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111.发明专利
公开(公告)号：JP2000081857A
公开(公告)日：2000-03-21
申请号：JP25147898
申请日：1998-09-04
Applicant: CANON KK
Inventor： HAMAMOTO YASUHIRO
Abstract: PROBLEM TO BE SOLVED: To operate a device stably for a long time by suppressing variation of a characteristic of plural electron emitting elements owned by an electron source. SOLUTION: This device is a driving device of a display panel 1000 provided with an electron source having plural electron emitting elements. In this case, a modulated signal outputted from a modulation signal generator 87 is passed through band filters Fy1-Fyn based on a picture signal of one line stored in a line memory 85, and a resonant frequency component in an electron source is eliminated. Thus, a driving signal from which a resonant frequency component is eliminated is inputted to column wiring terminals Dy1-Dyn of the display panel 1000, the display panel 1000 is driven synchronizing with a scan signal inputted to row wiring terminals Dx1-Dxm of the same display panel 1000, and a picture is displayed. Thereby, the display panel 1000 can be displayed and driven preventing resonance in an electron source which causes deterioration of an electron emitting characteristic of an electron emitting element.
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112.发明专利
公开(公告)号：JPH09298029A
公开(公告)日：1997-11-18
申请号：JP8307196
申请日：1996-03-13
Applicant: CANON KK
Inventor： KAWADE ISAAKI , YAMAMOTO KEISUKE , HAMAMOTO YASUHIRO , YAMANOBE MASATO , MITOME MASANORI
IPC: G09G3/22 , H01J1/316 , H01J9/02 , H01J29/00 , H01J29/04 , H01J29/46 , H01J31/10 , H01J31/12 , H01J1/30
Abstract: PROBLEM TO BE SOLVED: To uniformize and stabilize the electron emitting characteristic, and improve the electron emitting efficiency by uniformly forming an electron emitting part, particularly, in surface conductive type, so that the width of a crack is 50nm or less, and the length corresponding to voltage application is 5nm or less. SOLUTION: This element has a base 1, opposed element electrodes 4, 5, and a conductive film 3 formed of fine particle film, and an electron emitting part 2 formed of a crack by electric forming is formed on the film 3. The crack width is uniformly set to 50nm or less and, preferably, the voltage application corresponding length is uniformly set to 5nm or less. Namely, the electric forming is performed in the atmosphere containing a gas for promoting the coagulation of the film 3 by applying a pulse voltage preferably in a prescribed wave height value. As the gas, reductive H2 , CO or the like is used when the film 3 is formed of a metal oxide, to coagulate the film 3 in reduction. Thus, the power necessary for treatment is reduced, and since the emitting part 2 is formed when the resistance value of the film 3 is reduced to the same value, the dispersion between elements is suppressed.
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公开(公告)号：JPH0917325A
公开(公告)日：1997-01-17
申请号：JP15947195
申请日：1995-06-26
Applicant: CANON KK
Inventor： YAMANOBE MASATO , HAMAMOTO YASUHIRO , SHIBATA MASAAKI , HIRABAYASHI KEIJI , TANIGUCHI YASUSHI
Abstract: PURPOSE: To provide a high performance electron emitting element having a sufficient electron emitting quantity by providing a material mainly composed of diamond in this electron emitting part in the electron emitting element by arranging a conductive film having the electron emitting part between electrodes. CONSTITUTION: Element electrodes 2 and 3 (such as Pt) on which a width W is about 300μm and a mutual interval L is about 3μm is formed on a base board 1 by layering SiO2 on blue plate glass or the like. A conductive thin film 4 composed of Ir particulates is formed on these element electrodes 2 and 3, and foaming processing is performed on this conductive thin film 4, and a crack part being electron emission 5 is formed. Next, a diamond layer 6 which is composed of particulates mainly composed of diamond and has a thickness of about 200Å is formed on the conductive thin film 4, and a material mainly composed of diamond is provided in an electron emitting part 5. Therefore, a thermally stable and chemically stable electron emitting element having high heat conductivity can be obtained.
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公开(公告)号：JPH08329828A
公开(公告)日：1996-12-13
申请号：JP15407195
申请日：1995-05-30
Applicant: CANON KK
Inventor： SATO YASUE , HAMAMOTO YASUHIRO , NOMURA ICHIRO , TAKEDA TOSHIHIKO , SAKANO YOSHIKAZU
Abstract: PURPOSE: To enhance the electron emitting characteristics along with a long lifetime and stable operation by forming an electroconductive film on an underlay thin film or a base board containing specific substance(s). CONSTITUTION: A base board 1 contains a substance having a work function lower than the substance(s) constituting an electron emission part 2, and after washing the base board 1 with detergent, pure water, and an organic solvent, an underlay film 6 is formed by the vacuum evaporation process or sputtering process. An organic metal solution having as chief element the metal constituting a conductive film 3 is applied to the base board 1 and dried and heated as a baking process, followed by a lift-off and etching process, and thus conductive film 3 with patterning is produced. An element electrode material is deposited on this film 3, followed by a photolithographic process so that element electrodes 4, 5 are formed. Current is fed from a power supply to between the element electrodes 4, 5, and the film 3 is destroyed, deformed, or denatured locally, and thus electron emission part 2 is accomplished.
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115.发明专利
公开(公告)号：JPH08162010A
公开(公告)日：1996-06-21
申请号：JP31941794
申请日：1994-11-30
Applicant: CANON KK
Inventor： YAMAMOTO KEISUKE , TSUKAMOTO TAKEO , HAMAMOTO YASUHIRO , YAMANOBE MASATO
Abstract: PURPOSE: To easily manufacture a surface conductive electron emission element having the uniform electric characteristic by communicating element electrodes so formed as to be faced to each other on a substrate by means of a conductive thin film, and forming an electron emitting part through a process of adjusting the value of resistance of this conductive thin film. CONSTITUTION: Element electrodes 4, 5 (made of Ni, Cr, etc.) are formed on the substrate 1 (quartz glass) so as to be faced to each other, and a conductive thin film 3 (made of Pd, Ru, etc.) is so formed as to communicate the element electrodes 4, 5 with each other. The substrate 1 on which the element electrodes 4, 5 and the conductive thin film 3 are formed is installed in a vacuum device 42, and a pulse applying device 41 and an ammeter 40 are connected to the element electrodes 4, 5. After the vacuum device 42 is exhausted by an exhaust pipe 43, various kinds of gas are introduced from an introducing pipe 44, the pulse shape is made generated from the pulse applying device 41, and the initial resistance is measured by the ammeter 40. After the resistance correcting pulse is added to adjust the value of resistance into the desired one, the electrification processing called forming is applied, and an electron emitting part 2 whose structure is changed is formed on a part of the conductive thin film 3.
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Patent Agency Ranking116.发明专利
公开(公告)号：JPH08102251A
公开(公告)日：1996-04-16
申请号：JP25907594
申请日：1994-09-29
Applicant: CANON KK
Inventor： YAMANOBE MASATO , TSUKAMOTO TAKEO , YAMAMOTO KEISUKE , HAMAMOTO YASUHIRO
Abstract: PURPOSE: To provide a manufacturing method of a surface conduction-type electron emission element as an electron beam source with which the size of an image forming apparatus can be made wide and images with high quality can be provided. CONSTITUTION: Regarding a manufacturing method of a surface conduction-type electron emission element in which an electron emission part 2 is formed in a conductive thin film 3 communicating element electrodes 4, 5 on a substrate 1; a height regulating member 6 is installed under only one element electrode 5. The step attributed to the element electrode 5 and the height regulating member 6 is utilized as a structural latent image forming means (a), and a structural latent image 8 with different film thickness and/or film quality is formed near the step by forming a conductive thin film (b), and the structural latent image 8 is developed by heating to form an electron emitting part 2. Consequently, an electron emission element with high reproducibility of the shape and the position of the electron emission part and uniform electron emitting properties can be manufactured.
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公开(公告)号：JPH0896699A
公开(公告)日：1996-04-12
申请号：JP25273094
申请日：1994-09-22
Applicant: CANON KK
Inventor： YAMANOBE MASATO , YAMAMOTO KEISUKE , HAMAMOTO YASUHIRO , TSUKAMOTO TAKEO
Abstract: PURPOSE: To provide a surface conduction type electron emitting element which can realize an image formation device possessing a larger area and higher quality. CONSTITUTION: An electron emitting portion 2 is set on a conductive thin film 3 connecting element electrodes 4, 5 made on a substrate 1 so as to form a surface conduction type electron emitting element. In the surface conduction type electron emitting element, one side electrode 5 is formed to be thick so that an electron emitting portion 2 is set only in the vicinity of a step portion of an element electrode 5 part. Thereby, even if length L between the element electrodes 4, 5 is set to be long, the repeatability of the shape and the location of the electron emitting portion 2 is high so that it is possible to obtain the element possessing a uniform electron emitting characteristic.
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公开(公告)号：JPH06283104A
公开(公告)日：1994-10-07
申请号：JP2761294
申请日：1994-02-01
Applicant: CANON KK
Inventor： SUZUKI HIDETOSHI , TAKEDA TOSHIHIKO , HAMAMOTO YASUHIRO , NAKAMURA NAOHITO , NOMURA ICHIRO
Abstract: PURPOSE:To precisely select the quality of an element having voltage-dependent nonlinearity by comparing a reference current value with the current value flowing in the electron emitting element when the fixed voltage is applied to it. CONSTITUTION:The fixed voltage is applied to an electron emitting element 7 by a fixed voltage applying means 1, and the current flowing in the element 7 is detected by a current detecting means 2. A temperature detecting means 3 and a humidity detecting means 4 detect the temperature and humidity of the element 7 itself or near the element 7. Measured results of the element 7 having good characteristics on various conditions are stored in advance in a data table 5 on the current value detected by the means 2 when the fixed voltage is applied to the element 7 while the temperature and humidity are used as parameters. A comparing/judging means 6 reads out a numeral range for the quality judgment reference from the table 5 based on the detected results of the means 3, 4, compares the numeral range with the output of the means 2, and judges the quality of the element 7.
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公开(公告)号：JPH06203742A
公开(公告)日：1994-07-22
申请号：JP36135392
申请日：1992-12-29
Applicant: CANON KK
Inventor： TAKEDA TOSHIHIKO , YONEDA HIROSHI , SASAKI TOYONARI , NOMURA ICHIRO , SUZUKI HIDETOSHI , HAMAMOTO YASUHIRO
Abstract: PURPOSE:To provide a surface conduction type electron emitting element used as an electron emitting source for an image forming device. CONSTITUTION:Fine grains 16 of forming an electron emitting part are dispersedly arranged between electrodes 12, 13 on a substrate 11. In this electron emitting element, a coating member 17 containing an element of atomic weight larger than an element, contained in the fine grain 16, is arranged in a surface of the fine grain 16, and further this coating member has a thickness of a mean free stroke or more of an electron passing through this member. In this way, an electron emitting amount and electron emitting efficiency are increased, and further uniformity and repeatability of each element are improved.
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公开(公告)号：JP2003249183A
公开(公告)日：2003-09-05
申请号：JP2002046238
申请日：2002-02-22
Applicant: CANON KK
Inventor： HAMAMOTO YASUHIRO
Abstract: PROBLEM TO BE SOLVED: To prevent a discharge at a creepage surface of a member surface, and to reduce damage due to the discharge even when the discharge occurs. SOLUTION: On a face plate 1017, an image display region 101 as a phosphor region is formed, and a conductive member 102 is formed to surround the image display region 101, an anode electrode outer border 104, and a high voltage input terminal contact section 100. The conductive member 102 has a sheet resistance of 10 3 Ω/square or more, and a thickness to set to 5 μm or more. COPYRIGHT: (C)2003,JPO
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