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公开(公告)号：JP2001357775A
公开(公告)日：2001-12-26
申请号：JP2001126643
申请日：2001-04-24
Applicant: CANON KK
Inventor： SUZUKI HIDETOSHI , YAMAGUCHI EIJI , IWASAKI TATSUYA , OSADA YOSHIYUKI , TAKEDA TOSHIHIKO , ISONO SEIJI , NOMURA ICHIRO , TOSHIMA HIROAKI , SUZUKI TOMOTAKE , ONO TAKEO , HAMAMOTO YASUHIRO , TODOKORO YASUYUKI , KAWADE ISAAKI , SHINJO KATSUHIKO , OKUDA MASAHIRO
Abstract: PROBLEM TO BE SOLVED: To eliminate creep voltage and current to a thin film for electron emission part formation during forming, and reduce the distribution of forming voltage or electric power due to a potential drop in wiring. SOLUTION: In a manufacturing method of an electron source having plural surface conduction electron emission elements arranged on a substrate, conductivity forming is carried out for the plural surface conduction electron emission elements by dividing them in plural groups electrically opened, and electrical connections are made among respective groups after the conductivity forming process which is carried out for these respective groups.
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公开(公告)号：JP2000251776A
公开(公告)日：2000-09-14
申请号：JP4803799
申请日：1999-02-25
Applicant: CANON KK
Inventor： HAMAMOTO YASUHIRO , YAMAMOTO KEISUKE
Abstract: PROBLEM TO BE SOLVED: To reduce color drift or distortion at an end of an image display region by providing a support frame that supports between a front surface plate and a rear surface plate and has, on its surface, a second conductive film electrically connected with a first conductive film included in the front surface plate. SOLUTION: A first conductive film 10 is formed from the periphery of an image forming member 6 on a front surface plate 7 to a joint portion with a support frame 9, the first conductive film 10 is electrically connected with the image forming member 6. A second conductive film 11 is formed on the support frame 9, from a joint portion with the front surface plate 7 to a joint portion with a rear surface plate 4. The first conductive film 10 is electrically connected with the second conductive film 11 at their joint portion. By considering structure parameters around the support frame 9 and, if necessary, setting sheet resistances of the first conductive film 10 and the second conductive film 11, voltages on the surface of the support frame 9 and around the image display member 6 on the front surface plate 7 are prevented from un- stabilizing during image display. Thus, the orbit of the electron beams emitted from an electron emitting element corresponding to the end of an image display region is not disturbed.
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公开(公告)号：JP2000250477A
公开(公告)日：2000-09-14
申请号：JP5149899
申请日：1999-02-26
Applicant: CANON KK
Inventor： TAMURA MIKI , YAMAMOTO KEISUKE , HAMAMOTO YASUHIRO
Abstract: PROBLEM TO BE SOLVED: To actualize low power consumption and high quality by driving an electron emission part so that the electron emitted by the electron emission part reaches an anode electrode through an elastic scattering process wherein the mean elastic scatter frequency on the high-potential side surface of an electron emitting element is within a specific range. SOLUTION: A thin film containing carbon on the high-potential side surface 12 of at least the electron emitting element is arranged in grating stripes on a conductive thin film and the element is driven with an element voltage Vf and an anode voltage Va so that the electron emitted 'by the electron emission part reaches the anode electrode 13 through the elastic scatter process wherein the mean elastic scatter frequency (n) on the high-potential side surface 12 of the electron emitting element is 1 to 3. The electron emitting element is characterized by that the rate of the electron reaching the anode can be made larger and larger as the scatter frequency on the high-potential side surface 12 becomes lower and lower, but the anode voltage needs to be made high and the problem of discharging, etc., is possibly generated. For the purpose, driving conditions of a mean elastic scatter frequency of >=1 are preferable.
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公开(公告)号：JP2000133138A
公开(公告)日：2000-05-12
申请号：JP30832998
申请日：1998-10-29
Applicant: CANON KK
Inventor： HAMAMOTO YASUHIRO , TAKEDA TOSHIHIKO , HASEGAWA MITSUTOSHI , GOFUKU IHACHIROU , SHIGEOKA KAZUYA , ARAI YOSHITAKA
Abstract: PROBLEM TO BE SOLVED: To provide an image forming device capable of inhibiting deterioration of element characteristics as the amount of electrons emitted from an electron emission element becomes stable, and restraining brightness from decreasing and becoming uneven. SOLUTION: To manufacture an image forming device having a structure in which a nonevaporative getter 12 is formed on an electron source substrate 1, an adherent layer and a mask that have respective apertures therein are fixedly arranged on the electron source substrate 1 and a film of the nonevaporative getter 12 is formed by pressure-reducing plasma spraying method on the electron source substrate 1 exposed from the mask aperture. The mask and the adherent layer are removed to form the nonevaporative getter 12 within an image display area.
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公开(公告)号：JP2000133137A
公开(公告)日：2000-05-12
申请号：JP30520998
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 are arranged, and a face-plate 4 having a fluorescent screen 7 are disposed opposing to each other, and non-evaporative type getter 9 is formed on the electron source substrate 1, and after sealing the envelope 5, the non-eveporative type getter 9 is activated by heating.
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Patent Agency Ranking
公开(公告)号：JP2000123735A
公开(公告)日：2000-04-28
申请号：JP28932298
申请日：1998-10-12
Applicant: CANON KK
Inventor： HAMAMOTO YASUHIRO
IPC: H01J9/44
Abstract: PROBLEM TO BE SOLVED: To avoid element deterioration and vacuum discharge caused by the gas molecule desorption from a panel constituting member by specifying the high-potential side electrode potential of an electron emitting element and the anode potential applied to an image forming member during the aging process with these potentials, the inter- electrode pitch and the distance between an electron source and the image forming member at the time of driving after completion. SOLUTION: The high-potential side electrode potentials referenced to the low- potential side electrode potentials of multiple electron emitting elements provided on an electron source together with multiple element electrode pairs on a substrate in a vacuum container and positive anode potentials referenced to the intermediate potential during the aging process and at the time of normal driving after the completion of a device are set to Vf, Va; Vsp, Vap [V]. When the pitch connecting both electrodes and the distance between the electron source and an image forming member are set to (p), (h) [m] and the order (n) is set to 0 or a positive integer, the device is driven at the potentials Vf, Va satisfying the equation during the aging process. The image forming member is concentrically degassed by electron beam radiation during the manufacturing process, and the required time to the reduction target quantity of the discharged gas is shortened.
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公开(公告)号：JP2000082387A
公开(公告)日：2000-03-21
申请号：JP25147698
申请日：1998-09-04
Applicant: CANON KK
Inventor： HAMAMOTO YASUHIRO
Abstract: PROBLEM TO BE SOLVED: To provide an electron source having a electron emission characteristic stable for a long period, together with its manufacturing method and driving method, and provide an image forming device using such an electron source along with its driving method. SOLUTION: A driving method for an electron source of such a configuration that a plurality of electron emitting elements including electron emission part are installed between element electrodes, consists of driving each electron emitting element normally with pulses having a waveheight V1, and at its driving, refresh pulses having a waveheight V2 at certain intervals, wherein V2 is 1-1.5 times as large as V1. The refresh pulses may be superposed on the normal driving pulses at regular intervals as shown in (b).
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公开(公告)号：JPH11339639A
公开(公告)日：1999-12-10
申请号：JP12677499
申请日：1999-05-07
Applicant: CANON KK
Inventor： KAWADE ISAAKI , YAMAMOTO KEISUKE , HAMAMOTO YASUHIRO , YAMANOBE MASATO , MITOME MASANORI
IPC: H01J9/02
Abstract: PROBLEM TO BE SOLVED: To provide an electron source having a large number of electron emitting elements having a uniform and stable electron emitting characteristic. SOLUTION: This electron source has plural lines of electron emitting element lines for connecting in common plural electron emitting elements 74 having a conductive film having the electron emitting part on a base body 71. In a manufacturing method of this electron source, in forming the electron emitting part, pulse voltage of one to several pulses is impressed in order with respective electron emitting element lines so that this is repeated plural times.
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公开(公告)号：JPH0992183A
公开(公告)日：1997-04-04
申请号：JP26619995
申请日：1995-09-21
Applicant: CANON KK
Inventor： HAMAMOTO YASUHIRO , YAMAMOTO KEISUKE , TSUKAMOTO TAKEO , YAMANOBE MASATO
Abstract: PROBLEM TO BE SOLVED: To obtain a surface conductive type electron emission element preferable as an electron beam source in which a high-dignity image with its high brightness, high-precision, and without any brightness non-uniformity is obtained when the area of an image formation device becomes large. SOLUTION: In a surface conductive type electron emission element provided with a conductive film 3 having an electron emission part 2 between element electrodes 4 and 5 formed on a board 1, the electron emission part 2 is arranged only in the neighborhood of one element electrode 5, and a control electrode 6 is arranged in the neighborhood between element electrodes. By driving the element electrode 4 as a high potential and the element electrode 5 and the control electrode 6 as a low potential, absorption of the emission electron to a high-potential side element electrode can be prevented, the electron emission efficiency can be improved, and the convergence of electron beams can be improved.
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公开(公告)号：JPH0935619A
公开(公告)日：1997-02-07
申请号：JP20272395
申请日：1995-07-18
Applicant: CANON KK
Inventor： SUZUKI HIDETOSHI , TAKEDA TOSHIHIKO , HAMAMOTO YASUHIRO , NAKAMURA NAOHITO , NOMURA ICHIRO
Abstract: PROBLEM TO BE SOLVED: To provide an emission element having high electron emission efficiency and small characteristic deviation for every element, by making a fine particle having a specific condition, in the emission element having a given electrode and a thin coat composed of the fine particle respectively. SOLUTION: In an emission element having electrodes 2 and 3 oppositely provided on a base board 1, and a thin coat composed of a fine particle 4 (e.g.: Ag fine particle), spatially uncontinuous and electrically continuous, between the electrodes 2 and 3; the fine particle 4 is made to have shape anisotropy, preferably a spheroid or a nearly spheroid shape, and is arranged anisotropically and spatially. It is preferably that the long axis direction, of the spheroid or the fine particle having a nearly spheroid shape, can be oriented in the direction of an electric line of force generated when voltage is applied between the electrodes 2 and 3.
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