JPH11149260A - Large image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide appearance of a picture element of excellent color mixing property between lateral neighboring picture element units. SOLUTION: Picture element units 13 with three light emitting elements arranged laterally with a prescribed interval for emitting tree primary colors are arranged in a matrix form by line numbers ×holizontal picture element numbers to constitute a displaying screen 11. A picture element appears between the picture element units 13 neighboring each other in the line direction of the displaying screen 11 utilizing the neighboring three light emiting elements R, G, B out of the elements R, G, B of the picture element units 13.

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 installed at various places such as sports facilities, event facilities, and building walls.

[0002]

2. Description of the Related Art FIG.
This will be described with reference to FIGS. FIG. 4 is an external view of a large-sized video display device. The large-sized video display device 41 has a display screen 42 having a size of 5.12 m × 3.84 m, for example.
It is installed on the front part of the housing 43. Display screen 4
No. 2 is configured by arranging pixel units 44 in a matrix in the number of lines × the number of horizontal pixels corresponding to the number of effective scanning lines of the video signal.

FIG. 5A is a front view of a pixel unit 44 showing a part of a display screen 42 in an enlarged scale. Each pixel unit 44 is provided with a structure shown in FIG.
As shown in (b), three light emitting elements R, G, and B of three primary colors of light, red (R), green (G), and blue (B), are positioned at each vertex of an equilateral triangle and are adjacent to each other. It is composed of those that are arranged.

FIG. 6A is a front view showing another example of the pixel unit 44 in which a part of the display screen 42 is enlarged, and the pixel unit 44 in this example is the same as FIG.
As shown in (b), the light-emitting element array 44a, in which four R, G, and B light-emitting elements are vertically arranged in a striped manner, are arranged in three rows at predetermined intervals in the horizontal direction. Further, in order to improve the color mixing of RGB of the pixel, the same number of R, G, and B light emitting elements are uniformly dispersed.

[0005] If such a large image display device 41 is installed in, for example, a sports facility, it can be used for various purposes such as live-TV broadcast of the competition, introduction of players by close-up, score display according to each competition, and reproduction of the scene of interest. It can effectively produce sports scenes with various functions. In addition, by using an LED (light emitting diode) as a light emitting element, a large image display device having features such as long life, low power consumption, light weight, and thinness can be provided. Further, by using the arrangement of the RGB light emitting elements of the pixel unit shown in FIG. 5B or FIG. 6B, the color mixing of the pixels can be improved.

[0006]

In the conventional large-sized image display device as described above, since the RGB light emitting elements of the pixel unit have the arrangement structure shown in FIG. 5B or FIG. Are improved, but the pixel units 4 adjacent to each other in the horizontal direction
No pixel can appear between 4,44.

Therefore, for example, on the display screen 42 shown in FIG. 5A, when an oblique line extending downward and rightward from the upper left end of the screen is to be displayed, the oblique line 45 is indicated by hatching. The image is displayed by the pixel units 42 in the first and second rows in the first column of the display screen 42 and the pixel units 42 in the third and fourth rows in the second column. As a result, a step corresponding to the arrangement pitch of the pixel units 42 occurs in the oblique line 45, and there is a disadvantage that the clarity of the display of the oblique line is reduced.

Similarly, a display screen 4 shown in FIG.
When an oblique line extending from the upper left end to the lower right is displayed on the display screen 2, the display screen 42 is displayed as shown by hatching.
Pixel units 44 in the first and second rows of the first column
The oblique lines 46 are displayed by the pixel units 44 in the third and fourth rows in the column, but as in the case of FIG.
A step corresponding to the arrangement pitch of the pixel units 44 also occurs in the oblique line 46, and there is a problem that the clarity of the display of the oblique line is reduced.

The present invention has been made to solve such a conventional problem, and enables the appearance of pixels having good color mixing between adjacent pixel units in the horizontal direction, and clearly displays oblique lines. It is an object of the present invention to provide a large-sized image display device capable of performing the above-described operations.

[0010]

According to the present invention, there is provided a pixel unit in which three light emitting elements for emitting light of three primary colors are arranged in a horizontal direction at a predetermined interval.
The pixel units are arranged in a matrix by the number of lines × the number of horizontal pixels to form a display screen, and between adjacent pixel units in the line direction of the display screen, three adjacent light emitting elements of the light emitting elements of both pixel units are arranged. The configuration is such that a pixel can appear using one light emitting element.

According to the present invention, pixels with good color mixing can appear between adjacent pixel units in the horizontal direction, and oblique lines can be clearly displayed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A large-sized image display device according to claim 1 of the present invention has a pixel unit in which three light-emitting elements for emitting light of three primary colors are arranged in a horizontal direction at a predetermined interval, and the pixel unit. Are arranged in a matrix in the number of lines × horizontal pixels to form a display screen, and between adjacent pixel units in the line direction of the display screen, three adjacent light emitting elements of the light emitting elements of both pixel units are arranged. The configuration is such that a pixel can be made to appear using the above.

According to a second aspect of the present invention, the three light emitting elements are composed of red, green and blue light emitting elements.

According to the present invention, three of the light emitting elements of the pixel units adjacent to each other in the line direction of the display screen are adjacent to each other.
By using two light emitting elements, pixels can appear in adjacent pixel units, whereby the oblique lines displayed on the display screen become smooth lines, and the oblique lines can be clearly displayed. .

According to a third aspect of the present invention, there is provided a large-sized image display device in which a plurality of three light-emitting elements for emitting light of three primary colors are vertically arranged in a stripe shape for each color.
And a pixel unit in which the light-emitting element rows are arranged in a horizontal direction at a predetermined interval, and the pixel units are arranged in a matrix by the number of lines × horizontal pixels to form a display screen. Pixels can be made to appear between adjacent pixel units by using three adjacent light emitting element columns of the first to third light emitting element columns of both pixel units.

According to a fourth aspect of the present invention, the light-emitting elements emitting the three primary colors are composed of red, green, and blue light-emitting elements.

According to the present invention, three adjacent light emitting element arrays among the first to third light emitting element arrays of the pixel units adjacent to each other in the line direction of the display screen are used to connect the adjacent pixel units. Thus, the pixels can appear on the display screen, whereby the oblique lines displayed on the display screen become smooth lines, and the oblique lines can be clearly displayed.

FIG. 1 shows an embodiment of the present invention.
This will be described with reference to FIG.

(Embodiment 1) FIG. 1 is an external view showing Embodiment 1 of a large-sized image display device according to the present invention. In FIG. 1, a large-sized image display device 10 has a display screen 11 having a size of, for example, 5.12 m × 3.84 m.
2 is installed in the front part. Also, the display screen 11
It is configured by arranging pixel units 13 of a number of lines × the number of horizontal pixels corresponding to the number of effective scanning lines of a video signal in a matrix.

FIG. 2A is a front view of a display screen 11 constituting the large-sized image display device 10, in which the pixel unit 13 is arranged in a matrix in the matrix direction by the number of lines × the number of horizontal pixels corresponding to the number of effective scanning lines. Are arranged.

As shown in FIG. 2B, the pixel unit 13 has three primary colors of light, red (R), green (G), and blue (B).
Are arranged in the horizontal direction at predetermined intervals.

Thus, between the adjacent pixel units 13 and 12 in the line direction of the display screen 11, the three adjacent light emitting elements R and G of the light emitting elements R, G and B of the two pixel units 13 and 13 are arranged. The configuration is such that pixels with good color mixing of RGB can appear using G and B.

In the large-sized image display device configured as described above, when an oblique line extending from the upper left end to the lower right is displayed on the display screen 11, as shown by hatching in FIG. The light-emitting elements R, G, and B of the pixel unit 13 in the first column on the first column in the screen 11 are operated, and the light-emitting elements G, B, and 2 in the pixel unit 13 in the second row in the first column are further operated.
The light emitting element R of the pixel unit 13 in the second row of the column is operated, and the light emitting element B of the pixel unit 13 in the third row of the first column and the pixel unit 13 of the third row in the second column are turned on. By operating the light emitting elements R and G and further operating the light emitting elements R, G and B of the pixel unit 13 in the second column and the fourth row, the oblique line 14 can be displayed. The image processing at this time includes R
This becomes possible by shifting the GB sampling position for each color.

With such a configuration, pixels in which RGB are mixed can appear between adjacent pixel units 13 in the line direction. Therefore, the oblique lines 14 displayed on the display screen 11 are not continuous. It becomes a certain smooth line, and the oblique line 14 can be clearly displayed.

(Embodiment 2) FIG. 3A is an enlarged front view showing a part of a display screen according to Embodiment 2 of the present invention. In the figure, a display screen 11 constituting a large-sized video display device is configured by arranging pixel units 23 in a matrix in the row / column direction by the number of lines × the number of horizontal pixels corresponding to the number of effective scanning lines. .

The pixel unit 23, as shown in FIG. 3B, has three primary colors of light, green (G), red (R), and blue (B).
The first to third light emitting element rows 23G, 23R, and 23B, each of which has a plurality (four pieces) of light emitting elements G, R, and B arranged in a vertical direction for each color, are arranged at predetermined intervals. It is configured by arranging in the direction. This allows
Pixel units 2 adjacent to each other in the line direction of the display screen 11
3 and 23, the three adjacent light emitting element rows 23G, 23R, and 23B of the first to third light emitting element rows 23G, 23R, and 23B of the pixel units 23 and 23 are used. The configuration is such that pixels with good color mixing can appear.

In the large-sized image display device configured as described above, when an oblique line extending from the upper left end to the lower right is displayed on the display screen 11, as shown by hatching in FIG. The light-emitting element columns 23G, 23R, and 23B of the pixel units 23 in the first row and the first column of the display screen 11 are operated, and the pixel units 23 in the second row and the first column are further operated.
The light emitting element columns 23R and 23B of the second column and the light emitting element column 23G of the pixel unit 23 in the second row of the second column are operated.
Light emitting element column 23B of the pixel unit 23 in the third row of the column
And the light emitting element column 2 of the pixel unit 23 on the third row in the second column
By operating 3G, 23R and operating the light emitting element columns 23G, 23R, 23B of the pixel unit 23 in the second column, fourth row, the oblique line 24 can be displayed. At this time, image processing can be performed by shifting the RGB sampling position for each color.

By adopting such a configuration, pixels in which RGB are mixed can appear between adjacent pixel units 23 in the line direction. Therefore, the oblique lines 24 displayed on the display screen 11 have continuous lines. It becomes a certain smooth line, and the oblique line 24 can be clearly displayed.

The three light-emitting elements that emit the three primary colors in the present invention are not limited to red (R), green (G), and blue (B) light-emitting elements.

[0030]

As described above, according to the large-sized image display device of the present invention, pixels having good color mixing can appear between pixel units adjacent to each other in the line direction that constitute the display screen. Diagonal lines displayed on the display screen can be made continuous and smooth lines,
Oblique lines can be clearly displayed.

[Brief description of the drawings]

FIG. 1 is a first embodiment of a large-sized image display device according to the present invention;
The external view showing

FIG. 2A is an enlarged front view of a part of a display screen according to Embodiment 1 of the present invention, and FIG. 2B is a front view of a pixel unit;

FIG. 3A is an enlarged front view of a part of a display screen according to a second embodiment of the present invention, and FIG. 3B is a front view of a pixel unit;

FIG. 4 is an external view of a conventional large-sized image display device.

FIG. 5A is an enlarged front view of a part of a conventional display screen, and FIG. 5B is a front view of a pixel unit.

FIG. 6A is an enlarged front view of a part of a conventional display screen, and FIG. 6B is a front view of a pixel unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Large-sized image display apparatus 11 Display screen 12 Case 13 Pixel unit 14 Diagonal line 23 Pixel unit 23G, 23R, 23B Light emitting element row 24 Diagonal line R, G, B Light emitting element

Claims (4)

[Claims] 1. A pixel unit in which three light emitting elements for emitting light of three primary colors are arranged in a horizontal direction at a predetermined interval, and the pixel units are arranged in a matrix of the number of lines × the number of horizontal pixels to form a display screen. And between the adjacent pixel units in the line direction of the display screen, a pixel can appear using three adjacent light emitting elements of the light emitting elements of both pixel units. Large image display device. 2. The large-sized image display device according to claim 1, wherein the three light-emitting elements include red, green, and blue light-emitting elements. 3. A first to a third light emitting element row in which a plurality of three light emitting elements that emit light of three primary colors are vertically arranged in a stripe shape for each color are arranged in a horizontal direction at a predetermined interval. A pixel unit, and a display screen is configured by arranging the pixel units in a matrix of the number of lines × the number of horizontal pixels, and a first to a first one of the two pixel units are arranged between adjacent pixel units in the line direction of the display screen. A large-sized video display device characterized in that a pixel is made to appear using three adjacent light emitting element rows among the three light emitting element rows. 4. The large-sized image display device according to claim 2, wherein the light-emitting elements that emit the first to third primary color lights include red, green, and blue light-emitting elements.