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WO2006091267A3 - Cathode ray tube having shadow mask with instant geometric thermal transition compensation - Google Patents

Cathode ray tube having shadow mask with instant geometric thermal transition compensation Download PDF

Info

Publication number
WO2006091267A3
WO2006091267A3 PCT/US2005/046672 US2005046672W WO2006091267A3 WO 2006091267 A3 WO2006091267 A3 WO 2006091267A3 US 2005046672 W US2005046672 W US 2005046672W WO 2006091267 A3 WO2006091267 A3 WO 2006091267A3
Authority
WO
WIPO (PCT)
Prior art keywords
mask
instant
skirt
border
shadow mask
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US2005/046672
Other languages
French (fr)
Other versions
WO2006091267A2 (en
Inventor
Louis Emmanuel Matalon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thomson Licensing SAS
Original Assignee
Thomson Licensing SAS
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 Thomson Licensing SAS filed Critical Thomson Licensing SAS
Publication of WO2006091267A2 publication Critical patent/WO2006091267A2/en
Publication of WO2006091267A3 publication Critical patent/WO2006091267A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H01J29/073—Mounting arrangements associated with shadow masks

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

Disclosed is a cathode ray tube having a shadow mask with doming reduction features. The shadow mask has a limited mask border and skirt region and has instant geometric compensation feature. The limited mask border and skirt region permits the border to quickly heat and expand and cool and contract as freely as the mask. The instant geometric compensation feature translates any movement due to thermal expansion of the mask to the mask border and skirt in such a manner to maintain electron beam register. The instant geometric compensation feature requires certain portions of the skirt be in contact with the mask frame and angle away from the longitudinal axis of the shadow mask. As the mask expands, the angled portions of the skirt in contact with the mask frame flex to diminish the angle with the longitudinal axis and cause the mask to move towards a luminescent screen to such an extent that electron beam register is effectively maintained.
PCT/US2005/046672 2005-02-24 2005-12-22 Cathode ray tube having shadow mask with instant geometric thermal transition compensation Ceased WO2006091267A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US65644705P 2005-02-24 2005-02-24
US60/656,447 2005-02-24

Publications (2)

Publication Number Publication Date
WO2006091267A2 WO2006091267A2 (en) 2006-08-31
WO2006091267A3 true WO2006091267A3 (en) 2007-01-18

Family

ID=36591255

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/046672 Ceased WO2006091267A2 (en) 2005-02-24 2005-12-22 Cathode ray tube having shadow mask with instant geometric thermal transition compensation

Country Status (1)

Country Link
WO (1) WO2006091267A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0795886A2 (en) * 1996-03-11 1997-09-17 Hitachi, Ltd. Color cathode ray rube
EP0881659A2 (en) * 1997-05-30 1998-12-02 Kabushiki Kaisha Toshiba Color cathode-ray tube
EP1091381A2 (en) * 1999-10-08 2001-04-11 Hitachi, Ltd. Color cathode ray tube
US20020017850A1 (en) * 1998-06-26 2002-02-14 Hiroshi Ito Color cathode ray tube having a shadow mask structure
US6356010B1 (en) * 1998-06-18 2002-03-12 Mitsubishi Denki Kabushiki Kaisha Color picture tube having a shadow mask with specified resonance frequency parameters

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0795886A2 (en) * 1996-03-11 1997-09-17 Hitachi, Ltd. Color cathode ray rube
EP0881659A2 (en) * 1997-05-30 1998-12-02 Kabushiki Kaisha Toshiba Color cathode-ray tube
US6356010B1 (en) * 1998-06-18 2002-03-12 Mitsubishi Denki Kabushiki Kaisha Color picture tube having a shadow mask with specified resonance frequency parameters
US20020017850A1 (en) * 1998-06-26 2002-02-14 Hiroshi Ito Color cathode ray tube having a shadow mask structure
EP1091381A2 (en) * 1999-10-08 2001-04-11 Hitachi, Ltd. Color cathode ray tube

Also Published As

Publication number Publication date
WO2006091267A2 (en) 2006-08-31

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