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EP0476975A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Flat panel display device

Assignee: Yeda Research and Development Co Ltd
•
Filing: 1991-09-17
•
Granted: —
•
Expires: 2011-09-17
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Abstract

Abstract A flat panel display device includes a backplate (4) and a transparent front face (6) delimiting an hermetically sealed vacuum space and an array (9) of selectively actuable electron-emitting cold cathodes disposed adjacent to, or on the backplate. A stratum (16) including an electron-multiplier (18) is placed in close proximity to the array of cold cathodes. The device also includes a luminescing surface (22) capable of emitting light upon being impinged upon by a pulse of electron beam emerging from the electronic multiplier. One embodiment includes an electron multiplier having an amorphous structure and cold cathodes of the metal-insulator-metal tunnelling type.

Inventors

  • 👤 Victor Shenkar
  • 👤 Ron Naaman
  • 👤 Zeev C/O The Weizmann Institut Of Science Vager

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 03:13
CPC Classifications
B; B82; B82Y; B82Y10/00; H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/123; H01J31/125; H01J31/127; H01J2201/00; H01J2201/30; H01J2201/312; H01J2201/3125

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 75 words
A flat panel display device, comprising: a backplate and a transparent front face delimiting an hermetically sealed vacuum space; an array of selectively actuatable electron-emitting cold cathodes disposed adjacent to, or on said backplate; a stratum including electron-multiplier means placed in, at least, close proximity to said array of cold cathodes; and a luminescing surface capable of emitting light upon being impinged upon by a pulse of electron beam emerging from said electronic multiplier means.
Claim 2
Dependent Claim 32 words
The device as claimed in claim 1, wherein said stratum incorporating a first layer comprising a collection of partially conductive electron-emitting packed particles and a second layer consisting of a perforated plate.
Claim 3
Dependent Claim 26 words
The device as claimed in claim 1, wherein said stratum incorporating an apertured layer of insulating material and said electron-multiplier means are disposed in said apertures.
Claim 4
Dependent Claim 14 words
The device as claimed in claim 1, wherein said stratum comprises a channel-electron multiplier.
Claim 5
Dependent Claim 20 words
The device as claimed in claim 1, further comprising a perforated spacer interposed between said stratum and said front face.
Claim 6
Dependent Claim 20 words
The device as claimed in claim 1, wherein said electron multiplier means comprises a collection of metal-doped packed glass particles.
Claim 7
Dependent Claim 25 words
The device as claimed in claim 1, wherein said array of cold cathodes is made of thin-film conductors separated by a thin layer of oxide.

References Cited (Backward Citations)

GB1295832A Cited
EP0107217A1 Cited
US4577133A Cited
EP0353632A2 Cited

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