KR960008933A - CRT's Shadow Mask Howling Prevention Device - Google Patents

CRT's Shadow Mask Howling Prevention Device Download PDF

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Publication number
KR960008933A
KR960008933A KR1019940020030A KR19940020030A KR960008933A KR 960008933 A KR960008933 A KR 960008933A KR 1019940020030 A KR1019940020030 A KR 1019940020030A KR 19940020030 A KR19940020030 A KR 19940020030A KR 960008933 A KR960008933 A KR 960008933A
Authority
KR
South Korea
Prior art keywords
shadow mask
crt
prevention device
howling prevention
vibration
Prior art date
Application number
KR1019940020030A
Other languages
Korean (ko)
Other versions
KR970010038B1 (en
Inventor
최길열
Original Assignee
이헌조
엘지전자 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 이헌조, 엘지전자 주식회사 filed Critical 이헌조
Priority to KR1019940020030A priority Critical patent/KR970010038B1/en
Publication of KR960008933A publication Critical patent/KR960008933A/en
Application granted granted Critical
Publication of KR970010038B1 publication Critical patent/KR970010038B1/en

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Classifications

    • 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
    • H01J2229/0738—Mitigating undesirable mechanical effects
    • H01J2229/0744—Vibrations

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

본 발명은 브라운관의 새도우 마스크(Shadow Mask) 하울링 방지장치에 관한 것으로서, 좀더 구체적으로는 새도우마스크의 진동에 의한 휘도변화 및 색채변화가 발생되는 것을 방지할 수 있도록 한 것이다.The present invention relates to a shadow mask howling prevention device of a CRT, and more specifically, to prevent a change in luminance and color due to vibration of a shadow mask.

이를 위해, 본 발명은 새도우마스크(1)의 비유효면(4)과 스커트부(2)의 절곡부분을 따라 요입되거나, 돌출된 주름살(5)을 반복되게 형성하여 새도우마스크의 유효면으로 전달되는 진동을 줄임과 동시에 탄성계수를 증가시켜 새도우마스크의 주변부에 작용되는 고유진동수를 고주파 대역으로 이동시키도록 된 것이다.To this end, the present invention is formed along the bent portion of the non-effective surface (4) and the skirt portion 2 of the shadow mask (1), or repeatedly formed protruding wrinkles (5) to transfer to the effective surface of the shadow mask At the same time to reduce the vibration to increase the elastic modulus is to move the natural frequency acting on the periphery of the shadow mask in the high frequency band.

Description

브라운관의 섀도우마스크 하울링 방지장치CRT's Shadow Mask Howling Prevention Device

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

제4도는 본 발명의 장치가 적용된 섀도우마스크의 사시도.4 is a perspective view of a shadow mask to which the apparatus of the present invention is applied.

제5도는 제4도의 B부 확대도.5 is an enlarged view of a portion B of FIG.

Claims (1)

섀도우마스크의 비유효면과 스커트부의 절곡부분을 따라 요입되거나, 돌출된 주름살을 반복되게 형성하여서 된 브라운관의 섀도우마스크 하울링 방지장치.A shadow mask howling prevention device of a CRT formed by repeatedly forming an ineffective surface of a shadow mask and a bent portion of a skirt or protruding wrinkles. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940020030A 1994-08-13 1994-08-13 Shadow mask for color picture tube KR970010038B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940020030A KR970010038B1 (en) 1994-08-13 1994-08-13 Shadow mask for color picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940020030A KR970010038B1 (en) 1994-08-13 1994-08-13 Shadow mask for color picture tube

Publications (2)

Publication Number Publication Date
KR960008933A true KR960008933A (en) 1996-03-22
KR970010038B1 KR970010038B1 (en) 1997-06-20

Family

ID=19390326

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940020030A KR970010038B1 (en) 1994-08-13 1994-08-13 Shadow mask for color picture tube

Country Status (1)

Country Link
KR (1) KR970010038B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100357169B1 (en) * 2000-01-06 2002-10-19 엘지전자주식회사 Color cathode ray tube
KR20220117085A (en) * 2021-02-16 2022-08-23 주식회사 이보 Sound Transmitting Device for Mask

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100357169B1 (en) * 2000-01-06 2002-10-19 엘지전자주식회사 Color cathode ray tube
KR20220117085A (en) * 2021-02-16 2022-08-23 주식회사 이보 Sound Transmitting Device for Mask

Also Published As

Publication number Publication date
KR970010038B1 (en) 1997-06-20

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