KR940017904A - Cathode Ray Tube Display - Google Patents

Cathode Ray Tube Display Download PDF

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Publication number
KR940017904A
KR940017904A KR1019930027688A KR930027688A KR940017904A KR 940017904 A KR940017904 A KR 940017904A KR 1019930027688 A KR1019930027688 A KR 1019930027688A KR 930027688 A KR930027688 A KR 930027688A KR 940017904 A KR940017904 A KR 940017904A
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KR
South Korea
Prior art keywords
cathode ray
ray tube
tube display
reverse polarity
voltage
Prior art date
Application number
KR1019930027688A
Other languages
Korean (ko)
Inventor
히로시 오스카
Original Assignee
기타오카 다카시
미쓰비시덴키 가부시키가이샤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 기타오카 다카시, 미쓰비시덴키 가부시키가이샤 filed Critical 기타오카 다카시
Publication of KR940017904A publication Critical patent/KR940017904A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/16Picture reproducers using cathode ray tubes
    • H04N9/29Picture reproducers using cathode ray tubes using demagnetisation or compensation of external magnetic fields
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007Elimination of unwanted or stray electromagnetic effects
    • H01J2229/0046Preventing or cancelling fields within the enclosure
    • H01J2229/0053Demagnetisation

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Details Of Television Scanning (AREA)

Abstract

음극선관 디스플레이장치에 대한 것으로, 이 장치에서는 음극선과 표면에 유도된 VLF 대역에서 교번전계의 역극성을 가진 전압을 CRT 표면의 주변 또는 데가우스코일에 설치된 염가의 저저항부재에 인가시킴으로써 고가의 투명한 저저항부재가 불필요하게 되어 그 제작코스가 저렴하게 된다.The present invention relates to a cathode ray tube display device, in which an expensive and transparent device is applied by applying a voltage having a reverse polarity of alternating electric field to a cathode ray and a surface-induced VLF band to a low-resistance member near a CRT surface or a degauss coil. The low resistance member becomes unnecessary, and the manufacturing course thereof is inexpensive.

Description

음극선관 디스플레이장치Cathode Ray Tube Display

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 이 발명의 제1 실시예에 의한 음극선관 디스플레이장치의 개략 구성도, 제6도는 이 발명의 제2 실시예에 의한 음극선과 디스플레이장치에서 교번전계 취소회로를 나타낸 회로도, 제7도는 이 발명의 제3 실시예에 의한 음극선관 디스플레이장치에서 교번전계 취소회로를 나타낸 회로도, 제8도는 이 발명의 제4 실시예에 의한 음극선관 디스플레이장치에서 교번전계 취소회로를 나타낸 회로도.3 is a schematic configuration diagram of a cathode ray tube display device according to a first embodiment of the present invention, FIG. 6 is a circuit diagram showing an alternating field cancellation circuit in a cathode ray display device according to a second embodiment of the present invention, and FIG. A circuit diagram showing an alternating field cancellation circuit in a cathode ray tube display device according to a third embodiment of the invention, and FIG. 8 is a circuit diagram showing an alternating field cancellation circuit in a cathode ray tube display device according to a fourth embodiment of the present invention.

Claims (9)

플라이 백 트랜스포머(fly-back transformer)를 포함하는 수평편향 회로에 의해 작동되는 음극선관을 사용하여 화상을 표시하는 음극선관 디스플레이 장치에 있어서, 그 음극선관을 수용하는 캐비넷(cobinet)과, 그 캐비넷내에 설치되고 그 음극선관 표면주변의 적어도 일부분에 위치되어 있는 저저항부재와, 그 음극선관 표면에 유도된 VLF대역에서 교번전계(alternating electric field)의 역극성을 가진 전압을 발생하는 역극성 전압 발생수단을 구성하며 그 역극성전압이 그 저저항부재에 인가되도록 함을 특징으로 하는 위 음극선과 디스플레이장치.A cathode ray tube display device that displays an image using a cathode ray tube operated by a horizontal deflection circuit including a fly-back transformer, comprising: a cabinet accommodating the cathode ray tube and a cabinet; A reverse resistance voltage generating means for generating a low resistance member disposed at least at a portion of the surface of the cathode ray tube surface and generating a voltage having reverse polarity of an alternating electric field in the VLF band induced on the surface of the cathode ray tube; And the reverse polarity voltage is applied to the low resistance member. 제1항에 있어서, 그 저저항부재는 코일, 필름 및 판(plate)중 하나임을 특징으로 하는 위 음극선관 디스플레이장치.The above cathode ray tube display apparatus according to claim 1, wherein the low resistance member is one of a coil, a film, and a plate. 제1항에 있어서, 그 저저항부재는 알루미늄으로 구성됨을 특징으로 하는 위 음극선관 디스플레이장치.The upper cathode ray tube display apparatus according to claim 1, wherein the low resistance member is made of aluminum. 제1항에 있어서, 그 저저항부재는 동(copper)으로 구성됨을 특징으로 하는 위 음극선관 디스플레이장치.The upper cathode ray tube display apparatus according to claim 1, wherein the low resistance member is made of copper. 제1항에 있어서, 그 역극성전압은 플라이 백 트랜스포머에서 발생함을 특징으로 하는 위 음극선관 디스플레이장치.The upper cathode ray tube display apparatus according to claim 1, wherein the reverse polarity voltage is generated in a flyback transformer. 제1항에 있어서, 그 역극성전압은 수평편향회로의 수평출력 트랜스포머에서 발생함을 특징으로 하는 위 음극선관 디스플레이장치.The above cathode ray tube display apparatus according to claim 1, wherein the reverse polarity voltage is generated in a horizontal output transformer of a horizontal deflection circuit. 플라이 백 트랜스포머를 포함하는 수평편향회로에 의해 작동되는 음극선관을 사용하여 화상을 표시하는 음극선관 디스플레이 장치에 있어서, 음극선관 디스플레이 장치에 전력을 공급하는 전력공급회로와, 데가우스코일(degaussing coil)을 그 전력공급회로 접속시켜 그 음극선관을 소자(erasing magnetism)시키는 데가우스코일과, 음극선관 표면에 유도된 VLF대역에서 교번전계의 역극성을 가진 전압을 발생하는 역극성발생수단 및 그 데가우스코일을 그 전력공급회로에서 전기분기시키며, 그 소자(erasing)를 완료한 후에 그 역극성전압을 데가우스코일에 인가하는 스위칭수단(switching means)을 구성함을 특징으로 하는 위 음극선관 디스플레이장치.A cathode ray tube display device that displays an image using a cathode ray tube operated by a horizontal deflection circuit including a flyback transformer, the cathode ray tube display device comprising: a power supply circuit for supplying power to the cathode ray tube display device, and a degaussing coil; Is connected to the power supply circuit for degaussing the cathode ray tube, and the reverse polarity generating means for generating a voltage having reverse polarity of the alternating field in the VLF band induced on the surface of the cathode ray tube and the degauss And a switching means for applying a reverse polarity voltage to the degauss coil after the coil is electrically branched from the power supply circuit and completing the erasing. 제7항에 있어서, 그 역극성전압은 플라이 백 트랜스포머에서 발생함을 특징으로 하는 위 음극선관 디스플레이장치.8. The upper cathode ray tube display device according to claim 7, wherein the reverse polarity voltage is generated in a flyback transformer. 제7항에 있어서, 그 역극성전압은 수평편향회로의 수평출력 트랜스포머에서 발생함을 특징으로 하는 위 음극선관 디스플레이장치.8. The upper cathode ray tube display apparatus according to claim 7, wherein the reverse polarity voltage is generated in a horizontal output transformer of the horizontal deflection circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930027688A 1992-12-21 1993-12-14 Cathode Ray Tube Display KR940017904A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP92-340113 1992-12-21
JP4340113A JPH06189323A (en) 1992-12-21 1992-12-21 Cathode-ray tube display device

Publications (1)

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KR940017904A true KR940017904A (en) 1994-07-27

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JP (1) JPH06189323A (en)
KR (1) KR940017904A (en)
TW (1) TW281754B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08227666A (en) * 1995-02-20 1996-09-03 Matsushita Electric Ind Co Ltd Leakage field reduction device for crt display
KR100810513B1 (en) 2002-10-04 2008-03-07 삼성전자주식회사 degaussing circuit for CRT monitor

Also Published As

Publication number Publication date
TW281754B (en) 1996-07-21
JPH06189323A (en) 1994-07-08

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