JPH08234680A - Information display device - Google Patents

Abstract

PURPOSE: To provide a new information display device having a picture recording and reproducing mechanism as well. CONSTITUTION: The information display device is provided with a camera 3 for photographing the subject of observation and a combiner 8 on the rear surface of a display unit main body 1, an operating button 6 (REC denotes a picture recording button, REW denotes a stopping and rewinding button and RPT denotes a reproducing button) for instructions of the picture recording and reproducing of the subject of the observation on the right surface and a track ball 4 for selecting display information and a click switch 5 on the left surface and a recorded picture is displayed on the combiner 8 by a button operation as necessary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information display device for photographing and recording an object in the front field of view and displaying it as one piece of information.

[0002]

2. Description of the Related Art When observing exhibits in aquariums, botanical gardens, zoos, museums, galleries, museums, exhibition halls, showrooms, etc., the work contents are displayed to workers such as various product manufacturing plants and assembly plants. It has been proposed to use an information display device using a head-up display when observing an exhibit at the time of performing a display, and the following device configurations are known.

That is, the conventional information display device is provided with a combiner that transmits a light beam from a front observation object to a rear observation position and reflects the display information light from the information projecting device to a user's visual recognition position. The observation object in front and the display information can be visually confirmed through the combiner.

In such a display device, the information projecting device directs the display information light emitted from the optical information display portion and the display surface having a display surface on which information about an object to be observed is displayed in a predetermined direction. It has an optical system to direct it. The virtual image of the display information is displayed by the optical system and the combiner in front of and away from the observation position.

This is because by displaying both the observation object and the virtual image of the display information at a distance, the parallax angle when viewing the virtual image of the observation object and the display information is substantially the same, and the observation object and the display information are displayed. This is so that the virtual image of can be observed at the same time.

[0006]

However, in the conventional information display device, information such as characters and computer graphic (CG) images emitted from the display surface is stored in the memory in advance, and the information on the front field of view is not displayed. Although it had an interactive function such as searching information while looking at it, it did not have a function for an observer to record and reproduce the front field of view itself and confirm the state in which the object changes with time. Therefore, it was not possible to visually recognize the appearance of the object itself viewed by the observer as information, or to visually compare the front field of view and the image by superimposing them.

Therefore, it is an object of the present invention to provide a novel information display device which also has a recording / reproducing mechanism.

[0008]

In order to solve the above problems, the present invention provides a display having a display surface on which an image is displayed and an image display light emitted from the display in a predetermined direction. An optical member and an information display device provided in front of the observer's field of view and provided with a combiner for transmitting light from the outside and reflecting or diffracting light from the display device, and a photographing means for photographing an observation object, It is characterized by further comprising recording means for recording the image photographed by the photographing means and reproducing means for reproducing the image recorded by the recording means on the display.

Here, for example, a CRT display, a liquid crystal display, a plasma display or the like can be used as the display, and a known one such as an uneven lens or a mirror can be used as the optical member. Further, the combiner may be anything as long as it transmits light rays from the outside and deflects the image display light projected from the display device in a direction that can be visually recognized by an observer, and a holographic combiner or the like can be used.

As the photographing means, for example, a TV camera, C
Examples thereof include a CD camera and the like, but the present invention is not limited to these, and any device that can photograph an observation target object may be used. The recording means can use a well-known storage memory that is generally used, and the reproducing means takes out the image information stored in the recording means by the controller and sends it to the display. Recording and playback instructions are provided by providing a recording / playback button on the display,
This can be performed by, for example, a device provided with a receiving terminal and wirelessly transmitting from a remote place, but is not limited thereto.

The information display device of the present invention can be fixedly arranged at a position where an observation object (exhibition, etc.) can be observed, or can be mounted on the head and used. Also, the information to be displayed is
Sightseeing spots, historic sites, aquariums, botanical gardens, zoo creatures,
It can be used for exhibits such as museums, art galleries, museums, exhibition halls, and showrooms, as well as work contents such as manufacturing plants for various products and assembly plants.

[0012]

In the present invention, the combiner arranged in front of the observer's field of view transmits the light rays from the outside, and in addition to the information display light emitted from the display, the observation object imaged and recorded by the image capturing means. The image of is directed to the viewing position of the observer. Therefore, the observer can visually recognize the recorded image by superimposing it on the front visual field.

[0013]

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows an embodiment of the information display device of the present invention.
1 (a) is an overall schematic view, FIG. 1 (b) is the front surface of the display body,
It is a right-and-left side view. In the figure, 1 is a display main body, a camera 3 for photographing an observation target object on the rear surface, a combiner 8, a handle 2a on the right side, an operation button 6 for instructing recording / reproduction of the target object (REC is a recording button, REW has a stop and rewind button, RPT has a play button), and a handle 2b, a trackball 4 for selecting display information, and a click switch 5 are provided on the left side surface. Further, a viewing window 11 and speakers 7a and 7b are provided on the front surface.

The display main body 1 is supported by columns 9, and a rotation shaft (not shown) is housed in the columns 9.
The rotating shaft and the display unit 1 are integrated,
Can be rotated up, down, left and right. Further, the support column 9 is fixed to the base 10.

The internal structure of the display body 1 is shown in FIG. The inside of the display body 1 is a combiner 8 and a lens system 2.
7. The liquid crystal panel 26 is constituted by the liquid crystal panel 26, and the liquid crystal panel 26 is driven by the display output means described later. Further, behind the liquid crystal panel 26, a cold cathode tube 23 for generating light and a scattering plate 25 for making the unevenness of light uniform are installed, and the cold cathode tube 23 is driven by an inverter 24. Then, the combiner 8 directs the light rays from the outside from the front to the rear, and directs the display light from the liquid crystal panel 26 to the visual recognition position.

The display output means is a detection circuit S in a broken line frame in the figure.
It is composed of ₁ , a control circuit S ₂ , and a display circuit S ₃ . First, the detection circuit S ₁ includes a CCD 16 for converting an image of an observation object photographed from the lens 15 through the filter 13 into a voltage, a drive circuit 17 for driving the CCD 16, and a Schmitt trigger 12 for detecting the voltage. It is configured. The drive circuit 17 is a CPU
The CCD 17 is driven according to the clock of 18.

The control circuit S ₂ converts the electric potential detected by the Schmitt trigger 12 into a signal and receives an instruction to record the front view from the external operation button 6, the input / output interface 14, the signal and the external track. It is composed of a CPU 18 that performs calculation based on coordinate information obtained from the ball 4 and the click switch 5, and a memory 28 in which a program for driving the CPU 18 is written.

Further, the display circuit S ₃ has an image memory 20 for storing the image signal sent from the control circuit S ₂ and a CPU.
18 and an image controller 19 for reading and writing to the image memory 20 according to instructions from the input / output interface 14, an image output interface 21 for outputting the image to an image, and a converter for supplying the image output to the liquid crystal panel 26. It is composed of a liquid crystal driver 22. Information such as characters and CG images is also stored in the image memory 20 in advance.

In the above structure, an operation for observing a scene will be shown. First, an observer holds the handles 2a and 2b of the display body 1 and rotates the display body so that the combiner 8 faces the observation target. An image (initial image) seen through the combiner 8 at this time is, for example, as shown in FIG.
It is shown in (a). In this state, the trackball 4 is moved to move the cursor E on the screen into the frame displayed as "record". Then, when the click switch 5 is pressed, the recording mode is selected, and the window W for displaying the image being taken by the camera 3 is displayed at the lower left of the screen. When REC of the operation button 6 is pressed, recording is started, and the image being taken by the camera 3 is displayed in the window W. This state is shown in FIG. Desired time (eg 30 seconds) REC
By pressing, the image during that time is stored in the image memory 20.

When it is desired to end recording, the REW operation button 6 is pressed. Then, the recording is stopped and the recorded data is rewound. The screen at this time is shown in Fig. 3.
As in (b), the last recorded video is displayed in the window W.

Then, for example, when the recorded image is desired to be reproduced after one hour, the RPT of the operation button 6 is pressed to display the image recorded one hour before on the screen.
This state is shown in FIG. Note that the same image can be viewed many times each time the RPT button is pressed until the next image is recorded with the REC button.

When you want to finish a series of recording / playback work,
The trackball 4 is moved so that the cursor moves within the frame displayed as “End” in the right corner of the screen of FIG. 3C, and the click switch 5 is clicked when the cursor (not shown) enters the frame.
Press. As a result, the screen returns to the initial screen shown in FIG.
The above operation is repeated when new recording is desired.

Although the above-mentioned device is of a stationary type at the observation place, the present invention is not limited to a fixed type and may be a head-mounted display device (HMD). A specific example of the HMD is shown in FIG. Reference numeral 41 in FIG. 4 denotes a head mounting member fixed to the head, and the head mounting member 41 is a vertical support member 41a that is curved leftward and downward from the top of the wearer's head, and is curved leftward and rightward forward from the occipital region. It has a horizontal support member 41b. The left and right lower end portions of the vertical support member 41a and the left and right front end portions of the horizontal support member 41b are joined together.

A pair of small speakers 42 are supported at the left and right lower end portions of the vertical support member 41a of the head mounting member 41, and a see-through type display main body 43 is supported at the left front end portion of the horizontal support member 41b. ing.

The see-through type display main body 43 has an information projecting device 44 and a combiner 43. Also,
The information projecting device 44 has a case 45 supported on the left front end of the horizontal support member 41b. The combiner 43 is supported at the front end of the information projecting device 44 so that the angle can be adjusted, reflects the information display light emitted from the information projecting device 44 toward the wearer of the head mounting member, and observes the front. It is arranged so that the light emitted from the object is transmitted toward the wearer.

Further, the horizontal support member 4 of the head mounting member 41
A camera 46 for photographing the observation object is supported at the right front end of 1b, and the photographing light is sent into the display main body H. Instructions for recording / playback are given by the operating unit T, and the operating unit T is operated by the wearer himself / herself of the head mounting member. The operation unit T has operation buttons 47 (REC is a recording button, REW is a stop / rewind button, RPT is a reproduction button), a trackball 48 for selecting display information, and a click switch. Four
9 are provided, and the signal selected and instructed here is sent to the inside of the display unit H via the communication cable 50. The communication cable 50 is a flexible cable and an adapter 51.
Is supported by the horizontal support member 41b of the head mounting member 41. The internal structure of the display unit is shown in FIG.
The structure is the same as that of FIG. 3, and the operation method and the display image are the same as those in FIG.

[0027]

According to the present invention, not only the information stored in advance but also the image captured by the observer can be displayed, so that the range of visible information is widened. That is, it is possible to avoid providing information, which has been unilateral to the observer in the past. In addition, when the observation object changes with time,
If you record the scene you want to watch, you can watch it again and again, and the comparison with the front view will be obvious.

[Brief description of drawings]

1A is an overall external view of an information display device of the present invention which is a stationary type, and FIG. 1B is a view of the display body of FIG.

FIG. 2 is a diagram showing an internal structure of a display body.

FIG. 3 is a diagram showing a displayed image.

FIG. 4 is an external view of a head-mounted type information display device of the present invention.

[Explanation of symbols]

 1, H ... Display main body 3, 46 ... Camera 4, 48 ... Trackball 5, 49 ... Click switch 6, 47 ... Operation button 8, 43 ... Combiner

Claims (1)

[Claims] 1. A display device having a display surface on which an image is displayed, an optical member for projecting image display light emitted from the display device in a predetermined direction, and an optical member arranged in front of a field of view of an observer and from the outside world. In an information display device provided with a combiner that transmits light and reflects or diffracts light from a display, a photographing means for photographing an observation object, and a recording means for recording an image photographed by the photographing means An information display device comprising: a reproduction unit that reproduces an image recorded by the recording unit on the display.