JPH0937192A - Multiplex video display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multiplex video display device capable of displaying plural video images on the whole screen of one display device and viewing them. SOLUTION: This multiplex video display device 10 is composed of one screen 11 and picture elements 12 and a directional light guiding means A provided with the directivity of a left direction for instance and the directional light guiding means B provided with the directivity of a right direction are formed on the picture elements 12. Then, only the video images through the directional light guiding means A are selected and viewed by a left viewer 13 positioned in the left direction and only the video images through the directional light guiding means B are selected and viewed by a right viewer 14 positioned in the right direction. By the multiplex video display device, even though a viewing direction is limited, the viewer can enjoy the desired video images without being disturbed by the other video images.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to, for example, a cathode ray tube (CR).
T), a liquid crystal display device, a large-screen display device, and the like, and a multiplex video display device for simultaneously displaying a plurality of video images on the entire screen. The present invention relates to a multiplex video display device capable of visually forming a plurality of video images by forming an image.

[0002]

2. Description of the Related Art In recent years, with the remarkable development of telecommunication technology, wireless and wired new media have appeared one after another. High-definition high-definition (HDTV), clear-vision (EDTV), multi-channel broadcasting using satellite broadcasting technology, and so-called broadcasting multimedia are in progress. Electrical equipment that responds to these trends is also being developed, and various multifunctional products have been introduced. For example, in television receivers, high-definition and wide-screen television receivers having an aspect ratio of 16: 9 are also popular.
In response to the demand for viewers to enjoy multiple images on the same screen, these television receivers use Picture-in-Picture (Picture
in Picture) and a function such as Picture and Picture of dual screen display (Picture and Picture).

[0003]

However, a display device such as a television receiver according to the related art generally displays only one image on one display screen, and a plurality of viewers can display a plurality of images at a time. I can't see the image of. Therefore, in order for a plurality of viewers to view a plurality of images at the same time, a plurality of display devices must be installed, and there is a problem that a large space and a large cost are required. In addition, a picture-in display that displays another image in one corner of the screen as described above.
Televisions with pictures and dual-screen display functions are also on sale, but when a viewer wants to watch a desired program on such a television, he / she sees other images. However, there is a problem that a desired image cannot be viewed for a long time due to distraction.

The present invention has been made in consideration of the above points, and solves the problem that a plurality of images cannot be viewed by displaying a plurality of images on one screen of one display device. Is to provide.

[0005]

In order to solve such a problem, in the multiple image display device of the present invention, a multiple image display device is designed so that a plurality of images are simultaneously displayed on one screen of one display device. In, the screen is divided into one or more pixels, and the directional light guide means having the directional directions such as the vertical direction, the horizontal direction, the vertical direction, and the circumferential direction divided at a constant angle is formed on the pixel. An image processing device that outputs different images according to the directional light guide means is provided. Then, the viewer selects a desired image by the directional light guide means and makes it visible on the entire screen.

In another embodiment of the present invention, the directional light guide means is a polarizing plate, while the viewer selects eyeglasses having a polarizing filter that matches the polarization direction of the desired image to obtain the desired image. Selectable and visible on all screens.

[0007]

In the multiple image display device of the present invention having the above structure,
Since the screen is divided into pixels and the directional light guide means is formed on the pixels and separate images are output according to the directional light guide means, the viewer has a limited visual direction, You can enjoy the video without being disturbed by other videos.

In another embodiment of the present invention, the directional light guide means is a polarizing plate, and the viewer uses polarizing glasses that match the polarization direction of a desired image, and the viewing direction is not limited. You can enjoy the desired video.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the multiple image display device of the present invention will be described below with reference to FIGS.

First Embodiment First, the configuration of a first embodiment of the multiplex video display device of the present invention will be described with reference to FIG. FIG. 1 is a perspective view for explaining a first embodiment of a multiple image display device of the present invention,
(A) is an enlarged view showing a part of the screen in an enlarged manner, (b) is an enlarged view showing a visual example of a viewer in the left direction, and (c) is an enlarged view showing a visual example of a viewer in the right direction. is there.

In FIG. 1, reference numeral 10 indicates a multiple image display device of the present invention. The multiple image display device 10 of the present invention is
It is composed of one screen 11, pixels 12 formed on the screen 11, and the like. Further, on the pixel 12, for example, a directional light guide means A having a directivity in the left direction and a directional light guide means B having a directivity in the right direction are subjected to optical processing such as vapor deposition or fine processing (micro louver). And the like. The left viewer 13 is located to the left of the multiple video display device 10 of the present invention, and the right viewer 14 is located to the right.

The operation of the multiplex video display device of this embodiment having the above-mentioned configuration will be described. The multiple image display device 10 of the present invention is
As shown in FIG. 3A, directional light guide means A and B having directivity in the left-right direction are formed in the pixels 12 of one screen 11. The multiple image display device 10 of the present invention includes:
Although details will be described later, a double tuner for displaying a plurality of images and an external input terminal are provided, a plurality of images input from these are processed, and different images are simultaneously output according to the directional light guide means A and B. An image processing device (not shown) is provided. The image processing apparatus outputs a left-direction image to the pixel 12 in which the directional light guide unit A is formed, and outputs a right-side image to the pixel 12 in which the directional light guide unit B is formed. Has been done.

When the left viewer 13 positioned to the left of the screen 11 visually recognizes the screen 11 of the multiple video display device 10 of the present invention, as shown in FIG. Only the image through the directional light guide means A having is selected and viewed. At this time, the images displayed on the screen 11 are decimated in a strict sense, but the integration effect of the viewer's eyes removes the effect of the decimation and the images are viewed as smooth images. Similarly, when the right viewer 14 positioned to the right of the screen 11 views the screen 11 of the multiple video display device 10 of the present invention, it has directivity in the right direction as shown in FIG. Only the image through the directional light guide B is selectively viewed.

In this way, the left viewer 1 positioned to the left
3 can see only the left image from the whole screen of one screen 11 by the function of the directional light guide means A, and at the same time, the right viewer 14 can only see the right image from the whole screen of one screen 11. You will be able to see. Also,
If the same image is displayed on the directional light guides A and B by the image processing device, the left viewer 13 and the right viewer 14 are displayed.
Also, a viewer (not shown) located substantially in the center can see the same image as in a normal television receiver. The feature of the multiple image display device of the present invention is that the viewer's visual position is limited, but different images can be viewed without the need for separating means such as eyeglasses, which is particularly effective as a new function on a large screen. Is played.

Embodiment 2 This embodiment is an example in which a polarizing plate is used instead of the directional light guide means in the first embodiment, and this will be described with reference to FIG. The parts common to those described in the first embodiment are designated by the same reference numerals, and the description thereof will be partially omitted. 2A and 2B are perspective views for explaining a second embodiment of the multiple image display device of the present invention. FIG. 2A is an enlarged view showing a part of the screen on an enlarged scale, and FIG. FIG. 3C is an enlarged view showing a visual example of FIG. 3C, and FIG.

In FIG. 2, reference numeral 20 indicates a multiple image display device of the present invention. The multiple image display device 20 of the present invention is
One screen 11 and pixels 1 formed on the screen 11
2. A vertical polarizing plate 21 and a horizontal polarizing plate 22 are formed on the pixel 12, for example. A viewer 23 'wearing vertical polarizing glasses 23 and a viewer 24' wearing horizontal polarizing glasses 24 are located in front of the multiple image display device 20 of the present invention.

The operation of the multiple image display device of this embodiment having the above-mentioned structure will be described. In the multiple image display device 20 of the present invention, a vertical polarizing plate 21 and a horizontal polarizing plate 22 are formed on one pixel 12 of one screen 11 as shown in FIG. The multiple image display device 20 of the present invention includes:
Although not shown, a double tuner for outputting a plurality of images and an external input terminal are provided, and further, a plurality of images input from these are processed, and depending on the vertical polarizing plate 21 and the horizontal polarizing plate 22, An image processing device for simultaneously outputting different images is provided. The image processing device outputs the first image to the pixel 12 having the vertical polarizing plate 21 formed thereon, and outputs the first image to the pixel 12 having the horizontal polarizing plate 22 formed thereon.
It is designed to output the image of.

Then, the viewer 23 'who uses the vertical polarizing glasses 21 in the same direction as the vertical polarizing plate 21 displays the screen 1
When 1 is viewed, the first image displayed through the polarizing glasses 23 in the vertical direction is viewed as shown in FIG.
When a viewer 24 'who uses the same horizontal polarization glasses 24 as the horizontal polarization plates 22 sees the screen 11, it is displayed through the horizontal polarization glasses 24 as shown in FIG. Visualize the second image. At this time, the viewer 23 '
The viewing position of the viewer 24 'is not limited to that in the first embodiment, and an image in the same polarization direction can be viewed from any position in front of the screen 11.

Next, a circuit configuration common to the first and second embodiments will be described with reference to FIG. FIG. 3 is a block diagram showing an example of a circuit of the multiplex video display device of the present invention.

The circuit configuration of the multiple image display device of the present invention is as follows:
An antenna 1 such as a U / V or satellite for receiving a broadcast signal, a tuner 2 such as a U / V or BS / CS connected to it, a tuning microcomputer 2a for controlling these, an AV switch for selecting a desired image 3, an external input terminal 4 connected to the AV switch 3, a video processor 5 including an A / D converter, a three-dimensional Y / C separator, etc., for various video processing, a memory and a D
An image processing device 6 having an A / A converter for synthesizing a plurality of video signals, a CRT 7 for displaying a plurality of videos, a selection means 8 such as operation keys or a remote controller for a viewer to select a desired video,
The main microcomputer 9 is in charge of various controls.

The operation of the circuit of the multiple image display device of the present invention having such a configuration will be described. In FIG. 3, the antenna 1 receives a broadcast signal, generates an RF signal, and outputs it to the tuner 2 in the next stage. The tuner 2 performs band amplification, conversion to a video intermediate frequency signal, and tuning operation according to an instruction from the tuning microcomputer 2a. With the AV switch 3, U / V and BS
A switching operation of a plurality of video signals input from a tuner such as / CS or the external input terminal 4 is performed. The video processor 5 carries out processing of picture control and image quality adjustment as well as amplification of luminance signal and color signal.

In the image processing device 6, for example, a digitized composite video signal is stored in a memory, different video signals are added / subtracted between fields according to a command from the main microcomputer 9, and these are combined to obtain A plurality of video signals are generated and output to the CRT 7 in the next stage. The CRT 7 outputs a plurality of video signals as described above to display a video. The viewer operates a remote controller or the like as the selection means 8 to perform a channel selection operation, image quality adjustment, and selection of a plurality of images according to the present invention. The main microcomputer 9 controls the overall multiple image display device of the present invention, for example, I ² C BUS.
It is controlled via a control signal such as an interface.

The present invention is not limited to the above-described embodiment, but can employ various embodiments. For example, in the above-described embodiment, the CRT is illustrated as an example of the multiple image display device, but it can be applied to the liquid crystal display device as well, and in the case of the liquid crystal display device, it is easy to handle since it already has the polarizing plate. Is. Further, the present invention can be applied to a large-sized image display device to be used for an event, or can be applied to an advertising panel to enhance an advertising effect. Further, it goes without saying that the present invention is not limited to the above-described embodiment and can be developed into various forms such as a stereoscopic display device.

[0024]

As described above, according to the multiple image display device of the present invention, it is possible to display a plurality of images on the entire screen of one screen of one display device. Since the viewers can separately watch the desired video, there is an effect that a plurality of videos can be viewed on the entire screen on one display device, for example, one watching a TV drama and the other enjoying a video game. Further, since only one display device is required, space can be saved and the cost can be reduced. This has an effect that a large space can be saved and the cost can be reduced in a place of business where a large number of monitors are used, such as a control tower at an airport.

[Brief description of drawings]

1A and 1B are perspective views for explaining a first embodiment of a multiple image display device of the present invention, in which FIG. 1A is an enlarged view showing a part of a screen in an enlarged manner, and FIG. An enlarged view showing a visual example of a viewer, and (c) is an enlarged view showing a visual example of a viewer in the right direction.

2A and 2B are perspective views for explaining a second embodiment of the multiplex image display device of the present invention, in which FIG. 2A is an enlarged view showing a part of the screen in an enlarged manner, and FIG. FIG. 6 is an enlarged view showing a visual example of eyeglasses, and (c) is an enlarged view showing a visual example of polarized glasses in the lateral direction.

FIG. 3 is a block diagram showing an example of a circuit of the multiplex video display device of the present invention.

[Explanation of symbols]

 1 Antenna 2 Tuner 3 AV Switch 4 External Input Terminal 5 Video Processor 6 Image Processing Device 7 Cathode Ray Tube (CRT) 8 Selection Means 9 Main Microcomputer 10, 20 Multiple Video Display Device of the Present Invention 11 Screen 12 Pixel 13 Left Viewer 14 Right Viewer 21 Vertical polarization plate 22 Horizontal polarization plate 23 Vertical polarization glasses 24 Horizontal polarization glasses A, B Directional light guide means

Claims (4)

[Claims] 1. A multiple image display device for simultaneously displaying a plurality of images on one screen of one display device, wherein the screen is divided into predetermined pixels, and a predetermined directivity direction is provided on the pixels. An image processing device that forms a directional light guide means and outputs a plurality of images in conformity with the directional light guide means is provided, and the plurality of images are selectively and full-screen by the directional light guide means. A multiple image display device characterized by being visible. 2. The directional direction of the directional light guide means is at least one of a left-right direction, a vertical direction, an up-down left-right direction, and a circumferential direction divided at a predetermined angle toward the screen.
The multiple image display device according to claim 1, wherein the multiple image display device is a direction. 3. The multiple video display device according to claim 1, wherein the predetermined pixel is at least one pixel of the screen. 4. The directional light guide means is a polarizing plate, while the viewer selects eyeglasses having a polarizing filter that matches the polarization direction of the desired image, and the desired image is selectively and full screen. The multiple image display device according to claim 1, wherein the multiple image display device is made visible.