By Gettering Patents (Class 445/41)
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Patent number: 11930668Abstract: It is an object to provide a flexible light-emitting device with long lifetime in a simple way and to provide an inexpensive electronic device with long lifetime using the flexible light-emitting device. A flexible light-emitting device is provided, which includes a substrate having flexibility and a light-transmitting property with respect to visible light; a first adhesive layer over the substrate; an insulating film containing nitrogen and silicon over the first adhesive layer; a light-emitting element including a first electrode, a second electrode facing the first electrode, and an EL layer between the first electrode and the second electrode; a second adhesive layer over the second electrode; and a metal substrate over the second adhesive layer, wherein the thickness of the metal substrate is 10 ?m to 200 ?m inclusive. Further, an electronic device using the flexible light-emitting device is provided.Type: GrantFiled: November 22, 2021Date of Patent: March 12, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kaoru Hatano, Satoshi Seo, Takaaki Nagata, Tatsuya Okano
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Patent number: 8484932Abstract: A method for establishing a vacuum in a container includes the following steps. The container having an exhaust through hole defined therein is provided. A sealing cover including a connecting material located on the periphery of the sealing cover is provided. The sealing cover is spaced from the exhaust through hole for form at least gaps between the sealing cover and the exhaust through hole. A vacuum is established in the container. The connecting material is heated. The sealing cover covers the exhaust through hole and the connecting material is cooled. After that the container is packaged.Type: GrantFiled: May 7, 2009Date of Patent: July 16, 2013Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Peng Liu, Pi-jin Chen, Cai-Lin Guo, Bing-chu Du, Liang Liu, Shou-Shan Fan
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Patent number: 8314553Abstract: A discharge lamp comprising a holed metallic structure that serves as a support for an amalgam Bi—In—X—Hg, a method for controlling pressure of mercury within discharge lamps and a process for manufacturing of the lamps are described.Type: GrantFiled: April 12, 2011Date of Patent: November 20, 2012Assignee: Saes Getters S.p.A.Inventors: Alessio Corazza, Vincenzo Massaro, Stefano Paolo Giorgi
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Patent number: 8123583Abstract: The present invention relates to a method for producing a discharge lamp using a two-stage filling process.Type: GrantFiled: August 1, 2007Date of Patent: February 28, 2012Assignee: Osram AGInventors: Lothar Hitzschke, Frank Vollkommer
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Patent number: 7985114Abstract: A method for making a field emission lamp generally includes the steps of: (a) providing a cathode emitter; (b) providing a transparent glass tube having a carbon nanotube transparent conductive film and a fluorescent layer, wherein the carbon nanotube transparent conductive film and the fluorescent layer are both disposed on an inner surface of the transparent glass tube; (c) providing a first glass feedthrough, a second glass feedthrough, and a nickel pipe, wherein the first glass feedthrough has an anode down-lead pad and an anode down-lead pole connected to the anode down-lead pad, and the second glass feedthrough has a cathode down-lead pole; (d) securing the nickel pipe to one end of the cathode emitter and securing the other end of the cathode emitter to one end of the cathode down-lead pole of the second glass feedthrough; and (e) melting and assembling the first and second glass feedthroughs to ends of the transparent glass tube respectively.Type: GrantFiled: December 5, 2007Date of Patent: July 26, 2011Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Yang Wei, Lin Xiao, Feng Zhu, Liang Liu, Shou-Shan Fan
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Patent number: 7959483Abstract: Provided is a manufacturing method of forming an airtight container including an electron beam irradiation process for irradiating an electron beam to a non-evaporable type getter that has not been activated so as not to activate the non-evaporable type getter, and a sealing process for sealing a seal portion after the electron beam irradiation process.Type: GrantFiled: May 13, 2009Date of Patent: June 14, 2011Assignee: Canon Kabushiki KaishaInventors: Takayuki Sekine, Yoichi Ando, Yasue Sato, Makoto Kojima, Kota Iwasaki
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Patent number: 7927167Abstract: The present invention provides a getter material configured by a pressed powder mixture comprising Ba—Al alloy powder and Ni powder, wherein when the pressed powder mixture is heated in a vacuum atmosphere or an inert gas atmosphere, a temperature at which an exothermic reaction starts is ranging from 750° C. to 900° C. According to this getter material, since the temperature at which the pressed powder mixture starts the exothermic reaction is set within a range from 750° C. to 900° C., there can be provided a getter material and an evaporation type getter device capable of suitably controlling an evaporation amount of getter components under a stable condition, and is excellent in responsiveness because a time ranging from a starting time of heating the getter material to a starting time of evaporation of the getter components can be shortened.Type: GrantFiled: July 19, 2010Date of Patent: April 19, 2011Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Hiromichi Horie, Yoshiyuki Fukuda, Hiromasa Kato, Nobuaki Nakashima, Yasuhisa Makino
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Publication number: 20100039032Abstract: The frame that holds a discharge vessel in an outer bulb is manufactured from Nb or Zr, said frame acting as getter in an evacuated outer bulb.Type: ApplicationFiled: June 4, 2009Publication date: February 18, 2010Applicant: OSRAM Gesellschaft mit beschrankter HaftungInventor: Dieter TRYPKE
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Patent number: 7500897Abstract: In an image display device having in an airtight container an electron source and an image display member that receives electrons from the electron source, an evaporating getter and a non-evaporating getter are stacked in the airtight container. This makes it possible to maintain the vacuum level in the airtight container. The image display device thus obtains a prolonged life and a stable display operation.Type: GrantFiled: June 27, 2006Date of Patent: March 10, 2009Assignee: Canon Kabushiki KaishaInventors: Mitsutoshi Hasegawa, Ihachiro Gofuku, Masaki Tokioka, Kazuya Shigeoka, Tokutaka Miura
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Patent number: 7494604Abstract: The invention is directed to a thick film getter composition comprising: (a) desiccant material; dispersed in (b) organic medium comprising (1) curable organic polymeric binder; (2) monomer; and (3) photoinitiator.Type: GrantFiled: March 24, 2008Date of Patent: February 24, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Yong Cho, Jay Robert Dorfman
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Patent number: 7371335Abstract: The invention is directed to a thick film getter composition comprising: (a) desiccant material; dispersed in (b) organic medium comprising (1) curable organic polymeric binder; (2) monomer; and (3) photoinitiator.Type: GrantFiled: October 21, 2004Date of Patent: May 13, 2008Assignee: E.I. duPont de Nemours and CompanyInventors: Yong Cho, Jay Robert Dorfman
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Patent number: 7152433Abstract: A method of manufacturing an image display apparatus is provided and includes the steps of bringing panel members that constitute a display panel of the image display apparatus into a bake processing chamber, subjecting to bake processing the display panel members, lowering a temperature of the display panel members, and bringing the display panel members into a seal-bonding processing chamber. Seal-bonding processing is conducted by local heating to a seal-bonding portion.Type: GrantFiled: August 6, 2002Date of Patent: December 26, 2006Assignee: Canon Kabushiki KaishaInventor: Kohei Nakata
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Patent number: 7131883Abstract: A field emission display (FED) and a manufacturing method thereof are provided. The FED includes a getter portion isolated outwardly from an active display region. This getter portion includes a non-evaporable getter layer for absorbing gas and an electron emission source for activating the getter layer. Accordingly, by activating the non-evaporable getter, the gas generated in the display is easily absorbed, and the FED is maintained in a high vacuum state.Type: GrantFiled: September 7, 2005Date of Patent: November 7, 2006Assignee: Samsung SDI Co., Ltd.Inventors: Nam-sin Park, Sung-hwan Jin, Hyun-ji Lee
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Patent number: 6888294Abstract: The invention concerns a device comprising at least one field effect electron source within a sealed structure, which encompasses an internal space that contains a reducing gas whose purpose is to prevent oxidation of the emissive material of the electron source, whereby the reducing gas is a gas with the formula NxHy where x=1 or 2 and y=3 or 4, and which is advantageously under a pressure of between 10?8 and 10?1 mbar. It also concerns manufacturing processes for such a device and apparatuses for implementing these processes.Type: GrantFiled: April 26, 2000Date of Patent: May 3, 2005Assignee: Commissariat a l'Energie AtomiqueInventors: Robert Meyer, Jean-François Boronat, Michel Levis
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Patent number: 6860779Abstract: A method for manufacturing an airtight vessel seals an evacuation tube after evacuating the inside of the vessel using the evacuation tube. A getter previously disposed in the vessel is activated followed by fusing a part of the evacuation tube to seal the vessel while heating the vessel.Type: GrantFiled: May 11, 1999Date of Patent: March 1, 2005Assignee: Canon Kabushiki KaishaInventors: Hidehiko Fujimura, Toru Aruga, Masaaki Ogura
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Patent number: 6851997Abstract: The present invention relates to a process for depositing a calcium getter thin film inside a system operating under vacuum. The process comprises the steps of introducing into the system under vacuum at least one evaporable getter device with an air-stable calcium compound. The system is evacuated until a pressure value P1 is reached. The system is then heated up to the calcium evaporation temperature of the stable compound. The system evacuation continues until a pressure value P2, which is lower than P1, is reached and the system is sealed. In a preferred embodiment, the heating step separates the two evacuation steps.Type: GrantFiled: November 14, 2002Date of Patent: February 8, 2005Assignee: SAES Getters S.p.A.Inventors: Corrado Carretti, Giorgio Longoni
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Publication number: 20040169469Abstract: Disclosed are a non-evaporation type getter excellent in gettering effect, capable of maintaining the inside of a gas-tight container in a display apparatus, particularly a flat panel display apparatus or the like, in a high vacuum condition, easy to mount and less liable to contaminate the inside of the gas-tight container, a display apparatus including the getter, and methods of manufacturing the same. The non-evaporation type getter (20) includes a molded body including at least one element selected from the group consisting of Ti, Zr, Al, V, and Fe as a principal constituent thereof, the molded body formed by powder injection molding. The molded body is composed of a porous body having a porosity of 10 to 30%.Type: ApplicationFiled: December 31, 2003Publication date: September 2, 2004Inventor: Yoji Hasegawa
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Publication number: 20040135505Abstract: In an image display device having in an airtight container an electron source and an image display member that receives electrons from the electron source, an evaporating getter and a non-evaporating getter are stacked in the airtight container. This makes it possible to maintain the vacuum level in the airtight container. The image display device thus obtains a prolonged life and a stable display operation.Type: ApplicationFiled: July 23, 2003Publication date: July 15, 2004Applicant: CANON KABUSHIKI KAISHAInventors: Mitsutoshi Hasegawa, Ihachiro Gofuku, Masaki Tokioka, Kazuya Shigeoka, Tokutaka Miura
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Patent number: 6717363Abstract: The formation of leachable mercury upon disposal in a landfill or during TCLP testing of mercury vapor discharge lamps is substantially prevented by incorporation of an amount of gelatin or a degradation product of gelatin which is effective to substantially prevent formation of ferric and cuprous compounds responsible for forming leachable mercury compounds.Type: GrantFiled: August 1, 2001Date of Patent: April 6, 2004Assignee: General Electric CompanyInventors: Donald Franklin Foust, David Key Dietrich, Deborah Ann Haitko
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Patent number: 6652343Abstract: An image display apparatus is provided with an external housing constituted by members including first and second substrates positioned with a gap therebetween, an electron source positioned on the first substrate in the external housing, and a fluorescent film and an accelerating electrode provided on the second substrate. A first getter is positioned in the image display area in the external housing. A second getter is provided, so that it is insulated from the electron source and the accelerating electrode, which surrounds the first getter.Type: GrantFiled: April 5, 2002Date of Patent: November 25, 2003Assignee: Canon Kabushiki KaishaInventors: Mitsutoshi Hasegawa, Ihachiro Gofuku, Yasuhiro Hamamoto, Kazuya Shigeoka, Yutaka Arai
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Patent number: 6648710Abstract: A low temperature process for silicon-based field emitter tip sharpening. A rough silicon-based field emitter tip is exposed to xenon difluoride gas in a process chamber to carry out low-temperature, isotropic etching of the rough silicon-based field emitter tip to produce a final, sharpened field emitter tip.Type: GrantFiled: June 12, 2001Date of Patent: November 18, 2003Assignee: Hewlett-Packard Development Company, L.P.Inventors: Donald J. Milligan, John Stephen Dunfield
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Patent number: 6607417Abstract: A suction device used in aging process of a microwave tube includes an ion pump and a suction unit respectively connected to an electron gun and a collector located in two opposite ends of the microwave tube. The suction unit includes a barrel communicated with the microwave tube and a getter disposed in the barrel. An electric power source is electrically connected to the getter. Before operation, the microwave tube along with the suction device undergo exhaust process on a heating exhaust station. After that, the electric power source supplies an electric current to electrify and heat the getter to its activation condition. Therefore, the suction device can greatly save the vacuum suction time of the aging process and the cost associated with the production of the microwave tube.Type: GrantFiled: November 5, 2001Date of Patent: August 19, 2003Assignee: Air Asia Technology Inc.Inventor: Han-Ying Chen
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Publication number: 20030148696Abstract: An image display appratus is manufactured by processing a panel member through a plurality of chambers including ones for a bake processing and a getter processing. The getter processng is performed at a temperature lower than a temperature of the panel member subjected to the bake processing, to prevent degrading of a getter film.Type: ApplicationFiled: January 17, 2003Publication date: August 7, 2003Inventors: Tetsuya Kaneko, Kohei Nakata, Toshihiko Miyazaki
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Patent number: 6565401Abstract: A getter film is formed on an inner surface of a funnel portion of a cathode ray tube, and an inner conductor of the cathode ray tube is heated by a heating unit. According to this heating, the gas which is physically adsorbed by the inner conductor of the cathode ray tube other than the getter film is discharged and then chemically adsorbed again by the getter film, whereby a degree of vacuum in the cathode ray tube can be increased.Type: GrantFiled: June 1, 2000Date of Patent: May 20, 2003Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Takeshi Sugano, Etsushi Adachi, Chikayuki Nakamura, Wataru Imanishi
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Publication number: 20030092347Abstract: The present invention relates to a process for depositing a calcium getter thin film inside a system operating under vacuum. The process comprises the steps of introducing into the system under vacuum at least one evaporable getter device with an air-stable calcium compound. The system is evacuated until a pressure value P1 is reached. The system is then heated up to the calcium evaporation temperature of the stable compound. The system evacuation continues until a pressure value P2, which is lower than P1, is reached and the system is sealed. In a preferred embodiment, the heating step separates the two evacuation steps.Type: ApplicationFiled: November 14, 2002Publication date: May 15, 2003Inventors: Corrado Carretti, Giorgio Longoni
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Patent number: 6531818Abstract: The invention proposes a pumping tube shape which makes it possible, on the one hand, to guide the pumping tube when positioning the latter on the tile and when producing the seal by heating and, on the other hand, to prevent runs inside the pumping hole. Moreover, the pumping tube of the invention makes it possible to produce an almost ideally distributed homogeneous seal, thereby ensuring that the latter seals reliably. The invention also relates to a plasma display panel having the pumping tube of the invention.Type: GrantFiled: July 12, 2000Date of Patent: March 11, 2003Assignee: Thomson Licensing S. A.Inventor: Alain Normanni
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Publication number: 20030038597Abstract: An object of the present invention is to provide a non-evaporating getter which can maintain the adsorbability for the residual gases, and in addition, can secure sufficient characteristics particularly even when it experiences a high-temperature and low-vacuum condition in the fabrication process of a display unit.Type: ApplicationFiled: August 16, 2002Publication date: February 27, 2003Inventors: Masaki Tokioka, Mitsutoshi Hasegawa, Kazuya Shigeoka, Yutaka Arai
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Patent number: 6517403Abstract: The apparatus for sealing face plates (753) and cathodes (754) has three stations (701, 702, 703). The first (701) is a preheater, the second (702) is an alignment and irradiation station and the third (703) is a controlled cooling station. Beneath each station, a vacuum pump (710) capable of drawing ultralow pressures is provided. The preheater is equipped with upper and lower banks of radiant heaters and reflectors (712). The upper heaters are Provided above a quartz: window (713) of a chamber (714) constituting the station. The pressure in the preheater is pumped down to that in the alignment and irradiation station prior to opening of the gate valve between them and transfer of the face plate and cathode. At the alignment and irradiation station, further heaters (716) are provided.Type: GrantFiled: March 31, 2000Date of Patent: February 11, 2003Inventors: Anthony John Cooper, Floyd R Pothoven
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Patent number: 6459198Abstract: A method of fabricating a high vacuum display with flat form factor, and the display, include an envelope with two major, parallel spaced apart glass sides and a continuous edge therebetween. An opening is formed through one of the glass sides of the envelope. A plate is provided with an area larger than the opening in the envelope. A button with an area slightly smaller than the opening may be formed on one side of the plate. A low temperature melting material is positioned on the plate around the button and the envelope is positioned in a substantial vacuum. The button is placed in the opening with the plate abutting the glass side outside of the envelope and the low temperature melting material is melted using heat and/or pressure to sealingly engage the button within the opening.Type: GrantFiled: May 17, 2000Date of Patent: October 1, 2002Assignee: Motorola, Inc.Inventors: Kenneth A. Dean, Babu R. Chalamala, Dave Uebelhoer, Craig Amrine
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Publication number: 20020109460Abstract: An image display apparatus is provided with an external housing constituted by members including first and second substrates positioned with a gap therebetween, an electron source positioned on the first substrate in the external housing, and a fluorescent film and an accelerating electrode provided on the second substrate. A first getter is positioned in the image display area in the external housing. And a second getter is so provided as to be insulated from the electron source and the accelerating electrode and as to surround the first getter.Type: ApplicationFiled: April 5, 2002Publication date: August 15, 2002Inventors: Mitsutoshi Hasegawa, Ihachiro Gofuku, Yasuhiro Hamamoto, Kazuya Shigeoka, Yutaka Arai
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Publication number: 20020111103Abstract: A front substrate and a rear substrate are laid on each other with a sealing frit therebetween. The front substrate, the rear substrate and the sealing frit are heated in a chamber and impurity gas is exhausted from both of the substrates by lowering internal pressure of the chamber. The sealing frit is melted in the chamber by further heating the front substrate, the rear substrate and the sealing frit. The sealing frit is solidified in the chamber and sealing up the front substrate and the rear substrate.Type: ApplicationFiled: January 22, 2002Publication date: August 15, 2002Applicant: NEC CORPORATIONInventors: Tsuneo Konishi, Ken Ito
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Patent number: 6383050Abstract: The invention provides a getter of high performance capable of immediately absorbing a gas generated in an image forming apparatus, and an image forming apparatus exhibiting little luminance variation with the lapse of time and little luminance fluctuation. It also provides a method for producing a getter at a low temperature not effecting other components and in an arbitrary position in a simple manner with a low cost, thereby being adaptable to various processes. The invention relates to a process for forming a non-evaporative getter by a gas deposition method, and to a method of producing an image forming apparatus provided with an electron source, an image forming member for forming an image by irradiation with an electron beam emitted from the electron source, and a non-evaporative getter in a container, which comprises forming the non-evaporative getter by the above-mentioned process for forming the non-evaporative getter.Type: GrantFiled: January 11, 2000Date of Patent: May 7, 2002Assignee: Canon Kabushiki KaishaInventors: Junri Ishikura, Ihachiro Gofuku, Mitsutoshi Hasegawa
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Publication number: 20020042240Abstract: A method for manufacturing an airtight vessel seals an evacuation tube after evacuating the inside of the vessel using the evacuation tube. A getter previously disposed in the vessel is activated followed by fusing a part of the evacuation tube to seal the vessel while heating the vessel.Type: ApplicationFiled: May 11, 1999Publication date: April 11, 2002Inventors: HIDEHIKO FUJIMURA, TORU ARUGA, MASAAKI OGURA
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Publication number: 20020039870Abstract: In a method of manufacturing an image display apparatus, a first member having an electron-emitting device and a second member having a phosphor which is irradiated with an electron emitted from the electron-emitting device to emit light are seal-bonded in a seal bonding chamber in which a vacuum atmosphere is realized. An aging step for the electron-emitting device is performed before the step of seal-bonding.Type: ApplicationFiled: September 24, 2001Publication date: April 4, 2002Inventors: Tetsuya Kaneko, Kohei Nakata, Toshihiko Miyazaki
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Publication number: 20020013115Abstract: In a flat panel display containing a getter material, the getter material is activated during the sealing step, and is partially consumed, if the getter activation temperature is lower than the sealing temperature. On the other hand, a very small part of the getter material is activated if the getter activation temperature is higher than the sealing temperature.Type: ApplicationFiled: July 16, 2001Publication date: January 31, 2002Applicant: SAES GETTERS JAPAN CO., Ltd.Inventor: Chiharu Maeda
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Publication number: 20020004354Abstract: An image display appratus is manufactured by processing a panel member through a plurality of chambers including ones for a bake processing and a getter processing. The getter processng is performed at a temperature lower than a temperature of the panel member subjected to the bake processing, to prevent degrading of a getter film.Type: ApplicationFiled: March 21, 2001Publication date: January 10, 2002Inventors: Tetsuya Kaneko, Kohei Nakata, Toshihiko Miyazaki
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Publication number: 20010036789Abstract: A method for cleaning by plasma at least one electrode of a field effect flat display screen, consisting of causing the generation of a plasma in an internal space separating two parallel plates respectively forming the screen bottom and surface, and each supporting at least one electrode, before placing this internal space under vacuum and definitively closing it.Type: ApplicationFiled: February 26, 2001Publication date: November 1, 2001Inventor: Denis Vion
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Patent number: 6283815Abstract: An electron source comprises one or more electron-emitting devices, especially of surface conduction type, and is provided with means for supplying an activating substance to device(s). The means comprises preferably a substance source and a heater or electron beam generator for gasifying the substance source. The electron source can be combined with an image-forming member (e.g. fluorecent body) to constitute an image-forming apparatus. The means is used for in situ activation or re-activation of the electron-emitting device(s).Type: GrantFiled: July 12, 1999Date of Patent: September 4, 2001Assignee: Canon Kabushiki KaishaInventors: Tatsuya Iwasaki, Toshikazu Ohnishi
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Patent number: 6186849Abstract: A process is disclosed for making grids for flat-panel displays. The screen grids are coated with non-evaporable getter materials and the metal sheet forming the grid is coated with a coating that is as thick as the resulting grid and having at least the same surface area as the image formation zone of the flat-panel display. At least one side of the grid is coated with one or more non-evaporable getter materials and then parts of the sheet thereby coated are selectively removed. Some embodiments of grids produced with such a process are also disclosed.Type: GrantFiled: October 17, 1999Date of Patent: February 13, 2001Assignee: Saes Getters S.p.A.Inventor: Alessio Corazza
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Patent number: 6172460Abstract: Display device, in particular a PALC device, having a plasma space provided with a capsule (46) comprising getter material for supplying guest material to the plasma, e.g. H2, HD, D2. The capsule remains closed until the critical high temperature processing has been finished.Type: GrantFiled: June 4, 1999Date of Patent: January 9, 2001Assignee: U.S. Philips CorporationInventors: Johannes P. M. Damen, Ronald Van Rijswijk, Cornelus H. M. Van Bommel
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Patent number: 6149484Abstract: A field emission display (400) includes a cathode plate (410), an anode plate (430), and a mechanical support/getter assembly (300) being disposed between the cathode plate (410) and the anode plate (430). The mechanical support/getter assembly (300) includes a unitary spacer/frame assembly (310) made from a photosensitive glass. A method for fabricating the mechanical support/getter assembly (300) includes the steps of: selectively exposing inter-spacer regions (110) and a getter frame region (120) of a layer (100) of the photosensitive glass to UV radiation, heating the layer (100) to crystallize the UV-exposed regions, and removing the crystallized inter-spacer regions (110) and partially removing the crystallized getter frame regions by contacting the layer (100) with an acid, thereby forming spacer ribs (314) and a getter land (322). The method further includes providing a getter frame (320) on the spacer land (322).Type: GrantFiled: June 5, 1998Date of Patent: November 21, 2000Assignee: Motorola, Inc.Inventors: Craig Amrine, Clifford L. Anderson, Ronald O. Petersen
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Patent number: 6139390Abstract: A getter (50) situated in a cavity of a hollow structure (40-46), such as a flat-panel device, is activated by directing light energy locally through part of a hollow structure and onto the getter. The light energy is typically provided by a laser beam (60). The getter, typically of the non-evaporable type, is usually inserted as a single piece of gettering material into the cavity. The getter normally can be activated/re-activated multiple times in this manner, typically during the sealing of different parts of the structure together.Type: GrantFiled: December 12, 1996Date of Patent: October 31, 2000Assignee: Candescent Technologies CorporationInventors: Floyd R. Pothoven, Anthony J. Cooper, Igor L. Maslennikov
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Patent number: 6100640Abstract: A getter wire formed in a closed configuration in a vacuum sealed package is inductively heated until it evaporates, thereby forming a thin film on the inner walls of the package to getter gas molecules within the sealed package.Type: GrantFiled: May 20, 1998Date of Patent: August 8, 2000Assignee: Micron Technology, Inc.Inventors: David A. Cathey, Danny Dynka
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Patent number: 6042443Abstract: A process for producing a field emitter flat display includes providing a supported porous layer of a non-evaporable getter material by depositing the non-evaporable getter material on a substrate followed by sintering the deposited material. The substrate having the porous layer of non-evaporable getter material thereon is then housed in an inner space defined by opposing plates. The inner space is then evacuated and hermetically sealed. The non-evaporable getter material is preferably deposited by preparing a suspension of non-evaporable getter material particles in a suspending medium, coating a surface of a substrate with the suspension by, e.g., spraying, and sintering the coating.Type: GrantFiled: May 27, 1999Date of Patent: March 28, 2000Assignee: Saes Getters S.P.A.Inventors: Sergio Carella, Claudio Boffito
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Patent number: 6033278Abstract: The present invention provides an FED with a getter material deposited and activated on the substrates of the faceplate and the baseplate of the FED. In one embodiment of the invention, a large FED includes a faceplate, a baseplate, and an unactivated non-evaporable getter material. The faceplate has a transparent substrate with an inner surface, and a cathodoluminescent material disposed on a portion of the inner surface. The baseplate has a base substrate with a first surface and an emitter array formed on the first surface. The baseplate and the faceplate are coupled together to form a sealed vacuum space in which the inner surface and the first surface are juxtaposed to one another in a spaced-apart relationship across a vacuum gap. The unactivated non-evaporating getter material is deposited directly on the inner surface and/or the first surface.Type: GrantFiled: July 31, 1998Date of Patent: March 7, 2000Assignee: Micron Technology, Inc.Inventors: Charles M. Watkins, David A. Cathey
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Patent number: 5973445Abstract: A FED is provided comprising: an emitter located on a cathode; a pixel located on an anode positioned to receive electrons from the emitter; and a getter located on the anode. According to another aspect of the invention, a method of making an FED is provided comprising: depositing getter material over a tip on a cathode; assembling the cathode with an anode, wherein the getter is between the tip and the anode; and activating the getter, whereby the activation causes the getter to be deposited on the anode.Type: GrantFiled: February 1, 1999Date of Patent: October 26, 1999Assignee: Micron Technology, Inc.Inventor: Charles Martin Watkins
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Patent number: 5964630Abstract: A flat-panel device is fabricated by a process in which a pair of plate structures (40 and 42) are sealed along their interior surfaces (40A and 42B) to opposite edges (44A and 44B) of an outer wall (44) to form a compartment. Subsequently, exterior support structure (64) is attached to the exterior surface of one of the plate structures (40) to significantly increase resistance of the compartment to bending. Exterior support structure (66) is normally likewise attached to the exterior surface of the other plate structure (42) after the sealing operation. The compartment is then typically pumped down to a high vacuum through a suitable pump-out port (46) and closed.Type: GrantFiled: December 23, 1996Date of Patent: October 12, 1999Assignee: Candescent Technologies CorporationInventors: Marko M. G. Slusarczuk, Duane A. Haven, Christopher J. Curtin, Theodore S. Fahlen
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Patent number: 5934964Abstract: A process for producing a field emitter flat display includes providing a supported porous layer of a non-evaporable getter material by depositing the non-evaporable getter material on a substrate followed by sintering the deposited material. The substrate having the porous layer of non-evaporable getter material thereon is then housed in an inner space defined by opposing plates. The inner space is then evacuated and hermetically sealed. The non-evaporable getter material is preferably deposited by preparing a suspension of non-evaporable getter material particles in a suspending medium, coating a surface of a substrate with the suspension by, e.g., spraying, and sintering the coating.Type: GrantFiled: April 15, 1996Date of Patent: August 10, 1999Assignee: SAES Getters S.p.A.Inventors: Sergio Carella, Claudio Boffito
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Patent number: 5865658Abstract: A FED is provided comprising: an emitter located on a cathode; a pixel located on an anode positioned to receive electrons from the emitter; and a getter located on the anode. According to another aspect of the invention, a method of making an FED is provided comprising: depositing getter material over a tip on a cathode; assembling the cathode with an anode, wherein the getter is between the tip and the anode; and activating the getter, whereby the activation causes the getter to be deposited on the anode.Type: GrantFiled: September 28, 1995Date of Patent: February 2, 1999Assignee: Micron Display Technology, Inc.Inventor: Charles Martin Watkins
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Patent number: 5849442Abstract: A new method for forming an anode plate for a color flat panel Field Emission Displays (FEDs) having improved gettering, was accomplished. The method involves forming on a transparent insulating plate (glass) an array of pixels of three phosphors comprising the primary colors and having in or/and around the array of pixels gettering material to provide more efficient gettering of volatile material from the FED cavity. The electrons are injected into the pixels when the electron field emitters are electrically accessed via the address and image forming circuits. The injected electrons heat and activate the gettering material in and around the pixels and provide very effective gettering in the FED cavity.Type: GrantFiled: August 18, 1997Date of Patent: December 15, 1998Assignee: Industrial Technology Research InstituteInventors: David Nan-Chou Liu, Jammy Chin-Ming Huang, Jyh-Haur Tyan