EP0388984A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Electron-beam generator and image display apparatus making use of it
Assignee: Canon Inc
•
Filing: 1990-03-23
•
Granted: —
•
Expires: 2010-03-23
Abstract
Abstract An electron-beam generator comprises an electron-emitting device and a modulating electrode capable of modulating an electron beam emitted from the electron-emitting device, in accordance with an information signal. The modulating electrode and the electron-emitting device are so laminated as to interpose an insulating substrate therebetween.
Inventors
- 👤 Ichiro Nomura
- 👤 Toshihiko Takeda
- 👤 Yoshikazu Banno
- 👤 Tetsuya Kaneko
- 👤 Haruhito Ono
- 👤 Hidetoshi Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 21:53
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/123; H01J31/125; H01J31/127; B; B82; B82Y; B82Y10/00; H01J1/00; H01J1/02; H01J1/30; H01J1/316; H01J2201/00; H01J2201/30; H01J2201/316; H01J2201/3165; H01J2329/00
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
46 words
An electron-beam generator comprising an electron-emitting device and a modulating electrode capable of modulating an elecron beam emitted from the electron-emitting device, in accordance with an information signal; wherein said modulating electrode and said electron-emitting device are so laminated as to interpose an insulating substrate therebetween.
Claim 2
Dependent Claim
46 words
An electron-beam generator comprising an electron-emitting device and a modulating electrode capable of modulating an elecron beam emitted from the electron-emitting device, in accordance with an information signal; wherein said modulating electrode and said electron-emitting device are so laminated as to interpose an insulating substrate therebetween.
Claim 3
Dependent Claim
30 words
An electron-beam generator according to Claim 1, wherein a plurality of said electron-emitting devices are arranged, and the distance between said modulating electrode and individual electron-emitting devices are all equal.
Claim 4
Dependent Claim
15 words
An electron-beam generator according to Claim 1, wherein said insulating substrate has a uniform thickness.
Claim 5
Dependent Claim
20 words
An electron-beam generator according to Claim 1, wherein said insulating substrate has a thickness of from 0.1 to 200 µm.
Claim 6
Dependent Claim
35 words
An electron-beam generator according to Claim 1, wherein the distance between an electron beam emission surface of said electron-emitting device and said modulating electrode is in the range of from 0.1 µm to 200 µm.
Claim 7
Dependent Claim
28 words
An electron-beam generator according to Claim 1, wherein said electron-emitting device has a thickness of from 0.01 µm to 200 µm in the direction of electron beam emission.
Claim 8
Dependent Claim
16 words
An electron-beam generator according to Claim 1, wherein said electron-emitting device is a surface-conductive electron-emitting device.
Claim 9
Dependent Claim
37 words
An electron-beam generator according to Claim 1, wherein said electron-emitting device has an electron-emitting area between electrodes provided on said insulating substrate, and electrons are emitted from said electron-emitting area by applying a voltage between said electrodes.
Claim 10
Dependent Claim
39 words
An electron-beam generator according to Claim 1, wherein a linear electron-emitting device; which is formed by arranging a plurality of said electron-emitting devices, and a plurality of said modulating electrodes are so disposed as to form an XY matrix.
Claim 11
Dependent Claim
23 words
An electron-beam generator according to Claim 1, wherein said electron-emitting device and said modulating electrode each independently have means for applying a voltage.
Claim 12
Dependent Claim
46 words
An electron-beam generator comprising an electron-emitting device and a modulating electrode capable of modulating an electron beam emitted from said electron-emitting device, in accordance with an information signal; wherein said electron-emitting device and said modulating electrode are disposed on the same plane of an insulating substrate.
Claim 13
Dependent Claim
46 words
An electron-beam generator comprising an electron-emitting device and a modulating electrode capable of modulating an electron beam emitted from said electron-emitting device, in accordance with an information signal; wherein said electron-emitting device and said modulating electrode are disposed on the same plane of an insulating substrate.
Claim 14
Dependent Claim
15 words
An electron-beam generator according to Claim 11, wherein said insulating substrate has a uniform thickness.
Claim 15
Dependent Claim
30 words
An electron-beam generator according to Claim 11, wherein a plurality of said electron-emitting devices are arranged, and the distances between said modulating electrode and individual electron-emitting devices are all equal.
Claim 16
Dependent Claim
24 words
An electron-beam generator according to Claim 11, wherein the distance between said modulating electrode and said electron-emitting device is not more than 30 µm.
Claim 17
Dependent Claim
28 words
An electron-beam generator according to Claim 11, wherein said electron-emitting device has a thickness of from 0.01 µm to 200 µm in the direction of electron beam emission.
Claim 18
Dependent Claim
16 words
An electron-beam generator according to Claim 11, wherein said electron-emitting device is a surface-conductive electron-emitting device.
Claim 19
Dependent Claim
37 words
An electron-beam generator according to Claim 11, wherein said electron-emitting device has an electron-emitting area between electrodes provided on said insulating substrate, and electrons are emitted from said electron-emitting area by applying a voltage between said electrodes.
Claim 20
Dependent Claim
39 words
An electron-beam generator according to Claim 11, wherein a linear electron-emitting device, which is formed by arranging a plurality of said electron-emitting devices, and a plurality of said modulating electrode are so disposed as to form an XY matrix.
Claim 21
Dependent Claim
24 words
An electron-beam generator according to Claim 11, wherein said electron-emitting device and said modulating electrode each independently have a means for applying a voltage.
Claim 22
Dependent Claim
79 words
An image display apparatus comprising an electron-emitting device, a modulating electrode capable of modulating an electron beam emitted from said electron-emitting device, in accordance with an information signal, and an image forming member capable of forming an image by irradiation with said electron beam; wherein said modulating electrode, said electron-emitting device and said image forming member are disposed in this order, and said modulating electrode and said electron-emitting device is so laminated as to interpose an insulating substrate therebetween.
Claim 23
Dependent Claim
79 words
An image display apparatus comprising an electron-emitting device, a modulating electrode capable of modulating an electron beam emitted from said electron-emitting device, in accordance with an information signal, and an image forming member capable of forming an image by irradiation with said electron beam; wherein said modulating electrode, said electron-emitting device and said image forming member are disposed in this order, and said modulating electrode and said electron-emitting device is so laminated as to interpose an insulating substrate therebetween.
Claim 24
Dependent Claim
31 words
An image display apparatus according to Claim 20, wherein a plurality of said electron-emitting devices are arranged, and the distances between said modulating electrode and individual electron-emitting devices are all equal.
Claim 25
Dependent Claim
21 words
An image display apparatus according to Claim 20, wherein said insulating substrate has a thickness of from 0.1 to 200 µm.
Claim 26
Dependent Claim
36 words
An image display apparatus according to Claim 20, wherein the distance between an electron beam emission surface of said electron-emitting device and said modulating electrode is in the range of from 0.1 µm to 200 µm.
Claim 27
Dependent Claim
29 words
An image display apparatus according to Claim 20, wherein said electron-emitting device has a thickness of from 0.01 µm to 200 µm in the direction of electron beam emission.
Claim 28
Dependent Claim
17 words
An image display apparatus according to Claim 20, wherein said electron-emitting device is a surface-conductive electron-emitting device.
Claim 29
Dependent Claim
38 words
An image displsy apparatus according to Claim 20, wherein said electron-emitting device has an electron-emitting area between electrodes provided on said insulating substrate, and electrons are emitted from said electron-emitting area by applying a voltage between said electrodes.
Claim 30
Dependent Claim
39 words
An image display apparatus according to Claim 20, wherein a linear electron-emitting device, which is formed by a plurality of said electron-emitting devices, and a plurality of said modulating electrode are so disposed as to form an XY matrix.
Claim 31
Dependent Claim
25 words
An image display apparatus according to Claim 20, wherein said electron-emitting device and said modulating electrode each independently have a means for applying a voltage.
Claim 32
Dependent Claim
62 words
An image display apparatus comprising an electron-emitting device, a modulating electrode capable of modulating an electron beam emitted from said electron-emitting device, in accordance with an information signal, and an image forming member capable of forming an image by irradiation with said electron beam; wherein said modulating electrode and said electron-emitting device are disposed on the same plane of an insulating substrate.
Claim 33
Dependent Claim
62 words
An image display apparatus comprising an electron-emitting device, a modulating electrode capable of modulating an electron beam emitted from said electron-emitting device, in accordance with an information signal, and an image forming member capable of forming an image by irradiation with said electron beam; wherein said modulating electrode and said electron-emitting device are disposed on the same plane of an insulating substrate.
Claim 34
Dependent Claim
16 words
An image display apparatus according to Claim 29, wherein said insulating substrate has a uniform thickness.
Claim 35
Dependent Claim
37 words
An image display apparatus according to Claim 29, wherein a plurality of said electron-emitting devices are arranged with respect to said modulating electrode, and the distances between said modulating electrode and individual electron-emitting devices are all equal.
Claim 36
Dependent Claim
25 words
An image display apparatus according to Claim 29, wherein the distance between said modulating electrode and said electron-emitting device is not more than 30 µm.
Claim 37
Dependent Claim
29 words
An image display apparatus according to Claim 29, wherein said electron-emitting device has a thickness of from 0.01 µm to 200 µm in the direction of electron beam emission.
Claim 38
Dependent Claim
18 words
An image display apparatus according to Claim 29, wherein said electron-emitting device is a surface conductive electron-emitting device.
Claim 39
Dependent Claim
38 words
An image display apparatus according to Claim 29, wherein said electron-emitting device has an electron-emitting area between electrodes provided on said insulating substrate, and electrons are emitted from said electron-emitting area by applying a voltage between said electrodes.
Claim 40
Dependent Claim
41 words
An image display apparatus according to Claim 29, wherein a linear electron-emitting device, which is formed by arranging a plurality of said electron-emitting device, and a plurality of said modulating electrode plurality are so disposed as to form an XY matrix.
Claim 41
Dependent Claim
25 words
An image display apparatus according to Claim 29, wherein said electron-emitting device and said modulating electrode each independently have a means for applying a voltage.
Claim 42
Dependent Claim
21 words
An electron-beam generator according to Claim 11, wherein said electron-emitting device and said modulating electrode are made of the same material.
Claim 43
Dependent Claim
22 words
An image display apparatus according to Claim 29, wherein said electron-emitting device and said modulating electrode are made of the same material.
References Cited (Backward Citations)
No citation records indexed.
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