CA2073923A1 - Image-forming device - Google Patents
Image-forming deviceInfo
- Publication number
- CA2073923A1 CA2073923A1 CA2073923A CA2073923A CA2073923A1 CA 2073923 A1 CA2073923 A1 CA 2073923A1 CA 2073923 A CA2073923 A CA 2073923A CA 2073923 A CA2073923 A CA 2073923A CA 2073923 A1 CA2073923 A1 CA 2073923A1
- Authority
- CA
- Canada
- Prior art keywords
- image
- electron
- emitting element
- substrate
- forming
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/30—Cold cathodes, e.g. field-emissive cathode
- H01J1/316—Cold cathodes, e.g. field-emissive cathode having an electric field parallel to the surface, e.g. thin film cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/028—Mounting or supporting arrangements for flat panel cathode ray tubes, e.g. spacers particularly relating to electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/864—Spacers between faceplate and backplate of flat panel cathode ray tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/123—Flat display tubes
- H01J31/125—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection
- H01J31/127—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection using large area or array sources, i.e. essentially a source for each pixel group
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/0426—Layout of electrodes and connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/30—Cold cathodes
- H01J2201/316—Cold cathodes having an electric field parallel to the surface thereof, e.g. thin film cathodes
- H01J2201/3165—Surface conduction emission type cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2329/00—Electron emission display panels, e.g. field emission display panels
- H01J2329/86—Vessels
- H01J2329/8625—Spacing members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2329/00—Electron emission display panels, e.g. field emission display panels
- H01J2329/86—Vessels
- H01J2329/8625—Spacing members
- H01J2329/863—Spacing members characterised by the form or structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2329/00—Electron emission display panels, e.g. field emission display panels
- H01J2329/86—Vessels
- H01J2329/8625—Spacing members
- H01J2329/864—Spacing members characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2329/00—Electron emission display panels, e.g. field emission display panels
- H01J2329/86—Vessels
- H01J2329/8625—Spacing members
- H01J2329/8645—Spacing members with coatings on the lateral surfaces thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2329/00—Electron emission display panels, e.g. field emission display panels
- H01J2329/86—Vessels
- H01J2329/8625—Spacing members
- H01J2329/865—Connection of the spacing members to the substrates or electrodes
- H01J2329/8655—Conductive or resistive layers
Abstract
An image-forming device having, in an envelope, an electron-emitting element (5), an image-forming member (8) for forming an image by irradiation of an electron beam emitted from the electron-emitting element (5), and an electroconductive supporting member (10) for supporting the envelope (internally), comprises a means for controlling the potential (13) of the supporting member (10) to be not higher than the maximum potential applied to the electron-emitting element (5). The electron-emitting element (5) and the image-forming member (8) can be placed in juxtaposition on the same substrate (1), an electroconductive substrate (6) can be additionally provided in opposition to the face of the substrate, and the supporting member (10) can be connected electrically to one of said electrodes (2,3) and also to the electroconductive substrate (1). <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20116291 | 1991-07-17 | ||
JP3-201162 | 1991-07-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2073923A1 true CA2073923A1 (en) | 1993-01-18 |
CA2073923C CA2073923C (en) | 2000-07-11 |
Family
ID=16436403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002073923A Expired - Fee Related CA2073923C (en) | 1991-07-17 | 1992-07-15 | Image-forming device |
Country Status (7)
Country | Link |
---|---|
US (5) | US5828352A (en) |
EP (1) | EP0523702B1 (en) |
JP (1) | JP3110564B2 (en) |
AT (1) | ATE152857T1 (en) |
AU (1) | AU665006B2 (en) |
CA (1) | CA2073923C (en) |
DE (1) | DE69219523T2 (en) |
Families Citing this family (58)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5675212A (en) * | 1992-04-10 | 1997-10-07 | Candescent Technologies Corporation | Spacer structures for use in flat panel displays and methods for forming same |
US5614781A (en) * | 1992-04-10 | 1997-03-25 | Candescent Technologies Corporation | Structure and operation of high voltage supports |
USRE39633E1 (en) | 1987-07-15 | 2007-05-15 | Canon Kabushiki Kaisha | Display device with electron-emitting device with electron-emitting region insulated from electrodes |
USRE40566E1 (en) | 1987-07-15 | 2008-11-11 | Canon Kabushiki Kaisha | Flat panel display including electron emitting device |
USRE40062E1 (en) | 1987-07-15 | 2008-02-12 | Canon Kabushiki Kaisha | Display device with electron-emitting device with electron-emitting region insulated from electrodes |
AU665006B2 (en) * | 1991-07-17 | 1995-12-14 | Canon Kabushiki Kaisha | Image-forming device |
EP0790631B1 (en) | 1991-10-08 | 2001-02-21 | Canon Kabushiki Kaisha | Electron-emitting device, and electron beam-generating apparatus and image-forming apparatus employing the device |
AU6163494A (en) * | 1993-02-01 | 1994-08-29 | Silicon Video Corporation | Flat panel device with internal support structure and/or raised black matrix |
JP3205167B2 (en) * | 1993-04-05 | 2001-09-04 | キヤノン株式会社 | Method of manufacturing electron source and method of manufacturing image forming apparatus |
JPH075836A (en) * | 1993-04-05 | 1995-01-10 | Canon Inc | Device and method for forming image |
JP3044435B2 (en) * | 1993-04-05 | 2000-05-22 | キヤノン株式会社 | Electron source and image forming apparatus |
AU673910B2 (en) * | 1993-05-20 | 1996-11-28 | Canon Kabushiki Kaisha | Image-forming apparatus |
KR0156032B1 (en) * | 1993-05-28 | 1998-10-15 | 호소야 레이지 | Image display device and driver therefor |
CA2137873C (en) * | 1993-12-27 | 2000-01-25 | Hideaki Mitsutake | Electron source and electron beam apparatus |
CA2126509C (en) | 1993-12-27 | 2000-05-23 | Toshikazu Ohnishi | Electron-emitting device and method of manufacturing the same as well as electron source and image-forming apparatus |
US6802752B1 (en) | 1993-12-27 | 2004-10-12 | Canon Kabushiki Kaisha | Method of manufacturing electron emitting device |
CA2126535C (en) | 1993-12-28 | 2000-12-19 | Ichiro Nomura | Electron beam apparatus and image-forming apparatus |
US5528103A (en) * | 1994-01-31 | 1996-06-18 | Silicon Video Corporation | Field emitter with focusing ridges situated to sides of gate |
JP3387617B2 (en) * | 1994-03-29 | 2003-03-17 | キヤノン株式会社 | Electron source |
JP3251466B2 (en) * | 1994-06-13 | 2002-01-28 | キヤノン株式会社 | Electron beam generator having a plurality of cold cathode elements, driving method thereof, and image forming apparatus using the same |
JP3305166B2 (en) | 1994-06-27 | 2002-07-22 | キヤノン株式会社 | Electron beam equipment |
USRE40103E1 (en) * | 1994-06-27 | 2008-02-26 | Canon Kabushiki Kaisha | Electron beam apparatus and image forming apparatus |
JP3062990B2 (en) * | 1994-07-12 | 2000-07-12 | キヤノン株式会社 | Electron emitting device, method of manufacturing electron source and image forming apparatus using the same, and device for activating electron emitting device |
US5949184A (en) * | 1994-11-11 | 1999-09-07 | Sony Corporation | Light-emitting device and method of manufacturing the same |
JP3423511B2 (en) * | 1994-12-14 | 2003-07-07 | キヤノン株式会社 | Image forming apparatus and getter material activation method |
JP3299096B2 (en) | 1995-01-13 | 2002-07-08 | キヤノン株式会社 | Method of manufacturing electron source and image forming apparatus, and method of activating electron source |
JP3320294B2 (en) * | 1995-02-03 | 2002-09-03 | キヤノン株式会社 | Electron beam generator and image forming apparatus using the same |
JP2852357B2 (en) * | 1995-03-09 | 1999-02-03 | 双葉電子工業株式会社 | Display device |
DE69635210T2 (en) * | 1995-03-13 | 2006-07-13 | Canon K.K. | A manufacturing method of an electron-emitting device, an electron source and an image forming apparatus |
JP3083076B2 (en) * | 1995-04-21 | 2000-09-04 | キヤノン株式会社 | Image forming device |
US6473063B1 (en) * | 1995-05-30 | 2002-10-29 | Canon Kabushiki Kaisha | Electron source, image-forming apparatus comprising the same and method of driving such an image-forming apparatus |
US5859497A (en) * | 1995-12-18 | 1999-01-12 | Motorola | Stand-alone spacer for a flat panel display |
US6140761A (en) * | 1996-01-31 | 2000-10-31 | Canon Kabushiki Kaisha | Electron generation using a fluorescent element and image forming using such electron generation |
DE69737490T2 (en) | 1996-03-08 | 2007-08-09 | Canon K.K. | Display device and its manufacturing method |
US5726529A (en) * | 1996-05-28 | 1998-03-10 | Motorola | Spacer for a field emission display |
US5859502A (en) * | 1996-07-17 | 1999-01-12 | Candescent Technologies Corporation | Spacer locator design for three-dimensional focusing structures in a flat panel display |
US6049165A (en) * | 1996-07-17 | 2000-04-11 | Candescent Technologies Corporation | Structure and fabrication of flat panel display with specially arranged spacer |
AU744766B2 (en) | 1996-10-07 | 2002-03-07 | Canon Kabushiki Kaisha | Image-forming apparatus and method of driving the same |
AU742548B2 (en) | 1996-12-26 | 2002-01-03 | Canon Kabushiki Kaisha | A spacer and an image-forming apparatus, and a manufacturing method thereof |
JP3199682B2 (en) | 1997-03-21 | 2001-08-20 | キヤノン株式会社 | Electron emission device and image forming apparatus using the same |
JP3703287B2 (en) | 1997-03-31 | 2005-10-05 | キヤノン株式会社 | Image forming apparatus |
JPH1116521A (en) | 1997-04-28 | 1999-01-22 | Canon Inc | Electron device and image forming device using it |
US5831383A (en) * | 1997-05-12 | 1998-11-03 | Motorola Inc. | Spacer pads for field emission device |
US5990614A (en) * | 1998-02-27 | 1999-11-23 | Candescent Technologies Corporation | Flat-panel display having temperature-difference accommodating spacer system |
JP3302341B2 (en) * | 1998-07-02 | 2002-07-15 | キヤノン株式会社 | Electrostatic beam device, image forming apparatus, and method of manufacturing image forming apparatus |
JP3592236B2 (en) * | 1999-02-24 | 2004-11-24 | キヤノン株式会社 | Electron beam device and image forming device |
JP3733308B2 (en) * | 2000-09-29 | 2006-01-11 | キヤノン株式会社 | Manufacturing method of image display device |
JP3634850B2 (en) * | 2002-02-28 | 2005-03-30 | キヤノン株式会社 | Electron emitting device, electron source, and method of manufacturing image forming apparatus |
JP2004171968A (en) * | 2002-11-21 | 2004-06-17 | Hitachi Ltd | Flat type display device |
GB2404279A (en) * | 2002-11-21 | 2005-01-26 | Hitachi Ltd | Display device comprising box-type spacers located on scanning electrodes |
JP2004246317A (en) * | 2002-12-20 | 2004-09-02 | Hitachi Ltd | Cold cathode type flat panel display |
JP2004213983A (en) * | 2002-12-27 | 2004-07-29 | Canon Inc | Image forming apparatus |
JP2006173093A (en) * | 2004-11-18 | 2006-06-29 | Canon Inc | Image-forming device |
JP2007095649A (en) * | 2005-08-31 | 2007-04-12 | Sony Corp | Flat-panel display |
KR100814813B1 (en) * | 2006-08-14 | 2008-03-19 | 삼성에스디아이 주식회사 | Light emission device and liquid crsytal display with the light emission device as backlight unit |
CN101471213B (en) * | 2007-12-29 | 2011-11-09 | 清华大学 | Thermal emission electronic component and method for producing the same |
US10315391B1 (en) | 2018-05-02 | 2019-06-11 | Richard G. Halverson | Producing bulk fabrication material from vehicle tires |
KR20200040537A (en) * | 2018-10-10 | 2020-04-20 | 엘지디스플레이 주식회사 | Source for vertical type vacuum deposition, source assembly and vertical type vacuum deposition apparatus using the same |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3755704A (en) * | 1970-02-06 | 1973-08-28 | Stanford Research Inst | Field emission cathode structures and devices utilizing such structures |
DE3036671A1 (en) * | 1980-09-29 | 1982-05-13 | Siemens AG, 1000 Berlin und 8000 München | FLAT SCREEN, METHOD FOR ITS PRODUCTION AND USE |
US5675212A (en) * | 1992-04-10 | 1997-10-07 | Candescent Technologies Corporation | Spacer structures for use in flat panel displays and methods for forming same |
JPS61112403A (en) * | 1984-11-06 | 1986-05-30 | Toyota Motor Corp | Antenna system for automobile |
WO1986003331A1 (en) * | 1984-11-20 | 1986-06-05 | Matsushita Electric Industrial Co., Ltd. | Electron gun of picture display device |
US5015912A (en) * | 1986-07-30 | 1991-05-14 | Sri International | Matrix-addressed flat panel display |
US4904895A (en) * | 1987-05-06 | 1990-02-27 | Canon Kabushiki Kaisha | Electron emission device |
US5066883A (en) * | 1987-07-15 | 1991-11-19 | Canon Kabushiki Kaisha | Electron-emitting device with electron-emitting region insulated from electrodes |
JPS6441150A (en) * | 1987-08-06 | 1989-02-13 | Matsushita Electric Ind Co Ltd | Flat plate type cathode-ray tube |
US4988913A (en) * | 1988-04-08 | 1991-01-29 | Matsushita Electric Industrial Co., Ltd. | Flat configuration cathode ray tube |
US5063327A (en) * | 1988-07-06 | 1991-11-05 | Coloray Display Corporation | Field emission cathode based flat panel display having polyimide spacers |
US4923421A (en) * | 1988-07-06 | 1990-05-08 | Innovative Display Development Partners | Method for providing polyimide spacers in a field emission panel display |
JP2981751B2 (en) | 1989-03-23 | 1999-11-22 | キヤノン株式会社 | Electron beam generator, image forming apparatus using the same, and method of manufacturing electron beam generator |
FR2647580B1 (en) * | 1989-05-24 | 1991-09-13 | Clerc Jean | ELECTROLUMINESCENT DISPLAY DEVICE USING GUIDED ELECTRONS AND ITS DRIVING METHOD |
DE69009307T3 (en) * | 1989-06-19 | 2004-08-26 | Matsushita Electric Industrial Co., Ltd., Kadoma | Flat screen display device. |
US5386175A (en) * | 1990-05-24 | 1995-01-31 | U.S. Philips Corporation | Thin-type picture display device |
CA2058504C (en) | 1990-12-28 | 1998-10-06 | Naoto Nakamura | Image forming apparatus |
US5229691A (en) * | 1991-02-25 | 1993-07-20 | Panocorp Display Systems | Electronic fluorescent display |
JPH04324231A (en) * | 1991-04-24 | 1992-11-13 | Mitsubishi Electric Corp | Flat surface type display device |
AU665006B2 (en) * | 1991-07-17 | 1995-12-14 | Canon Kabushiki Kaisha | Image-forming device |
US5424605A (en) * | 1992-04-10 | 1995-06-13 | Silicon Video Corporation | Self supporting flat video display |
US5347292A (en) * | 1992-10-28 | 1994-09-13 | Panocorp Display Systems | Super high resolution cold cathode fluorescent display |
JP3305166B2 (en) | 1994-06-27 | 2002-07-22 | キヤノン株式会社 | Electron beam equipment |
US5606225A (en) * | 1995-08-30 | 1997-02-25 | Texas Instruments Incorporated | Tetrode arrangement for color field emission flat panel display with barrier electrodes on the anode plate |
US5726529A (en) * | 1996-05-28 | 1998-03-10 | Motorola | Spacer for a field emission display |
-
1992
- 1992-07-15 AU AU20312/92A patent/AU665006B2/en not_active Ceased
- 1992-07-15 CA CA002073923A patent/CA2073923C/en not_active Expired - Fee Related
- 1992-07-16 EP EP92112176A patent/EP0523702B1/en not_active Expired - Lifetime
- 1992-07-16 AT AT92112176T patent/ATE152857T1/en not_active IP Right Cessation
- 1992-07-16 DE DE69219523T patent/DE69219523T2/en not_active Expired - Lifetime
- 1992-07-17 JP JP04212435A patent/JP3110564B2/en not_active Expired - Fee Related
-
1994
- 1994-10-11 US US08/321,465 patent/US5828352A/en not_active Expired - Lifetime
-
1998
- 1998-09-01 US US09/145,208 patent/US6366265B1/en not_active Expired - Fee Related
-
2001
- 2001-11-14 US US09/987,309 patent/US6705909B2/en not_active Expired - Fee Related
-
2004
- 2004-01-14 US US10/756,452 patent/US7230589B2/en not_active Expired - Fee Related
-
2007
- 2007-04-26 US US11/740,496 patent/US7605530B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6705909B2 (en) | 2004-03-16 |
EP0523702B1 (en) | 1997-05-07 |
US20070285357A1 (en) | 2007-12-13 |
AU2031292A (en) | 1993-01-21 |
CA2073923C (en) | 2000-07-11 |
DE69219523T2 (en) | 1997-12-04 |
JP3110564B2 (en) | 2000-11-20 |
AU665006B2 (en) | 1995-12-14 |
US20020030640A1 (en) | 2002-03-14 |
EP0523702A1 (en) | 1993-01-20 |
US6366265B1 (en) | 2002-04-02 |
US20040145545A1 (en) | 2004-07-29 |
US7605530B2 (en) | 2009-10-20 |
ATE152857T1 (en) | 1997-05-15 |
JPH05266807A (en) | 1993-10-15 |
US5828352A (en) | 1998-10-27 |
DE69219523D1 (en) | 1997-06-12 |
US7230589B2 (en) | 2007-06-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU2031292A (en) | Image-forming device | |
AU678121B2 (en) | Electron-emitting device, and electron beam-generating apparatus and image-forming apparatus employing the device | |
CA2152740A1 (en) | Electron beam apparatus and image forming apparatus | |
EP0394698A3 (en) | Electron beam lithography machine and image display apparatus | |
DK0528391T3 (en) | Field radiation electron source using a diamond coating and method of making it | |
CA2112432A1 (en) | Image-Forming Apparatus, and Designation of Electron Beam Diameter at Image-Forming Member in Image-Forming Apparatus | |
EP1892743A3 (en) | Electron source and image-forming apparatus | |
EP0388984A3 (en) | Electron-beam generator and image display apparatus making use of it | |
AU8153394A (en) | Electron source and electron beam apparatus | |
AU6592794A (en) | Electron beam apparatus and image-forming apparatus | |
CA2158886A1 (en) | Electron-Emitting Device and Method of Manufacturing the Same as Well as Electron Source and Image Forming Apparatus Comprising Such Electron-Emitting Devices | |
AU698650B2 (en) | Electron source and production thereof, and image-forming apparatus and production thereof | |
CA2075698A1 (en) | Flat display apparatus | |
AU5927594A (en) | Electron source and image-forming apparatus | |
JPS6431335A (en) | Electron beam generator | |
CA2295411A1 (en) | Electron beam apparatus and image-forming apparatus | |
CA2282898A1 (en) | Electron-emitting device and method of manufacturing the same as well as electron source and image forming apparatus comprising such electron-emitting devices |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |