WO2004066412A3 - Resistive high-voltage divider, electron gun incorporating a resistive divider and cathode ray tube - Google Patents

Resistive high-voltage divider, electron gun incorporating a resistive divider and cathode ray tube Download PDF

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Publication number
WO2004066412A3
WO2004066412A3 PCT/EP2004/000400 EP2004000400W WO2004066412A3 WO 2004066412 A3 WO2004066412 A3 WO 2004066412A3 EP 2004000400 W EP2004000400 W EP 2004000400W WO 2004066412 A3 WO2004066412 A3 WO 2004066412A3
Authority
WO
WIPO (PCT)
Prior art keywords
resistive
divider
ray tube
cathode ray
electron gun
Prior art date
Application number
PCT/EP2004/000400
Other languages
French (fr)
Other versions
WO2004066412A2 (en
Inventor
Der Wilk Ronald Van
Herman Schreuders
Zutphen Tom Van
Petrus Jacobus Antonius Derks
Vries Gosse De
Original Assignee
Lg Philips Displays
Der Wilk Ronald Van
Herman Schreuders
Zutphen Tom Van
Petrus Jacobus Antonius Derks
Vries Gosse De
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 Lg Philips Displays, Der Wilk Ronald Van, Herman Schreuders, Zutphen Tom Van, Petrus Jacobus Antonius Derks, Vries Gosse De filed Critical Lg Philips Displays
Publication of WO2004066412A2 publication Critical patent/WO2004066412A2/en
Publication of WO2004066412A3 publication Critical patent/WO2004066412A3/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
    • H01J29/484—Eliminating deleterious effects due to thermal effects, electrical or magnetic fields; Preventing unwanted emission
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/48—Electron guns
    • H01J2229/4834—Electrical arrangements coupled to electrodes, e.g. potentials

Landscapes

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

Abstract

A resistive high voltage divider (30) is provided at an outer surface with an insulating material having a relatively limited conductance. Furthermore, the material has a low secondary electron emission coefficient. These features reduce secondary electron emission processes that occur on the outer surface of such resistive dividers when used for an electron gun of a Cathode Ray Tube (CRT). As a result, flashovers in the CRT are less likely to take place, and the lifetime of the CRT is increased. A preferred material system for application on the resistive divider surface is a glass compound including at least 20 weight percent chromium oxide (Cr2O3).
PCT/EP2004/000400 2003-01-20 2004-01-13 Resistive high-voltage divider, electron gun incorporating a resistive divider and cathode ray tube WO2004066412A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03100100.1 2003-01-20
EP03100100 2003-01-20

Publications (2)

Publication Number Publication Date
WO2004066412A2 WO2004066412A2 (en) 2004-08-05
WO2004066412A3 true WO2004066412A3 (en) 2005-05-26

Family

ID=32748921

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/000400 WO2004066412A2 (en) 2003-01-20 2004-01-13 Resistive high-voltage divider, electron gun incorporating a resistive divider and cathode ray tube

Country Status (1)

Country Link
WO (1) WO2004066412A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2028576A (en) * 1978-07-15 1980-03-05 Sony Corp Electron guns and resistors for cathode ray tubes
EP0251137A2 (en) * 1986-06-27 1988-01-07 Kabushiki Kaisha Toshiba A resistor and an electron tube incorporating the same
EP0512627A2 (en) * 1991-05-08 1992-11-11 Koninklijke Philips Electronics N.V. Cathode ray tube and method of manufacturing a cathode ray tube
US5914559A (en) * 1996-05-29 1999-06-22 Sony Corporation Resistance element and cathode ray tube
US20020053866A1 (en) * 2000-09-19 2002-05-09 Hisao Nakamura Color cathode ray tube having an internal voltage-dividing resistor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2028576A (en) * 1978-07-15 1980-03-05 Sony Corp Electron guns and resistors for cathode ray tubes
EP0251137A2 (en) * 1986-06-27 1988-01-07 Kabushiki Kaisha Toshiba A resistor and an electron tube incorporating the same
EP0512627A2 (en) * 1991-05-08 1992-11-11 Koninklijke Philips Electronics N.V. Cathode ray tube and method of manufacturing a cathode ray tube
US5914559A (en) * 1996-05-29 1999-06-22 Sony Corporation Resistance element and cathode ray tube
US20020053866A1 (en) * 2000-09-19 2002-05-09 Hisao Nakamura Color cathode ray tube having an internal voltage-dividing resistor

Also Published As

Publication number Publication date
WO2004066412A2 (en) 2004-08-05

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