US3875442A - Display panel - Google Patents

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Publication number
US3875442A
US3875442A US363870A US36387073A US3875442A US 3875442 A US3875442 A US 3875442A US 363870 A US363870 A US 363870A US 36387073 A US36387073 A US 36387073A US 3875442 A US3875442 A US 3875442A
Authority
US
United States
Prior art keywords
electrodes
anode
strip
panel
wires
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.)
Expired - Lifetime
Application number
US363870A
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English (en)
Inventor
Kiyotaka Wasa
Fumio Hosomi
Shigeru Hayakawa
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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
Priority claimed from JP5527572A external-priority patent/JPS4917173A/ja
Priority claimed from JP47063400A external-priority patent/JPS4924028A/ja
Priority claimed from JP47063401A external-priority patent/JPS4924029A/ja
Priority claimed from JP12870172A external-priority patent/JPS4984781A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of US3875442A publication Critical patent/US3875442A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
    • H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
    • H01J17/492—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with crossed electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
    • H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
    • H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
    • H01J17/498—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with a gas discharge space and a post acceleration space for electrons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/38—Devices for influencing the colour or wavelength of the light
    • H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence

Definitions

  • minescent panel consisting of a transparent electrode 315/169 TV, 340/3 coated with a phosphor layer, which is positioned be- [51 Int. Cl H0lj [7/00, H05b 37/00 hi d h d (58] Field of Search 3
  • FIG.8
  • This invention relates to a display panel. and more particularly to a large flat TV panel which is a lowvoltage cathode-luminescent matrix display system in a gas plasma.
  • an object of the present invention is to provide a novel cathodeluminescent flat display panel which has a small power dissipation.
  • Another object of the present invention is to provide a novel cathodelumincscent flat panel for numerical display which has a small power dissipation.
  • a further object ol'the invention is to provide a novel cathodeluminescent matrix system for a large size flat TY panel which has a small power dissipation.
  • the objects are achie ⁇ ed by providing a display panel comprising a gastight envelope.
  • two flat planar main electrodes arranged within said gas-tight envelope parallel with each other. one of said two planar electrodes being a cold cathode and the other of said two planar electrodes being an anode.
  • FIG. I is a cross-sectional view. with the parts somewhat enlarged for clarity of a flat display panel in accordance with the present invention:
  • FIG. 2 is a diagrammatic view for showing a modified display panel for numerical display in accordance with the present invention:
  • FIG. 3 is a cross-sectional view of a flat display panel. for one picture element. in accordance with the present invention.
  • FIG. 4 is a graph illustrating operating characteristics of a tlat display panel in accordance with the present invention:
  • FIG. 5 is a diagrammatic view for showing a flat display panel in accordance with the present invention.
  • FIGS. 6 to II are diagrammatic views for showing various types ol'elcctrodes for a Ilat display panel in accordance with the present invention.
  • a display panel comprises a transparent gas-tight envelopc designated by a reference numeral 1, two planar main electrodes 2 and 3 which are arranged within said gas-tight en velopc 1 parallel with each other and a cathodeluminescent panel 4.
  • One ofthe two main electrodes. the electrode 2. is a cold cathode in the form of a metal plate. and the other electrode 3 is an anode in the form of a metal screen.
  • the cathodeluminescent panel 4 consists of a transparent glass plate 7. a transparent electrode 5 formed on said transparent glass plate 7, and a phosphor layer 6 coated on said transparent electrode 5.
  • the phosphor layer 6 is positioned be hind the anode 3. as shown in FIG. 1.
  • the phosphor layer 6 is made of. for example. zinc oxide which can be excited with low-energy electrons.
  • Operable materials for the main electrodes 2 and 3 include nickel. molybdenum. tungsten. titanium. aluminum. etc.
  • Operable materials for the transparent electrode 5 includes tin oxide. titanium oxide. indium oxide. etc.
  • the gas-tight envelope 1 contains ionizable medium. such as hydrogen. helium. krypton. neon. argon. nitrogen or mixture thereof. at a pressure ranging from l0 to II) torrs.
  • a cold-cathode glow discharge is maintained between the main electrodes 2 and 3 by a voltage Vd provided from a source 8.
  • Typical values of the voltage Vd range from 200 to 300 volts.
  • the phosphor layer 6 is immersed in a gas plasma which comes through the openings in the anode screen 3.
  • no bias circuit 9 is provided between the anode 3 and the transparent electrode 5
  • the phosphor layer 6 is surrounded by an ionic sheath and it is negatively biased below the potential of surrounding plasma. Because of this negative bias. it repels the electrons in the gas plasma and prevents them from reaching the surface of the phosphor layer 6. Therefore. the phosphor layer 6 is only slightly excited.
  • a bias circuit 9. comprising an external battery having a voltage E., of It) to 20 volts. which is connected between the anode 3 and the transparent electrode 5, as shown in FIG. I. so as to bias the transparent electrode 5 positively with respect to the surrounding plasma.
  • an electron current Id of about ImA/cm which is 50 to 70 percent of the discharge current between the main electrodes 2 and 3. flows into the transparent electrode 5 through the phosphor layer 6. and accordingly the phosphor layer 6 is excited and luminous light is emitted.
  • the phosphor layer 6 is thin enough to pass the luminescent light.
  • green cathode luminescent light is observed with a brightness of about 50 IL from the direction 11 at the back of the phosphor layer 6.
  • the brightness can be easily controlled by controlling the electron current by making the voltage Ed of the bias circuit 9 adjustable. Since the electrons in the gas plasma diffuse uniformly from the discharge region. the electron current density at the surface of the phosphor layer 6 is essentially uniform over the whole layer. This makes it possible to provide a large cathodeluminescent flat panel or flat panel light of a uniform brightness.
  • the display panel of the present invention can be made to be a numerical display panel by modifying the transparent electrode 5.
  • a numerical display panel of the invention comprises a modified transparent electrode 12 of the luminescent panel 4.
  • the transparent electrode 12 consists of seven segments insulated from each other for each numeral. In operation. a cold-cathode glow discharge is maintained between the main electrodes. similarly to FIG. 1, and a positive bias of ID to 20 volts is supplied to appropriate segments of the transparent electrode so as to display a pattern representing a number. Further. an al- 3 phabetical display panel or a graphic display panel can also be easily made by modifying the pattern of the segments of the transparent electrode.
  • a flat TV panel for a cathodeluminescent x-y matrix display system can be made by modifying the anode 3 and the transparent electrode 5 of HG. l.
  • one picture element of the .r-y matrix display system according to the invention com prises a plane cold cathode 2, three parallel anode wires 13 insulated from each other. and a transparent strip-electrode 14x.
  • the anode wires 13 consist of a central wire 13y and two end wires.
  • the strip-electrode l4. ⁇ ' and the anode wires 13 are perpendicular to each other.
  • the diameter of the anode wires 13 is. for example. 0.3mm.
  • the anode wires 13 are spaced.
  • the negative bias voltage Vp he kept in a range of to 5[) volts.
  • the brightness of the color spot is proportional to the pulse amplitude within a certain voltage limit and pro portional to the pulse width.
  • the time response for the luminescence is less than 5p. sec.
  • FIG. 5 shows a flat TV panel system according to the invention comprising a plurality of stripelectrodes 14 which are insulated with each other and a plurality of parallel metal anode wires 13 which are fixed to an insulating frame 18 and which are insulated from each other.
  • the strip-electrodes l4 and the anode wires 13 cross each other so as to form a cathodeluminescent .r-y matrix system having picture elements at a crosspoints between the strip-electrodes l4. ⁇ and the anode wires 13. In operation.
  • the anode wires and the strip-electrodes correspond to the vertical scanning electrode v-direction) and the horizontal scanning electrode (.r-direction). respectively.
  • All of the anode wires are biased positively with respect to the cathode plate 2. which is slightly below the sparking voltage between the anode wires and the cathode plate 2. For example. for a sparking voltage ol 240 volts between the anode wires and the cathode plate. the anode wires are biased at 220 volts relative to the cathode plate. below the sparking voltage by 20 volts.
  • a positive vertical scanning pulse is superposed by turns on the anode wires 13 and the anode wires are scanned during the horizontal scanning period.
  • the amplitude of the vertical scanning pulse is. for example. 40 volts.
  • a glow discharge is generated near the anodes 13.
  • a horizontal scanning pulse of a positive voltage for example lO to 20 volts.
  • the amplitude or the pulse width of which is modulated by a video signal is applied by turns to the strip-electrodes l4 synchronously with the vertical scanning pulse signal.
  • numerous green light spots corresponding to the video signal appear on the cathodeluminescent panel. It will be understood that a flat mono-color TV panel can be easily made by using the flat panel described above.
  • the scanning pulse voltage is very low. 10 to 40 volts as described hereinbefore.
  • solid-state circuits can be used for the scanning circuits.
  • the anodes not being vertically scanned are biased negatively with respect to the anode being vertically scanned. interaction between the vertical lines can be reduced.
  • the strip electrodes which are not being horizontally scanned are biased negatively with respect to the strip-electrode being horizontally scanned due to the presence of the ionic sheath as described hereinbefore. interaction between the horizontal lines can be reduced. Since the power conversion efficiency of low-voltage excited 2110 is l percent or more. the flat TV panel of the invention can be made in almost any size and yet will have a small power dissipation. The following table shows the power dissipation for various sizes of the tint panel according to the invention.
  • FIG. 6 shows examples of various forms of the anode screen 3 shown in FIG. 1. i.e. an anode screen having a strip-like structure 19. a holed structure 2], and net structure 220.
  • FIGS. 7 to It show various examples of modified form of the main electrodes shown in H6. 1.
  • a hollow cathode is used instead of the planar cathode 2 in FIG. I so as to increase the ionization efficiency between the main electrodes and also to prevent scattering and loss of the electrons in the gas discharge across the interspace between the main electrodes.
  • FIG. 8 shows another construction of the main electrodes in which the anode and the cathode consist of a plurality of parallel metal wires positioned in the same plane so as to reduce the thickness of the display panel.
  • FIGS. 9 and 10 show modified constructions of the main electrodes shown in FIG.
  • the modified main electrodes comprises cathode plate 2 having a plurality of parallel grooves. and a plurality of anode wires. the anode wires being embedded in the grooves.
  • additional grid electrode 23 is positioned at the back of the modified main electrodes shown in FIG. 8. Said additional grid electrode is negatively biased by an external battery Vg so as to prevent scattering and loss of the electrons behind the main electrodes.
  • FIG. II there is illustrated a modified cathodeluminescent panel 24 for a color flat TV panel.
  • a modified cathodeluminescent panel 24 for a color flat TV panel comprising transparent strip-electrodes 25, 26 and 27 coated with three kinds of phosphor layers. respectively and black color layer 28 having insulating properties between these strip-electrodes.
  • These phosphor layers can emit light ofthe three primary colors. for instance. red. blue and green light.
  • the modified cathodeluminescent panel 24 is used instead of the cathodeluminescent panel shown in FIG. 5.
  • the black color layer 28 can block the most of the light from the discharge between the main electrodes.
  • One of the anode wires and the three strip-electrodes 25., 16 and 27 an form a color picture element when the current density of the three strip-electrodes is modulated individually by color video signals. This makes it possible to provide a color flat panel display.
  • novel display panel. can provide not only a numerical or graphic display but also a large size flat panel having high resolving power with low-operating voltage and small power dissipations.
  • a display panel comprising a transparent gas-tight envelope. an ionizable medium in said envelope. two planar main electrodes within said gas-tight envelope lying in different planes and parallel with each other and substantially coextensive with each other. one of said two planar electrodes being a cold cathode and the other ot'said two planar electrodes being an anode. said anode consisting of a metal screen. said electrodes being for maintaining a cold cathode glow discharge therebetween when a voltage is applied thereacross.
  • cathode-luminescent panel positioned on the other side of said anode from said cathode, said cathode-luminescent panel consisting of a transparent glass plate. a transparent electrode means on said transparent glass plate. and a phosphor layer coated on said transparent electrode means. said phosphor layer being on the side of said panel toward said anode.
  • said transparent electrode means comprises at least one set consisting of seven segments insulated from each other and arranged in a pattern so as to display a numeral when certain segments are luminescent.
  • a display panel as claimed in claim I in which said transparent electrode means consists of a plurality of parallel strip-electrodes insulated from each other and said metal screen consists of a plurality of parallel anode wires insulated from each other. said stripelectrodes and said anode wires crossing with each other so as to form a cathodeluminescent .v-y matrix display system having a plurality of picture elements. each picture element of said cathodeluminescent .r-y matrix system consisting of one of said plurality of strip-electrodes and three of said plurality of anode wires. one central anode wire and two end anode wires. and bias means coupled to said anode wires biasing said two end anode wires negatively relative to said central anode wire.
  • a display panel as claimed in claim I. in which said transparent electrode means consists of a plurality of parallel strip-electrodes insulated from each other and said metal screen consists of a plurality of parallel metal wires insulated from each other. said stripelectrodes and said anode wires crossing each other so as to form a cathodeluminescent .r-y matrix display system. said anode wires and said strip-electrodes constituting the vertical scanning electrodes and the horizontal scanning electrodes of said cathodeluminescent .r-y matrix display system. respectively.
  • bias means coupled to said anode wires for biasing said anode wires positively relative to said cathode with a voltage slightly below the sparking voltage between said anode wires and said cathode.

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  • Gas-Filled Discharge Tubes (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
US363870A 1972-06-02 1973-05-25 Display panel Expired - Lifetime US3875442A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP5527572A JPS4917173A (de) 1972-06-02 1972-06-02
JP47063400A JPS4924028A (de) 1972-06-24 1972-06-24
JP47063401A JPS4924029A (de) 1972-06-24 1972-06-24
JP12870172A JPS4984781A (de) 1972-12-20 1972-12-20

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US3875442A true US3875442A (en) 1975-04-01

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US (1) US3875442A (de)
CA (1) CA976260A (de)
DE (1) DE2328849A1 (de)
FR (1) FR2186727B1 (de)
GB (1) GB1433256A (de)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204209A (en) * 1977-11-07 1980-05-20 Nippon Electric Kagoshima, Ltd. Fluorescent display device comprising a pair of anode connection groups
US4227114A (en) * 1977-02-16 1980-10-07 Zenith Radio Corporation Cathodoluminescent gas discharge image display panel
US4322659A (en) * 1979-10-10 1982-03-30 Lucitron, Inc. Gas-discharge devices and display panels
US4531122A (en) * 1982-07-14 1985-07-23 Redfield Lawrence J Flatscreen
US5186670A (en) * 1992-03-02 1993-02-16 Micron Technology, Inc. Method to form self-aligned gate structures and focus rings
US5205770A (en) * 1992-03-12 1993-04-27 Micron Technology, Inc. Method to form high aspect ratio supports (spacers) for field emission display using micro-saw technology
US5229331A (en) * 1992-02-14 1993-07-20 Micron Technology, Inc. Method to form self-aligned gate structures around cold cathode emitter tips using chemical mechanical polishing technology
US5232549A (en) * 1992-04-14 1993-08-03 Micron Technology, Inc. Spacers for field emission display fabricated via self-aligned high energy ablation
US5259799A (en) * 1992-03-02 1993-11-09 Micron Technology, Inc. Method to form self-aligned gate structures and focus rings
US5329207A (en) * 1992-05-13 1994-07-12 Micron Technology, Inc. Field emission structures produced on macro-grain polysilicon substrates
EP0680066A2 (de) * 1994-04-28 1995-11-02 Youare Electronics Co. Flache Gasanzeigeröhre
US5532177A (en) * 1993-07-07 1996-07-02 Micron Display Technology Method for forming electron emitters
US5561348A (en) * 1995-04-10 1996-10-01 Old Dominion University Field controlled plasma discharge device
EP0794549A1 (de) 1996-03-04 1997-09-10 Motorola, Inc. Verfahren zur Herstellung einer Feldemission-Vorrichtung
US5696028A (en) * 1992-02-14 1997-12-09 Micron Technology, Inc. Method to form an insulative barrier useful in field emission displays for reducing surface leakage
EP0834897A1 (de) 1996-10-04 1998-04-08 STMicroelectronics S.r.l. Herstellungsverfahren einer flachen Feldemissionsanzeige und nach diesem Verfahren hergestellte Anzeige
US5982345A (en) * 1996-02-09 1999-11-09 Tdk Corporation Organic electroluminescent image display device
US6008577A (en) * 1996-01-18 1999-12-28 Micron Technology, Inc. Flat panel display with magnetic focusing layer
US6022256A (en) * 1996-11-06 2000-02-08 Micron Display Technology, Inc. Field emission display and method of making same
US6155900A (en) * 1999-10-12 2000-12-05 Micron Technology, Inc. Fiber spacers in large area vacuum displays and method for manufacture
US6236381B1 (en) 1997-12-01 2001-05-22 Matsushita Electronics Corporation Image display apparatus
US6320310B1 (en) 1997-09-19 2001-11-20 Matsushita Electronics Corporation Image display apparatus
US6555402B2 (en) 1999-04-29 2003-04-29 Micron Technology, Inc. Self-aligned field extraction grid and method of forming
US6630782B1 (en) * 1997-12-01 2003-10-07 Matsushita Electric Industrial Co., Ltd. Image display apparatus having electrodes comprised of a frame and wires
US10116907B2 (en) * 2016-03-29 2018-10-30 The Boeing Company Methods, systems and apparatuses for optically addressed imaging system
US10209675B2 (en) 2016-03-29 2019-02-19 The Boeing Company Methods, systems and apparatuses for optically addressed holographic imaging system

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JPS52105768A (en) * 1976-03-01 1977-09-05 Ise Electronics Corp Cathode ray display panel
DE2929080A1 (de) * 1979-07-18 1981-02-05 Siemens Ag Bildanzeigevorrichtung
US4472658A (en) * 1980-05-13 1984-09-18 Futaba Denshi Kogyo Kabushiki Kaisha Fluorescent display device
DE3235724A1 (de) * 1981-10-02 1983-04-21 Futaba Denshi Kogyo K.K., Mobara, Chiba Leuchtstoff-anzeigevorrichtung

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Cited By (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4227114A (en) * 1977-02-16 1980-10-07 Zenith Radio Corporation Cathodoluminescent gas discharge image display panel
US4204209A (en) * 1977-11-07 1980-05-20 Nippon Electric Kagoshima, Ltd. Fluorescent display device comprising a pair of anode connection groups
US4322659A (en) * 1979-10-10 1982-03-30 Lucitron, Inc. Gas-discharge devices and display panels
US4531122A (en) * 1982-07-14 1985-07-23 Redfield Lawrence J Flatscreen
US5229331A (en) * 1992-02-14 1993-07-20 Micron Technology, Inc. Method to form self-aligned gate structures around cold cathode emitter tips using chemical mechanical polishing technology
US5831378A (en) * 1992-02-14 1998-11-03 Micron Technology, Inc. Insulative barrier useful in field emission displays for reducing surface leakage
US6066507A (en) * 1992-02-14 2000-05-23 Micron Technology, Inc. Method to form an insulative barrier useful in field emission displays for reducing surface leakage
DE4304103A1 (de) * 1992-02-14 1993-08-19 Micron Technology Inc
DE4304103C2 (de) * 1992-02-14 2002-02-14 Micron Technology Inc Verfahren zum Bilden selbstausgerichteter Gatestrukturen
US5696028A (en) * 1992-02-14 1997-12-09 Micron Technology, Inc. Method to form an insulative barrier useful in field emission displays for reducing surface leakage
US5372973A (en) * 1992-02-14 1994-12-13 Micron Technology, Inc. Method to form self-aligned gate structures around cold cathode emitter tips using chemical mechanical polishing technology
US5186670A (en) * 1992-03-02 1993-02-16 Micron Technology, Inc. Method to form self-aligned gate structures and focus rings
US5259799A (en) * 1992-03-02 1993-11-09 Micron Technology, Inc. Method to form self-aligned gate structures and focus rings
US5205770A (en) * 1992-03-12 1993-04-27 Micron Technology, Inc. Method to form high aspect ratio supports (spacers) for field emission display using micro-saw technology
DE4312049A1 (de) * 1992-04-14 1993-10-28 Micron Technology Inc Verfahren zum Bilden von zwischen Elektroden befindlichen Stützstrukturen
DE4312049C2 (de) * 1992-04-14 2003-05-22 Micron Technology Inc N D Ges Verfahren zum Bilden von zwischen Elektroden befindlichen Stützstrukturen
US5232549A (en) * 1992-04-14 1993-08-03 Micron Technology, Inc. Spacers for field emission display fabricated via self-aligned high energy ablation
DE4315731B4 (de) * 1992-05-13 2006-04-27 Micron Technology, Inc. (N.D.Ges.D. Staates Delaware) Halbleiteranordnung mit Makrokorn-Substrat und Verfahren zu dessen Herstellung
US5329207A (en) * 1992-05-13 1994-07-12 Micron Technology, Inc. Field emission structures produced on macro-grain polysilicon substrates
US5438240A (en) * 1992-05-13 1995-08-01 Micron Technology, Inc. Field emission structures produced on macro-grain polysilicon substrates
US7064476B2 (en) 1993-07-07 2006-06-20 Micron Technology, Inc. Emitter
US20060237812A1 (en) * 1993-07-07 2006-10-26 Cathey David A Electronic emitters with dopant gradient
US20070052339A1 (en) * 1993-07-07 2007-03-08 Cathey David A Electron emitters with dopant gradient
US20060226765A1 (en) * 1993-07-07 2006-10-12 Cathey David A Electronic emitters with dopant gradient
US6049089A (en) * 1993-07-07 2000-04-11 Micron Technology, Inc. Electron emitters and method for forming them
US6825596B1 (en) 1993-07-07 2004-11-30 Micron Technology, Inc. Electron emitters with dopant gradient
US20050023951A1 (en) * 1993-07-07 2005-02-03 Cathey David A. Electron emitters with dopant gradient
US5532177A (en) * 1993-07-07 1996-07-02 Micron Display Technology Method for forming electron emitters
EP0680066A3 (de) * 1994-04-28 1997-07-02 Youare Electronics Co Flache Gasanzeigeröhre.
US5608419A (en) * 1994-04-28 1997-03-04 Youare Electronics Co. Gas flat display tube with anode gates
EP0680066A2 (de) * 1994-04-28 1995-11-02 Youare Electronics Co. Flache Gasanzeigeröhre
US5561348A (en) * 1995-04-10 1996-10-01 Old Dominion University Field controlled plasma discharge device
US6008577A (en) * 1996-01-18 1999-12-28 Micron Technology, Inc. Flat panel display with magnetic focusing layer
US5982345A (en) * 1996-02-09 1999-11-09 Tdk Corporation Organic electroluminescent image display device
EP0794549A1 (de) 1996-03-04 1997-09-10 Motorola, Inc. Verfahren zur Herstellung einer Feldemission-Vorrichtung
EP0834897A1 (de) 1996-10-04 1998-04-08 STMicroelectronics S.r.l. Herstellungsverfahren einer flachen Feldemissionsanzeige und nach diesem Verfahren hergestellte Anzeige
US6022256A (en) * 1996-11-06 2000-02-08 Micron Display Technology, Inc. Field emission display and method of making same
US6181060B1 (en) 1996-11-06 2001-01-30 Micron Technology, Inc. Field emission display with plural dielectric layers
US6320310B1 (en) 1997-09-19 2001-11-20 Matsushita Electronics Corporation Image display apparatus
US6630782B1 (en) * 1997-12-01 2003-10-07 Matsushita Electric Industrial Co., Ltd. Image display apparatus having electrodes comprised of a frame and wires
US6236381B1 (en) 1997-12-01 2001-05-22 Matsushita Electronics Corporation Image display apparatus
US6555402B2 (en) 1999-04-29 2003-04-29 Micron Technology, Inc. Self-aligned field extraction grid and method of forming
US6155900A (en) * 1999-10-12 2000-12-05 Micron Technology, Inc. Fiber spacers in large area vacuum displays and method for manufacture
US6447354B1 (en) 1999-10-12 2002-09-10 Micron Technology, Inc. Fiber spacers in large area vacuum displays and method for manufacture
US6280274B1 (en) 1999-10-12 2001-08-28 Micron Technology, Inc. Fiber spacers in large area vacuum displays and method for manufacture
US6561864B2 (en) 1999-10-12 2003-05-13 Micron Technology, Inc. Methods for fabricating spacer support structures and flat panel displays
US10116907B2 (en) * 2016-03-29 2018-10-30 The Boeing Company Methods, systems and apparatuses for optically addressed imaging system
US10209675B2 (en) 2016-03-29 2019-02-19 The Boeing Company Methods, systems and apparatuses for optically addressed holographic imaging system
US10567714B2 (en) 2016-03-29 2020-02-18 The Boeing Company Methods, systems and apparatuses for optically addressed imaging system
US10678189B2 (en) 2016-03-29 2020-06-09 The Boeing Company Methods, systems and apparatuses for optically addressed holographic imaging system

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DE2328849B2 (de) 1978-03-23
GB1433256A (en) 1976-04-22
DE2328849A1 (de) 1973-12-20
FR2186727B1 (de) 1977-02-11
FR2186727A1 (de) 1974-01-11
CA976260A (en) 1975-10-14

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