the size of the clothes to be displayed can be changed in accordance with the size of the body of the observer K.

[Fourth Embodiment]
Next, the configuration of the rear screen of the display device in the fourth embodiment will be described.
FIG. 7 is a perspective view showing the configuration of the rear screen of the display device according to the fourth embodiment.
As shown in FIG. 7, the rear screen 24 has irregularities 25 that imitate the shape of a human face. The unevenness 25 is located at the center of the front surface 2a of the rear screen 2 and protrudes toward the Fresnel lens 3 side.
Since the real image formed in the space is inverted vertically and horizontally by the Fresnel lens 3, the unevenness 25 of the rear screen 24 is provided so that the face shape is upside down and left and right when viewed from the front surface 2a side. Yes.

  From the projector 1, a face photograph or a CG image is projected onto the rear screen 24 with a size that substantially matches the shape of the unevenness 25. Then, the observer K stands at a position where the position of his / her face matches the real image of the generated space, so that his / her face can be seen almost coincident with the projected face. Here, in the projected image to be displayed, a photograph or image in which the makeup method, color tone, darkness, etc. are changed is prepared, and by selectively switching, the observer K likes the cosmetics and the makeup method while simulating the cosmetics and the makeup method. Can choose.

[Fifth Embodiment]
Next, the configuration of the rear screen in the display device of the fifth embodiment will be described.
FIG. 8 is a perspective view showing the configuration of the rear screen of the display device in the fifth embodiment.
As shown in FIG. 8, the rear screen 26 has irregularities 27 simulating the shape of glasses. The unevenness 27 is also located at the center of the front surface 2a of the rear screen 26 and protrudes toward the Fresnel lens 3 side.
Since the real image formed in the space is inverted vertically and horizontally by the Fresnel lens, the unevenness 27 of the rear screen 26 is also provided so that the top, bottom, left and right of the glasses shape are reversed when viewed from the front surface 2a side. .

  From the projector 1, a photograph of a pair of glasses and a CG image are projected onto the rear screen 26 with a size that substantially matches the shape of the unevenness 27. Then, the observer K stands in a position where the position of his / her face matches the real image of the generated space, so that the projected glasses match the position of the eyes of his / her face. Can do. In other words, you can see as if you were wearing glasses.

  Here, in the projection image to be displayed, a plurality of glasses photographs and CG images are prepared in advance, and by selectively switching, the observer K can select his / her favorite frame so as to change glasses. it can.

[Sixth Embodiment]
Next, the configuration of the display device according to the sixth embodiment will be described.
FIG. 9 is a perspective view showing the configuration of the display device of the sixth embodiment. FIG. 10 is a side view showing a state in which the rear screen is held by the slide mechanism.
As shown in FIG. 9, in the display device 400 of the present embodiment, the projector 1, the rear screen 2, the Fresnel lens 3 and the like are accommodated in the casing 31, and the Fresnel lens 3 is moved by a lens provided at the lower part thereof. The mechanism 21 is held movably.

  The lens moving mechanism 21 has a pair of guide portions 22, 22 extending in parallel with the optical axis LX on both sides of the bottom portion of the housing 31. The lower end side of the Fresnel lens 3 is supported by the pair of guide portions 22 and 22 via a mounting portion (not shown), and the mounting portion slides along the guide portions 22 and 22 to be movable in the optical axis direction. . Thereby, the Fresnel lens 3 can be fixed at a predetermined position. As a result, the position of the aerial image can be adjusted to a position that is easy for the observer to see.

  The housing 31 is a box-shaped member that holds the projector 1, the rear screen 2, the Fresnel lens 3, the half mirror 4, and the like. The housing 31 includes a first housing portion 31A in which the projector 1 is housed, and a rectangular parallelepiped second housing portion 31B in which the Fresnel lens 3 and the lens moving mechanism 21 are housed. In addition, the shape of 31 A of these 1st accommodating parts and the 2nd accommodating part 31B is not restricted to this.

In the present embodiment, an adjustment port 32 that allows the rear screen 2 to be taken in and out is provided on the side surface 31b of the second housing portion 31B of the case, and is installed inside the case 31 via the adjustment port 32. The rear screen 2 can be replaced.
Specifically, the rear screen 2 can be exchanged via the exchange means 34 as shown in FIG. The exchange means 34 is provided on the front surface 33a of the screen mounting plate 33 erected at the boundary portion between the first housing portion 31A and the second housing portion 31B.

  As shown in FIG. 10, the screen mounting plate 33 is provided with an opening 33 </ b> A for transmitting the projection light from the projector 1. The exchanging means 34 has a pair of mounting brackets 35, 35 and a stopper 36 arranged around the opening 33A, and positions the rear screen 2 with respect to the optical axis LX.

  The rear screen 2 is inserted between mounting brackets 35, 35 having a L-shaped cross-sectional view disposed on the front surface 33 a of the screen mounting plate 33 at a predetermined interval in the vertical direction. It is held in a state where the side portion is in contact with a stopper 36 that exists so as to connect the end portions between the opposite mounting brackets 35, 35. That is, the stopper 36 is positioned on the back side of the rear screen 2 when viewed from the adjustment port 32. The position of the rear screen 2 positioned by the stopper 36 is set as a display position. In addition, the pair of mounting brackets 35 and 35 are located at the same distance from the optical axis LX in the vertical direction orthogonal to the optical axis LX. That is, the exchanging means 34 has a positioning function for holding the rear screen 2 so that the center (center portion) of the rear screen 2 is positioned on the optical axis LX of the projector 1.

  The stopper 36 does not have to have a shape that connects the ends of the mounting brackets 35 and 35, and the shape of the stopper 36 is not limited as long as the rear screen 2 can be optimally positioned with respect to the optical axis LX (horizontal positioning). Absent.

When the rear screen 2 installed in the housing 31 is replaced with a rear screen 2 having another form, the rear screen 2 held at the display position as described above by the replacement means 34 is stopped by the user. While being slid in the direction away from 36, it is pulled out to the replacement position and replaced with another rear screen 2 through the adjustment port 32. Then, it is slid along the mounting brackets 35 and 35 until it comes into contact with the stopper 36. In this way, another form of rear screen 2 is installed at the display position.
Thus, by preparing the rear screen 2 in various forms, the rear screen 2 can be easily replaced according to the application.

In addition, since the display unit such as the projector 1 and the rear screen 2 is housed in the housing 31, it is possible to display with high contrast without being affected by the ambient light at the installation location, and to obtain a display image with higher reality. be able to. In addition, since the rear screen 2 can be replaced, a plurality of rear screens 2 can be prepared, and the rear screen 2 can be easily replaced according to the shape of an object to be displayed.
An opening / closing door 37 may be provided at the adjustment port 32.

  As described above, according to each of the above-described embodiments, since the observer K can perform the simulation by wearing the wearing product in real time, in the case of selecting clothes, comparative examination of cosmetics and makeup methods, selecting glasses, etc. Even without wearing an actual product, it is possible to assist the selection of a product in real time as if the actual product was worn. Furthermore, since the displayed real image has a depth, it is possible to confirm the wearing item with a feeling closer to the real thing.

  As described above, the preferred embodiments according to the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the examples. It is obvious for those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea described in the claims. It is understood that it belongs to.

For example, the display device may include a position detection unit that detects the position of the observer. If the position of the image to be displayed can be moved by detecting the position of the observer K with a camera or the like, a real image can be displayed at an optimum position without the observer K moving.
Moreover, you may provide the moving means which can move the rear screen 2 to an optical axis direction. In this way, by providing the rear screen 2 with a moving mechanism, it is possible to automatically adjust together with the moving mechanism of the Fresnel lens 3 and display an image synthesized by the observer K in an optimum state.

  Moreover, the half mirror 4 should just select the density | concentration of reflection and transmission so that the synthesized image may be seen optimally according to the brightness of an environment. Furthermore, if an illuminating device that illuminates the observer K is provided, the brightness of the composite image is adjusted according to the content of the image to be displayed by adjusting the brightness of the illumination. be able to.

  DESCRIPTION OF SYMBOLS 1 ... Projector (display means), 2 ... Rear screen (transmission type screen, display means), 3 ... Fresnel lens (first projection means), 6 ... Projection lens (second projection means), K ... Observer, Z ... Spatial image, 20, 25, 27 ... irregularities, 21 ... lens moving mechanism (moving means), 31 ... housing, 34 ... exchanging means, LX ... optical axis, 100, 200, 300, 400 ... display device

Claims (6)

Display means for displaying an image;
First projection means for projecting and forming an image displayed on the display means;
A transflective means provided at a position farther from the first projection means than the imaging position of the projection image projected by the first projection means ,
The display means includes
A projector provided with a second projection means;
A transmissive screen for displaying a projection image from the second projection means,
The display device according to claim 1, wherein an unevenness is provided on a surface of the transmissive screen on the side of the transflective means, so that an imaging position of the projected image is different . The display device according to claim 1, further comprising a moving unit capable of moving the first projecting unit in an optical axis direction of the first projecting unit. A housing that houses the projector, the transmissive screen, the first projection means, and the transflective means;
The display device according to claim 1 or 2, characterized in that and a replacement means for replacing the transmission screen. The display device according to claim 1 , wherein the unevenness is formed in a cylindrical shape along an outline of a person. The display device according to claim 1 , wherein the unevenness is formed in a shape imitating a human face. The display device according to claim 1 , wherein the unevenness is formed in a shape simulating the shape of glasses.

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