JPH11327533A - Three-dimensional video display device and three-dimensional display game device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain presence and immersed feeling of a view angle of nearly 180 deg. provided in a human body by providing a video following the glance of the human body with a three-dimensional CG, etc., with two-dimensional flat display. SOLUTION: The fact that the wide part of the human view angle doesn't require large resolution, and the presence feeling is obtained even when only tilt information exists is utilized. This device is provided with a pair of display means so that their display surfaces oppose to each other on left/right of its front in addition to a central display means, and this display means displays respectively a part of left/right of a central video while gradually deteriorating its horizontal resolution as approaching the wide side of the view angle. Thus, the video of the wide view angle is obtained without the drastic increase of the video signal data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional video display device and a three-dimensional display game device.

[0002]

2. Description of the Related Art Conventionally, as a display device of a video signal, there is a cathode ray tube monitor or a liquid crystal display device, which is used as a display device of a television signal or personal computer information. These display devices are also used for images of games and the like created by three-dimensional CG. Further, as a display device that can provide a sense of realism, there is a cinerama in a movie, and a large realistic feeling is obtained due to a wide viewing angle with a wide screen.

[0003]

However, the above display device has the following problems. The current three-dimensional CG data is converted into a two-dimensional video signal and displayed on the monitor or the like.
This is a change in the image according to the movement of the viewpoint of the viewer 4 in the CG, but this is a change in the planar image on the front monitor. I can't get it. In other words, the image display has little realism or immersion. As a method for solving this problem, a method of simultaneously generating and sending video signals for the left and right display devices and displaying the video signals on three video devices can be considered. Is large and the data capacity is increased, which leads to an increase in the number of recording devices and an increase in the speed of signal processing and transfer, which is uneconomical. In the cinerama, a wide and large screen on the circumference has an effect of obtaining a sense of realism, so that the cinerama is not suitable for a display device for personal use, and the amount of information is large, thus causing the same problems as described above. The present invention has been made in view of the above-mentioned problems, and solves these problems by using a three-dimensional image display device.

[0004]

According to the first aspect of the present invention,
A first video display means for displaying an input video signal, and a pair of left and right video display means provided on both sides of the display surface such that the display surfaces face each other; Recording means, and first reading control means for reading out the readout in each horizontal cycle so that the resolution becomes coarse at first, and gradually approaching the resolution of the input state, and displaying the readout output on the left video display means A second recording means for recording a part of the rear end in each horizontal cycle of the input video signal; and a second reading control means for reading out the readout at a high resolution initially in each horizontal cycle and gradually reading out the coarse state. And the readout output is displayed on the right image display means.

According to a second aspect of the present invention, the input video signal is transmitted and received in a form in which a left video signal portion and a right video signal portion are added to the center video signal.

According to a third aspect of the present invention, there is provided a central image display means for displaying an input image signal, and a pair of light expansion display means provided on both sides of the display surface so as to face each other. Displays a part of the left end display of the center image display means as it moves away from the center image display means, while reducing its horizontal resolution, in a photoconductive display. The portion is photoconductively displayed such that its horizontal resolution decreases as the distance from the central image display means increases.

According to a fourth aspect of the present invention, the light expansion display means comprises a multiplicity of light expansion elements coupled in a horizontal direction and a vertical direction, and has light blocking means between the light expansion elements. The sectional area of the output surface is gradually enlarged in the horizontal direction with respect to the sectional area of the input surface.

According to a fifth aspect of the present invention, a three-dimensional image display device according to the present invention is provided in a conventional game device, wherein the image display device is provided.

[0009]

FIG. 1 shows a first embodiment of the present invention. A pair of video display devices, a left video display device 2 and a right video display device 3, are provided so that the central video display device 1 and the display surfaces face each other. This display device is a normal cathode ray tube type, liquid crystal display type, plasma display type, or EL display.
A display system or a projector can be used, and the display system is not limited.

The operation state will be described with reference to the timing chart of FIG. 2 and the block diagram of FIG. Each signal in the figure is a horizontal synchronizing signal 11, an input video signal 12, an output signal 15 for a central video display device, an output signal 14 for a left video display device, and an output signal 17 for a right video display device. Input video signal 12
Are portions of the video signal excluding the blanking portion, and indicate digital data.

First, when the input video signal 12 is input, the central video display device 1 receives the output signal 15 for the central video display device delayed by 1H (one horizontal scanning time) by the delay circuit 27, and the first recording unit. A part of the leading end of the video in the 1H section is written as F1 of the first recording signal 13 in the semiconductor memory 21 of FIG. This write control is performed by the horizontal synchronization signal 11.
The address is sequentially updated from the top of the video by the timing pulse generated from the above. This is achieved by the write control unit 23. Also, a part of the rear end of the video in the 1H section is written as B1 of the second recording signal 16 in the semiconductor memory 22 of the second recording unit. This writing control is performed by sequentially updating the address from the middle of the latter half of the video by a timing pulse generated from the horizontal synchronization signal 11. This is achieved by the write control unit 24.

The first recording signal 13 written in the semiconductor memory 21 is transmitted to the first read control unit 2 at the next synchronous timing.
5 is read. At this time, the same address is repeatedly read out several times, and the number of times of repetition is gradually reduced. That is, at first, the horizontal resolution is coarse, and the resolution is gradually increased. At the end of horizontal scanning, the resolution approaches or becomes equal to the input resolution. The read output signal 14 for the left image display device is input to the left image display device 2 and displayed. Second recording signal 1 written in semiconductor memory 22
6 is read by the second read control unit 26 at the next synchronization timing. At this time, the same address is repeatedly read out several times, and the number of repetitions is gradually increased. That is, initially, the horizontal resolution is a value equal to or close to the input, and the image gradually decreases in resolution. The read output signal 17 for the right image display device is
Is entered and displayed. Here, the video signal is transmitted to the central video display device 1 via the delay circuit 27, but this block is not necessarily required.

As a result, as shown in FIG. 1, when the viewpoint of the viewer 4 is placed in the three video display devices and the central video display device 1 is viewed, the three video images become one continuous video. The left image display device 2 displays a part of the left end of the center image display device 1 while decreasing the horizontal resolution as the distance from the center image display device 1 increases, and the right image display device 3 displays the center image display device 1 Is displayed such that its horizontal resolution decreases as the distance from the central image display device 1 increases. However, the resolution here is reduced only in the horizontal direction, and there is no reduction in the vertical resolution.

Since the resolution of the human eye decreases as the viewing angle increases, the resolution of the display device may be reduced for a portion having a large viewing angle in the left-right direction, and the change in the tilt in the vertical direction may be reduced. If information can be obtained, a great sense of realism will be obtained. As a result, an image with a wide viewing angle can be obtained simply without increasing the amount of information, and a high sense of realism and immersion in a three-dimensional CG game or the like can be obtained. Here, the overlapping portion of the pair of left and right video display devices with respect to the central video display device 1 may be arbitrarily determined as long as the continuity of the video is allowed, and the mounting angle may be arbitrarily determined.

In the figure, for the sake of explanation, the horizontal direction is displayed at five types of resolutions, but the present invention is not limited to this. The purpose of this is to create a video signal for use by reducing the resolution, and the degree of resolution and the number of combinations of the types may be freely determined. For example, in the case of the right image display device 3, the right 37 pixels (portion B1 in FIG. 2) of the horizontal 720 pixel input image signal are read twice (first half resolution) and then three times. Reading (resolution 1 /
3) Next, when reading is repeated four times (1/4 resolution), the total reaches 740 at the 37th pixel, and data for 720 pixels in the horizontal direction for the right image display device 3 is obtained.

In another combination, for example, the first 52 pixels are read twice (resolution 1/2) and the second pixel is read twice from the right 52 pixels (B1 portion in FIG. 2) of the screen of the input video signal of 720 horizontal pixels. (Resolution 1/2) and then read three times (resolution 1 /
3) Next, when reading is repeated three times (resolution 1/3), the total reaches 754 at the 52nd pixel, and data of 720 horizontal pixels for the right image display device 3 is obtained. Further, the vertical resolution may be reduced as long as the image quality is allowed.

According to the second embodiment of the present invention, in addition to the center display video signal, the left display video signal and the right display video signal may be transmitted simultaneously to the input video signal 12. Although this is possible, in this case, as shown in FIG. 4, the left video signal portion (L
1, L2, etc.), the central video signal portion (represented by S1, S2, etc.) and the right video signal portion (represented by R1, R2, etc.) in succession. (The signal names and operations of 11a to 17a in the figure correspond to those in FIG. 2.) Here, the transfer rate of the signal on the time axis is increased to increase the data amount of the left and right video signals, and The speed may be returned to an arbitrary speed at the time of reading, or the signal may be subjected to signal processing such as increasing the compression ratio or limiting the band using a filter. Also, these signals may be in any order and may use different transmission paths. Thus, a three-dimensional video device capable of visually recognizing the entire screen of the central video display device 1 can be provided with only a slight increase in the data amount. In both the first and second embodiments, 1
Although the operation has been described for the horizontal synchronization period, it goes without saying that this is sequentially repeated for each horizontal synchronization period, and a screen of one field or one frame is formed for each vertical synchronization period.

FIG. 5 shows a third embodiment of the present invention, in which a central image display device 1 and a left-side light expansion display device 31 and a right-side light expansion display device 3 are arranged such that display surfaces face each other.
Two pairs of display devices are provided. These left and right display devices are made of a photoconductive material, and the central image display device 1
Can be guided in the left-right direction of the viewer 4's viewpoint.

FIG. 6 is a structural view of an optical extension block 33 which is a part of the left optical extension display device 31.
3e. This light expansion element has a larger output surface area than the light input surface area, and has a larger output surface area as the light expansion element moves away from the central image display device 1. By making the angle of the output surface close to the direction of 90 degrees with respect to the input surface, the center image can be conductively displayed on the left surface. This is a vertically multi-layered structure, which is the left optical expansion display device 31.
become. Although not shown, a reflective material or a reflective paint is inserted between the light expansion elements to block light from each other.
In addition, the right-side optical expansion display device 32 has the same structure for left and right.

Thus, as shown in FIG. 5, when the viewpoint of the viewer 4 is placed in the three video display devices and the central video display device 1 is viewed, the three video images become one continuous video. The left optical extended display device 31 displays a part of the left end of the central video display device 1 while decreasing the horizontal resolution as the distance from the central video display device 1 increases, and the right optical extended display device 32 displays the central video display. A part of the right end of the device 1
The display is such that the horizontal resolution is reduced as the distance from the central image display device 1 increases. Here, the number of pixels entering the light input surface may be arbitrarily determined both horizontally and vertically. In addition, the mounting angles of the left and right optical expansion display devices with respect to the center image display device 1 may be arbitrarily determined.

In the drawing, for the sake of explanation, the horizontal direction is displayed at five different resolutions, but the present invention is not limited to this. The video signal is generated by lowering the resolution, and the degree of resolution and the number of divisions of the optical extension block 33 may be freely determined. The vertical direction is also displayed with four layers of resolution, but this is also for the purpose of explanation, and the present invention is not limited to this. Actually, it is possible to increase the resolution by increasing the number of layers to the number of scanning lines.

Next, in FIGS. 1 and 5, an operation console for simulating a motorcycle, ski, or the like is provided below the viewpoint of the viewer 4 (not shown), and a gamer (viewer 4) is provided on the operation console. Even in a simulation game in which the image of the running scenery screen changes according to the tilt of the operation console when the user operates on the board, the scenery of the left and right image display devices also changes in conjunction, so a 3D image with a wide viewing angle Can be reproduced, a great sense of presence and immersion of the game can be obtained, and a realistic game can be provided.

[0023]

According to the present invention, the following effects can be obtained. (1) A wide viewing angle of 180 degrees or more is obtained, and an image with a high sense of realism and immersion is obtained. (2) In a simulation of a motorcycle or an airplane, the left and right landscapes are continuously inclined by turning or the like, so that a change in posture can be obtained in a realistic manner. (3) Since the left and right portions of the central image display device 1 are used as images of the left and right display devices, a display with a wide viewing angle can be obtained without increasing the information amount of the input image signal. (4) In the case of the second embodiment, a display with a wide viewing angle using the entire screen of the central image display device 1 can be obtained with only a slight increase in the data amount.

[Brief description of the drawings]

FIG. 1 is an external view of a three-dimensional image display device of the present invention.

FIG. 2 is a timing chart of the three-dimensional video signal processing of the present invention.

FIG. 3 is a block diagram of 3D video signal processing according to the present invention.

FIG. 4 is a timing chart of a second embodiment of the three-dimensional video signal processing of the present invention.

FIG. 5 is an external view of a three-dimensional image display device using the optical extension display element of the present invention.

FIG. 6 is a structural view of an optical extension element block according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Central video display device 2 Left video display device 3 Right video display device 11 Horizontal synchronization signal 12 Input video signal 14 Left video signal output 17 Right video signal output 31 Left light extended display device 32 Right light extended display device

Claims (5)

[Claims] 1. A center image display means for displaying an input image signal, and a pair of left and right image display means provided on both sides of the display surface so that the display surfaces face each other. And first reading control means for reading the readout such that the resolution becomes coarse at first in every horizontal cycle, and gradually approaching the resolution of the input state. A second recording means for displaying on the video display means and recording a part of the rear end in each horizontal cycle of the input video signal, and reading out the readout at a high resolution initially in each horizontal cycle and gradually reading it out in a coarse state A three-dimensional video display device having a second read control unit and displaying the read output on a right video display unit. 2. The tertiary system according to claim 1, wherein said input video signal is transmitted and received in a form in which a left video signal portion and a right video signal portion are added in addition to the video signal for the central video display means. Original video display device. 3. A central image display means for displaying an input image signal, and a central image display means for displaying an input image signal on both sides of the display surface.
Providing a pair of left and right light expansion display means, this left light expansion display means, a part of the left end display of the center image display means, as the distance from the center image display means, photoconductive display while lowering its horizontal resolution, The three-dimensional image display, characterized in that the right-side light extended display means displays a part of the right end display of the center image display means as the distance from the center image display means decreases as the horizontal resolution decreases. apparatus. 4. The light expansion display means comprises a multiplicity of light expansion elements coupled in a horizontal direction and a vertical direction,
4. The three-dimensional image display device according to claim 3, further comprising light blocking means between the light expansion elements, wherein a cross-sectional area of the output surface is gradually enlarged in a horizontal direction with respect to a cross-sectional area of each light input surface. . 5. A three-dimensional display game device, wherein the video display device is a three-dimensional video display device of the present invention in a normal game device.