KR970077021A - Cathode for electron emission - Google Patents

Cathode for electron emission Download PDF

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Publication number
KR970077021A
KR970077021A KR1019960015669A KR19960015669A KR970077021A KR 970077021 A KR970077021 A KR 970077021A KR 1019960015669 A KR1019960015669 A KR 1019960015669A KR 19960015669 A KR19960015669 A KR 19960015669A KR 970077021 A KR970077021 A KR 970077021A
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KR
South Korea
Prior art keywords
cathode
electron emission
electron
material layer
negative electrode
Prior art date
Application number
KR1019960015669A
Other languages
Korean (ko)
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KR100228156B1 (en
Inventor
이성률
이지홍
Original Assignee
엄길용
오리온전기 주식회사
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.)
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Application filed by 엄길용, 오리온전기 주식회사 filed Critical 엄길용
Priority to KR1019960015669A priority Critical patent/KR100228156B1/en
Publication of KR970077021A publication Critical patent/KR970077021A/en
Application granted granted Critical
Publication of KR100228156B1 publication Critical patent/KR100228156B1/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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/488—Schematic arrangements of the electrodes for beam forming; Place and form of the elecrodes
    • 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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/485—Construction of the gun or of parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2329/00—Electron emission display panels, e.g. field emission display panels
    • H01J2329/46—Arrangements of electrodes and associated parts for generating or controlling the electron beams

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

본 발명은 음극선관용 전자총에서 열전자를 방출하는 음극을 개선하는 전자방출용 음극을 제공한다.The present invention provides an electron emission cathode for improving a cathode that emits a thermoelectromotive force in an electron gun for a cathode ray tube.

그 전자방출용 음극은, 음극 슬리브의 상면에 전자방사물질을 피착시킨 음극에 있어서 : Ni을 주성분으로 하는 통형상의 음극 슬리브 : 상기 음극슬리브의 상부 개구에 압입되며, 실리콘(Si), 마그네슘(Mg) 등의 미량의 환원원제와 Ni 및 Sc으로 된 Ni/Sc소결층; 그리고 그 Ni/Sc 소결층위에 형성되며, Ba산하물을 주성분으로 하고 Ca, Sr의 산화물이 첨가된 전자방사물질층을 구비하는 것을 특징으로 한다.The cathode for electron emission is a cathode in which an electron emitting material is deposited on an upper surface of a cathode sleeve: a cylindrical cathode sleeve made of Ni as a main component: a cathode which is press-fitted into an upper opening of the cathode sleeve, Mg) and Ni / Sc sintered layers of Ni and Sc; And an electron emissive material layer formed on the Ni / Sc sintered layer, the electron emissive material layer containing Ba as a main component and containing oxides of Ca and Sr.

이에 따라, 음극선관의 고정세화, 대형화에 따른 전자방사 특성을 충족시키고 나아가 종래의 고전류밀도 특성은 유지하면서 제조공정의 소요시간을 줄여 생산성 향상에 기여하는 효과가 있다.Accordingly, it is possible to satisfy the electron emission characteristic of the cathode ray tube due to the high definition and the large size of the cathode ray tube, thereby contributing to the improvement of the productivity by reducing the time required for the manufacturing process while maintaining the conventional high current density characteristics.

Description

전자방출용 음극Cathode for electron emission

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

제2도는 제1도의 베이스와 전자방사물질층 사이의 계면부근의 부분확대단면도, 제3도는 본 발명에 따른 음극의 단면도.FIG. 2 is a partially enlarged sectional view of the vicinity of the interface between the base of FIG. 1 and the electron emissive material layer, and FIG. 3 is a sectional view of the cathode according to the present invention.

Claims (3)

음극 슬리브(20)의 상면에 전자방사물질(21)을 피착시킨 음극에 있어서; Ni을 주성분으로 하는 통형상의 음극 슬리브; 상기 음극슬리브의 상부 개구에 압입되며, 실리콘(Si), 마그네슘(Mg)등의 미량의 환원원제와 Ni 및 Sc으로 된 Ni/Sc소결층; 그리고 그 Ni/Sc소결층에 형성되며, Ba산화물을 주성분으로 하고 Ca, Sr의 산화물이 첨가된 전자방사물질층을 구비하는 것을 특징으로 하는 전자방출용 음극.In a negative electrode to which an electron emitting material (21) is attached on an upper surface of a negative electrode sleeve (20); A cylindrical negative electrode sleeve having Ni as a main component; A Ni / Sc sintered layer of Ni and Sc, which is pressed into the upper opening of the negative electrode sleeve and contains a small amount of reducing agent such as silicon (Si) or magnesium (Mg); And an electron emission material layer formed on the Ni / Sc sintered layer, the electron emission material layer containing Ba oxide as a main component and Ca and Sr oxide added thereto. 제1항에 있어서, 상기 Ni/Sc소결층은 Sc의 입경이 0.05 내지 0.2이며 실리콘(Si), 마그네슘(Mg) 등의 환원제분말은 0.02 내지 0.03중량%인 것을 특징으로 하는 전자방출용 음극.The negative electrode for electron emission according to claim 1, wherein the Ni / Sc sintered layer has a Sc particle size of 0.05 to 0.2 and a reducing agent powder such as silicon (Si) and magnesium (Mg) in an amount of 0.02 to 0.03% by weight. 제1항에 있어서, 상기 전자방사물질층이 스프레이하여 형성된 것을 특징으로 하는 전자방출용 음극.The cathode according to claim 1, wherein the electron emission material layer is formed by spraying. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960015669A 1996-05-11 1996-05-11 Cathode of cathode ray tube KR100228156B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960015669A KR100228156B1 (en) 1996-05-11 1996-05-11 Cathode of cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960015669A KR100228156B1 (en) 1996-05-11 1996-05-11 Cathode of cathode ray tube

Publications (2)

Publication Number Publication Date
KR970077021A true KR970077021A (en) 1997-12-12
KR100228156B1 KR100228156B1 (en) 1999-11-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960015669A KR100228156B1 (en) 1996-05-11 1996-05-11 Cathode of cathode ray tube

Country Status (1)

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KR (1) KR100228156B1 (en)

Also Published As

Publication number Publication date
KR100228156B1 (en) 1999-11-01

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