KR930024054A

KR930024054A - Shadow mask structure for color cathode ray tube

Info

Publication number: KR930024054A
Application number: KR1019920007744A
Authority: KR
Inventors: 이원균
Original assignee: 이헌조; 주식회사 금성사
Filing date: 1992-05-07
Publication date: 1993-12-21

Abstract

본 발명은 칼라음극선관용 새도우마스크 구조체에 관한 것으로 전자빔이 통과하는 다수의 개공이 배열된 새도우마스크부와, 그를 지지하는 프레임부가 하나의 금속판재에 의하여 일체로 형성되고, 상기 프레임부의 내측면에는 새도우마스크부와 프레임부의 열팽창계수 차이를 보상해 주기 위한 열팽창 보상판이 부착됨과 아울러 외측면에 일단부에 판넬의 스터드핀에 삽입되는 고정공이 구비된 수개의 스프링이 부착된 구성으로 되어 있으며, 상기 새도우마스크부와 프레임부의 경계면에는 V자형홈이 형성되어 있다.The present invention relates to a shadow mask structure for a color cathode ray tube, wherein a shadow mask portion in which a plurality of openings through which an electron beam passes is arranged, and a frame portion supporting the same is integrally formed by one metal plate, and a shadow is formed on an inner surface of the frame portion. A thermal expansion compensation plate is attached to compensate for the difference in coefficient of thermal expansion of the mask portion and the frame portion, and a plurality of springs are provided on the outer surface with fixing holes inserted into the stud pins of the panel at one end thereof. A V-shaped groove is formed at the interface between the portion and the frame portion.

이와같이 된 본 발명에 의하면, 전자빔의 방출 초기부터 새도우마스크의 전면이 균일하게 열팽창되므로 랜딩안정시간을 단축할 수 있고 초기화면을 안정화시킬수 있으며, 제조공정을 줄일 수 있는 효과도 있다.According to the present invention as described above, since the entire surface of the shadow mask is uniformly thermally expanded from the initial emission of the electron beam, the landing stability time can be shortened, the initial screen can be stabilized, and the manufacturing process can be reduced.

Description

Shadow mask structure for color cathode ray tube

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

제5도는 본 발명에 의한 칼라음극선관용 새도우마스크 구조체의 사시도, 제6도는 본 발명에 의한 새도우마스크 구조체를 판넬에 설치한 상태의 요부단면도, 제7도는 본 발명에 의한 새도우마스크 구조체의 열팽창에 의한 변위 설명도.FIG. 5 is a perspective view of a shadow mask structure for a color cathode ray tube according to the present invention, and FIG. 6 is a sectional view of a main part in a state where the shadow mask structure according to the present invention is installed on a panel, and FIG. 7 is a thermal mask expansion of the shadow mask structure according to the present invention. Displacement diagram.

Claims

The shadow mask portion 11 in which a plurality of openings through which the electron ice passes is arranged, and the frame portion 12 supporting it are integrally formed by a single metal plate, and a shadow is formed on the inner surface of the frame portion 12. The thermal expansion compensation plate 13 is attached to compensate for the difference in thermal expansion coefficient between the mask portion 11 and the frame portion 12, and the outer surface is fixed to the stud pin 14a of the panel 14 at one end thereof. Shadow mask structure for a color cathode ray tube, characterized in that the ball (15a) is provided with a plurality of springs (15) attached.

The shadow mask structure for a color cathode ray tube according to claim 1, wherein a V-shaped groove (16) is formed at an interface between the shadow mask portion (11) and the frame portion (12).

The shadow mask structure for a color cathode ray tube according to claim 1, wherein the thermal expansion compensation plate (13) is a metal plate having a high thermal expansion coefficient greater than the thermal expansion coefficient of the shadow mug portion (11).

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