KR970078669A - Electric Field Elimination Device for Video Display Device - Google Patents

Electric Field Elimination Device for Video Display Device Download PDF

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Publication number
KR970078669A
KR970078669A KR1019960016268A KR19960016268A KR970078669A KR 970078669 A KR970078669 A KR 970078669A KR 1019960016268 A KR1019960016268 A KR 1019960016268A KR 19960016268 A KR19960016268 A KR 19960016268A KR 970078669 A KR970078669 A KR 970078669A
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KR
South Korea
Prior art keywords
electric field
cpt
reverse voltage
generated
field generated
Prior art date
Application number
KR1019960016268A
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Korean (ko)
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KR100204223B1 (en
Inventor
노영현
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구자홍
Lg 전자 주식회사
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Priority to KR1019960016268A priority Critical patent/KR100204223B1/en
Publication of KR970078669A publication Critical patent/KR970078669A/en
Application granted granted Critical
Publication of KR100204223B1 publication Critical patent/KR100204223B1/en

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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
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/04—Mounting of components, e.g. of leadless components
    • H05K13/046—Surface mounting

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

본 발명은 영상 표시기기의 전면에 발생하는 전기장을 제거하기 위한 장치에 관한 것으로서, 특히, CPT면에서 발생되는 전기장 신호를 검출하고, 검출된 전기장 신호의 역전압을 생성하여 CPT면 또는 전기장을 상쇄용 수단에 인가하여 CPT면에서 발생되는 전기장을 제거할 수 있도록 한 영상표시기기의 전기장 제거 장치에 관한것이다.The present invention relates to an apparatus for removing an electric field generated on a front surface of an image display apparatus, and more particularly, to an apparatus for detecting an electric field signal generated on a CPT plane and generating a reverse voltage of the detected electric field signal, To an electric field eliminating device of an image display device capable of eliminating an electric field generated on the CPT surface.

CPT 또는 CRT 등을 탈자시키기 위한 목적으로 기존 설치된 디가우징 코일에 디가우징 코일의 초기 동작후 전기장 제거를 위한 부펄스 파형을 공급하여 CPT 또는 CRT의 전면에 발생하는 전기장을 제거할 수 있도록하는 종래 영상표시기기의 전기장 제거 장치의 경우에 있어서는 부펄스를 생성하기 위한 회로가 복잡해지므로서, 기기의 생산성이 저하되며, 복합해지는 회로에 의하여 기기에 대한 사용자의 신뢰가 떨어지게 되는 문제점이 발생하게 된다.In order to remove the CPT or CRT, a negative pulse waveform for eliminating the electric field is supplied to the existing installed degaussing coil after the initial operation of the degaussing coil to remove the electric field generated on the front surface of the CPT or CRT In the case of the electric field elimination device of the conventional image display device, since the circuit for generating the negative pulse is complicated, the productivity of the device is lowered, and the reliability of the device is lowered by the complex circuit .

따라서, 본 발명에서는 상기에서와 같은 문제점을 해결하기 위하여 CPT의 측면 유리면에 전기장 검출 및 역전압 생성용 인쇄회로기판(PCB)의 동박면을 부착하여 CPT에서 발생되는 전기장을 검출한후, 검출된 전기장의 역전압을 발생시켜 CPT에서 발생되는 전기장을 제거할 수 있도록 하므로서, 간단한 회로구성을 통하여 신뢰성있는 인체에 유해한 전기장을 제거할 수 있도록 하는 것이다.Therefore, in order to solve the problems as described above, the present invention is characterized in that a copper foil surface of a printed circuit board (PCB) for electric field detection and reverse voltage generation is attached to a side glass surface of a CPT to detect an electric field generated in CPT, It is possible to eliminate a harmful electric field to a human body through a simple circuit configuration by generating a reverse voltage of an electric field to remove an electric field generated in the CPT.

Description

영상표시기기의 전기장 제거 장치Electric Field Elimination Device for Video Display Device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제3도는 본 발명 영상표시기기의 전기장 제거 장치의 구성을 보인 도면.FIG. 3 is a view showing a configuration of an electric field eliminating device of a video display device according to the present invention. FIG.

Claims (3)

CPT의 탈자를 위하여 전면에 도전성 판넬(1)을 체결한 CPT의 측유리면에 CPT에서 발생되는 전기장의 검출 및 역전압 생성용 PCB애시(2)의 동박면(3)을 부착시킨 것을 특징으로 하며, 부착된 PCB애시(2)의 동박면(3)을 통하여 CPT에서 발생되는 전기장을 검출하고, 검출된 전기장 신호의 역전압을 생성하여 CPT전면에 체결된 도전성 판넬(1)에 인가하여 전기장을 제거하는 것을 특징으로 하는 영상표시기기의 전기장 제거 장치.The copper foil 3 of the PCB ashes 2 for detecting the electric field generated in the CPT and for generating the reverse voltage is attached to the side glass surface of the CPT having the conductive panel 1 bonded to the front surface thereof for demagnetization of the CPT , An electric field generated in the CPT is detected through the copper foil surface 3 of the attached PCB ashes 2 and a reverse voltage of the detected electric field signal is generated and applied to the conductive panel 1 fastened to the front surface of the CPT to generate an electric field And removing the electric field from the image display device. 제1항에 있어서, 상기 CPT 측유리면에 부착되는 PCB애시(2)는 CPT에 부착되는 동박면(3)의 CPT부착 부위에는 발생되는 전기장을 검출하기 위한 신호검출부(3A)와 접지부(3B)가 구성되며, 검출된 전기장을 회로부에 전달하기 위하여 상기 신호검출부(3A)와 접지부(3B)에는 구멍(3C1,3C2)이 형성되며, 형성된 구멍(3C1,3C2)을 통하여 검출된 신호를 전달받는 펄스 입력부(3D)와, 펄스 입력부(3D)로 입력된 검출 신호전압의 펄스를 감지 및 분압하여 출력하는 저항(R11,R12)과, 저항(R11,R12)에서 출력된 일정 전압의 펄스신호를 전달하는 트랜지스터(Q11)와, 상기 트랜지스터(Q11)로부터 전달된 펄스신호를 반전증폭하는 트랜지스터(Q12)와, 트랜지스터(Q12)에서 출력된 펄스의 위상을 조정하여 도전성 판넬(1)에 인가하도록 병렬로 접속된 저항(R19) 및 콘덴서(C12)의 구성요소를 포함하여 구성된 것을 특징으로 하는 영상표시기기의 전기장 제거 장치.The method of claim 1, wherein the PCB ashes (2) attached to the CPT-side glass surface comprise a signal detecting part (3A) for detecting an electric field generated at the CPT attachment part of the copper foil surface (3) Holes 3C1 and 3C2 are formed in the signal detecting unit 3A and the grounding unit 3B in order to transmit the detected electric field to the circuit unit and signals detected through the holes 3C1 and 3C2 A resistor R11 and R12 for detecting and outputting a pulse of a detection signal voltage input to the pulse input unit 3D and outputting a pulse of the detection signal voltage; A transistor Q12 for inverting and amplifying the pulse signal transmitted from the transistor Q11 and a transistor Q12 for adjusting the phase of the pulse output from the transistor Q12 to apply to the conductive panel 1 And a resistor R19 and a capacitor C12 connected in parallel to each other Removing the electric field device of the video display device, it characterized in that configured. 제1항 또는 제2항에 있어서, 상기 전기장 신호의 역전압을 CPT면에 인가하여 전기장을 제거하는 것을 특징으로 하는 영상표시기기의 전기장 제거 장치.The apparatus of claim 1 or 2, wherein an electric field is removed by applying a reverse voltage of the electric field signal to the CPT surface. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960016268A 1996-05-15 1996-05-15 Apparatus for removing electric field of image displayer KR100204223B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960016268A KR100204223B1 (en) 1996-05-15 1996-05-15 Apparatus for removing electric field of image displayer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960016268A KR100204223B1 (en) 1996-05-15 1996-05-15 Apparatus for removing electric field of image displayer

Publications (2)

Publication Number Publication Date
KR970078669A true KR970078669A (en) 1997-12-12
KR100204223B1 KR100204223B1 (en) 1999-06-15

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KR1019960016268A KR100204223B1 (en) 1996-05-15 1996-05-15 Apparatus for removing electric field of image displayer

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KR100204223B1 (en) 1999-06-15

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