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公开(公告)号：JPH08273517A
公开(公告)日：1996-10-18
申请号：JP9416895
申请日：1995-03-29
Applicant: CANON KK
Inventor： HAMAMOTO YASUHIRO , YAMAMOTO KEISUKE , YAMANOBE MASATO , TSUKAMOTO TAKEO
Abstract: PURPOSE: To provide a conductive surface electron emitting element, as an electron beam source and having high brightness, high fineness, and obtainable of a high quality picture image without uneven brightness, when the screen size is increased for a picture image forming device. CONSTITUTION: In this conductive surface electron emitting element, an electron emitting part 2 is provided on a conductive thin coat 3 over element electrodes 4 and 5 formed on a base plate 1. The electron emitting part 2 is arranged only in the vicinity of the different level part of the element electrode 5 portion, a part being formed thick, and a control electrode 7 is arranged via an insulating layer 6 onto the element electrode 5 in the vicinity of the electron emitting part 2. Consequently, the attraction of an emitted electron to a high electric potential side element electrode can be prevented, by making drive with the element electrode 5 made to have high electric potential and the element electrode 4 and control electrode 7 made to have low electric potential, thereby improving an electron emitting efficiency.
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92.发明专利
公开(公告)号：JPH08264112A
公开(公告)日：1996-10-11
申请号：JP8775995
申请日：1995-03-22
Applicant: CANON KK
Inventor： HAMAMOTO YASUHIRO , YAMANOBE MASATO , YAMAMOTO KEISUKE
Abstract: PURPOSE: To form a film having a high fusing point and high resistance to a strong electric field so as to improve the electron emission efficiency and durability by making the carbon and carbon compounds on the conductive film on an electron emitting part and in the vicinity of both its potential sides high crystal. CONSTITUTION: Element electrodes 4 and 5 and a conductive film 3 are made on a substrate by specified treatment process, and an electron emission part 2 is made by applying a current between the element electrodes 4 and 5 and partially transmuting the conductivity 3. Next, a film 6 including crystalline carbon is stacked on the electron emission part 2 and on both potential sides in its vicinity by the activation processing by applying AC voltage pulses having specified crest values, under the atmosphere where a carbon compounds exists. Furthermore, successively, it is given high crystal property by applying emitted electrons to carbon and carbon compound. Hereby, a film, which has a high fusing point and high resistance to a strong electric field, can be made on the electron emission part 2 and a both-conductivity film 3 in its vicinity.
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公开(公告)号：JPH07192610A
公开(公告)日：1995-07-28
申请号：JP34592693
申请日：1993-12-24
Applicant: CANON KK
Inventor： HAMAMOTO YASUHIRO
IPC: H01J9/02
Abstract: PURPOSE:To manufacture in a good yield an electron emitting element having a uniform electron emitting characteristic with good repeatability by performing calculation based on an electric characteristic of a thin film and its shape information, and creating a control signal of applied voltage in a current carrying process. CONSTITUTION:A power unit 11 generates voltage, and voltage applied to an electron emitting part forming thin film 24 and current quantity of flowing in the thin film are measured by an electric measuring device 12, to feed a measured value to a control device 15. Information of an element surface is input by an image input device 13, and this input shape information is fed to the control device 15 via image processing by an image processor 14. Voltage is applied across electrodes 22, 23 of an element, and by performing forming, an electron emitting part is provided in the electron emitting part forming thin film 24 between the element electrodes, to create the electron emitting element.
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公开(公告)号：JPH06231674A
公开(公告)日：1994-08-19
申请号：JP3245293
申请日：1993-01-29
Applicant: CANON KK
Inventor： TAKEDA TOSHIHIKO , SUZUKI HIDETOSHI , HAMAMOTO YASUHIRO , NOMURA ICHIRO , IWAI HISAMI , SAKANO YOSHIKAZU
Abstract: PURPOSE:To provide an electron emitting element which can be manufactured with excellent reproducibility kept, and can be driven at low voltage. CONSTITUTION:An electron emitting element is provided, which is composed of a flatness substrate 11, an electron emitting electrode 13 including a projected section 12 provided over the aforesaid substrate, and of a drawer electrode 14 including a voltage application means which is provided at a position close to the aforesaid projected section while being faced to the projected section. The surface of the drawer electrode is shielded with ultra particulates 15 composed of conductive material.
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公开(公告)号：JP2001076650A
公开(公告)日：2001-03-23
申请号：JP2000218208
申请日：2000-07-19
Applicant: CANON KK
Inventor： HASEGAWA MITSUTOSHI , GOFUKU IHACHIROU , ARAI YOSHITAKA , HAMAMOTO YASUHIRO , SHIGEOKA KAZUYA
Abstract: PROBLEM TO BE SOLVED: To provide an image display device having electron sources less liable to aged deterioration in electron emitting characteristic and having brightness less liable to aging changes (age deterioration), and to provide a manufacturing method thereof. SOLUTION: This image display device is equipped with an enclosure 5, made up of members including a first substrate 1 and a second substrate 6 spaced therefrom, electron sources disposed on the first substrate 1 in the enclosure 5, and a phosphor film 7 and an acceleration electrode 8, disposed on the second substrate 6. First getters 9 are disposed inside an image displaying area X in the enclosure 5, and second getters 14 insulated from the electron sources and from the acceleration electrode are disposed so as to surround the first getters 9.
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Patent Agency Ranking
公开(公告)号：JP2000133174A
公开(公告)日：2000-05-12
申请号：JP30520898
申请日：1998-10-27
Applicant: CANON KK
Inventor： GOFUKU IHACHIROU , HASEGAWA MITSUTOSHI , HAMAMOTO YASUHIRO , SHIGEOKA KAZUYA , ARAI YOSHITAKA
Abstract: PROBLEM TO BE SOLVED: To provide an image display device capable of inhibiting deterioration of element characteristics as the amount of electrons emitted from electron emission elements becomes stable, and restraining brightness from decreasing and becoming uneven. SOLUTION: To manufacture an image forming device in which an electron source substrate 1 with a plurality of electron emission elements aligned thereon and a faceplate 4 having a fluorescent film 7 are opposed together to form an envelope 5, a nonevaporative getter 9 that is thermally activated at a temperature of 250 deg.C or higher is formed within an image display area on the electron source substrate 1 and activated by heating during the process of evacuating the inside of the envelope 5.
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公开(公告)号：JP2000133136A
公开(公告)日：2000-05-12
申请号：JP30520798
申请日：1998-10-27
Applicant: CANON KK
Inventor： GOFUKU IHACHIROU , HASEGAWA MITSUTOSHI , HAMAMOTO YASUHIRO , SHIGEOKA KAZUYA , ARAI YOSHITAKA
Abstract: PROBLEM TO BE SOLVED: To stabilize an electron emitting amount from an electron emitting element, suppress deterioration of an element characteristic, suppress reduction of brightness, and uneveness of brightness. SOLUTION: In a manufacturing method for an image forming device, an envelope 5 is formed in such a way that an electron source substrate 1 in which a plurality of electron emitting elements provided with a conductive film 108 including an electron emitting part are arranged, and a face-plate 4 having a fluorescent screen 7 are disposed opposing to each other; and a liquid including raw material for the conductive film 108 is supplied by ink-jet system, and furthermore baked so as to form the conductive film 108, and thereby non- evaporative getter type 9 is formed on the electron source substrate 1.
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公开(公告)号：JP2000133118A
公开(公告)日：2000-05-12
申请号：JP30979798
申请日：1998-10-30
Applicant: CANON KK
Inventor： ARAI YOSHITAKA , HASEGAWA MITSUTOSHI , GOFUKU IHACHIROU , SHIGEOKA KAZUYA , HAMAMOTO YASUHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a surface conductive type electron emitting element in which stable electron emitting characteristic can be obtained for a long period of time. SOLUTION: In an electron emitting element having a conductive film 4 including an electron emitter 5 between a pair of elemental electrodes 2, 3, an insulating film 6 having an opening 8 is formed in a region including the electron emitter 5 on a part of the element or the entire element. A non- evaporation type getter layer 7 is laid on the insulating film 6.
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公开(公告)号：JPH11111176A
公开(公告)日：1999-04-23
申请号：JP22302998
申请日：1998-08-06
Applicant: CANON KK
Inventor： HAMAMOTO YASUHIRO
Abstract: PROBLEM TO BE SOLVED: To reduce deterioration in an electron emitting element caused by gas escape from an image forming member at the time of image formation by applying a reverse voltage to a voltage applied at the time of image formation, to a pair of electrodes of the electron emitting element, and applying electrons emitted from the electron emitting element to an image forming member, thereby escaping gas sticking and remaining on the image forming member. SOLUTION: When a negative or positive voltage is set between first and second element electrodes 65, 66 and further a high voltage is applied to an image forming member 68, electrons emitted from an electron emitting part 67 collide on the image forming member 68, thereby facilitating gas escape from the image forming member 68. The beam spot position of electron beam colliding on the image forming member 68 is displaced to the high potential sides of the first and second element electrodes as shown by a distance Xc. The beam spot position at the time of aging (b) is made equal to the beam spot position at the time of image formation. Accordingly, gas escape in the beam spot region at the time of image formation can be made actively.
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100.发明专利
公开(公告)号：JPH0935621A
公开(公告)日：1997-02-07
申请号：JP20509695
申请日：1995-07-20
Applicant: CANON KK
Inventor： HAMAMOTO YASUHIRO , SUZUKI HIDETOSHI , TAKEDA TOSHIHIKO , NAKAMURA NAOHITO , NOMURA ICHIRO
Abstract: PROBLEM TO BE SOLVED: To provide an electron emission element capable of stably emitting electrons small in dispersion, by eliminating the dispersion of elements having islandlike structure in an emission part region. SOLUTION: Regularly arranged fine projections 4 are provided on the surface of a base board between electrodes 2 and 3 opposite with each other on a base board 1, and fine particles 6, composed of electron emission material, are arranged so as to adjoin the side surface of the particles 4 and the surface of the board 1. Islandlike structure, of a conductive fine particle having the regular pattern, is formed to be adopted as an electron emission part.
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