KR900001051B1 - In-line type color crt - Google Patents

In-line type color crt

Info

Publication number
KR900001051B1
KR900001051B1 KR8710987A KR870010987A KR900001051B1 KR 900001051 B1 KR900001051 B1 KR 900001051B1 KR 8710987 A KR8710987 A KR 8710987A KR 870010987 A KR870010987 A KR 870010987A KR 900001051 B1 KR900001051 B1 KR 900001051B1
Authority
KR
South Korea
Prior art keywords
line type
electron
type color
color crt
central
Prior art date
Application number
KR8710987A
Other languages
Korean (ko)
Other versions
KR890005812A (en
Inventor
Soo-Keun Kwon
Original Assignee
Gold Star Co
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 Gold Star Co filed Critical Gold Star Co
Priority to KR8710987A priority Critical patent/KR900001051B1/en
Publication of KR890005812A publication Critical patent/KR890005812A/en
Application granted granted Critical
Publication of KR900001051B1 publication Critical patent/KR900001051B1/en

Links

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

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

The CRT for getting an uniform convergence of the electron beams generated from three electron guns includes combined convergence electrodes (33) comprising of a first and second grid electrodes (35,36). The one electrode is applied by constant voltage but another one is applied by dynamic voltage which is varied according to the variation of the beam deflection. The vertical lengths of the electron beam holes (40",41") in the first central and second grids are longer than the outer ones (40', 40"', 41', 41"') so that the central and outer electric fields are uniform to deflect the electron beam on the certain spot of the screen.
KR8710987A 1987-09-30 1987-09-30 In-line type color crt KR900001051B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR8710987A KR900001051B1 (en) 1987-09-30 1987-09-30 In-line type color crt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR8710987A KR900001051B1 (en) 1987-09-30 1987-09-30 In-line type color crt

Publications (2)

Publication Number Publication Date
KR890005812A KR890005812A (en) 1989-05-17
KR900001051B1 true KR900001051B1 (en) 1990-02-26

Family

ID=19264946

Family Applications (1)

Application Number Title Priority Date Filing Date
KR8710987A KR900001051B1 (en) 1987-09-30 1987-09-30 In-line type color crt

Country Status (1)

Country Link
KR (1) KR900001051B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001068039A (en) * 1999-08-25 2001-03-16 Nec Kansai Ltd Color cathode-ray tube and electron gun thereof
JP2001110334A (en) * 1999-10-08 2001-04-20 Hitachi Ltd Color cathode-ray tube equipped with inline electron guns

Also Published As

Publication number Publication date
KR890005812A (en) 1989-05-17

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20050131

Year of fee payment: 16

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