KR930024068A

KR930024068A - Electron gun for colored cathode ray tube

Info

Publication number: KR930024068A
Application number: KR1019920008471A
Authority: KR
Inventors: 손완재
Original assignee: 박경팔; 삼성전관 주식회사
Priority date: 1992-05-19
Filing date: 1992-05-19
Publication date: 1993-12-21
Also published as: KR940010988B1

Abstract

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

본 발명은 전치삼극관부를 이루는 캐소오드, 제어전극 및 스크린 전극과 보조렌즈를 이루는 제1,2,3,4포커스전극과 상기 제4포커스전극과 인접되게 설치되어 메인렌즈를 이루는 최종가속전극을 구비하여 된 칼라 음극선관용 전자총에 관한 것으로, 상기 제1,3포커스전극의 출사측면에 각각 종장형의 전자빔 통과공을 형성하고 상기 제3,4포커스전극의 입사측면에 횡장형의 전자빔통과을 각각 형성하며, 상기 제2포커스전극에는 소정의 정전압을 인가하고, 상기 제3포커스전극에는 상기 정전압보다 높은 포커스전압을 인가하며, 상기 제1,4포커스전극에는 편향신호에 동기하는 다이나믹 포커스전압을 인가하여 된 것에 특징이 있으며, 이는 전 형광막에서 균일한 전자빔단면을 얻을 수 있는 이점을 가진다.The present invention includes a cathode, a control electrode, a screen electrode, and a first, second, third, and four focus electrodes forming an auxiliary lens and a final accelerating electrode forming a main lens adjacent to the fourth focus electrode. The electron gun for the color cathode ray tube is formed, and each of the elongated electron beam through-holes is formed on the exit sides of the first and third focus electrodes, and the transverse electron beam passes are formed on the incident sides of the third and fourth focus electrodes. A predetermined constant voltage is applied to the second focus electrode, a focus voltage higher than the constant voltage is applied to the third focus electrode, and a dynamic focus voltage synchronized with a deflection signal is applied to the first and fourth focus electrodes. It is characterized by the fact that it is possible to obtain a uniform electron beam cross section in the entire fluorescent film.

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 발명에 따른 칼라 음극선관용 전자총을 도시한 것으로, (가)는 수직, 수편단면이 중심선을 중심으로 결합한 단면도로서 전압인가 상태를 나타낸 것이고, (나)는 (가)에 도시된 전자총에 의해 형광막에 랜딩되는 전자의 단면을 가시화시켜 나타내 보인 것이다.2 is a cross-sectional view showing the electron gun for the color cathode ray tube according to the present invention, (A) is a cross-sectional view of the vertical, one-sided section coupled to the center line showing the state of voltage applied, (B) is the electron gun shown in (A) By visualizing the cross section of the electrons landing on the fluorescent film.

Claims

The first, second, third, and four focus electrodes forming the cathode, the control electrode, the screen electrode, and the auxiliary lens forming the preliminary triode are disposed adjacent to the fourth focus electrode to form a main electrostatic lens. In the electron gun for a color cathode ray tube, an elongated electron beam through hole 14H (16H ') is formed in the emission side surfaces 14a and 16b of the first and third focus electrodes 14 and 16, respectively. On the incidence side surfaces 16a and 17a of the 3 and 4 focus electrodes 16 and 17, horizontal electron beam passing holes 16H and 17H are formed, respectively, and the second focus electrode 15 has a predetermined constant voltage. (VS) is applied to the third focus electrode (16), a focus voltage (VF) higher than the constant voltage (VS) is applied, and the first and fourth focus electrodes (14, 17) are synchronized with a deflection signal. An electron gun for a color cathode ray tube, characterized by applying a dynamic focus voltage (VD).

The electron gun for a color cathode ray tube according to claim 1, wherein the second focus electrode (15) is applied on the coin with the skine electrode (13).

The electron gun for color cathode ray tubes according to claim 1, wherein the dynamic focus voltage VD is higher than the focus voltage VF.

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