JPH05292515A - Coloring device for color image display - Google Patents

Abstract

PURPOSE:To simply and inexpensively manufacture the coloring device by adhering a color film or printing a color on the approximately conical surface of a conical transparent base. CONSTITUTION:In a roughly conical base 10 made of a transparent material, on each surface obtained by dividing its conical surface into three equal parts on the periphery, transparent color films 11a, 11b and 11c of red, green and blue are adhered from the direction of an arrow mark by using a transparent tape, a transparent adhesive agent, etc. In such a way, a coloring device is formed. This coloring device is rotated around the center axis as the rotating center. In this coloring device since the base itself is transparent, rays of light of color of its coloring part which transmits through the coloring part on the conical base cause monochromatic image to be colored.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coloring device for a color image display device which is arranged in front of a monochrome image displayed on, for example, a monochrome cathode-ray tube and is rotated and driven to color the monochrome image. .

[0002]

2. Description of the Related Art FIG. 3 is a diagram showing the configuration of a color image display device using a conventional coloring device. In the figure, 1 is a cathode ray tube display device (hereinafter, CR) that displays a monochrome image by a luminance signal Y, a horizontal synchronizing signal H, and a vertical synchronizing signal V.
2 is a coloring device including three color filters of red (R), green (G), and blue (B) in a region obtained by dividing a circle into three equal parts as shown in FIG. 4, and 3 is a coloring device. 2 is a drive motor that rotates 2. A rotation sensor 4 detects a predetermined rotation phase of the coloring device 2 and outputs a rotation synchronization pulse P.
Input the R, G, B color signals corresponding to the green and blue color filters, and set the R, G, B color signal to 1 by the switching signal S.
A signal switching device for selecting one of them and outputting it to the CRT 1 is a control device for controlling the drive motor 3 and the signal switching device 4 by the vertical synchronizing signal V of the video signal and the rotation synchronizing pulse P from the rotation sensor 4.

Next, the operation will be described. Control device 6
Is a signal obtained by dividing the vertical synchronization signal V by 3 and a rotation synchronization pulse P from a rotation sensor 4 for detecting the rotation phase of the coloring device 2.
Controls the rotation of the drive motor 3 so as to maintain a constant phase relationship. Therefore, the coloring device 2 rotates one-third in one field of the input video signal, and arranges any one of red, green, and blue color filters in front of the monochrome image of one field of the CRT 1.

With respect to the above-mentioned phase relationship, at the timing of the vertical synchronizing signal V, a portion of the coloring device 2 for red, green, or blue, for example, a portion below the center of the red color filter is C.
If you set it so that it is located at the top of the screen of RT1, CRT
As the scan line 1 advances from the top to the bottom of the screen, the red color filter of the coloring device 2 also rotates and moves in the same direction, and the red color filter can be rotated so that it is always on the scan line of the CRT 1. .

The color filter of the coloring device 2 is a CRT.
Since the light from the monochrome image of No. 1 can be transmitted, the monochrome image of the CRT 1 is colorized.

[0006]

Since the conventional coloring device for the color image display device is constructed as described above, it is necessary to use the non-flexible color filters colored in the three primary colors. It was complicated and expensive.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a coloring device for a color image display device, which can be easily manufactured and can be manufactured with high precision at low cost.

[0008]

A coloring device for a color image display device according to the present invention is a translucent film of each of the three primary colors on a surface obtained by dividing a conical surface of a transparent, substantially conical base into three on its circumference. Is attached, or each of the three primary colors is printed with transparency.

[0009]

In the coloring device for a color image display device according to the present invention, since the base itself is transparent, the light of the color of the colored portion that has passed through the colored portion on the conical surface of the base colorizes the monochrome image.

[0010]

EXAMPLES Example 1. FIG. 1 is a diagram showing the configuration of a coloring device for a color image display device according to an embodiment of the present invention.
In FIG. 1, a substantially conical base 1 made of a transparent material.
At 0, on each surface that divides the conical surface into three equal parts on its circumference,
Red, green, and blue translucent color films 11a, 11b, 11
By adhering c from the direction of the arrow in the drawing with a transparent tape, a transparent adhesive or the like, a coloring device can be formed. This coloring device can be used in place of the coloring device 2 shown in FIG. 3 by being rotationally driven about the axis.

Embodiment 2. FIG. 2 is a perspective view of a coloring device for a color image display device according to another embodiment of the present invention.
In FIG. 2, a substantially conical base 1 made of a transparent material.
At 0, on each surface that divides the conical surface into three equal parts on its circumference,
The printing unit 12 is provided in which red, green, and blue are translucently printed. In this embodiment, there is an advantage that the positional accuracy of the color arrangement of the printing unit 12 is improved and the surface is free from dirt and dust.

[0012]

As described above, according to the present invention, since the color film is attached or color-printed on the conical surface of the substantially conical transparent base, there is an effect that the manufacturing is easy and the cost is low. .

[Brief description of drawings]

FIG. 1 is a diagram for explaining a coloring device for a color image display device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a coloring device according to another embodiment of the present invention.

FIG. 3 is a diagram showing a configuration of a conventional color image display device.

FIG. 4 is a diagram for explaining a conventional coloring device for a color image display device.

[Explanation of reference numerals] 10 base 11a to 11c color film 12 printing unit

Claims (1)

[Claims] 1. A coloring device for a color image display device, which is rotatably driven in front of a monochrome moving image in synchronization with a vertical synchronizing signal to colorize the monochrome moving image, wherein a cone-shaped base of a substantially conical transparent base is provided. A coloring device for a color image display device, characterized in that a translucent color filter of each of the three primary colors is attached to a surface divided into three parts on the circumference, or each of the three primary colors is printed with translucency.