JP2001282133A - Large-sized video device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a large-sized video device which displays continuous videos free of breaks of a screen when the large screen of a plane or curved surface is constituted and which has excellent uniformity of synchronism and color regulation. SOLUTION: Video display surfaces 313 arrayed with a multiplicity of pixels 308 composed by red, green and blue light emitting elements 309 along an arcuate curved surface of a ceiling 310 of a street 311 are constituted. The videos are displayed on the video display surfaces 313 by supplying video signal inputs 302 inputted to a drive assembly 301 via a drive unit 304. The drive unit 304 displays the videos by sweeping the video display surfaces 313 at every pixel string 305.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large-sized image display device for displaying a video screen in a large outdoor or indoor hall, a baseball stadium, a stadium, and the like.

[0002]

2. Description of the Related Art Conventionally, large outdoor and indoor halls, baseball stadiums,
A large-screen video device is placed in a stadium (hereinafter abbreviated as a stadium) or the like, and images of a scene such as music performance or sports being performed in the stadium are taken by a camera, and the performer or the athlete is taken. The live performances and competitions are broadcast at the same time as the facial expressions and enlarged images. For example, when professional baseball is being played at Tokyo Dome, the same image as displayed on television is displayed on a large-screen video device on the back screen, showing the expressions of players and managers who are difficult to see directly from the audience, and VT.
The play can be seen retroactively in the R image.

[0003] Fig. 7 shows an example of a conventional large-sized video device sawing voice. Large picture device 121 has red LED 116, green L
A display screen is formed by arranging a large number of pixels 114 in which EDs 117 and blue LEDs 118 are arranged in a delta shape in rows and columns. The video signal input from the video input terminal 101 is separated into a video level signal Y and a chroma signal C by a Y / C separation circuit 102, and a double-speed conversion circuit 03 performs double-speed conversion processing for smoothing the motion of the video. Matrix RG
The B conversion circuit 104 separates the light into three primary colors of a red signal 105, a green signal 107 and a blue signal 108. These three primary color signals are
The gamma correction is performed by an inverse gamma correction circuit 109, the frame is converted into a frame for a large screen provided by a frame memory 111 by a frame conversion circuit 110, and the display drive circuit 11
Feed to 2.

The display driving circuit 112 simultaneously sweeps each pixel in the vertical direction through a driving unit 113 for driving each column in the vertical direction of the screen, and sweeps each pixel in the vertical direction.
4 red LED 116, green LED 117, blue LED
An image is displayed by lighting 118.

As shown in FIG. 8, a large-sized image display device having such a configuration is a flat-type large-screen display device 201, a ceiling-type display device 202 having a plurality of display surfaces installed on a ceiling, or a plurality of display devices. The large display screen 209 is configured and used like a substantially circular large screen display device 203 in which a large display surface 209 is arranged at an angle so as to form a substantially circular arc surface in the horizontal direction.

[0006]

However, in the above-mentioned conventional large-sized image display device, the display surface is essentially flat, and even if the display surface is arranged in a substantially circular shape as in the substantially circular large-screen display device 203, each display surface is not provided. At the joint portion 209, the continuity of the image is broken and the joint is clearly visible. In addition, since each display surface is driven by a different driving device, there is a problem that it is difficult to maintain synchronization and color adjustment is different, and it is difficult to maintain uniformity of the screen.

The present invention solves such a problem. When a large screen having a curved surface is formed, a continuous image without screen breaks is displayed, and excellent synchronization and uniformity of color adjustment are achieved. It is an object of the present invention to provide a large-sized video device.

[0008]

According to the present invention, there is provided a large-screen video device comprising: a video display section in which red, green and blue light-emitting elements are pixels, and a plurality of the pixels arranged; It has a configuration in which a supply unit is provided, and the pixels are arranged along a curved surface.

With this configuration, it is possible to display a continuous image without screen breaks and to display a large image excellent in synchronization and uniformity of color adjustment.

Further, the large-sized image apparatus according to the present invention has a configuration in which the curved surface is inside the arcuate ceiling surface in the above-mentioned configuration. With this configuration, it is possible to form a large-sized image display surface having no break in the screen on a ceiling such as an arcade.

Further, the large-sized image apparatus according to the present invention has a configuration in which the curved surface is the inner surface of the cylindrical wall surface in the above configuration. With this configuration, it is possible to form a large image display surface having no break in the screen on the inner surface of the cylindrical wall surface.

Further, the large-sized image apparatus of the present invention has a configuration in which the curved surface is the outer surface of the cylindrical wall surface in the above-mentioned configuration. With this configuration, it is possible to form a large-sized image display surface having no break in the screen on the outer surface of the cylindrical wall surface.

Further, the large-sized image apparatus of the present invention has a configuration in which the curved surface is the inner surface of the spherical wall surface in the above configuration. With this configuration, it is possible to form a large-sized image display surface having no break in the screen on the inner surface of the spherical wall surface.

Further, the large-sized video device of the present invention has a configuration in which the curved surface is the outer surface of the spherical wall surface in the above-mentioned configuration. With this configuration, it is possible to form a large image display surface having no screen breaks on the outer surface of the spherical wall surface.

Further, the large-sized video device of the present invention has a configuration in which the spherical wall surface is divided into a plurality of blocks and a video signal is supplied in units of each divided block. With this configuration, the image projected on the spherical wall surface can be finely controlled.

Further, the large display device of the present invention has a display section in which red, green, and blue light emitting elements are used as pixels, and a plurality of the pixels are arranged, and means for supplying a color signal to the display section. The display section has a design arrangement. With this configuration, it is possible to freely control the color of each part of the image arranged in the design arrangement to obtain a desired design arrangement image.

Further, the large-sized display device according to the present invention has a configuration in which, in the above configuration, an image corresponding to the design arrangement is displayed by a combination of color signals. With this configuration, a desired design arrangement image can be obtained.

Further, the large-sized display device of the present invention has the above-mentioned configuration, wherein the design arrangement is a tree shape. With this configuration, it is possible to freely obtain images in various aspects of a tree.

Further, the large-sized display device of the present invention, in the above-mentioned configuration, has a configuration in which the design arrangement is an animal shape. With this configuration, it is possible to freely obtain images in various aspects of the animal.

Further, the large-sized display device of the present invention has a configuration in which the design arrangement is a building shape in the above-mentioned configuration. With this configuration, it is possible to freely obtain images in various aspects of the building.

[0021]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 (a) is a conceptual diagram of a large-sized video device according to Embodiment 1 of the present invention. An image display surface 313 is installed on the inner surface of the arc-shaped ceiling 310 such as an arcade installed as a rain shield or a sunshade on a street 311 of a shopping district or a downtown area. Image display surface 313
A pixel 308 in which light-emitting elements 309 such as LEDs that emit light in three primary colors of red, green, and blue are arranged in a delta shape,
A large number are arranged in the vertical and horizontal directions along the inner side surface of the ten. The video display surface 313 supplies the video input signal 302 from the display drive device 301 to each pixel column 305... 306 of the video display surface 313 by the drive unit 304.
As in the case described with reference to FIG.
The light emitting element 309 is swept while emitting light. As shown in FIG. 1B, this drive system includes a drive unit 315 that drives the pixel columns 314 in units of columns, and the display drive device 31.
6, and may be the same as the configuration shown in FIG. The spectator 307 can watch a large image by looking at the image display surface 313 overhead.

In this configuration, since a large number of pixels 308 are arranged in a curved surface and there is no break between the pixels, there is no discontinuity in the video display surface 313 due to the break. Further, since the light emission driving system of the image is performed by one display driving device 301, there is no deviation in synchronization or non-uniformity of color adjustment.

(Embodiment 2) FIG. 2 is a perspective view of a large-sized video apparatus according to Embodiment 2 of the present invention. In this embodiment mode, a pixel 402 is arranged vertically and horizontally on the inner surface of a circular wall without any break to form a large-sized circular image device 401.
In the video display, the video drive signal 40
6 is performed by performing a pixel sweep 405 on each column of the pixels 402 in the vertical direction by the drive unit 412, and an image is displayed on the circular internal display unit 408. The spectator 409 can watch a large image along the inner surface of the large circular display device 401.

When the display device end faces 410 and 411 are connected, seamless seamless video display can be performed over 360 degrees within the circle.

This embodiment is suitable for an indoor video display device such as a tourist facility or a display device for an amusement park.

(Embodiment 3) FIG. 3 is a perspective view of a large-sized video apparatus according to Embodiment 3 of the present invention. In the present embodiment, a large-sized circular video device 501 is formed by arranging pixels 502 vertically and horizontally on the outer surface of a cylindrical wall surface. Video display is performed by inputting a video input signal 507 to the display drive device 506 and performing a pixel sweep 505 on each column of the pixels 502 in the drive unit 509 in the vertical direction, and the video 511 is displayed on the circular display unit 508. . Audience 512
Can view a large image along the outer surface of the circular large display device 401.

This embodiment is suitable as a display device for an advertisement tower on the street, lightning news, traffic guidance display, or various entertainments.

(Embodiment 4) FIG. 4A is a perspective view of a large-sized video device according to Embodiment 4 of the present invention. In the present embodiment, the pixel 604 for displaying an image is
1 is a large-sized video device installed on the entire circumference or a part of the inner wall surface. In this embodiment mode, the display unit is divided into a plurality of display blocks 622, and each display block 622 is driven by the display block driving device 603 to display an image.

As shown in FIG. 4 (b), the display driving system
The signal from the display drive unit 613 controlled by U624 is divided for each display block 622 and supplied to the display block drive units 614,..., 616, and each display block drive unit 614,. Each of the pixels 617, 618,... Of each display block 622 into which 616 is divided.
620 is driven. Although the display block 622 and the display block driving device are divided from each other, since there is only one display driving device 613, there is no possibility that a deviation in synchronization or color adjustment occurs.

The spectator 608 enters through the entrance 610 and stands on the transparent floor surface 623 in the sphere 621 to watch the image of the sphere inside 360 degrees vertically and horizontally.

The temperature of the inside of the sphere 621 may rise due to heat generated from the display surface. However, ventilation holes can be provided on the ceiling surface 626 and the bottom surface 625 to prevent the inside of the sphere from becoming hot.

The present embodiment is suitable as a facility for simulating experience on the sea floor, in the sky, on vehicles, etc. by being installed in an amusement park or the like.

(Embodiment 5) FIG. 5 is a perspective view of a large-sized video apparatus according to Embodiment 5 of the present invention. This embodiment mode is a large-sized video device in which pixels 628 for displaying a video image are provided on the entire circumference or a part of the outer wall surface of a sphere.
In this embodiment mode, the display section is divided into a plurality of display blocks 632, and each display block 632 is driven by the display block driving device 633 to display an image. The display block driving device 633 is installed inside the sphere. Video 6
Reference numeral 28 is displayed on the surface of the large sphere display device 627, and the audience 639 can view an image from outside the sphere.
Other configurations are the same as those in FIG. 4 described in the fourth embodiment.

In this embodiment, too, the display block 63
2 and the display block driving device are divided from each other, but since there is only one display driving device 634, there is no risk of deviation in synchronization or color adjustment. (Embodiment 6) FIG. 6 is a perspective view of a large-sized video device according to Embodiment 6 of the present invention. In the present embodiment,
The object is to provide a design display device 701 that displays images by arranging pixels 702 in a design form. For example, by arranging the pixels 702 in a tree shape and displaying the trunk and branches in brown and the leaves in green, the tree itself can be displayed in a pseudo manner. The array of pixels may be either a flat surface or a curved surface, and they may be mixed.

Since the pixel color can be freely changed, fresh green,
Various states such as autumn leaves, falling leaves, and rime can be freely displayed by simply changing the video input signal 706 applied to the display driving device 707. So, for example,
In the spring, the buds of the leaves of the tree are formed, grow and reach fresh green,
A one-year tree cycle, in which flowers bloom and bear fruit, open leaves and fall in winter, can be expressed by adjusting video signals, and can be used as school teaching materials.

Also, by giving a decoration display 708 to each part of the tree as shown in FIG. 6, the tree can be used as a decoration tree.

The design shape is not particularly limited, and various designs such as animals and buildings other than trees are possible.

The design-type large-sized display device according to the present embodiment can be used in various ways such as a tool for a stage device, a display in a department store or a store, in addition to the teaching materials and decorations for schools described above.

[0040]

As described above, according to the present invention, by arranging the pixels constituted by the light-emitting members in a curved shape, it is possible to display a continuous image without a break in the screen. Also,
It is possible to obtain a large-sized video device excellent in synchronization and uniformity of color adjustment.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a large-sized video device according to a first embodiment of the present invention, where (a) is a perspective view and (b) is a circuit diagram of a driving system.

FIG. 2 is a perspective view of a large-sized video device according to a second embodiment of the present invention;

FIG. 3 is a perspective view of a large-sized video device according to a third embodiment of the present invention.

4A and 4B are conceptual diagrams of a large-sized video device according to a fourth embodiment of the present invention, in which FIG. 4A is a perspective view and FIG. 4B is a circuit diagram of a driving system.

FIG. 5 is a perspective view of a large-sized video device according to a fifth embodiment of the present invention.

FIG. 6 is a perspective view of a large-sized video device according to a sixth embodiment of the present invention;

FIG. 7 is a drive circuit diagram showing an example of a conventional large-sized video device.

FIG. 8 is a perspective view showing an example of a conventional large-sized video device.

[Explanation of symbols]

301, 406, 506, 602, 634, 707 Display driving device 302, 407, 507, 611, 635, 706 Video input signal 304, 411, 509 Driving unit 305, 306 Pixel column 308, 402, 502, 604, 628, 702 pixels 309 LED 310 Ceiling 313, 408, 508, 638 Image display unit 401, 501 Large circular display device 601, 627 Large spherical display device 603, 633 Display block drive circuit 621 Sphere 622, 632 Display block 701 Design display device

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) H04N 9/12 H04N 9/12 B

Claims (12)

[Claims] A red, green and blue light emitting element is defined as a pixel,
A large-sized video device comprising: a video display unit in which a plurality of the pixels are arranged; and means for supplying a video signal to the video display unit, wherein the pixels are arranged along a curved surface. 2. The large-sized video device according to claim 1, wherein the curved surface is inside a circular arc-shaped ceiling surface. 3. The large-sized video device according to claim 1, wherein the curved surface is an inner surface of a cylindrical wall surface. 4. The large-sized video device according to claim 1, wherein the curved surface is an outer surface of a cylindrical wall surface. 5. The large-sized video device according to claim 1, wherein the curved surface is an inner surface of a spherical wall surface. 6. The large-sized video device according to claim 1, wherein the curved surface is an outer surface of a spherical wall surface. 7. The large-sized video device according to claim 1, wherein the spherical wall surface is divided into a plurality of blocks, and a video signal is supplied for each divided lock unit. . 8. A pixel comprising red, green and blue light emitting elements,
A large-sized display device, comprising: a display unit in which a plurality of the pixels are arranged; and a unit for supplying a color signal to the display unit, wherein the display unit is arranged in a design. 9. The large display device according to claim 8, wherein an image corresponding to a design arrangement is displayed by the combination of the color signals. 10. The large-sized display device according to claim 8, wherein the design array has a tree shape. 11. The large display device according to claim 8, wherein the design arrangement is an animal shape. 12. The large display device according to claim 8, wherein the design arrangement is a building shape.