KR960013551B1 - Circuit for compensating earth magnetic deflection - Google Patents

Circuit for compensating earth magnetic deflection Download PDF

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Publication number
KR960013551B1
KR960013551B1 KR1019940001310A KR19940001310A KR960013551B1 KR 960013551 B1 KR960013551 B1 KR 960013551B1 KR 1019940001310 A KR1019940001310 A KR 1019940001310A KR 19940001310 A KR19940001310 A KR 19940001310A KR 960013551 B1 KR960013551 B1 KR 960013551B1
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South Korea
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correction amount
deflection
correction
ray tube
cathode ray
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KR1019940001310A
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Korean (ko)
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KR950024598A (en
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이용형
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삼성전자 주식회사
김광호
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/29—Picture reproducers using cathode ray tubes using demagnetisation or compensation of external magnetic fields
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

a compensation capacity determining part(10) which has and outputs each compensation capacity signal corresponding to each direction; a direction detecting and selecting part(100) which detects the direction of a cathode-ray tube and outputs one of the compensation capacity input signals selectively according to the detection; and a deflection compensating part(30) compensating the deflection the cathode-ray tube according to the compensation capacity signal outputted selectively, being connected to the direction detecting and selecting part(100).

Description

지자계 편향 자동 보정 장치Geomagnetic field deflection automatic correction device

제1도는 종래 지자계 편향 보정장치의 블럭구성도.1 is a block diagram of a conventional geomagnetic field deflection correction device.

제2도는 본 발명에 따른 지자계 편향 자동 보정장치의 블럭구성도.2 is a block diagram of a geomagnetic field deflection automatic correction device according to the present invention.

본 발명은 음극선관(Cathode-ray tube)을 사용한 디스플레이(Display)장치의 편향 보정장치에 관한 것으로서, 특히 지자계 편향 보정장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deflection compensator of a display device using a cathode-ray tube, and more particularly, to a geomagnetic field deflection compensator.

일반적으로 음극선관을 사용한 디스플레이장치에서는 지자계 영향으로 동서남북의 방향에 따라 화상이 쉬프트(Shift)되는 현상이 발생하며, 특히 프로젝션(Projection) 계열에서는 3관식 이상으로써 지자계에 의해 크게 틀어져 결국 컨버젼스(Convergence) 틀어짐의 원인이 된다.In general, in the display device using cathode ray tubes, the image shifts due to the influence of the geomagnetic field. In the projection series, more than three-pipe type is greatly changed by the geomagnetic field. Convergence) is the cause of distortion.

따라서 지자계 영향을 고려하여 동서남북의 방향에 따라 음극선관의 편향을 보정하게 된다.Therefore, the deflection of cathode ray tubes is corrected according to the directions of the north, south, east, and west in consideration of the influence of the geomagnetic field.

제1도는 종래 지자계 편향 보정장치의 블록구성도로서, 보정량 결정부(10)는 각 방위(동서남북)에 따른 보정량을 구비하며, 각 보정량 전압을 출력한다.FIG. 1 is a block diagram of a conventional geomagnetic field deflection correction device. The correction amount determining unit 10 includes correction amounts corresponding to respective azimuths (east, north, south, east and west) and outputs respective correction amount voltages.

선택부(20)는 상기 보정량 결정부(10)에 연결되어 각 방위에 따른 출력단에 선택적 접속하여 보정량 전압을 출력한다.The selector 20 is connected to the correction amount determiner 10 and selectively connected to an output terminal corresponding to each orientation to output a correction amount voltage.

편향 보정부(30)는 상기 보정량 전압을 인가받으며, 이에 대응하여 음극선관의 편향을 보정한다.The deflection correction unit 30 receives the correction amount voltage, and correspondingly corrects the deflection of the cathode ray tube.

먼저 상술한 종래 지자계 편향 보정장치를 구비하고 음극선관을 사용한 디스플레이장치는 초기 생산지에서 상기 선택부(20)를 수동으로 동으로 선택하여 화상의 사이즈 및 중앙을 맞추고 기본적인 조성을 시작한다.First, the display device using the above-described conventional geomagnetic field deflection correction device and using a cathode ray tube manually selects the selection unit 20 at the initial production location, adjusts the size and center of the image, and starts basic composition.

이후 상기 제품은 소비자에게 전달되어 상기 제품설치시 설치장소의 방향에 따라 설치자에 의해 편향 보정장치내의 선택부(20)가 수동으로 절환되며, 선택된 방향에 대응하는 보정량 전압이 편향 보정부(30)으로 인가되어 지자계 편향 보정이 수행된다. 그러나 일반 사용자는 상기 지자계 편향 보정장치의 사용법을 모르는 경우가 대부분이며, 음극선관을 사용하는 디스플레이장치 설치시 사용자에 의해 지자계 편향 보정이 거의 고려되지 않고 있다.Thereafter, the product is delivered to the consumer so that the selection unit 20 in the deflection correction apparatus is manually switched by the installer according to the direction of the installation place when the product is installed, and the correction amount voltage corresponding to the selected direction is the deflection correction unit 30. Is applied to the geomagnetic field deflection correction. However, general users do not know how to use the geomagnetic field deflection correction device, and the geomagnetic field deflection correction is hardly considered by the user when installing a display device using a cathode ray tube.

상술한 바와같이 종래 지자계 편향 보정장치는 제품의 이동설치시에 설치방향에 대응하여 사용자에 의해 지자계 편향 보정량이 수동으로 변경선택되어야 하는 문제점이 있었다. 또한 상기 지자계 편향 보정장치의 사용을 인지못하는 사용자에 의해 지자계 편향 보정이 이루어지지 못하는 단점이 있었다.As described above, the conventional geomagnetic field deflection correction device has a problem in that the geomagnetic field deflection correction amount is manually changed and selected by the user in response to the installation direction when the product is moved and installed. In addition, there is a disadvantage that the geomagnetic field bias correction is not made by the user who does not recognize the use of the geomagnetic field deflection correction device.

따라서 본 발명의 목적은 음극선관의 설치방향에 따라 지자계 편향 보정을 자동으로 수행하는 지자계 편향 자동 보정장치를 제공함에 있다.It is therefore an object of the present invention to provide an automatic geomagnetic field deflection correction device for automatically performing geomagnetic field deflection correction according to the installation direction of the cathode ray tube.

상술한 목적을 달성하기 위한 본 발명은, 각 방위에 대응하는 따른 보정량 신호들을 구비하며, 각 보정량 신호들을 출력하는 보정량 결정부와, 상기 보정량 결정부로부터 각 방위에 따른 상기 보정량 신호를 입력받으며, 상기 음극선관의 방향을 감지하고 감지결과에 대응하여 상기 보정량 입력신호들 중 하나를 선택적 출력하는 방향 감지 및 선택부와, 방향 감지 및 선택부에 연결되어 상기 선택적 출력된 보정량 신호를 입력받으며, 이에 대응하여 음극선관의 편향을 보정하는 편향 보정부로 구성함을 특징으로 한다.The present invention for achieving the above object is provided with a correction amount signals corresponding to each orientation, a correction amount determination unit for outputting each correction amount signals, and receives the correction amount signal according to each orientation from the correction amount determination unit, A direction sensing and selection unit for sensing the direction of the cathode ray tube and selectively outputting one of the correction amount input signals in response to a sensing result, and receiving the selective output correction amount signal connected to a direction sensing and selecting unit Corresponding to the configuration of the deflection correction unit for correcting the deflection of the cathode ray tube.

이하 본 발명의 바람직한 구성 및 동작의 일실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

제2도는 본 발명에 따른 지자계 편향 자동 보정장치의 블록구성도로서, 각 방위에 대응하는 따른 보정량 신호들을 구비하며, 각 보정량 신호들을 출력하는 보정량 결정부(10)와, 상기 보정량 결정부(10)로부터 각 방위에 따른 상기 보정량 신호들을 입력받으며, 상기 음극선관의 방향을 감지하고 감지결과에 대응하여 상기 보정량 입력신호들중 하나를 선택적 출력하는 방향 감지 및 방향 감지 및 선택부(100)와, 방향 감지 및 선택부(100)에 연결되어 상기 선택적 출력된 보정량 신호를 입력받으며, 이에 대응하여 음극선관의 편향을 보정하는 편향 보정부(30)로 구성된다.2 is a block diagram of a geomagnetic field deflection automatic correction device according to the present invention, which includes correction amount signals corresponding to respective azimuths, and outputs respective correction amount signals, and the correction amount determining unit ( A direction detection and direction detection and selection unit 100 which receives the correction amount signals according to each direction from the 10), detects the direction of the cathode ray tube and selectively outputs one of the correction amount input signals in response to a detection result; And a deflection correction unit 30 connected to the direction detection and selection unit 100 to receive the selectively output correction amount signal and correspondingly correct the deflection of the cathode ray tube.

상기 구성에서 방향 감지 및 선택부(100)는 방향 감지센서 및 출력 선택 스위치를 구비하며, 음극선관의 방향을 감지하여 감지결과에 따라 상기 스위치의 출력선택이 제어된다.In the above configuration, the direction detection and selection unit 100 includes a direction detection sensor and an output selection switch, and detects the direction of the cathode ray tube to control the output selection of the switch according to the detection result.

또한 상술한 구성에서 기준전위는 동쪽방향 보정량이며, VA전위는 서쪽 방향 보정량이고, VB전위는 남쪽 방향 보정량이며, VC전위는 북족 방향 보정량이다.In the above-described configuration, the reference potential is the eastward correction amount, the V A potential is the westward correction amount, the V B potential is the south direction correction amount, and the V C potential is the northeast direction correction amount.

상술한 제2도의 구성을 참조하여 본 발명의 일실시예를 구체적으로 설명하면, 먼저 방향 감지 및 선택부(100)내의 방향 감지센서는 현재 음극선관의 방향을 감지하여 출력 선택 스위치를 제어하여 보정량 결정부(10)의 해당 방향의 보정량 신호를 편향 보정부(30)로 입력시킨다.The embodiment of the present invention will be described in detail with reference to the configuration of FIG. 2 described above. First, the direction detecting sensor in the direction detecting and selecting unit 100 detects the direction of the current cathode ray tube and controls the output selection switch to correct the amount of correction. The correction amount signal in the corresponding direction of the determination unit 10 is input to the deflection correction unit 30.

편향 보정부(30)는 상기 입력 보정량 신호에 따라 음극선관의 편향을 보정하여 지자계에 의한 화상의 쉬프트를 보정하여 정상적인 화면을 음극선관이 디스플레이할 수 있도록 한다. 여기서 음극선관의 편향 보정동작은 공지의 기술이므로 설명을 약한다.The deflection correction unit 30 corrects the deflection of the cathode ray tube according to the input correction amount signal to correct the shift of the image by the geomagnetic field so that the cathode ray tube can display a normal screen. Since the deflection correction operation of the cathode ray tube is a well-known technique, the description thereof will be omitted.

또한 프로젝션 계열의 3관식일 경우에는 3관 각각에 편향 보정을 가하며, 6관식일 경우 6관 각각에 편향 보정을 가하여 전체 지자계 편향 보정을 행할 수 있다.In addition, in the case of a three-pipe type projection system, deflection correction is applied to each of the three pipes.

따라서 상술한 바와 같이 본 발명은 음극선관의 설치 방향에 따른 지자계 편향을 자동으로 보정하여 설치시 수동조작이 필요없어, 음극선관 설치과정이 간단해진다.Therefore, as described above, the present invention automatically corrects the geomagnetic field deflection according to the installation direction of the cathode ray tube, and thus does not require manual operation during installation, thereby simplifying the cathode ray tube installation process.

Claims (2)

음극선관의 편향 보정장치에 있어서, 각 방위에 대응하는 따른 보정량 신호들을 구비하며, 각 보정량 신호들을 출력하는 보정량 결정부와, 상기 보정량 결정부로부터 각 방위에 따른 상기 보정량 신호들을 입력받으며, 상기 음극선관의 방향을 감지하고 감지결과에 대응하여 상기 보정량 입력신호들중 하나를 선택적 출력하는 방향 감지 및 선택부와, 방향 감지 및 선택부에 연결되어 상기 선택적 출력된 보정량 신호를 입력 받으며, 이에 대응하여 음극선관의 편향을 보정하는 편향 보정부로 구성함을 특징으로 하는 지자계 편향 보정장치.A deflection correction device of a cathode ray tube, comprising: correction amount signals corresponding to respective azimuths, a correction amount determining unit outputting respective correction amount signals, and receiving the correction amount signals according to each azimuth from the correction amount determining unit; A direction detection and selection unit for sensing the direction of the tube and selectively outputting one of the correction amount input signals in response to the detection result, and receiving the optional output correction amount signal connected to the direction detection and selection unit, and correspondingly Geomagnetic field deflection correction device comprising a deflection correction unit for correcting the deflection of the cathode ray tube. 제1항에 있어서, 상기 방향 감지 및 선택부가, 상기 음극선관의 방향을 감지하며 그 감지결과 신호를 출력하는 방향 감지 센서와, 상기 감지결과 신호와 상기 보정량 신호들은 입력받으며 상기 감지결과 신호에 대응하는 보정량 신호를 선택적 출력하는 출력 선택 스위치로 구성함을 특징으로 하는 지자계 편향 자동 보정장치.The sensor of claim 1, wherein the direction detection and selection unit detects a direction of the cathode ray tube and outputs a detection result signal, and the detection result signal and the correction amount signals are input and correspond to the detection result signal. An automatic magnetic field deflection correction device comprising: an output selection switch for selectively outputting a correction amount signal.
KR1019940001310A 1994-01-25 1994-01-25 Circuit for compensating earth magnetic deflection KR960013551B1 (en)

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KR100296301B1 (en) 1998-11-19 2001-08-07 구자홍 Earth-magnetic field automation compensating apparatus for monitor
KR100387961B1 (en) * 2001-04-24 2003-06-18 엘지전자 주식회사 A correction controller for Display using a swivel

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