KR970029974A - Shadow mask manufacturing method of cathode ray tube and shadow mask accordingly - Google Patents

Shadow mask manufacturing method of cathode ray tube and shadow mask accordingly Download PDF

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Publication number
KR970029974A
KR970029974A KR1019950041571A KR19950041571A KR970029974A KR 970029974 A KR970029974 A KR 970029974A KR 1019950041571 A KR1019950041571 A KR 1019950041571A KR 19950041571 A KR19950041571 A KR 19950041571A KR 970029974 A KR970029974 A KR 970029974A
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KR
South Korea
Prior art keywords
shadow mask
ray tube
cathode ray
flat
etching
Prior art date
Application number
KR1019950041571A
Other languages
Korean (ko)
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KR100206275B1 (en
Inventor
박영호
Original Assignee
엄길용
오리온전기 주식회사
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Application filed by 엄길용, 오리온전기 주식회사 filed Critical 엄길용
Priority to KR1019950041571A priority Critical patent/KR100206275B1/en
Publication of KR970029974A publication Critical patent/KR970029974A/en
Application granted granted Critical
Publication of KR100206275B1 publication Critical patent/KR100206275B1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
    • H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of shadow-masks for colour television tubes
    • 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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/07—Shadow masks
    • H01J2229/0727—Aperture plate
    • H01J2229/0766—Details of skirt or border

Abstract

새도우마스크의 스커트부를 더욱 소성변형을 일으켜 그 스커트부의 스프링백과 전면 곡률부의 역 R을 최소화시킬 수 있는 새도우마스크 제조방법 및 이에 따른 새도우마스크를 제공한다.The present invention provides a shadow mask manufacturing method and a shadow mask according to which the skirt portion of the shadow mask is further plastically deformed to minimize the spring back of the skirt portion and the reverse R of the front curvature portion.

그 음극선관의 새도우마스크 제조방법은, 프레스 성형을 위한 소정 형상의 플랫새도우마스크로 블랭킹하는 블랭킹단계 ; 그 플랫새도우마스크의 전면곡률부에 소정 배열구조의 애퍼쳐(슬리트)를 에칭하고 그 플랫새도우마스크의 위치를 소정 형상으로 하프에 칭하는 에칭단계 ; 그리고 그 에칭단계를 거친 플랫새도우마스크를 소정형상의 새도우마스크로 성형하는 프레스성형단계를 포함하며, 이에 의해 제조된 음극선관의 새도우마스크는 하프에칭후 프레스성형됨으로써 주름부가 스커트부에 형성되게 된다.The shadow mask manufacturing method of the cathode ray tube includes a blanking step of blanking a flat shadow mask having a predetermined shape for press molding; An etching step of etching apertures (slits) of a predetermined arrangement into the front curvature of the flat shadow mask and calling the flat shadow mask at a half in a predetermined shape; And a press molding step of forming the flat shadow mask that has undergone the etching step into a shadow mask of a predetermined shape, wherein the shadow mask of the cathode ray tube manufactured is press-molded after half etching to form wrinkles in the skirt portion.

이에 따라, 스커트부의 스프링백을 최소화시켜 프레임과의 조립성을 향상시킬 수 있을 뿐만 아니라, 전면곡률부의 역 R 생성을 최대한으로 방지시킬 수 있어, 새도우마스크의 품위를 향상시킬 수 있으며, 특히 수상관의 대형화, 평면화에 따른 새도우마스크의 제조를 용이하게 할 수 있는 등의 효과가 있다.As a result, the springback of the skirt can be minimized to improve the assemblability with the frame, and the reverse curvature of the front curvature can be prevented to the maximum, thereby improving the quality of the shadow mask. There is an effect that can facilitate the manufacture of the shadow mask according to the increase in size, planarization.

Description

음극선관의 새도우마스크 제조방법 및 이에 따른 새도우마스크Shadow mask manufacturing method of cathode ray tube and shadow mask accordingly

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 프레스포밍금형에 의한 새도우마스크의 성형상태를 도시한 금형장치의 정면도.2 is a front view of a mold apparatus showing a shaping state of a shadow mask by a press forming mold.

제3도는 본 발명에 따른 새도우마스크 성형용 플랫새도우마스크의 평면도.3 is a plan view of a flat shadow mask for forming a shadow mask according to the present invention.

제4(a)도는 본 발명에 따라 성형된 새도우마스크의 사시도이고, (b)는 그 코너측벽부의 부분확대도.4 (a) is a perspective view of a shadow mask molded according to the present invention, and (b) is a partially enlarged view of the corner side wall portion thereof.

Claims (4)

음극선관의 새도우마스크 제조방법에 있어서 ; 프레스 성형을 위한 소정형상의 플랫새도우마스크로 블랭킹하는 블랭킹단계 ; 그 플랫새도우마스크의 전면곡률부에 소정 배열구조의 애퍼쳐(슬리트)를 에칭하고 그 플랫새도우마스크의 위치를 소정 형상으로 하프에칭하는 에칭단계 ; 그리고 그 에칭단계를 거친 플랫새도우마스크를 소정 형상의 새도우마스크로 성형하는 프레스성형단계를 포함하는 것을 특징으로 하는 음극선관의 새도우마스크 제조방법.In the shadow mask manufacturing method of the cathode ray tube; A blanking step of blanking with a flat shadow mask of a predetermined shape for press molding; An etching step of etching an aperture (slit) having a predetermined arrangement structure on the front curvature of the flat shadow mask and half-etching the position of the flat shadow mask in a predetermined shape; And a press molding step of forming the flat shadow mask which has undergone the etching step into a shadow mask having a predetermined shape. 제1항에 있어서, 상기 에칭단계에서의 하프에칭이 플랫새도우마스크의 4코너 스커트부에서 실시되는 것을 특징으로 하는 음극선관의 새도우마스크 제조방법.The shadow mask manufacturing method of claim 1, wherein the half etching in the etching step is performed at four corner skirt portions of the flat shadow mask. 음극선관의 새도우마스크에 있어서 ; 하프에칭후 프레스형성되어 주름부가 스커트부에 형성된 것을 특징으로 하는 음극선관의 새도우마스크.In the shadow mask of a cathode ray tube; The shadow mask of the cathode ray tube, characterized in that the press-formed half-etched and formed in the skirt portion. 제3항에 있어서, 상기 주름부가 스커트부의 4코너부에 형성된 것을 특징으로 하는 음극선관의 새도우마스크 제조방법.The shadow mask manufacturing method of claim 3, wherein the corrugation portion is formed at four corner portions of the skirt portion.
KR1019950041571A 1995-11-16 1995-11-16 Shadowmask of crt and manufacture thereof KR100206275B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950041571A KR100206275B1 (en) 1995-11-16 1995-11-16 Shadowmask of crt and manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950041571A KR100206275B1 (en) 1995-11-16 1995-11-16 Shadowmask of crt and manufacture thereof

Publications (2)

Publication Number Publication Date
KR970029974A true KR970029974A (en) 1997-06-26
KR100206275B1 KR100206275B1 (en) 1999-07-01

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KR1019950041571A KR100206275B1 (en) 1995-11-16 1995-11-16 Shadowmask of crt and manufacture thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000073835A (en) * 1999-05-14 2000-12-05 김순택 Manufacturing method of shadow mask for cathode ray tube
KR100414480B1 (en) * 2001-02-01 2004-01-07 엘지전자 주식회사 Color cathode-ray tube containing improved shadow mask

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000073835A (en) * 1999-05-14 2000-12-05 김순택 Manufacturing method of shadow mask for cathode ray tube
KR100414480B1 (en) * 2001-02-01 2004-01-07 엘지전자 주식회사 Color cathode-ray tube containing improved shadow mask

Also Published As

Publication number Publication date
KR100206275B1 (en) 1999-07-01

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