KR930020538A

KR930020538A - Electron gun for colored cathode ray tube

Info

Publication number: KR930020538A
Application number: KR1019920004958A
Authority: KR
Inventors: 배민철; 김헌창
Original assignee: 박경팔; 삼성전관 주식회사
Priority date: 1992-03-26
Filing date: 1992-03-26
Publication date: 1993-10-20
Also published as: KR940008761B1

Abstract

본 고안은 칼라 음극선관용 전자총을 개시한다.The present invention discloses an electron gun for a color cathode ray tube.

전치삼극관부를 이루는 캐소오드 제어전극 및 스크린전극과, 제1유니 포턴셜형 포커스 정전렌즈를 이루는 제1,2,3포커스전극과, 제2유니 포텬셜 정전렌즈를 이루는 제3,4,5포커스전극과, 상기 제5포커스전극과 인접되게 설치되어 바이포텐셜형 포커스 정전렌즈를 형성하는 최종가속 전극을 구비하여 된 칼라 음극선관용 전자총에 관한 것으로서, 상기제1,3,5포커스전극에 소정의 포커스전압이 인가되고, 상기 제4포커스전극에는 상기 포커스전압보다 낮은 정전압이 인가되며,상기 제2포커스전극에는 편향신호에 동기하는 다이낙 포커스전압이 인가되고,상기 제2포커스전극과 상기 제4포커스전극에는 횡장형의 전자빔 통과공과 종장형의 전자빔 통과공이 각각 형성되어 된 것에 특징이 있으며 이는 전형광막에서 균일한 빔단면을 얻을 수 있어 이를 채용한 음극선관의 해상도를 향상시킬수 있는 이점을 가진다.A cathode control electrode and a screen electrode constituting the pre-triode tube portion, first, second and third focus electrodes forming a first universal focus electrostatic lens, and third, fourth and fifth focus electrodes forming a second universal electrostatic lens And a final accelerating electrode provided adjacent to the fifth focus electrode to form a bipotential focus electrostatic lens, wherein the electron gun for a color cathode ray tube is provided, and a predetermined focus voltage is applied to the first, third and fifth focus electrodes. A constant voltage lower than the focus voltage is applied to the fourth focus electrode, and a dinak focus voltage synchronized with a deflection signal is applied to the second focus electrode, and the second focus electrode and the fourth focus electrode are applied thereto. Is characterized in that a horizontal electron beam through hole and a longitudinal electron beam through hole are formed, respectively, which can obtain a uniform beam cross section in the conventional film. An advantage that can improve the resolution of the cathode ray tube.

Description

Electron gun for colored cathode ray tube

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

제2도는 본 고안에 따른 칼라 음극선관용 전자총을 도시한 것으로서,(a)는 수직단면도이고,(b)는 수평단면도이다.2 is a view showing the electron gun for the color cathode ray tube according to the present invention, (a) is a vertical cross-sectional view, (b) is a horizontal cross-sectional view.

Claims

The cathode control electrode and the screen electrode forming the pre-triode tube portion, the first, second and third focus electrodes forming the first universal focus electrostatic lens, and the third, fourth, fifth and focus electrodes forming the second unit potential electrostatic lens. And a final accelerating electrode provided adjacent to said fifth focus electrode to form a bipotential focus electrostatic lens, wherein said first, third and fifth focus electrodes (14, 16) are provided. A predetermined focus voltage vf is applied to 18, a correction voltage vs lower than the focus voltage vf is applied to the fourth focus electrode 17, and a second focusing electrode 15 is applied to the second focus electrode 15. A dynamic focus voltage (vd) in synchronization with the deflection signal is applied, and the second focusing electrode (15) and the fourth focusing electrode (17) have a horizontal electron beam through hole (20) and an elongated electron beam through hole ( 30) each of the electron gun for color cathode ray tube, characterized in that formed.

The color cathode ray tube according to claim 1, wherein the horizontal electron beam through hole (30) and the vertical electron beam through hole (30) have a rectangular shape.

※ Note: The disclosure is based on the initial application.