JP2014119687A - Screen device and display device - Google Patents

Abstract

To provide a screen device that gives a projected image a sense of depth and displays it as a pseudo three-dimensional image.
A screen device 40 includes a screen 4 on which an image is projected, and a variable device 7 that deforms a projection surface of the screen 4 by moving end portions 4d and 4e of the screen 4.
[Selection] Figure 1

Description

  The present invention relates to a screen device and a display device.

In recent years, there has been a demand for a video display technique for realizing a more natural view such as a wide field of view and a stereoscopic view. Among the video display technologies, a technology has been proposed in which the screen is deformed to reduce the viewer's uncomfortable feeling about the video (see, for example, Patent Document 1).
The video display system described in Patent Literature 1 includes a screen formed of a stretchable material, a plurality of actuators arranged on the opposite side of the projection surface of the screen, and a control device. The video display system drives the actuator by the control device when the projection plane shape pattern stored in the memory unit of the control device is selected or when a change in the viewpoint position of the user is detected. It is comprised so that a shape may be changed.

JP 2008-107537 A

  However, since the technology described in Patent Document 1 has a configuration in which a large number of actuators are arranged vertically and horizontally on the opposite side of the screen projection surface, the structure for supporting the actuator, wiring processing, and the like become complicated, and the apparatus becomes complicated. Or the problem of becoming large-scale. Further, since the actuator is shaded, there is a problem that it cannot be applied to a transmission type screen.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 A screen device according to this application example includes a screen on which an image is projected, and a variable device that deforms a projection surface of the screen by moving an end of the screen. And

According to this configuration, since the screen device includes the above-described variable device, the projection surface of the screen has various shapes depending on the amount of movement and the direction of movement of the end as well as the flat surface. A non-planar formation is possible. Therefore, by deforming the screen so as to correspond to the image projected on the screen, the image can have a sense of depth and can be displayed as a pseudo three-dimensional image.
Further, since the variable device is configured to move the end of the screen, the projection surface can be deformed without arranging members on the front and back of the projection surface. Thus, the variable device can be used not only for the reflection type but also for the transmission type screen.
Therefore, it is possible to provide a screen device capable of displaying a variety of displays by changing the shape of the projection surface with a simple configuration in which the end of the screen is moved without being limited to the transmission type and the reflection type.

  Application Example 2 In the screen device according to the application example described above, the variable device includes a plurality of moving portions that support end portions of the screen and are arranged along the end portions, and the plurality of movements. It is preferable that the part is configured to be able to change the amount of movement in the direction intersecting the projection surface of the screen.

  According to this configuration, since the variable device includes the moving unit described above, the non-planar shape of the projection surface of the screen is changed according to the amount of movement of the moving unit. In addition, since a plurality of moving parts are arranged at the end part, the screen can be deformed at fine intervals. Therefore, since the projection surface can be made a smoother non-planar surface, the image projected on the projection surface can be displayed as a three-dimensional image that looks more natural.

  Application Example 3 In the screen device according to the application example, the variable device includes a first support portion and a second support portion that respectively support a pair of opposed end portions of the screen, and the first support portion. It is preferable that the distance between the second support portion and the second support portion can be changed.

  According to this configuration, since the variable device includes the first support portion and the second support portion described above, the screen is non-planar depending on the distance between the first support portion and the second support portion to be changed. The shape will be changed. Accordingly, the screen can be deformed with a simpler configuration, and the projection surface can be adjusted to have a desired non-planar shape.

  Application Example 4 In the screen device according to the application example described above, at least one of the pair of facing end portions is configured to be movable in a direction intersecting the direction in which the pair of end portions face each other. Is preferred.

  According to this configuration, since the pair of opposed end portions of the screen are configured as described above, the deformed screen can be further inclined. As a result, it is possible to change the appearance of the image projected on the projection surface of the screen, and thus it is possible to provide a screen device capable of display with more diversity.

  Application Example 5 A display device according to this application example includes the screen device described above and a light source, modulates light emitted from the light source according to image information, and projects an image on the screen. And.

  According to this configuration, since the display device includes the projector that projects an image on the screen described above, the screen can be efficiently deformed in accordance with the image projected on the screen. Therefore, the display device can display the projected image so that the observer recognizes it as a pseudo three-dimensional image.

  Application Example 6 In the display device according to the application example, the projector is configured to be able to transmit shape information related to the shape of the object displayed in the image, and the screen device receives the shape information. Preferably, the variable device deforms the screen based on a reception result of the reception unit.

  According to this configuration, the projector is configured to be able to transmit shape information, and the variable device deforms the screen based on a result of the reception unit receiving this information. For example, it is possible to approximate the object and deform the screen by using information about the depth of the object as the shape information among the image information obtained by capturing the object to be imaged in three dimensions. Accordingly, the display device can display an image that gives a more natural three-dimensional effect that approximates the object.

  Application Example 7 In the display device according to the application example described above, the projector is configured to be able to modulate light emitted from the light source and emit light as light corresponding to the shape information, and the receiving unit includes the shape It is preferable that the light corresponding to the information can be detected.

  According to this configuration, the projector projects the above-described light, and the variable device deforms the screen based on the result of the reception unit detecting this light. As a result, without providing a wiring member such as a cable between the projector and the screen device, and without providing a dedicated component for emitting light corresponding to the shape information in the projector, the shape information is transmitted to the receiving unit. It can be received. Therefore, it is possible to provide a display device that can display a stereoscopic image that can be recognized more naturally without complicating the structure of the display device.

  Application Example 8 In the display device according to the application example described above, the screen includes a transmissive screen that transmits a part of light projected from the projector, and at least a part of the light transmitted through the screen is received. It is preferable to further include a reflecting mirror.

  According to this configuration, since the display device is configured as described above, the image projected on the screen can be displayed as a virtual image in a space that is symmetrical with respect to the mirror. Further, since the image projected on the screen is stereoscopically displayed corresponding to the non-planar shape of the screen, the virtual image is also observed as a stereoscopic one. As a result, it is possible to display a three-dimensional spatial image that looks natural, impact the observer who observes the virtual image, and provide a display device that can provide a display of an electronic signboard or a new usage pattern.

  Application Example 9 In the display device according to the application example described above, a plurality of the screen devices and the mirrors are provided individually corresponding to each other, and the projector displays a different image for each of the plurality of screens in the plurality of screen devices. The mirror is configured to be capable of projecting, and the mirror is disposed such that planes along the reflecting surface of the mirror intersect each other, and an internal space is formed by the plurality of intersecting planes. It is preferable that they are inclined with respect to each other so that part of the light transmitted through the light is reflected to the side opposite to the internal space.

  According to this configuration, a plurality of screen devices and mirrors are provided corresponding to each other, and the mirrors are arranged so as to reflect a part of the light transmitted through the screen on the side opposite to the internal space described above. . As a result, the observer can observe the virtual image from the side opposite to the internal space via the mirror. Since different images can be projected from the projector on each screen, different images can be observed when the virtual image is observed from different directions. And since the screen apparatus is comprised so that the shape of a screen can be deform | transformed, it becomes possible to deform | transform a screen corresponding to an image. Therefore, the display device can display a three-dimensional spatial image that looks natural from multiple directions.

  Application Example 10 In the display device according to the application example described above, the projector is configured to be capable of transmitting individual shape information related to the shape of the object displayed on the images projected on the plurality of screens, and the screen device. Preferably includes a receiving unit that receives the individual shape information, and the variable device deforms the screen based on a reception result of the receiving unit.

  According to this configuration, for example, by using information about the depth of the object as the shape information, it is possible to deform the plurality of screens by approximating the object. Accordingly, the display device can display a virtual image that looks natural from multiple directions as a virtual image with higher realism.

The schematic diagram for demonstrating the display apparatus of 1st Embodiment. 1 is a block diagram illustrating a schematic configuration of a projector according to a first embodiment. The top view which shows typically the liquid crystal light valve of 1st Embodiment. The block diagram of the screen apparatus of 1st Embodiment. The schematic diagram for demonstrating the variable apparatus of 1st Embodiment. The figure which shows typically the screen apparatus of 2nd Embodiment. The figure which shows typically the shape of a screen when the width adjustment part of 2nd Embodiment is expanded-contracted. The schematic diagram of the screen apparatus at the time of tilting the screen in 2nd Embodiment. The perspective view which shows the display apparatus of 3rd Embodiment typically. The schematic diagram for demonstrating the relationship between four sets of screens and mirrors in a 3rd embodiment, and four virtual images. The figure for demonstrating the variable apparatus drive part in 4th Embodiment. The figure for demonstrating the position of the light-receiving part in a modification. The schematic diagram which shows the display apparatus of a modification.

(First embodiment)
The display device according to the first embodiment will be described below with reference to the drawings.
The display device of this embodiment includes a projector and a screen device, and is configured to display a virtual image as a pseudo stereoscopic image.
[Main configuration of display device]
FIG. 1 is a schematic diagram for explaining a display device 1 according to the present embodiment, where (a) is a perspective view of the display device 1 and (b) is a side view showing a position where a virtual image is displayed. . In addition, in the drawings shown below including FIG. 1, in order to make each component large enough to be recognized on the drawing, the shape of each component is simplified, and the dimensions and ratios of the shapes are assumed to be actual. Are different as appropriate.

As shown in FIG. 1A, the display device 1 includes a projector 2, a Fresnel lens 3, a screen device 40 having a screen 4, a mirror 5, a holding member 6, and a support device (not shown) that supports the projector 2. I have.
The screen 4 is a transmissive screen that transmits part of the light projected from the projector 2, and the display device 1 forms an image projected on the screen 4 by the projector 2 as a virtual image by the mirror 5, and the mirror 5 This virtual image can be observed through the screen. The screen device 40 is configured to deform the screen 4 corresponding to the image projected by the projector 2.

First, the main configuration of the projector 2 will be described.
FIG. 2 is a block diagram illustrating a schematic configuration of the projector 2.
As shown in FIG. 2, the projector 2 includes an image projection unit 20, a control unit 21, a storage unit 22, an image processing unit 23, an OSD processing unit 24, a light valve driving unit 25, a power supply circuit 26, and a light source control unit 27. I have.

The image projection unit 20 includes a light source 201, a liquid crystal light valve 202 as a light modulation device, a projection lens 203, and the like. The light source 201 has a discharge type lamp.
FIG. 3 is a plan view schematically showing the liquid crystal light valve 202. The liquid crystal light valve 202 includes a liquid crystal panel in which a liquid crystal as an electro-optical material is hermetically sealed between a pair of transparent glass substrates, and polarizing plates disposed on both surfaces of the liquid crystal panel. As shown in FIG. 3, the liquid crystal light valve 202 has a rectangular pixel region 20A in which minute pixels (not shown) are formed in a matrix.

In the pixel area 20A, incident light is modulated according to image information to form an image by modulating the incident light according to image information, and incident light is modulated according to shape information relating to the shape of the object displayed in the image. A shape display area 20Ad is provided.
As shown in FIG. 3, the shape display area 20Ad is formed near one of the four sides in the rectangular pixel area 20A. The shape display region 20Ad is provided with a plurality (eight in the present embodiment) of display units 20Ah arranged side by side on a straight line. Each display unit 20Ah is controlled so that the brightness changes according to the shape information.

  The image projection unit 20 modulates the light emitted from the light source 201 by the liquid crystal light valve 202 and emits the modulated light from the projection lens 203. The light source 201 is not limited to the discharge type, and may be configured by various solid light emitting elements such as a laser diode, an LED (Light Emitting Diode), an organic EL (Electro Luminescence) element, and a silicon light emitting element.

The control unit 21 includes a CPU (Central Processing Unit), a RAM (Random Access Memory) used for temporary storage of various data, and the like, and operates according to a control program stored in the storage unit 22 to operate the projector 2. Control over all operations.
The storage unit 22 includes a non-volatile memory such as a mask ROM (Read Only Memory), a flash memory, or an FeRAM (Ferroelctric RAM). The storage unit 22 stores a control program for controlling the operation of the projector 2, various setting data for defining the operation conditions of the projector 2, and the like.

  The image processing unit 23 defines image information of various formats output from an external image output device (not shown), image information representing the gradation of each pixel of the liquid crystal light valve 202, that is, a drive voltage applied to each pixel. For image information. Further, the image processing unit 23 performs an image adjustment process for adjusting brightness, contrast, sharpness, hue, and the like on the converted image information based on an instruction from the control unit 21, and the processed image information Is output to the OSD processing unit 24.

  In addition to the image information output from the external device, the image processing unit 23 uses the shape information, which in this embodiment is information about the depth of the subject to be photographed using two cameras, as the shape information below. Process like this. That is, the image processing unit 23 converts image information corresponding to the image forming area 20Ag, and converts shape information corresponding to the shape display area 20Ad.

  Then, in the shape display area 20Ad, the image processing unit 23 displays the eight display units 20Ah so as to have brightness corresponding to the position of the imaging target. For example, the display unit 20Ah corresponding to the part where the imaging target is the innermost part is black, the display unit 20Ah corresponding to the part closest to the imaging target is white, and the depth between them is darker as it becomes deeper. Display to be bright. That is, light (hereinafter referred to as “information light”) that is modulated by the display unit 20Ah and projected from the projection lens 203 is from the display unit 20Ah that corresponds to the innermost part of the imaging target within the possible range of information light. Is the darkest, and the information light from the display unit 20Ah corresponding to the frontmost part is the brightest light.

The OSD processing unit 24 performs processing to superimpose an OSD (On Screen Display) image such as a menu image or a message image on the input image based on an instruction from the control unit 21. The OSD processing unit 24 includes an OSD memory (not shown), and stores OSD image information representing graphics, fonts, and the like that form an OSD image. When the control unit 21 instructs to superimpose an OSD image, the OSD processing unit 24 reads necessary OSD image information from the OSD memory, and from the image processing unit 23 so that the OSD image is superimposed at a predetermined position of the input image. The OSD image information is synthesized with the input image information. The image information combined with the OSD image information is output to the light valve drive unit 25.
The OSD processing unit 24 outputs the shape information output from the image processing unit 23 and the image information when there is no instruction to superimpose the OSD image from the control unit 21 to the light valve driving unit 25 as they are.

  The light valve driving unit 25 drives the liquid crystal light valve 202 in accordance with input image information and shape information. The liquid crystal light valve 202 modulates incident light according to image information and shape information, and the modulated light is projected from the projection lens 203 onto the screen 4 and a light receiving unit 42 described later.

The power supply circuit 26 is supplied with commercial power such as AC 100V from the outside. The power supply circuit 26 converts a commercial power supply (AC power supply) into a DC power supply having a predetermined voltage and supplies power to each unit of the projector 2.
The light source control unit 27 controls the supply and stop of power to the light source 201 based on an instruction from the control unit 21, and switches on and off the light source 201.

  Although not shown in detail, the Fresnel lens 3 has a plurality of microprisms arranged concentrically, and is arranged below the projector 2 as shown in FIG. The Fresnel lens 3 makes the light emitted from the projector 2 with a predetermined diffusion angle substantially parallel and emits the light to the screen 4 positioned below.

  In addition, you may comprise so that the light inject | emitted from the projector 2 may be substantially parallelized using optical elements other than the Fresnel lens 3. FIG. Further, the optical element such as the Fresnel lens 3 may not be provided, and the projector 2 may project the corrected image so that the image projected on the screen 4 becomes a desired image.

As shown in FIG. 1A, the screen device 40 includes a screen 4 disposed below the Fresnel lens 3, a light receiving unit 42 as a receiving unit, and a variable device 7.
The screen device 40 is configured such that light modulated in the image forming area 20Ag of the liquid crystal light valve 202 is projected onto the screen 4 and information light modulated in the shape display area 20Ad is projected onto the light receiving unit 42. . In the screen device 40, the variable device 7 is driven based on the result received by the light receiving unit 42 to deform the projection surface of the screen 4. That is, the screen device 40 changes the cross-sectional shape of the projection surface of the screen, that is, the non-planar shape of the projection surface in accordance with the shape information. The screen 4 projects an image on a projection surface that deforms in accordance with the shape information. The screen device 40 will be described in detail later.

The mirror 5 is formed of a semi-transmissive type that reflects part of the light corresponding to the image transmitted through the screen 4 and transmits the other part.
As shown in FIG. 1A, the mirror 5 is disposed below the screen 4 so as to be inclined with respect to the screen 4 so that the observation side spreads. The mirror 5 reflects a part of the light corresponding to the image transmitted through the screen 4 and displays the image projected on the screen 4 as a virtual image.
Specifically, as shown in FIG. 1B, the virtual image V is displayed in a space symmetrical to the image R projected on the screen 4 with respect to the mirror 5, and the virtual image V is displayed with respect to the mirror 5. The virtual image V is observed so that this virtual image V exists in the back of the mirror 5 as viewed from the observer located on the opposite side.

  Further, the virtual image V changes its appearance in the depth direction according to the shape of the projection surface of the screen 4. Specifically, in the screen 4 whose projection surface protrudes to the mirror 5 side, the image projected on the part close to the mirror 5 is viewed from the observer than the image projected on the part far away, Displayed in front. That is, the virtual image V is displayed as a pseudo three-dimensional space image according to the cross-sectional shape of the projection surface of the screen 4.

The holding member 6 holds the screen device 40 and the mirror 5 as shown in FIG.
As a support device (not shown) for supporting the projector 2, a device using a ceiling suspension device when the projector 2 is installed on a ceiling or the like can be used. Further, the support device may be configured to be attached to the holding member 6.

[Configuration of screen device]
Here, the screen device 40 will be described in detail. FIG. 4 is a block diagram of the screen device 40.
As shown in FIG. 4, the screen device 40 includes a screen support member 41 and a variable device driving unit 43 in addition to the screen 4, the light receiving unit 42, and the variable device 7.

The screen 4 is made of a stretchable material and has a rectangular shape in plan view.
The screen support member 41 has a rectangular opening, and supports a pair of opposite ends of the screen 4 at the edges of the opening (left and right ends 4a and 4c of the screen 4 in FIG. 1). It is formed as follows. The screen 4 is supported by an actuator 71 (see FIG. 5A), which will be described later, with a pair of opposed end portions 4d and 4e different from the end portions 4a and 4c.
Further, the screen support member 41 is formed with an opening through which the light receiving portion 42 is exposed, as shown in FIG.

  The light receiving unit 42 includes a light receiving element and detects information light projected from the projector 2. Specifically, the light receiving unit 42 includes eight detection units, each of which is modulated by the eight display units 20Ah and linearly detects eight types of information light projected from the projection lens 203 individually. It is arranged on the top. Then, the light receiving unit 42 outputs an electrical signal corresponding to the detection result to the variable device driving unit 43. That is, the projector 2 transmits shape information by projecting information light, and the light receiving unit 42 as a receiving unit outputs an electrical signal corresponding to the result of receiving the shape information to the variable device driving unit 43.

  The variable device driving unit 43 includes a driver that drives the variable device 7, amplifies the signal output from the light receiving unit 42, and outputs the amplified signal to the variable device 7.

As shown in FIG. 4, a pair of variable devices 7 are provided, and the pair of variable devices 7 are disposed at the front and rear ends 4 d and 4 e of the screen 4 as shown in FIG. 1.
FIG. 5 is a schematic diagram for explaining the variable device 7. Specifically, FIG. 5A is a diagram showing the variable device 7 viewed from the ends 4d and 4e of the screen 4, and FIG. 5B is a variable device 7 viewed from the ends 4a and 4c of the screen 4. FIG. 4C is a graph showing the output characteristic of the variable device driving unit 43 with respect to the input of the light receiving unit 42, and FIG. 4D is a graph showing the input / output characteristics of the variable device 7.

  As shown in FIG. 5A, the variable device 7 includes a plurality of actuators 71 as a moving unit and a support member (not shown) that supports the actuators 71. The plurality of actuators 71 are arranged along the end portions 4d and 4e, corresponding to the eight detection portions of the light receiving unit 42, respectively, at eight end portions 4d and 4e.

The actuator 71 is configured such that its tip expands and contracts in response to an input by a method such as a linear motor or a stepping motor. The ends 4 d and 4 e of the screen 4 are attached to the tip of the actuator 71.
Each actuator 71 expands and contracts based on a signal from the variable device driving unit 43, and deforms the non-planar shape of the projection surface by moving both ends of the screen 4 in a direction intersecting the projection surface of the screen 4.

  Further, the actuator 71 operates so as to have the same length on both sides (the end 4d side and the end 4e side) by the output from the variable device driving unit 43. That is, as shown in FIG. 1, the variable device 7 has a screen 4 that has no unevenness in the depth direction as viewed from an observer positioned on the side facing the mirror 5 (the side that observes the virtual image), and is In FIG. 2, the shape of the unevenness can be changed in the vertical direction. In other words, the variable device 7 is configured such that the cross-sectional shape of the screen 4 in the plane along the up-down and front-rear directions is substantially straight, and the cross-sectional shape in the plane along the up-down and left-right directions can be changed as viewed from the observer.

As shown in FIG. 5C, the output of the variable device driving unit 43 increases as the input intensity (intensity of incident light) to the light receiving unit 42 increases. That is, the output of the variable device drive unit 43 increases as the information light projected from the projector 2 becomes brighter.
The protrusion amount of the actuator 71 increases as the input from the variable device driving unit 43 to the variable device 7 increases, as shown in FIG.
Thus, the projection amount of the actuator 71 changes according to the amount of light incident on the light receiving unit 42, and the screen 4 on which the end portions 4 d and 4 e are supported by the actuator 71 depends on the extent to which the plurality of actuators 71 project. The non-planar shape is variable.

  Although the screen 4 is formed of a stretchable material, it is difficult to bend between the pair of actuators 71 so as not to be deformed between the pair of actuators 71 disposed at the end portions 4d and 4e, respectively. It is desirable to use a translucent material. For example, it is possible to use a material made of acrylic resin or the like and processed in a smoke-like manner (for example, a material in which fine irregularities are formed on the surface of the light transmitting material).

[Operation of display device]
Here, the operation of the display device 1 will be described by exemplifying a case where the projector 2 projects information input from an external imaging device (not shown) capable of imaging the shape information of the object. Note that the projector 2 can also acquire an image imitating an object by CG (Computer Graphics) created by an external device and shape information of the object, and project based on this information.

  As described above, the projector 2 modulates the image information of the object output from the imaging device in the image forming area 20Ag of the liquid crystal light valve 202, and modulates the shape information regarding the depth of the imaging object in the shape display area 20Ad. Then, the projector 2 projects the light modulated in the image forming area 20Ag onto the screen 4, and projects the information light modulated in the shape display area 20Ad onto the light receiving unit.

The image R projected on the screen 4 is displayed so as to be observable as a virtual image V via the mirror 5 as shown in FIG.
On the other hand, the information light projected on the light receiving unit 42 is detected by the light receiving unit 42.
For example, when the object in the captured image has a shape similar to a cylindrical shape, the shape display region 20Ad is displayed brighter on the display unit 20Ah corresponding to the center than on the display unit 20Ah corresponding to both sides of the object. Therefore, the intensity of the information light incident on the light receiving unit 42 is greater than the intensity incident on the detection unit corresponding to both ends than the intensity incident on the detection unit corresponding to both ends.

  The plurality of actuators 71 are driven by the variable device driving unit 43 in accordance with the detection result of the light receiving unit 42, and the length of expansion and contraction changes. That is, the eight actuators 71 arranged along the end portions 4d and 4e are approximately the actuator 71 located in the center from the length of the actuator 71 in the vicinity of the end portions 4a and 4c (see FIG. 5A). Length increases.

  The screen 4 is deformed so that the end portions 4d and 4e on both sides are pulled by the actuator 71 and the center portion in the left-right direction shown in FIG. 1 is located closer to the mirror 5 than both sides. The image projected on the screen 4 is also displayed with the central portion protruding from the both sides to the mirror 5 side. That is, the screen 4 is deformed into a shape approximating a cylindrical object.

Since the virtual image is symmetric with the image projected on the screen 4 with respect to the mirror 5, the observed virtual image is observed such that the central portion is positioned in front of both the left and right sides as viewed from the observer. That is, the virtual image is observed as a three-dimensional image that approximates a cylindrical object.
As described above, the screen device 40 receives the light having the brightness corresponding to the depth of the object projected from the projector 2 by the light receiving unit 42, and the variable device 7 causes the screen 4 to change based on the detection result of the light receiving unit 42. Deform. The display device 1 can display a three-dimensional virtual image that approximates the object by deforming the screen 4 into a shape that approximates the object.

  In addition, when the object has a depth in the central axis direction in the cylindrical shape (in the direction corresponding to the screen 4, the front-rear direction as viewed from the observer in FIG. 1A) unlike the cylindrical shape, The maximum value and the average value of the shape information regarding the depth in this direction can be calculated, and the actuator 71 can be moved in accordance with the calculated value.

The information light projected by the projector 2 is projected in such a manner that the hue and saturation are changed in addition to the light intensity, that is, the brightness is changed, and the change in the hue and saturation can be detected as the light receiving unit. You may comprise as follows.
Further, the display unit 20Ah, the detection unit of the light receiving unit 42, and the actuator 71 are not limited to eight and may be configured by other numbers.

As described above, according to the screen device 40 and the display device 1 of the present embodiment, the following effects can be obtained.
(1) Since the screen device 40 includes the variable device 7, the projection surface of the screen 4 can be non-planar with various shapes depending on the amount of movement of the end portions 4 d and 4 e as well as the flat surface. It becomes. Therefore, by deforming the screen 4 so as to correspond to the image projected on the screen 4, it is possible to give the image a sense of depth and display it as a pseudo three-dimensional image.

(2) Since the variable device 7 is configured to move the end portion of the screen 4, the projection surface can be deformed without arranging members on the front and back of the projection surface. Thus, the variable device 7 can be used not only for the reflection type but also for the transmission type screen 4.
Therefore, it is possible to provide the screen device 40 that can change the shape of the projection surface with a simple configuration in which the end of the screen 4 is moved without being limited to the transmission type and the reflection type, and can display a variety of displays. .

  (3) The variable device 7 deforms the screen 4 so that the virtual image is observed with a depth in the left-right direction when viewed from the observer. Humans recognize stereoscopic images using the parallax of the left and right eyes, so virtual images can be recognized as stereoscopic spatial images without having to make the projection surface complex in a vertical direction with a depth in the vertical direction. Can be made. Therefore, it is possible to provide the screen device 40 that can effectively observe a virtual image as a three-dimensional image while easily forming a projection surface on a non-planar surface.

  (4) A plurality of actuators 71 are disposed at both ends 4d and 4e, and change the non-planar shape of the projection surface according to the amount of movement. As a result, the screen can be deformed at fine intervals, and the projection surface can be made a smoother non-planar surface. Therefore, the screen device 40 can display the image projected on the projection surface as a three-dimensional image that looks more natural.

  (5) The display device 1 displays the image projected on the screen 4 as a virtual image in a space symmetrical to the mirror 5. Moreover, since the image projected on the screen 4 is displayed in three dimensions corresponding to the non-planar shape of the screen 4, the virtual image is also observed as a three-dimensional image. As a result, it is possible to display a natural three-dimensional spatial image, impact the observer who observes the virtual image, and achieve a display device 1 that can provide a display of an electronic signboard or a new usage pattern.

  (6) The projector 2 is configured to be able to transmit shape information, and the variable device 7 deforms the screen 4 based on a result received by the light receiving unit 42 as a receiving unit. Thus, as described above, by using the information related to the depth of the object as the shape information, it is possible to deform the screen 4 by approximating the object. Therefore, the display device 1 can display a virtual image that gives a more natural three-dimensional effect that approximates the object.

  (7) The projector 2 is configured to project information light, and the variable device 7 deforms the screen 4 based on a result of the light receiving unit 42 detecting this information light. This makes it possible to use light emitted from the light source 201 without providing a wiring member such as a cable between the projector 2 and the screen device 40, and without providing a dedicated member for emitting information light in the projector. The shape information can be received by the receiving unit. Therefore, it is possible to provide the display device 1 capable of displaying a stereoscopic image that can be recognized more naturally without complicating the structure of the projector 2 and the screen device 40.

(Second Embodiment)
Hereinafter, the screen device 240 according to the second embodiment will be described with reference to the drawings. In the following description, the same structure and the same members as those of the screen device 40 of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted or simplified.

6A and 6B are diagrams schematically illustrating the screen device 240 according to the present embodiment, in which FIG. 6A is a perspective view and FIG. 6B is a side view.
As shown in FIG. 6, the screen device 240 includes a screen 4, a screen support member 41, and a variable device 8.

The variable device 8 is configured to support a pair of opposite ends 4a and 4c of the screen 4 and to change the distance between the two. The non-planar shape of the screen 4 is changed by changing the distance between the end portions 4a and 4c.
As shown in FIG. 6B, the variable device 8 is bridged between the inclination adjusting portions 8 </ b> A and 8 </ b> C disposed on the ends 4 a and 4 c of the screen 4 and the ends 4 a and 4 c of the screen 4. A width adjusting unit 81 is provided.

  The inclination adjustment parts 8A and 8C are respectively provided with a support part 82, a screw 83, and an urging part 84. The inclination adjustment part 8A is provided on both sides of the end part 4a, and the inclination adjustment part 8C is provided on both sides of the end part 4c. Yes. In other words, the inclination adjusting units 8A and 8C are provided at the four corners of the screen 4 so that the inclination of the screen 4 with respect to the screen support member 41 can be adjusted. The support part 82 in the inclination adjustment part 8A is referred to as a first support part 821, and the support part 82 in the inclination adjustment part 8C is referred to as a second support part 822.

The support portion 82 is provided with a screw hole (not shown) into which the screw 83 is screwed. The urging portion 84 is configured by a coil spring or the like, and is disposed between the screw 83 and the screen support member 41.
In the screen 4, a screw 83 is inserted into a hole (not shown) provided at the end and a long hole (not shown) provided in the screen support member 41, and is urged by the urging unit 84 to be supported by the support unit 82. It is fixed to the screw. That is, the support portion 82 supports the end portions 4 a and 4 c of the screen 4 via the screw 83 and the biasing portion 84.

As shown in FIG. 6A, the width adjusting unit 81 is disposed in the vicinity of both end portions 4 a and 4 c of the screen 4, and has a rotating shaft 811 and a fixed shaft 812.
The rotating shaft 811 is formed in a pipe shape, and a thread groove is formed inside.
The fixed shaft 812 has a screw formed on the outer periphery, and is screwed into the screw groove of the rotating shaft 811. The width adjusting unit 81 expands and contracts when the rotating shaft 811 is rotated.

The end 4a of the screen 4 is supported by one end of the rotating shaft 811 and a member such as a retaining ring (not shown) so that the rotating shaft 811 can rotate, and the end 4c of the screen 4 is fixed by a fixed shaft 812. Attached to one end.
When the rotation shaft 811 is rotated, the screen 4 expands and contracts according to the rotation direction, and the distance between the first support portion 821 and the second support portion 822 is changed. And the non-planar shape of the projection surface of the screen 4 is variable. Note that the inclination adjusting portions 8A and 8C slide and move the screen support member 41 together with the support portion 82 when the width adjusting portion 81 is expanded and contracted.

FIG. 7 is a diagram schematically showing the shape of the screen 4 when the width adjusting unit 81 is expanded and contracted.
As shown in FIG. 7, when the width adjusting portion 81 is contracted, the screen 4X has a larger amount of protrusion from the screen support member 41 and a sectional shape that changes to reduce the curvature (screen 4Y in FIG. 7). . Thus, the image projected on the screen 4Y is an image having a greater depth than the image projected on the screen 4X. Further, if the screen device 240 is mounted on the display device 1 of the first embodiment, even in the displayed virtual image, the screen 4Y state has more depth than the screen 4X state, that is, the stereoscopic effect is more emphasized. It becomes a virtual image.

  As a configuration for rotating the rotation shaft 811, an operation unit that can be easily held may be provided on the rotation shaft 811, and the rotation shaft 811 may be rotated manually. Further, an electric mechanism that electrically rotates the rotating shaft 811 and the light receiving unit 42 described in the first embodiment may be provided so that the rotating shaft 811 rotates according to the information light projected from the projector 2. Good. Alternatively, the two width adjusting portions 81 may be expanded and contracted to have different lengths, and the screen 4 may be deformed so that the sectional shape on the end 4d side and the sectional shape on the end 4e side are different.

Here, the operation of the inclination adjusting units 8A and 8C will be described.
FIG. 8 is a schematic diagram of the screen device 240 when the screen 4 is tilted.
The inclination adjusting units 8A and 8C are provided at the four corners of the screen 4 as described above.
When the screw 83 of the inclination adjusting unit 8A is loosened and the screw 83 of the inclination adjusting unit 8C is tightened, as shown in FIG. 8, the screen 4 moves downward on the end 4a side and downward on the end 4c side. 4, the inclination with respect to the screen support member 41 is changed.
That is, the screen device 240 is configured such that each of the pair of opposed end portions 4a and 4c of the screen 4 can move in a direction intersecting with each other, and the inclination is adjusted by rotating the screw 83. Is done.

  Further, since the inclination adjusting portions 8A and 8C are provided at the four corners of the screen 4, the inclination with respect to the screen support member 41 can be adjusted in the depth direction in addition to the left and right directions when viewed from the end 4d side.

As described above, according to the screen device 240 of the present embodiment, the following effects can be obtained.
(1) The variable device 8 is configured such that the distance between the first support portion 821 that supports the opposite end portions 4a and 4c of the screen 4 and the second support portion 822 can be changed, so that the configuration is further simplified. Thus, the screen 4 can be deformed and adjusted so that the projection surface has a desired non-planar shape.

  (2) The opposing ends 4a and 4c of the screen 4 are configured to be movable in a direction intersecting the opposing direction by the inclination adjusting units 8A and 8C. As a result, the screen 4 whose projection surface is deformed can be inclined with respect to the screen support member 41. Therefore, since the appearance of the image projected on the projection surface of the screen can be changed, it is possible to provide the screen device 240 capable of displaying with more diversity.

(Third embodiment)
Hereinafter, the display device 13 according to the third embodiment will be described with reference to the drawings. In the following description, the same structure and the same members as those of the display device 1 of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted or simplified.
FIG. 9 is a perspective view schematically showing the display device 13 of the present embodiment. FIG. 9 is a diagram in which the Fresnel lens disposed between the projector 2 and the screen 4 is omitted.

  As shown in FIG. 9, the display device 13 of the present embodiment includes four sets of the screen device 40 and the mirror 5 described in the first embodiment. The screen support member 141 of the present embodiment is configured as a combination of four screen support members 41 of the first embodiment, and as shown in FIG. 9, four corners are formed by columnar holding members 16 extending in the vertical direction. Is supported.

  As shown in FIG. 9, the four mirrors 5 are each formed in a triangular shape in plan view and combined in a quadrangular pyramid shape. Further, the mirror 5 of the present embodiment is disposed so that the angle formed by the mirrors 5 at the opposing positions is approximately 90 °. As described above, the mirrors 5 are arranged so that the planes along the reflecting surfaces intersect each other, and the internal space 10 is provided inside the combined mirrors 5. The angle formed by the mirrors 5 at the opposing positions may be an angle other than 90 °.

  Each screen device 40 and each mirror 5 are arranged in the following positional relationship. That is, each screen 4 and each mirror 5 are disposed so as to be inclined with respect to each other so that a part of the light transmitted through the screen 4 is reflected by the mirror 5 to the side opposite to the internal space 10. And each screen 4 is arrange | positioned so that it may be located in the front and back, right and left in the display apparatus 13 so that 90 degree direction may differ with respect to the adjacent screen 4. FIG. The screens 4 positioned on the front, rear, left, and right are the screens 4F, 4B, 4L, and 4R, and the side on which the screen 4F is disposed is the front of the display device 13. Further, the mirrors 5 corresponding to the screens 4F, 4B, 4L, and 4R are referred to as mirrors 5F, 5B, 5L, and 5R, respectively. That is, the mirror 5F is positioned on the front side of the display device 13.

The projector 2 is configured to project different images individually for the screens 4F, 4B, 4L, and 4R via a Fresnel lens (not shown).
The display device 13 forms an image projected on the screens 4F, 4B, 4L, and 4R by the projector 2 as a virtual image in the internal space 10 of the display device 13 via the mirrors 5F, 5B, 5L, and 5R. And the display apparatus 13 is comprised so that the virtual image corresponding to the image projected on the screen 4F, 4B, 4L, 4R can be observed from the front, back, left, and right through the mirrors 5F, 5B, 5L, 5R. . Note that the Fresnel lens may be formed by one sheet having a size that covers the plurality of screens 4F, 4B, 4L, 4R, and each screen 4F, 4B, A plurality of 4Ls and 4Rs may be provided so as to correspond individually.

  Although not shown, the range including the projector 2 above the screen support member 141 is preferably surrounded by an opaque member so that light from the outside does not enter the screen 4. Furthermore, it is preferable to surround the side of the screen 4 that protrudes toward the mirror 5 with an opaque member so that the screen 4 cannot be seen from the side of the display device 13 (front and rear, left and right directions).

  The projector 2 acquires image information and shape information obtained by imaging an object to be captured by an external photographing apparatus (not shown) from four directions, front, rear, left, and right, and projects based on this information. The projector 2 can also acquire images in four directions imitating a CG object created by an external device and shape information, and project based on this information. Although not described in detail, the pixel area 20A of the liquid crystal light valve 202 is provided with an image forming area and a shape display area corresponding to image information and shape information in four directions.

The display device 13 displays the image projected from the projector 2 as a virtual image in the internal space 10 via the screens 4F, 4B, 4L, 4R and the mirrors 5F, 5B, 5L, 5R.
FIG. 10 is a schematic diagram for explaining the relationship between the four sets of screens 4F, 4B, 4L, and 4R and the mirrors 5F, 5B, 5L, and 5R and the four virtual images V. FIG. The perspective view of the object 11 photographed by the photographing device, (b) is a plan view showing an image R projected on the screens 4F, 4B, 4L, 4R, and (c) is a diagram showing a virtual image V viewed from the front side. It is.

  As shown in FIG. 10A, the object 11 has a shape in which two cylindrical shapes having different outer diameters and coaxial centers are smoothly connected between the two, and the outer diameter is larger. On the outer periphery of the cylindrical shape, different patterns are provided when viewed from front, rear, left and right.

  Then, images Rf, Rb, Rl, and Rr that are front, back, left, and right of the object 11 are projected onto the screens 4F, 4B, 4L, and 4R. Information light based on shape information corresponding to each image information is also projected onto the light receiving portions 42 corresponding to the screens 4F, 4B, 4L, and 4R. In addition, each light-receiving part 42 is provided in the area | region enclosed by the four screens 4, as shown in FIG.10 (b).

  Here, since the screens 4F, 4B, 4L, and 4R and the four light receiving units 42 are projected from one projector 2, the projector 2 has screens 4F, 4B, and 4B, as shown in FIG. Projection can be performed on an area (projectable area Pa) that includes all of the 4L and 4R projection surfaces and the area where the four light receiving portions 42 are exposed. The projector 2 is controlled so that light is hardly projected onto areas other than the projection surfaces of the screens 4F, 4B, 4L, and 4R and the areas where the four light receiving units 42 are exposed in the projectable area Pa.

  In each screen device 40, the variable device 7 is driven based on the information light received by the light receiving unit 42, and deforms the screens 4F, 4B, 4L, 4R. Since the object (object 11) is cylindrical, the depths seen from the front, rear, left and right are the same, so the non-planar shapes of the screens 4F, 4B, 4L, 4R are the same shape with the center protruding from both ends toward the mirror 5 side. In addition, since each screen apparatus 40 can change the shape of the screen 4 according to the detection result of the light-receiving part 42, when the shape which the object saw from four directions differs, screen 4F, 4B, 4L and 4R each have a non-planar shape corresponding to the shape of the object.

  In the internal space 10, four virtual images V are generated corresponding to the mirrors 5F, 5B, 5L, 5R. The four virtual images V can be observed through the mirrors 5F, 5B, 5L, and 5R. For example, when the observer is located in front of the display device 13, as shown in FIG. 10C, the virtual image Vf corresponding to the image Rf can be observed through the mirror 5F. Although illustration is omitted, when the observer moves from the front and is positioned on the left and right sides or the rear side of the display device 13, similarly, virtual images corresponding to the images Rl, Rr, and Rb via the mirrors 5L, 5R, and 5B. V can be observed. That is, the observer can observe the virtual image V that changes in accordance with the changed position by changing the observation position on the outer periphery of the mirror 5 combined in a quadrangular pyramid shape.

Then, the virtual image V is recognized so that the central portion is located in front of both sides when viewed from the observer, and is located in the back toward the left and right ends. Further, since the cross-sectional shape of the projection surface is formed in a shape imitating the object (object 11), the virtual image V is continuously changed in the depth direction with distortion suppressed, and is similar to the object 11. Recognition as a typical stereoscopic image. As described above, the virtual image V is observed from the front, rear, left, and right of the display device 13 and is recognized as a stereoscopic image having a depth.
The display device 13 of the present embodiment is configured by four sets of screen 4 devices and mirrors 5. However, the display device 13 is not limited to four sets, and may be configured by other sets as long as it is two sets or more. .

As described above, according to the display device 13 of the present embodiment, the following effects can be obtained.
The display device 13 includes a plurality of screen devices 40 and mirrors 5 that correspond to each other, and is configured so that different virtual images can be observed in the internal space 10 when viewed from front, back, left, and right. And since the screen apparatus 40 is comprised so that a screen can be deform | transformed according to an image, it becomes possible for the display apparatus 13 to display the three-dimensional space image which looks natural from multiple directions. Therefore, it is possible to display a virtual image that looks natural from multiple directions as a virtual image with a higher sense of reality, which has a further impact on an observer who observes the virtual image, and can further expand the electronic signboard and new usage forms. Can be provided.

(Fourth embodiment)
The screen device according to the fourth embodiment will be described below with reference to the drawings. In the following description, the same structure and the same members as those of the screen device 40 of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted or simplified.
The screen device of this embodiment includes a variable device driving unit 430 that is different from the variable device driving unit 43 in the screen device 40 of the first embodiment.

The variable device driving unit 430 is configured to process the signal output from the light receiving unit 42 as a digital signal and drive the variable device 7.
FIG. 11 is a diagram for explaining the variable device driving unit 430. Specifically, FIG. 11A is a block diagram of the light receiving unit 42, the variable device driving unit 430, and the actuator 71, and FIG. 11B is a format of data received by the light receiving unit 42 and processed by the variable device driving unit 430. (C) is a figure which shows the example of the arrangement | sequence of the light-receiving data.

  As shown in FIG. 11A, the variable device driving unit 430 includes a decoder 431 and a driver 432. Then, the variable device driving unit 430 compares the analog signal output from the light receiving unit 42 with a predetermined level to obtain a high level or low level signal, and outputs the signal to each of the actuators 71 as an analog driving signal.

  As shown in FIG. 11B, the signal received by the light receiving unit 42 is composed of 8 bits, and 8 actuators 71 (shown in FIG. 11) in which the upper 3 bits are arranged at the end portions 4d and 4e of the screen 4, respectively. 5 (a)) corresponding to the numbers (A1 to A8), and the lower 5 bits are signals for moving the actuator 71.

  Since the signal for moving the actuator 71 is composed of 5 bits, the protruding amount of the actuator 71 can be varied in 32 steps. That is, the cross-sectional shape of the screen 4 is variably configured within an 8 × 32 matrix so that the material can be expanded and contracted.

Data sent to the actuator 71 is converted into a signal corresponding to the eight actuators 71 by the decoder 431, stored in a memory built in the driver 432, and updated when new data is sent.
Since information corresponding to one actuator 71 can be sent with one data, the signals output to the entire eight actuators 71 arranged at the end portions 4d and 4e are as shown in FIG. 11 (c). , 8 data can be obtained by sequentially receiving light.

  The data sent to the actuator 71 is linked to the image projected on the screen 4, and a series of data can be sent in 8 frames by sending 1 data per frame. When displaying a moving image, for example, even if the operation speed is 60 fps (frame per second), 60/8 = 7.5 times of data can be sent per second, which gives the viewer an uncomfortable feeling. Without changing the screen, the screen can be deformed.

  In addition, when the signal received by the light receiving unit 42 is received a plurality of times and coincides with each other, it is possible to prevent the malfunction due to the influence of external light by operating the actuator 71. Furthermore, it is possible to prevent malfunctions by providing a known error detection method such as increasing the number of detection units in the light receiving unit 42 and adding parity bits.

As described above, according to the screen device of the present embodiment, the following effects can be obtained.
Since the variable device driving unit 430 of the present embodiment outputs the signal output from the light receiving unit 42 as a digital signal, it is easy to prevent the influence of noise or the like and to prevent the above-described malfunction, and corresponds to the shape information. Thus, the screen 4 can be reliably deformed.

(Modification)
In addition, you may change the said embodiment as follows.
In the variable device 7 of the first embodiment, the pair of actuators 71 arranged at the ends 4d and 4e may be driven separately.

  The screen device 40 in the embodiment is configured to be deformed so that the screen 4 protrudes toward the mirror 5, but may be configured to deform the screen 4 so that the mirror side has a concave shape.

  In the screen device 40 of the first embodiment, in order to reduce the load on the screen 4, the end portions 4 a and 4 c of the screen 4 may slide when the screen 4 is deformed more than a predetermined amount.

  The screen device 240 according to the second embodiment is configured to be movable so that the distances between both ends 4a and 4c of the screen 4 can be changed, but either one of the both ends 4a and 4c is moved. You may comprise.

  The screen device 240 in the second embodiment is configured to be movable in a direction in which each of the pair of opposed end portions 4a and 4c of the screen 4 intersects the direction of facing each other. Either one may be configured to be movable in this intersecting direction.

  Although the mirrors 5 in the display devices 1 and 13 are formed as a transflective type, the mirrors may be configured as a total reflection type that reflects substantially all of the light corresponding to the image transmitted through the screen 4. The mirror may be configured by a reflection type with a reduced reflectance so that the peripheral shape of 4 is hardly visible. Reflective mirrors with reduced reflectivity include a type that reflects part of incident light and absorbs other light, a type that reflects part of incident light and transmits other light, and incident light. It is possible to use a type that reflects part of the light and absorbs and transmits other light. Even when this reflection type mirror is configured, the display devices 1 and 13 can allow the observer facing the mirror to recognize the virtual image displayed on the opposite side of the mirror.

As long as it is provided in the projectable area Pa, the light receiving section 42 in the third embodiment is not limited to the area surrounded by the plurality of screens 4 as shown in FIG.
FIG. 12 is a diagram for explaining the position of the light receiving unit 42 in the modified example. For example, as shown in FIG. 12, the position of the light receiving unit 42 can be arranged between adjacent screens 4, and a plurality of detection units in the light receiving unit 42 need to be arranged on a straight line. Instead, they may be arranged in a plurality of stages.

  In the above-described embodiment, the light source 201 is configured to transmit the shape information of the target object. However, the projector 2 is configured to include an LED, a high-frequency wireless device, and the like, and the wireless signal generated by these projectors. You may comprise so that the variable apparatus 7 may deform | transform the screen 4 based on the result which the light-receiving part received (shape information).

  The screen device 40 according to the embodiment is configured such that the variable device 7 is driven according to the detection result of the light receiving unit 42. The variable device 7 may be driven.

The projector 2 of the embodiment and the screen device 40 or the screen device 240 may constitute a display device.
Since this display device can efficiently deform the screen in correspondence with the image projected on the screen, it is possible to display the projected image to be recognized by the observer as a pseudo three-dimensional image.

In the screen devices 40 and 240 in the above embodiment, the screen 4 is configured as a light transmission type, but can also be applied to a reflection type screen.
In addition, a display device that displays a three-dimensional virtual image using a screen device having a reflective screen is also possible.
FIGS. 13A and 13B are schematic views showing a display device 15 of a modified example capable of displaying a virtual image using a reflective screen 34, where FIG. 13A is a perspective view and FIG. 13B is a side view.
As shown in FIG. 13, the display device 15 includes an optical element 90 in addition to the projector 2 and a screen device 340 having a reflective screen 34.
Although detailed illustration is omitted, the optical element 90 is formed in a plate shape by arranging a plurality of micro units having two reflecting surfaces orthogonal to each other. The optical element 90 is configured such that light corresponding to the image 34R projected from the projector 2 onto the screen 34 enters from one side and forms a virtual image 90V in the other side space.
Although illustration is omitted, the screen 34 is configured to be deformable by the variable device provided in the screen device 340 in the same manner as described above, and the display device 15 is a three-dimensional virtual image corresponding to the image projected on the screen 34. Is displayed. The virtual image can be observed from the side opposite to the side where the projector 2 is disposed with respect to the screen 34.
In addition, it is possible to display a three-dimensional virtual image by adopting a transmissive screen in the display device including the optical element 90. In the case of this configuration, the virtual image can be observed with respect to the screen 34 from the same side as the side where the projector 2 is disposed.

  You may comprise so that the display apparatuses 1 and 13 in the said embodiment may be reversed vertically. That is, the projector 2 may be arranged under the floor or the like so that a virtual image observer is less likely to be aware of the presence of the projector 2.

  A reflection mirror is arranged between the projector 2 and the screen 4 in the display device 13 of the third embodiment, and the light emitted from the projector 2 is bent by the reflection mirror and then incident on the screen 4. May be. Thus, the degree of freedom in installing the projector 2 can be improved and the display device 13 can be downsized in the vertical direction.

Although the display device 13 according to the third embodiment is configured by one projector 2, a plurality of projectors 2 corresponding to each screen device 40 may be provided.
According to this configuration, displayable pixels included in the projector 2 can be effectively used as compared with a configuration in which an image is projected onto each screen 4 by one projector 2. Therefore, since the resolution of the image projected on each screen 4 can be increased and the brightness can be improved, a display device that can display a clearer virtual image can be provided.
Further, as compared with a configuration in which an image is projected onto each screen 4 by one projector 2, a small projector 2 can be adopted and the projector 2 can be arranged close to the screen 4, so that the display device can be downsized. Can be planned.

  The projector 2 according to the embodiment includes the liquid crystal light valve 202 as a light modulation device, but a device using a micromirror may be used as the light modulation device.

  DESCRIPTION OF SYMBOLS 1,13,15 ... Display apparatus, 2 ... Projector, 4, 4B, 4F, 4L, 4R, 4X, 4Y, 34 ... Screen, 4a, 4c, 4d, 4e ... End part, 5, 5B, 5F, 5L, 5R: mirror, 7, 8: variable device, 8A, 8C: tilt adjustment unit, 10: internal space, 20A: pixel area, 40, 240, 340 ... screen device, 42 ... light receiving unit, 43, 430 ... variable device drive Reference numeral 71: Actuator, 81: Width adjusting unit, 821: First support unit, 822: Second support unit, 201: Light source, 202: Liquid crystal light valve

Claims (10)

A screen on which an image is projected;
A variable device that deforms a projection surface of the screen by moving an end of the screen;
A screen device comprising: The screen device according to claim 1,
The variable device is:
A plurality of moving parts that support the end of the screen and are arranged along the end;
The plurality of moving units are configured to be capable of changing an amount of movement in a direction intersecting a projection surface of the screen. The screen device according to claim 1 or 2, wherein
The variable device is:
A first support portion and a second support portion that respectively support a pair of opposed end portions of the screen;
The screen device according to claim 1, wherein the first support portion and the second support portion are configured such that a distance between them can be changed. The screen device according to claim 3,
At least one of the pair of opposed end portions is configured to be movable in a direction intersecting with a direction in which the pair of end portions are opposed to each other. The screen device according to any one of claims 1 to 4,
A projector that has a light source, modulates light emitted from the light source according to image information, and projects an image on the screen;
A display device comprising: The display device according to claim 5,
The projector is configured to be able to transmit shape information related to the shape of an object displayed in the image,
The screen device includes a receiving unit that receives the shape information,
The display device according to claim 1, wherein the variable device deforms the screen based on a reception result of the receiving unit. The display device according to claim 6,
The projector is configured to modulate light emitted from the light source and emit light as light corresponding to the shape information,
The display device, wherein the receiving unit is configured to be able to detect light corresponding to the shape information. A display device according to any one of claims 5 to 7,
The screen is composed of a transmissive screen that transmits part of the light projected from the projector,
A display device, further comprising a mirror that reflects at least part of the light transmitted through the screen. The display device according to claim 8,
A plurality of the screen devices and the mirrors are individually provided correspondingly,
The projector is configured to be able to project different images for the plurality of screens individually in the plurality of screen devices,
The mirrors are arranged such that planes along the reflecting surfaces of the mirrors intersect with each other and form an internal space with the plurality of intersecting planes,
The display device, wherein the screen and the mirror are inclined with respect to each other so as to reflect a part of light transmitted through the screen to a side opposite to the internal space. The display device according to claim 9,
The projector is configured to be capable of transmitting individual shape information related to the shape of an object displayed in an image projected on the plurality of screens,
The screen device includes a receiving unit that receives the individual shape information,
The display device according to claim 1, wherein the variable device deforms the screen based on a reception result of the receiving unit.

Images