KR19980012817U - Convergence measurement and adjustment device that can be adjusted and calibrated - Google Patents

Abstract

The present invention relates to a convergence measurement and adjustment device, and more particularly, to a convergence measurement and adjustment device capable of unifying adjustment and correction so that the same convergence and regular convergence adjustment and correction operations can be performed at one location.

The convergence measurement and adjustment device of the present invention includes a water pipe power supply device 10 for supplying predetermined water pipe power to the water pipe of the receiver 11, and a predetermined pattern to output a predetermined pattern to the water receiver 11. An apparatus for measuring and adjusting the convergence of a receiver, including a pattern generator for generating a pattern, the apparatus comprising: an operation unit 15 for selecting a measurement area for measuring a convergence state of the receiver 11, and the receiver 11 A camera unit 12 including a plurality of cameras photographing each corresponding pattern outputted by the operation signal of the controller 14 and outputting the signal to the signal processing unit 13, and digitally outputting a signal from the camera unit 12. The signal processor 13 to the specific camera of the signal processor 13 corresponding to the measurement area 13 of the receiver 11 selected by the manipulation unit 15 and outputted to the controller 14 after being converted to The operation signal is output via And a control unit 14 for outputting a digital signal input from the signal processing unit 13 to the monitor 16, and a monitor 16 for displaying a convergence state on the screen with a signal from the control unit 14; Configure.

Description

Convergence measurement and adjustment device that can be adjusted and calibrated

The present invention relates to a convergence measurement and adjustment device, and more particularly, to a convergence measurement and adjustment device capable of unifying adjustment and correction so as to perform the adjustment and correction operations of the same and the constant convergence.

In general, an image reproduced in a color receiving tube is colored on the monitor and becomes unsightly if the images of three primary colors of red (R), green (G), and blue (B) do not overlap correctly. In order to completely overlap the images of the three colors, the electron beam must be converged on the entire scanning surface. To do this, it is necessary to concentrate the beam at the center of the fluorescent surface with a direct convergence adjustment, that is, a DC magnetic field (PCM 4, 6 poles) of the convergence yoke (CY: Convergence Yoke). The alternating magnetic field (deflection yoke: DY) compensates for beam concentration at the periphery

Looking at the causes of color deviation by emitting three points separately from the fluorescent surface, the radius of curvature of the crown of the receiving tube or the shadow mask is greater than the distance to the deflection center of the electron beam, so that three electron beams are formed at the center of the shadow mask. This is because focusing is performed at the front of the shadow mask at the periphery of the shadow mask.

In order to adjust such convergence, it is necessary to first measure the convergence.

A configuration of a conventional technique, generally related to the technique, is shown in FIG. 1, and referring to FIG. 1, three electron beams from the three electron guns of the water tube are respectively landed (1) on the phosphor of the receiver. After adjusting the convergence (2) while watching the landing receiver, and adjusting the convergence (3) in the next working step, and then correcting the convergence over the convergence and the entire convergence (4). The final inspection is completed through the steps.

In the conventional convergence measurement operation, the measurement and adjustment of the CRT or the water pipe are divided into multiple stages according to each adjustment item. At each measurement and adjustment position, the operator displays the red (R) color on the cathode ray tube monitor. , Green (G), Blue (B) Cross hatch pattern is enlarged with the camera to adjust the convergence while the naked eye. The total dependence on the operator's vision makes it easy for the operator to feel fatigue and to measure and adjust the convergence. In addition to the large dispersion, there was a problem that the failure rate of the cathode ray tube is increased.

Solving the above problems is a technical problem to be achieved of the present invention, and as a technical means for achieving such a technical problem, the convergence measuring and adjusting device of the present invention is a predetermined receiving pipe in the receiving tube of the receiver. An apparatus for measuring and adjusting positive and dynamic convergence of a receiver, including a water pipe power supply for supplying power, and a pattern generator for generating a predetermined pattern to output a predetermined pattern to the receiver. An operation unit for selecting a measurement area for measuring a convergence state of the signal; A camera unit including a plurality of cameras photographing the corresponding patterns output to the receiver by an operation signal of a controller and outputting them to a signal processor; A signal processor converting the signal from the camera unit into digital and outputting the digital signal to the controller; A control unit for outputting an operation signal in the case of a signal processing unit to a specific camera of a camera unit corresponding to the receiver measurement area selected by the operation unit, and outputting a digital signal input from the signal processing unit to a monitor; And a monitor configured to display a convergence state on a screen using a signal from the controller.

1 is a block diagram illustrating a conventional method of measuring and adjusting convergence.

2 is a block diagram showing the configuration of the convergence measurement and adjustment device according to the present invention.

3 is a view showing a state in which a plurality of cameras installed in the water receiver and the front portion shown in FIG.

4 is a view showing a convergence state output to the monitor shown in FIG. 2, (a) is a view showing a positive convergence state, (b) is a view showing a part of the same convergence state, (c) A diagram showing another part of the same convergence state for correction.

* Description of the symbols for the main parts of the drawings *

10: water pipe power supply device 11: receiver

12: camera unit 13: signal processing unit

14 control unit 15 operation unit

16: monitor

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the convergence measurement and adjustment apparatus capable of adjustment and correction according to the present invention will be described.

2 is a block diagram showing the configuration of the convergence measuring and adjusting device according to the present invention, and FIG. 3 is a view showing the state of installation of a plurality of cameras and a front part thereof in FIG. 2, and FIG. 2 is a view showing a convergence state output to the monitor shown in FIG. 2, (a) is a view showing a positive convergence state, (b) is a view showing a part of the same convergence state, (c) is a view for correction A diagram showing another part of the convergence state.

Referring to FIG. 2, the convergence measuring and adjusting apparatus of the present invention includes a water pipe power supply device 10 for supplying predetermined water pipe power to the water pipe of the water receiver 11, and a predetermined pattern on the water receiver 11. An apparatus for measuring and adjusting the convergence of a receiver, including a pattern generator for generating a predetermined pattern to output a cross hatch pattern (eg, a cross hatch pattern), the measuring region for measuring the convergence state of the receiver 11 Camera unit 12 including a plurality of cameras for selecting the operation unit 15 and the corresponding pattern output to the receiver 11 by the operation signal of the control unit 14 to output to the signal processing unit 13 And a signal processing unit 13 for converting a signal from the camera unit 12 to digital and then outputting the signal to the control unit 14, and a camera corresponding to the receiver 11 measuring area selected by the operation unit 15. With specific camera of part 12 A control unit 14 for outputting an operation signal via the signal processing unit 13 and outputting a digital signal input from the signal processing unit 13 to the monitor 16, and as a signal from the control unit 14; The monitor 16 which displays a convergence state on a screen is comprised.

Referring to FIG. 3, the camera unit 12, which is installed at a predetermined distance from the receiver 11, is installed as shown in FIG. 3 in the arrangement of nine cameras ① to ⑨ in a 3 × 3 arrangement. ① of the camera included in the camera unit 12 is for measuring the constant convergence, ②, ③, ④, ⑤ is for the partial measurement of the same convergence, ⑥, ⑦, ⑧, ⑨ for the other convergence measurement for the calibration operation Install it.

Referring to FIG. 4, FIG. 4 is a view showing a convergence state output to the monitor 16. FIG. 4 (a) is a positive convergence state measured by the camera ① of FIG. 3, and FIG. ) Is the same state of convergence measured by cameras ②, ③, ④, ⑤ of FIG. 3, and FIG. 4 (c) shows the same state of convergence measured by cameras ⑥, ⑦, ⑧, ⑨ of FIG. It is an illustration.

Operation according to the device of the present invention configured as described above will be described in detail below based on the accompanying drawings.

2 and 4, the present invention will be described in detail. First, when measurement and adjustment are selected through the operation unit 15 and then positive convergence measurement is selected, the control unit 14 selects the operation unit 15. When the convergence measurement and adjustment operation is started and the operation signal is sent to the corresponding camera ① of the camera unit 12 through the signal processing unit 13, the camera ① is operated to photograph the positive convergence state of the receiver 11. The signal output from the camera ① is converted into a digital signal by the signal processor 13 and then transmitted to the controller 14. The controller 14 outputs the signal from the signal processor 13 to the monitor 16 as shown in FIG. As described above, the positive convergence state is precisely adjusted by adjusting the 4-pole and 6-pole PCM which are DC magnetic fields while watching the positive convergence output to the monitor 16.

After the measurement and adjustment of the positive convergence state is completed as described above, if the measurement and adjustment of the same convergence state for the receiver 11 can be performed in the same manner as described above, the operation unit 15 is moved to the operation unit 15. When a part of the convergence state is selected, the control unit 14 transmits an operation signal to the corresponding cameras ②, ③, ④, and ⑤ of the camera unit 12 through the signal processing unit 13 according to the selection of the manipulation unit 15. At the same time, the cameras ②, ③, ④ and ⑤ are operated to photograph and output the same convergence state of the receiver 11, respectively, and output the signals output from the cameras ②, ③, ④ and ⑤. ) Is converted into a digital signal and then transmitted to the control unit 14. The control unit 14 outputs the signal from the signal processing unit 13 to the monitor 16 as shown in FIG. In this way, while watching the same convergence outputted to the said monitor 16, the deflection yoke DY which is the said alternating magnetic field is adjusted, and a specific dynamic convergence state is adjusted.

In addition, in the same manner as described above, when the other part of the same convergence state is selected by the operation unit 15, the control unit 14 performs a camera unit through the signal processing unit 13 according to the selection of the operation unit 15. When the operation signals are simultaneously sent to the cameras ⑥, ⑦, ⑧, ⑨ of 12), the cameras ⑥, ⑦, ⑧, ⑨ are operated to photograph and output the corresponding convergence states of the receiver 11, respectively. The signal output from (6), (7), (8), (9) is converted into a digital signal by the signal processor (13), and then transmitted to the controller (14). The control unit 14 outputs the signal from the signal processing unit 13 to the monitor 16 as shown in FIG. In this way, the correction operation is performed while watching the convergence output to the monitor 16.

If the convergence state of the corners (⑥, ⑦, ⑧, ⑨) of the receiver is not good, the correction is performed using a correction tool.

According to the present invention as described above, by unifying the adjustment and correction of the convergence and the constant convergence in one position, not only can the measurement and adjustment of the convergence be performed quickly and accurately, but also the productivity improvement can be achieved. It has a special effect.

The above description is only a description of an embodiment of the present invention, and the present invention is capable of various changes and modifications within the scope of its configuration.

The purpose of the present invention is to unify the adjustment and correction of the convergence and the constant convergence in one place, so that the measurement and adjustment of convergence can be performed quickly and accurately, as well as the convergence measurement and the productivity improvement can be achieved. To provide an adjustment device.

Claims (1)

A water pipe power supply device 10 for supplying predetermined water pipe power to the water pipe of the receiver 11, and a pattern generator for generating a predetermined pattern to output a predetermined pattern to the water receiver 11; In the apparatus for measuring and adjusting the An operation unit for selecting a measurement area for measuring a convergence state of the receiver 11; A camera unit 12 including a plurality of cameras photographing the corresponding patterns output to the receiver 11 by operation signals of the controller 14 and outputting them to the signal processor 13; A signal processor (13) for converting the signal from the camera unit (12) into digital and then outputting the signal to the controller (14); The operation signal is output via the signal processing unit 13 to a specific camera of the camera unit 12 corresponding to the receiver 11 measurement area selected by the operation unit 15, and is input from the signal processing unit 13. A control unit 14 for outputting a signal to the monitor 16; And, And a monitor (16) for displaying a convergence state on the screen with a signal from the control unit (14).