KR930020550A - Cathode ray tube - Google Patents

Cathode ray tube Download PDF

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Publication number
KR930020550A
KR930020550A KR1019930003893A KR930003893A KR930020550A KR 930020550 A KR930020550 A KR 930020550A KR 1019930003893 A KR1019930003893 A KR 1019930003893A KR 930003893 A KR930003893 A KR 930003893A KR 930020550 A KR930020550 A KR 930020550A
Authority
KR
South Korea
Prior art keywords
conductive layer
coil device
deflection coil
ray tube
cathode ray
Prior art date
Application number
KR1019930003893A
Other languages
Korean (ko)
Other versions
KR960011770B1 (en
Inventor
데쯔야 야마구찌
Original Assignee
기따오까 다까시
미쯔비시덴끼 가부시끼가이샤
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 기따오까 다까시, 미쯔비시덴끼 가부시끼가이샤 filed Critical 기따오까 다까시
Publication of KR930020550A publication Critical patent/KR930020550A/en
Application granted granted Critical
Publication of KR960011770B1 publication Critical patent/KR960011770B1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/867—Means associated with the outside of the vessel for shielding, e.g. magnetic shields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
    • H01J2229/0015—Preventing or cancelling fields leaving the enclosure
    • H01J2229/0023—Passive means

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

본 발명은 음극선관에 관한 것으로, 컬러 텔레비젼 등에서 사용되는 CRT에 있어서 인체에 악영향을 끼칠 염려가 있는 교번 전계를 충분히 차폐할 수 있도록 하기 위해, 편향 코일 장치(24)의 하부 영역을 단위 면적당의 저항값이이하인 도전층(34)로 덮고, 그 도전층(34)를 저저항층(27)을 거쳐서 샤시 접지와 전기적으로 접속하고, 또 도전층(34)와 편향 코일 장치(24) 사이에 절연층(33)을 삽입하여 구성하였다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cathode ray tube, and in order to sufficiently shield an alternating electric field that may adversely affect a human body in a CRT used in a color television or the like, the lower area of the deflection coil device 24 is a resistance per unit area. Value is The conductive layer 34 is covered with the following conductive layer 34, and the conductive layer 34 is electrically connected to the chassis ground via the low resistance layer 27, and the insulating layer 34 is formed between the conductive layer 34 and the deflection coil device 24. 33) was inserted.

이러한 구성을 취하는 것에 의해, 편향 코일 장치에서 발생되는 전자파중 CRT의 표시창을 빠져나가 인체에 악영향을 끼칠 염려가 있는 교번 전계를 충분히 차폐할수 있다.By adopting such a configuration, it is possible to sufficiently shield an alternating electric field that may escape from the display window of the CRT among electromagnetic waves generated by the deflection coil device and adversely affect the human body.

Description

음극선관Cathode ray tube

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

제1도는 본 실시예에 관한 음극선관의 측면도.1 is a side view of a cathode ray tube according to the present embodiment.

제2도는 종래의 음극선관의 측면도.2 is a side view of a conventional cathode ray tube.

Claims (2)

전자총 및 전자총에서 발생되는 전자빔을 편향하는 편향 코일 장치를 구비한 음극선관에 있어서, 상기 편향 코일 장치의 하부 영역을 단위 면적당의 저항값이이하인 도전층으로 덮고, 그 도전층을 접지와 전기적으로 접속하고, 또 도전층과 편향 코일 장치 사이에 절연층을 삽입하여 구성한 것을 특징으로 하는 음극선관.A cathode ray tube having a deflection coil device for deflecting an electron gun and an electron beam generated by an electron gun, wherein the lower region of the deflection coil device has a resistance value per unit area. A cathode ray tube characterized by covering with a conductive layer described below, electrically connecting the conductive layer to ground, and inserting an insulating layer between the conductive layer and the deflection coil device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930003893A 1992-03-18 1993-03-15 Cathode ray tube screening arrangement KR960011770B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4062505A JPH05266829A (en) 1992-03-18 1992-03-18 Cathode-ray tube
JP92-062505 1992-03-18

Publications (2)

Publication Number Publication Date
KR930020550A true KR930020550A (en) 1993-10-20
KR960011770B1 KR960011770B1 (en) 1996-08-30

Family

ID=13202104

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930003893A KR960011770B1 (en) 1992-03-18 1993-03-15 Cathode ray tube screening arrangement

Country Status (4)

Country Link
JP (1) JPH05266829A (en)
KR (1) KR960011770B1 (en)
DE (1) DE4308491A1 (en)
GB (1) GB2265492B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2287355B (en) * 1994-03-11 1997-07-23 Sony Uk Ltd Improvements in or relating to cathode ray tubes
TW434635B (en) * 1999-02-12 2001-05-16 Koninkl Philips Electronics Nv Cathode ray tube with deflection unit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB473385A (en) * 1936-10-22 1937-10-12 Vladislas Zeitline Improvements in or relating to braun tubes
BE794166A (en) * 1972-01-19 1973-07-17 Philips Nv PROCESS FOR MANUFACTURING A DEVICE INCLUDING A LAYER CONSTITUTING A RESISTANCE
US3952152A (en) * 1974-10-29 1976-04-20 Teletype Corporation CRT shield
US4161673A (en) * 1977-06-30 1979-07-17 Zenith Radio Corporation Arc suppression and static elimination system for a television CRT
US4392083A (en) * 1981-11-20 1983-07-05 Teletype Corporation Radiation shield for a cathode ray tube
DE3405022A1 (en) * 1984-02-13 1985-08-14 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Cathode-ray tube
JPH03266340A (en) * 1990-03-16 1991-11-27 Hitachi Ltd Crt display device
GB2255441B (en) * 1991-04-18 1995-06-21 Mitsubishi Electric Corp Cathode-ray tube having alternating electric field reduction device
GB2264587A (en) * 1992-02-21 1993-09-01 Ibm Cathode ray display tube.

Also Published As

Publication number Publication date
GB2265492A (en) 1993-09-29
GB2265492B (en) 1996-02-28
DE4308491A1 (en) 1993-09-23
JPH05266829A (en) 1993-10-15
GB9305296D0 (en) 1993-05-05
KR960011770B1 (en) 1996-08-30

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