JP3389686B2 - Image display device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display device,
More specifically, the present invention relates to an image display device that projects an image on a screen and displays the image three-dimensionally.

[0002]

2. Description of the Related Art As a stereoscopic display method of a conventional image display device, for example, a projection type liquid crystal display device composed of a light source and a liquid crystal panel and a personal computer system for storing and operating a projected stereoscopic image as data are used. And a projection type liquid crystal display device projects and displays a stereoscopic image based on image data externally input from a personal computer system on a screen.

Such a three-dimensional display method of an image display device is sometimes used, for example, for explaining materials and product presentations at conferences and product presentation sites in companies. In this case, the materials and products are used in various fields. The image data captured by the TV camera or the like and stored in the memory is output as a video signal to the projection type image display device by the arithmetic processing by the personal computer and the remote operation, and is enlarged and projected on the screen.

[0004]

However, in such a conventional image display device, image data obtained by capturing images of materials and products from various fields by a television camera or the like and storing them in a memory is calculated by a personal computer. Since the image signal is output to the image display device by processing and remote control and the image based on the image signal is enlarged and projected on the screen, there are the following problems.

That is, in order to project a three-dimensional image on a screen from image data obtained by photographing a material or a product from various directions, a peripheral device such as a personal computer for processing the image data is used in addition to the projection type image display device. Since it was necessary, there was a problem that the system configuration became large and costly, and it could not be used easily.

An object of the present invention is to provide a small-sized and low-cost image display device for stereoscopically projecting and displaying an image viewed from a designated direction on a hemispherical screen by designating a display position by a touch sensor provided on the hemispherical screen. Is to provide.

[0007]

The invention according to claim 1 is
Corresponding to storage means for storing image data of an image object taken from multiple directions, designating means for designating a position for displaying an image, and image display position designated by the designating means.
The extracting unit that extracts the image data of the image object captured from the position direction in which the image is displayed from the storage unit, and the image based on the image data extracted by the extracting unit are specified by the specifying unit. An image display device, comprising: a display unit that displays the image at a selected position.

Further, in this case, as described in claim 2, the display means comprises a projection means for projecting an image and a screen, and a designation means for designating a display position on the screen, An image based on the image data of the image object extracted by the extracting unit may be projected and displayed at the position on the screen specified by the specifying unit.

Further, as described in claim 3, the screen is formed in a hemispherical shape, and a touch sensor is provided on the surface of the hemispherical shape to serve as the designating means. By installing the projection means and designating the display position by the touch sensor on this hemispherical screen, the display means is
An image based on the image data of the image object extracted by the extracting unit may be projected by the projecting unit and displayed at the designated position of the hemispherical screen.

[0010]

According to the first aspect of the invention, in the image display device, the image data obtained by photographing the image object in multiple directions is stored in the storage means, and the position for displaying the image is designated by the designating means. The image data of the image object captured from the position direction in which the image is displayed corresponding to the designated image display position is extracted from the storage unit by the extracting unit, and the extracted image data is extracted. The image based on the image data is displayed by the display unit at the position designated by the designation unit.

Therefore, only by designating the display position,
Since the image of the object viewed from the direction of the display position designation portion is displayed, it is possible to arbitrarily specify the display position and view the object from multiple directions, and obtain three-dimensional information on the object. it can.

According to a second aspect of the present invention, the display means comprises a projection means for projecting an image and a screen, and a designation means for designating a display position on the screen, and the designation means. The image based on the image data of the image object extracted by the extracting means is projected at the position on the screen designated by.

According to the third aspect of the present invention, the screen is formed in a hemispherical shape, and a touch sensor is provided on the surface of the hemispherical screen to serve as the designating means. The projection means is installed, and by designating the display position by the touch sensor on the hemispherical screen, the image means of the image object extracted by the extraction means at the designated hemispherical screen position by the display means. An image based on the image data is projected and displayed by the projection means. Therefore, the three-dimensional display position specifying operation of the image can be facilitated.

[0014]

Embodiments of the present invention will be described in detail below with reference to FIGS. 1 to 5 are views showing an embodiment of a stereoscopic projection device to which the present invention is applied. First, the configuration will be described. FIG. 1 is a diagram showing an internal configuration of the projection apparatus 1, which includes a cylindrical case 2, a display unit 3, and
A liquid crystal projection device 8 including a position detector 4, a light source 5, an LCD unit 6 and a projection lens 7, a moving rail 9 for moving the liquid crystal projection device 8, and a drive device 1.
0, 11, a mechanical drive unit 12, a control unit 13, and a memory 14.

The display unit 3 is formed of a light-transmissive member in a hemispherical shape and is attached to the upper part of the case 2 in the figure, and a transparent film-like piezoelectric element that covers the surface of the screen. And a touch sensor (not shown) formed by the above.

The position detection unit 4 detects the position information of the image projected from the portion where the surface of the display unit 3 is pressed and the voltage change of the touch sensor occurs, and the detection signal is detected by the control unit 1.
Output to 3.

The liquid crystal projection device 8 is composed of a light source 5, an LCD unit 6 and a projection lens 7, is moved along a moving rail 9 by a driving device 10, and is rotated in the horizontal direction in the drawing by a driving device 11. , A device that projects image data input from the control unit 13 onto the display unit 3. The LCD unit 6 of the liquid crystal projection device 8 is composed of an LCD panel and an LCD driver which will be described later.

The drive unit 10 is a drive unit including a rotary motor for moving the liquid crystal projection unit 8 along the moving rail 9 by the power transmitted by the mechanical drive unit 12. The drive unit 11 is a mechanical drive unit. The drive device includes a rotary motor that rotates the liquid crystal projection device 8 in the horizontal direction in the drawing by the power transmitted by the device 12.

The mechanical drive unit 12 includes a drive device 1 including a rotary motor based on a control signal input from the control unit 13.
It is a device that transmits power to 0 and 11. The control unit 13
A control unit that controls each unit and the mechanical drive unit 12 based on a position detection signal input from the position detection unit 4 and a control signal from a power-on switch attached to the outer surface of the case 2 of the projection apparatus 1 or the like. is there.

The memory 14 is the display unit 3 of the projection apparatus 1.
It is composed of a ROM that stores image data captured from all directions of the object to be projected on the disk, and a driver that reads the image data based on a control signal input from the control unit 13. The ROM is composed of a storage medium such as a CD-ROM and has a removable structure.

FIG. 2 is a diagram showing the internal structure of a projection device 20 having a different driving mechanism for driving the liquid crystal projection device 8. The same components as those of the projection device 1 shown in FIG. The description is omitted.

Instead of the moving rail 9 shown in FIG. 1, a drive device 21 for rotating the liquid crystal projection device 8 in the vertical direction in the drawing is installed. FIG. 3 is a circuit block configuration diagram of the projectors 1 and 20 shown in FIGS. 1 and 2 above.
Reference numeral 20 denotes an input unit 31, an LCD unit 6, a control unit 13,
It is composed of a memory 14 and a mechanical drive unit 12.

The input unit 31 is the display unit 3 shown in FIG.
Touch sensor part that covers the surface of the screen of
The position detection unit 4 and a power-on switch (not shown) mounted on the outer surface of the projection device 1 are used to detect a position pressed by a voltage change of the touch sensor and a power-on switch. A control signal based on an input operation such as is output to the control unit 13. The input unit 31 has a function as a specifying unit.

The LCD unit 6 is the liquid crystal projection device 8 described above.
The LCD unit 6 housed inside is composed of an LCD panel 32a and an LCD driver 32b, and the LCD driver 32b drives the LCD panel 32a to form a projected image by image data input from the control unit 13. The projected image is magnified by the irradiation light emitted by the light source 5 and the projection lens 7 and magnified and projected on the pressed portion of the display unit 3. This LCD unit 6
Has a function as a display unit.

The control unit 13 includes a CPU (Central Processi).
each unit based on a position detection signal input from the position detection unit 4 in the input unit 31 and a signal input from a power-on switch attached to the outer surface of the projection apparatus 1 or the like. Is a circuit unit that controls the drive unit and the drive unit. That is, the control unit 13 outputs a control signal to the mechanical drive unit 12 based on the position detection signal input from the position detection unit 4, and the drive units 10 and 11 (or the drive unit 21).
To direct the liquid crystal projection device 8 to a designated position, output a control signal to the memory 14 to read out image data corresponding to the detected position information, and display the LCD unit 6
The image viewed from the pressed position is enlarged and projected on the pressed portion of the display unit 3.

The memory 14 is a ROM (Read O) that stores image data to be displayed on the display unit 3 of the projection device 1 or 20.
nly Memory) and a driver for reading image data corresponding to the position information from the ROM based on a control signal input by the control unit 13 according to the position information. For example, the ROM has a configuration as shown in FIG. Corresponding to the position information detected by the position detection unit 4, image data obtained by photographing the object from all directions, for example, in FIG.
The image data viewed from the 5 directions is stored. The memory 14 has a function as a storage unit.

The mechanical drive unit 12 includes a drive device 1 including a rotary motor based on a control signal input from the control unit 13.
It is a circuit unit that transmits power to 0, 11 (or the drive unit 21).

Next, the operation will be described. In the projectors 1 and 20 of this embodiment, when the power is turned on by operating the power-on switch, the control unit 13 activates each circuit unit,
As shown in FIG. 5, when, for example, a portion is pressed on the surface of the display unit 3, the display region shown by to in the figure, the pressed position is detected by the position detection unit 4 due to the voltage change of the touch sensor, and A position detection signal indicating the pressed position is output to the control unit 13.

The control unit 13 recognizes that the position is the pressing position based on the position detection signal input from the position detection unit 4, and the control signal for directing the liquid crystal projection device 8 in the pressing direction is mechanically driven. It is output to the unit 12.

In the mechanical drive unit 12, the drive unit 10 and the drive unit 11 (or the drive unit 21) are driven based on this control signal.
Power is transmitted to the liquid crystal projection device 8 by driving the motors in the driving unit 10 and the driving unit 11, and the projection lens 7 is directed in the direction pressed by the movement on the moving rail 9 and the rotation in the horizontal (vertical) direction. To be

Next, in the control unit 13, when a control signal is output to the memory 14 so as to read the image data viewed from the pressed position direction, the memory 14 reads from the ROM in the pressed position direction by the read operation of the driver. Image data, for example, the image data shown in FIG. 4 is read, and the read image data is read by the control unit 33.
Is output to.

Next, when the image data read out from the memory 12 by the control unit 13 is output to the LCD unit 6, the LCD driver 32a in the LCD unit 6 operates the LCD panel 3 based on the input image data.
2b is driven to form a projected image, and an image based on the image data shown in FIG. 4 is magnified on a portion of the display unit 3 pressed by the irradiation light from the light source 5 in the liquid crystal projection device 8 and the projection lens 7. Projected.

As described above, the projection devices 1 and 2 of this embodiment
By using 0, the image of the object viewed from the direction of the pressed portion is displayed only by pressing the surface of the display unit 3. Therefore, the display position can be arbitrarily specified to select the object from multiple directions. You can see and get the stereoscopic information of the displayed image.

The CD-R set in the memory 14
By changing the OM, for example, as shown in FIG. 6, an image of the image data of the landscape viewed from multiple directions (in the figure, the case of viewing from the direction of FIG. 5) is displayed on the display unit 3. You can also let it.

Therefore, unlike the prior art, since a peripheral device such as a personal computer for processing image data is not required as the image display device in addition to the projection type image display device, the system configuration can be downsized and the cost can be reduced. Therefore, the range of use of the image display device can be expanded.

[0036]

According to the invention of claim 1, the image of the object viewed from the direction of the display position designation portion is displayed only by designating the display position. Therefore, the display position can be designated arbitrarily. The object can be viewed from multiple directions and three-dimensional information on the object can be obtained. According to the inventions of claims 2 and 3, it is possible to facilitate the three-dimensional display position specifying operation of the image.

[Brief description of drawings]

FIG. 1 is a diagram showing an internal configuration of a projector according to an embodiment of the present invention.

FIG. 2 is a diagram showing an internal configuration of a projection apparatus of another embodiment to which the present invention is applied.

FIG. 3 is a circuit block configuration diagram of the projection device of FIGS. 1 and 2.

FIG. 4 is a diagram showing an example of image data of an object photographed from multiple directions, which is stored in the memory of FIG. 3;

FIG. 5 is a diagram showing an example of a display position designation operation in the projection device of the present embodiment.

FIG. 6 is a diagram showing an example of an image displayed on the display unit by a display position designation operation in the projection device of the present embodiment.

[Explanation of symbols]

1 Projector 2 cases 3 hemispherical screen and touch sensor 4 Position detector 5 light sources 6 LCD unit 7 Projection lens 8 LCD projector 9 Rails for movement 10 Drive 11 Drive 12 Mechanical drive 13 Control unit 14 memory 20 Projector 21 Drive 31 Input section 32a LCD panel 32b LCD driver

Claims (3)

(57) [Claims] And 1. A storage means for storing image data obtained by an image object photographing from multiple directions, designating means for designating a position for displaying an image, corresponding to the designated image display position by the specifying means
Further , an extracting unit that extracts image data of the image object captured from the position direction in which the image is displayed from the storage unit, and an image based on the image data extracted by the extracting unit is designated by the designating unit. An image display device, comprising: a display unit that displays the image at a selected position. 2. The display means comprises a projection means for projecting the image and a screen. By designating a display position on the screen, the extraction means is arranged at the designated position on the screen. The stereoscopic image display apparatus according to claim 1, wherein an image based on the image data of the extracted image object is projected and displayed. 3. The screen is formed in a hemispherical shape, a touch sensor is provided on the surface of the hemispherical screen to serve as the designating means, and the projection means is installed inside the hemispherical screen. By specifying the display position with the touch sensor on the screen,
The display means is characterized in that an image based on the image data of the image object extracted by the extraction means is projected by the projection means and displayed at the designated position of the hemispherical screen. Item 3. The stereoscopic image display device according to item 2.