JPH1050220A - Adjusting device for color cathode-ray tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform adjustment work in a simplified, speedy manner by calculating operation of comparing data obtained by processing image signals taken through a camera with reference data, and using resultant outputs to display on a monitor how to operate a convergence purity magnet(CPM). SOLUTION: A signal generator 3 cause a cathode-ray tube 1 having a convergence purity magnet 2b to display a specified pattern image for adjusting purity and convergence. A color camera takes the image displayed on the cathode-ray tube 1 and generates image signals. A processing device 5 processes the image signals to separate them into three primary color signals. A first monitor 6 displays the output from the processing device 5. A comparative calculation operation device 8 compares the output from the processing device 5 with the output from a reference data section 7, and determines which pattern of the reference data of the latter agrees with the output of the former. According to the result, one of preset operations of the CPM 2b is selected and displayed on a second monitor 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color cathode ray tube adjusting device, and more particularly to an adjusting device provided with a monitor for displaying a method of operating a convergence purity magnet (hereinafter referred to as CPM).

[0002]

2. Description of the Related Art As shown in FIG. 2, a conventional CPM adjusting device for a color cathode ray tube comprises a deflection yoke 2a and a CPM 2b.
And a signal generator 3 for displaying a predetermined pattern image for adjusting purity and convergence on a screen of the color cathode ray tube 1 equipped with the image pickup device, and imaging a screen displayed on the color cathode ray tube 1 to generate a video signal. Color camera 4
And a processing device 5A for processing the video signal and separating it into three primary color signals, and a monitor 6B for displaying the output of the processing device 5A. By turning the two-pole, four-pole, and eight-pole magnet knobs of the CPM 2b, adjustment was made to obtain desired purity and convergence.

[0003]

By the way, a conventional CPM adjusting device of a color cathode ray tube processes a video signal picked up by a color camera 4 with a processing device 5A and adjusts a monitor 6B when adjusting the CPM. , The specific adjustment position and direction of the CPM 2b are unknown, and the knowledge and experience of the operator is required. When the experience of the worker is shallow, the adjustment time is particularly long. There was a disadvantage that it would. SUMMARY OF THE INVENTION It is an object of the present invention to provide a device capable of performing adjustment easily and quickly even when the experience of a worker is inexperienced by displaying a specific adjustment position and direction on a dedicated monitor when adjusting the CPM. It is to be.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides data obtained by processing a video signal picked up by a color camera by a processing device and a reference data section stored in advance as reference data. Is compared with the comparison operation device, and an operation method indicating a specific adjustment position and direction of the CPM is displayed on a monitor based on the output.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a color cathode ray tube adjusting apparatus according to an embodiment of the present invention. The function and operation of each unit will be described with reference to FIG. In the figure, 3
Is a signal generator for displaying a predetermined pattern image for adjusting purity and convergence on the screen of the cathode ray tube 1 on which the deflection yoke 2a and the convergence purity magnet (CPM) 2b are mounted, and 4 is displayed on the cathode ray tube 1. A color camera that captures an image and generates a video signal, 5 is a processing device that processes the video signal and separates it into three primary color signals, 6 is a first monitor that displays the output of the processing device 5, and 7 is one. One color signal is shifted to another color signal by a preset amount to form a plurality of patterns, and the pattern signal is compared with the output of the reference data unit 7. It is a second monitor that displays an operation method of the CPM 2b based on the second monitor.

[0006] Then, the comparison arithmetic unit 8 is connected to the processing unit 5.
Is compared with the output of the reference data section 7 and the processing device 5
Is determined, the pattern of the reference data section 7 is matched with the reference data of the pattern. Based on the result, a preset operation method of the CPM 2b is selected and displayed on the second monitor 9.

According to this embodiment, since the operation method of the CPM 2b is displayed on the second monitor 9, there is an advantage that instructions to the worker are clear and no experience is required.

[0008]

As described above, according to the present invention, when the CPM of the color cathode ray tube is adjusted, the adjustment portion and the adjustment direction of the CPM are displayed on a dedicated monitor.
This has the effect of shortening the adjustment time and improving the adjustment accuracy.

[Brief description of the drawings]

FIG. 1 is a block diagram of an apparatus for adjusting a color cathode ray tube according to an embodiment of the present invention;

FIG. 2 is a block diagram of a conventional color cathode ray tube adjusting device.

[Description of Signs] 1 Color cathode ray tube 2a Deflection yoke 2b Convergence purity magnet (CPM) 3 Signal generator 4 Color camera 5 Processing device 6 First monitor 7 Reference data section 8 Comparison operation device 9 Second monitor

Claims (2)

[Claims] 1. A signal generator for displaying a predetermined pattern image on a screen of a color cathode ray tube equipped with a deflection yoke and a convergence purity magnet, and a color camera for capturing a displayed pattern image and generating a video signal. A processing device for separating the video signal into three primary color signals, a first monitor for displaying the output of the processing device, and shifting one color signal to another color signal by a predetermined amount. A reference data section storing the pattern signal as reference data, a comparison operation apparatus for comparing the output of the processing apparatus with the output of the reference data section, and an output of the comparison operation apparatus. An adjustment device for a color cathode ray tube, comprising: a second monitor for displaying a method of operating a convergence purity magnet. 2. A comparison operation device compares an output of the processing device with an output of a reference data portion to determine which pattern of the reference data portion matches the output of the processing device.
2. The color cathode ray tube adjusting device according to claim 1, wherein a preset operation method of the convergence purity magnet is selected and displayed on a second monitor according to the result.