WO1998013852A3 - Display device based on indirectly heated thermionic cathodes - Google Patents

Display device based on indirectly heated thermionic cathodes Download PDF

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Publication number
WO1998013852A3
WO1998013852A3 PCT/US1997/016729 US9716729W WO9813852A3 WO 1998013852 A3 WO1998013852 A3 WO 1998013852A3 US 9716729 W US9716729 W US 9716729W WO 9813852 A3 WO9813852 A3 WO 9813852A3
Authority
WO
WIPO (PCT)
Prior art keywords
display device
techniques
display
indirectly heated
dewer
Prior art date
Application number
PCT/US1997/016729
Other languages
French (fr)
Other versions
WO1998013852A2 (en
Inventor
Frank Albert Bilan
Jules Joseph Jelinek
Original Assignee
Frank Albert Bilan
Jules Joseph Jelinek
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 Frank Albert Bilan, Jules Joseph Jelinek filed Critical Frank Albert Bilan
Priority to AU45850/97A priority Critical patent/AU4585097A/en
Publication of WO1998013852A2 publication Critical patent/WO1998013852A2/en
Publication of WO1998013852A3 publication Critical patent/WO1998013852A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/24—Insulating layer or body located between heater and emissive material
    • 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
    • H01J29/04—Cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/19—Thermionic cathodes
    • H01J2201/193—Thin film cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/28—Heaters for thermionic cathodes
    • H01J2201/2803—Characterised by the shape or size
    • H01J2201/2878—Thin film or film-like
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2329/00—Electron emission display panels, e.g. field emission display panels

Abstract

A novel self-supporting flat display screen based on thermionic emission of indirectly heated cathode structures (23, 30, 31, 32, 34; 230, 32, 34) is provided utilizing micro-filament heaters (21) that can be interconnected in any predetermined manner. The planar micro-filament (21) construction utilizes Dewer and Dewer-like techniques (10, 11, 12, 13, 14, 15) for controlling the thermal energy emitted and lowering the power consumption of a display device. Several control electrode techniques (42, 52, 33, 133, 142) are also incorporated in the invention to reduce the voltage levels required to control the display and simplify the overall electronic control circuitry needed by the display device. These techniques are combined to provide a high intensity, high contrast flat panel display using low voltage off-the-shelf electronic driver circuitry.
PCT/US1997/016729 1996-09-27 1997-09-18 Display device based on indirectly heated thermionic cathodes WO1998013852A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU45850/97A AU4585097A (en) 1996-09-27 1997-09-18 Display device based on indirectly heated thermionic cathodes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/722,337 US5831382A (en) 1996-09-27 1996-09-27 Display device based on indirectly heated thermionic cathodes
US08/722,337 1996-09-27

Publications (2)

Publication Number Publication Date
WO1998013852A2 WO1998013852A2 (en) 1998-04-02
WO1998013852A3 true WO1998013852A3 (en) 1998-08-06

Family

ID=24901438

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/016729 WO1998013852A2 (en) 1996-09-27 1997-09-18 Display device based on indirectly heated thermionic cathodes

Country Status (3)

Country Link
US (1) US5831382A (en)
AU (1) AU4585097A (en)
WO (1) WO1998013852A2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6897855B1 (en) * 1998-02-17 2005-05-24 Sarnoff Corporation Tiled electronic display structure
US6737790B2 (en) * 1998-05-19 2004-05-18 Canon Kabushiki Kaisha Image forming apparatus having a heat insulating member
JP2000111715A (en) * 1998-10-01 2000-04-21 Canon Inc Reflecting optical device and image pickup device using the device
ITTO20010341A1 (en) * 2001-04-10 2002-10-10 Fiat Ricerche MICROFILAMENT MATRIX LIGHT SOURCE.
US7105200B2 (en) * 2001-09-10 2006-09-12 Noritake Co., Limited Method of producing thick-film sheet member
JP2003151471A (en) * 2001-10-31 2003-05-23 Lg Philips Displays Korea Co Ltd Color flat display element
US6979105B2 (en) * 2002-01-18 2005-12-27 Leysath Joseph A Light device with photonic band pass filter
KR100444512B1 (en) * 2002-01-25 2004-08-16 엘지전자 주식회사 Method For Removing Impurities Of Plasma Display Panel
JP4217428B2 (en) * 2002-05-31 2009-02-04 キヤノン株式会社 Display device
JP3944155B2 (en) * 2003-12-01 2007-07-11 キヤノン株式会社 Electron emitting device, electron source, and manufacturing method of image display device
US10615599B2 (en) 2018-07-12 2020-04-07 John Bennett Efficient low-voltage grid for a cathode
US10566168B1 (en) * 2018-08-10 2020-02-18 John Bennett Low voltage electron transparent pellicle

Citations (4)

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Publication number Priority date Publication date Assignee Title
GB1033448A (en) * 1964-05-05 1966-06-22 Philips Electronic Associated Improvements in the manufacture of indirectly-heated cathodes
US3745403A (en) * 1971-11-30 1973-07-10 Hitachi Ltd Direct heating cathode structure for electron tubes
US3935500A (en) * 1974-12-09 1976-01-27 Texas Instruments Incorporated Flat CRT system
US4069436A (en) * 1975-06-11 1978-01-17 Sony Corporation Flat thermionic cathode

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US3710165A (en) * 1970-07-03 1973-01-09 Tokyo Shibaura Electric Co Shadow mask perforated along intersection of side wall and reinforcing flange
JPS5235491B2 (en) * 1972-02-16 1977-09-09
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US4020381A (en) * 1974-12-09 1977-04-26 Texas Instruments Incorporated Cathode structure for a multibeam cathode ray tube
US3979635A (en) * 1975-02-05 1976-09-07 Texas Instruments Incorporated Charged particle beam scanning device
US4118650A (en) * 1977-04-14 1978-10-03 Texas Instruments Incorporated Internally supported flat tube display
US4227117A (en) * 1978-04-28 1980-10-07 Matsuhita Electric Industrial Co., Ltd. Picture display device
US4333035A (en) * 1979-05-01 1982-06-01 Woodland International Corporation Areal array of tubular electron sources
EP0024656B1 (en) * 1979-08-16 1984-03-21 Kabushiki Kaisha Toshiba Flat display device
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DE3235724A1 (en) * 1981-10-02 1983-04-21 Futaba Denshi Kogyo K.K., Mobara, Chiba FLUORESCENT DISPLAY DEVICE
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US4577133A (en) * 1983-10-27 1986-03-18 Wilson Ronald E Flat panel display and method of manufacture
FR2568394B1 (en) * 1984-07-27 1988-02-12 Commissariat Energie Atomique DEVICE FOR VIEWING BY CATHODOLUMINESCENCE EXCITED BY FIELD EMISSION
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JPS62150638A (en) * 1985-12-24 1987-07-04 Mitsubishi Electric Corp Vacuum container for flat matrix type crt
US4857799A (en) * 1986-07-30 1989-08-15 Sri International Matrix-addressed flat panel display
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1033448A (en) * 1964-05-05 1966-06-22 Philips Electronic Associated Improvements in the manufacture of indirectly-heated cathodes
US3745403A (en) * 1971-11-30 1973-07-10 Hitachi Ltd Direct heating cathode structure for electron tubes
US3935500A (en) * 1974-12-09 1976-01-27 Texas Instruments Incorporated Flat CRT system
US4069436A (en) * 1975-06-11 1978-01-17 Sony Corporation Flat thermionic cathode

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PROCEEDINGS OF THE SID., vol. 22, no. 2, 1986, PLAYA DEL REY, CA US, pages 125 - 131, XP002051541 *

Also Published As

Publication number Publication date
AU4585097A (en) 1998-04-17
US5831382A (en) 1998-11-03
WO1998013852A2 (en) 1998-04-02

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