KR930024075A - Projection CRT - Google Patents

Projection CRT Download PDF

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Publication number
KR930024075A
KR930024075A KR1019920007977A KR920007977A KR930024075A KR 930024075 A KR930024075 A KR 930024075A KR 1019920007977 A KR1019920007977 A KR 1019920007977A KR 920007977 A KR920007977 A KR 920007977A KR 930024075 A KR930024075 A KR 930024075A
Authority
KR
South Korea
Prior art keywords
face panel
projection
projection crt
crt tube
peripheral portions
Prior art date
Application number
KR1019920007977A
Other languages
Korean (ko)
Other versions
KR950001083B1 (en
Inventor
김상묵
조철식
박재범
Original Assignee
박경팔
삼성전관 주식회사
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 박경팔, 삼성전관 주식회사 filed Critical 박경팔
Priority to KR1019920007977A priority Critical patent/KR950001083B1/en
Publication of KR930024075A publication Critical patent/KR930024075A/en
Application granted granted Critical
Publication of KR950001083B1 publication Critical patent/KR950001083B1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes

Landscapes

  • Transforming Electric Information Into Light Information (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

이 발명은 고화질 텔레비젼에 사용되는 투사형 브라운관의 페이스 판넬의 구조에 관한 것으로서, 페이스판넬의 내면 주변부(12),(12')가 구면으로 형성되어 형광막(11)에 충돌된 빔에 의하여 발산된 빛이 집중되고, 중심부(13)이 플레트하게 형성되어 편향 궤적과의 오차가 줄어 포커싱 및 휘도가 상승되는 효과가 있다.The present invention relates to a structure of a face panel of a projection type CRT tube used for high-definition television, wherein the inner peripheral portions 12 and 12 'of the face panel are spherically formed and emitted by a beam impinging on the fluorescent film 11. Light is concentrated, and the center portion 13 is formed in a flat manner, thereby reducing an error with a deflection trajectory, thereby increasing focusing and brightness.

Description

투사형 브라운관Projection CRT

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

제3도 및 제4도는 이 발명에 따른 투사형 브라운관의 일실시예를 나타내는 단면도이다.3 and 4 are cross-sectional views showing one embodiment of the projection type tube according to the present invention.

Claims (2)

내면에 형광면이 도포된 페이스 판넬이 사용되는 투사형 브라운관에 있어서, 상기페이스 판넬(10)의 주변부(12),(12')가 구면으로 형성되고, 페이스 판넬(10)의 중심부(13)가 플레트하게 형성됨을 특징으로 하는 투사형 브라운관.In a projection CRT tube in which a face panel coated with a fluorescent surface is used on an inner surface, peripheral portions 12 and 12 'of the face panel 10 are formed in a spherical shape, and a central portion 13 of the face panel 10 is formed in a flat surface. Projection type CRT tube, characterized in that formed. 제1항에 있어서, 페이스 판넬(10)의 중심부(13)의 플레트한 부분이 라스터 면적의 10~50%인 투사형 브라운관.The projection CRT according to claim 1, wherein the flat portion of the central portion (13) of the face panel (10) is 10 to 50% of the raster area. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920007977A 1992-05-12 1992-05-12 Crt KR950001083B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920007977A KR950001083B1 (en) 1992-05-12 1992-05-12 Crt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920007977A KR950001083B1 (en) 1992-05-12 1992-05-12 Crt

Publications (2)

Publication Number Publication Date
KR930024075A true KR930024075A (en) 1993-12-21
KR950001083B1 KR950001083B1 (en) 1995-02-08

Family

ID=19332965

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920007977A KR950001083B1 (en) 1992-05-12 1992-05-12 Crt

Country Status (1)

Country Link
KR (1) KR950001083B1 (en)

Also Published As

Publication number Publication date
KR950001083B1 (en) 1995-02-08

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