Patent EP0312007A2 successfully refreshed from Google Patents.
EP0312007A2
Expired / Lapsed
EP
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Electron beam emitting device and image displaying device by use thereof
Assignee: Canon Inc
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Filing: 1988-10-12
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Granted: —
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Expires: 2008-10-12
Abstract
Abstract An electron beam emitting device, comprises a surface conduction type of thin film device having an electron emitting area and at least a pair of electrodes for passing current through the electron emitting area, and a voltage applying means for applying independently on each of said electrodes, said voltage applying means being a means for applying voltage on each electrode so that each of the electrodes may become higher or lower in potential relative to the other electrode.
Inventors
- 👤 Hidetoshi Suzuki
- 👤 Ichiro Nomura
- 👤 Tetsuya Kaneko
- 👤 Toshihiko Takeda
- 👤 Yoshikazu Banno
- 👤 Kojiro Yokono
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 14:28
CPC Classifications
B; B82; B82Y; B82Y10/00; H; H01; H01J; H01J1/00; H01J1/02; H01J1/30; H01J1/316; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/123; H01J31/125; H01J31/127; H01J31/15; H01J2201/00; H01J2201/30; H01J2201/316; H01J2201/3165
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
78 words
An electron beam emitting device, comprising a surface conduction type of thin film device having an electron emitting area and at least a pair of electrodes for passing current through the electron emitting area, and a voltage applying means for applying independently on each of said electrodes, said voltage applying means being a means for applying voltage on each electrode so that each of said electrodes may become higher or lower in potential relative to the other electrode.
Claim 2
Dependent Claim
78 words
An electron beam emitting device, comprising a surface conduction type of thin film device having an electron emitting area and at least a pair of electrodes for passing current through the electron emitting area, and a voltage applying means for applying independently on each of said electrodes, said voltage applying means being a means for applying voltage on each electrode so that each of said electrodes may become higher or lower in potential relative to the other electrode.
Claim 3
Dependent Claim
28 words
An electron beam emitting device according to Claim 1, wherein said voltage applying means has a power source and a switch provided between the power source and electrodes.
Claim 4
Dependent Claim
26 words
An electron beam emitting device according to Claim 1, wherein said voltage applying means is a means for applying voltage on either one of said electrodes.
Claim 5
Dependent Claim
35 words
An electron beam emitting device according to Claim 1, wherein said voltage applying means is a means for applying voltage on either one of said electrodes, and no voltage is applied on the other electrode.
Claim 6
Dependent Claim
86 words
An electron beam emitting device, comprising a surface conduction type of thin film device having an electron emitting area and at least a pair of electrodes for passing current through electron emitting area, and a voltage applying means for applying independently on each of said electrodes, said voltage applying being a means capable of varying magnitude of voltage applied on each electrode and applying voltage on each electrode so that each of said electrodes may become higher or lower in potential relative to the other electrode.
Claim 7
Dependent Claim
86 words
An electron beam emitting device, comprising a surface conduction type of thin film device having an electron emitting area and at least a pair of electrodes for passing current through electron emitting area, and a voltage applying means for applying independently on each of said electrodes, said voltage applying being a means capable of varying magnitude of voltage applied on each electrode and applying voltage on each electrode so that each of said electrodes may become higher or lower in potential relative to the other electrode.
Claim 8
Dependent Claim
22 words
An electron beam emitting device according to Claim 5, wherein said voltage applying means has a power source and a D/A converter.
Claim 9
Dependent Claim
26 words
An electron beam emitting device according to Claim 5, wherein said voltage applying means is a means for applying voltage on either one of said electrodes.
Claim 10
Dependent Claim
35 words
An electron beam emitting device according to Claim 5, wherein said voltage applying means is a means for applying voltage on either one of said electrodes, and no voltage is applied on the other electrode.
Claim 11
Dependent Claim
35 words
An electron beam emitting device according to Claim 5, wherein said voltage applying means has a memory means for memorizing a plural number of voltage values applied in multiple steps on each of said electrodes.
Claim 12
Dependent Claim
115 words
An image displaying device comprising an electron beam emitting device and a light emitting member which draws an image by emitting light from said emitting member by irradiation of electron beam emitted from said electron beam emitting device, said electron beam emitting device having a surface conduction type of thin film device having an electron emitting area and at least a pair of electrodes for passing current through the electron emitting area, and a voltage applying means for applying independently on each of said electrodes, said voltage applying means being a means for applying on each electrode so that each of said electrodes may become higher or lower in potential relative to the other electrode.
Claim 13
Dependent Claim
115 words
An image displaying device comprising an electron beam emitting device and a light emitting member which draws an image by emitting light from said emitting member by irradiation of electron beam emitted from said electron beam emitting device, said electron beam emitting device having a surface conduction type of thin film device having an electron emitting area and at least a pair of electrodes for passing current through the electron emitting area, and a voltage applying means for applying independently on each of said electrodes, said voltage applying means being a means for applying on each electrode so that each of said electrodes may become higher or lower in potential relative to the other electrode.
Claim 14
Dependent Claim
27 words
An image displaying device according to Claim 10, wherein said light emitting member is arranged in a plural number along a plural number of columns and rows.
Claim 15
Dependent Claim
28 words
An image displaying device according to Claim 10, wherein said electron beam emitting device is arranged in a plural number along a plural number of columns and rows.
Claim 16
Dependent Claim
25 words
An image displaying device according to Claim 10, wherein a plural number of said light emitting members are provided for one electron beam emitting device.
Claim 17
Dependent Claim
27 words
An image displaying device according to Claim 10, wherein said voltage applying means has a power source and a switch provided between the power source and electrodes.
Claim 18
Dependent Claim
25 words
An image displaying device according to Claim 10, wherein said voltage applying means is a means for applying voltage on either one of said electrodes.
Claim 19
Dependent Claim
34 words
An image displaying device according to Claim 10, wherein said voltage applying means is a means for applying voltage on either one of said electrodes, and no voltage is applied on the other electrode.
Claim 20
Dependent Claim
127 words
An image displaying device comprising an electron beam emitting device and a light emitting member which draws an image by emitting light from said light emitting member by irradiation of electron beam emitted from said electron beam emitting device, said electron beam emitting device having a surface conduction type of thin film device having an electron emitting area and at least a pair of electrodes for passing current through the electron emitting area, and a voltage applying means for applying independently on each of said electrodes, said voltage applying means being a means capable of varying magnitude of voltage applied on each electrode and applying voltage on each electrode so that each of said electrodes may become higher or lower in potential relative to the other electrode.
Claim 21
Dependent Claim
127 words
An image displaying device comprising an electron beam emitting device and a light emitting member which draws an image by emitting light from said light emitting member by irradiation of electron beam emitted from said electron beam emitting device, said electron beam emitting device having a surface conduction type of thin film device having an electron emitting area and at least a pair of electrodes for passing current through the electron emitting area, and a voltage applying means for applying independently on each of said electrodes, said voltage applying means being a means capable of varying magnitude of voltage applied on each electrode and applying voltage on each electrode so that each of said electrodes may become higher or lower in potential relative to the other electrode.
Claim 22
Dependent Claim
27 words
An image displaying device according to Claim 17, wherein said light emitting member is arranged in a plural number along a plural number of columns and rows.
Claim 23
Dependent Claim
28 words
An image displaying device according to Claim 17, wherein said electron beam emitting device is arranged in a plural number along a plural number of columns and rows.
Claim 24
Dependent Claim
25 words
An image displaying device according to Claim 17, wherein a plural number of said light emitting members are provided for one electron beam emitting device.
Claim 25
Dependent Claim
21 words
An image displaying device according to Claim 17, wherein said voltage applying means has a power source and a D/A converter.
Claim 26
Dependent Claim
25 words
An image displaying device according to Claim 17, wherein said voltage applying means is a means for applying voltage on either one of said electrodes.
Claim 27
Dependent Claim
34 words
An image displaying device according to Claim 17, wherein said voltage applying means is a means for applying voltage on either one of said electrodes, and no voltage is applied on the other electrode.
Claim 28
Dependent Claim
34 words
An image displaying device according to Claim 17, wherein said voltage applying means has a memory means for memorizing a plural number of voltage values applied in multiple steps on each of said electrodes.
References Cited (Backward Citations)
No citation records indexed.
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