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Electron emission element driving method, electronic source driving and mfg. method and display

A technology of electron emission and driving method, which can be used in the manufacture of electrical components, electrode systems, and the manufacture of discharge tubes/lamps, etc., and can solve problems such as

Inactive Publication Date: 2007-11-28
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in order to remove all these reasons, very high-level manufacturing equipment and extremely strict process management are required. When these conditions are met, the manufacturing cost will become astronomical.

Method used

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  • Electron emission element driving method, electronic source driving and mfg. method and display
  • Electron emission element driving method, electronic source driving and mfg. method and display
  • Electron emission element driving method, electronic source driving and mfg. method and display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0110] The driving method of the electron emission element of Embodiment 1 of the present invention is the kind of scheme shown in Fig. 1, Fig. 2, as electron emission element, also adopts the anode that has cathode (cathode electrode) and is only H from the top of cathode An electron emission element with a two-terminal structure (anode electrode).

[0111] That is, the electron emission element of this embodiment, as shown in FIG. ) 95, the voltage source 91 can be used to apply the prescribed voltage Va. Moreover, the driving method of the electron emission element of the present embodiment is to apply the maximum voltage between the cathode electrode 93 and the counter electrode 95 before the start of driving (typically, at the time of manufacture), that is, the maximum voltage applied between the cathode electrode 93 and the counter electrode 95 is used. The electron emission element is driven by applying a driving voltage V (voltage for driving the electron emission ele...

Embodiment approach 2

[0116] The electron emission element of this embodiment will be described using FIG. 6 and FIG. 7 . The electron emission element of this embodiment is an electron emission element of a so-called 3-terminal structure. Also, FIG. 7 is a typical cross-sectional view showing how the electron-emitting element of this embodiment is driven, and FIG. 6(a) A typical cross-sectional view between AA' (Fig. 6(b)).

[0117] Both the control electrode 12 and the cathode electrode 13 are arranged at intervals on the substrate 11 . Furthermore, the tip (indicated by reference numeral 64 ) of the carbon fiber aggregate 14 arranged on the cathode electrode 13 is located closer to the anode electrode 62 than the control electrode 12 (see FIG. 7 ).

[0118] In this example, the electron emission from the carbon fiber aggregate 14 is started by applying a voltage between the control electrode 12 and the cathode electrode. That is, the potential of the anode electrode is substantially unfavorab...

Embodiment approach 3

[0188] Next, as Embodiment 3 of the present invention, an electron source driving method for arranging a plurality of electron emission elements having various kinds of the above-mentioned carbon fiber aggregates and a manufacturing method for reducing the difference in electron emission characteristics of each electron emission element (characteristic adjustment step) were carried out. illustrate.

[0189] Fig. 14 is an example of an electron source in which a plurality of electron-emitting elements fabricated by the above method are arranged in a matrix. Fig. 15 typically shows a section along A-A' in Fig. 14 . As for the arrangement shape of the electron-emitting elements of the present invention, it is not limited to the shape of FIG. 14 .

[0190] In the example of FIG. 14, the column direction wiring 161 is connected to the control electrode 165 of an element (the member shown by reference numeral 12 in FIGS. 6 and 7). The row-direction wiring 162 is electrically conne...

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Abstract

In a driving method for an electron-emitting device in which an electron-emitting member made of an aggregate of carbon fibers is made to emit electrons by a voltage being applied between a cathode electrode on which the electron-emitting member is formed and a counter electrode disposed in opposition to the cathode electrode, a driving voltage V smaller than a maximum applied voltage Vmax is applied between the cathode electrode and the counter electrode to drive the electron-emitting device, the maximum applied voltage Vmax being a maximum voltage applied between the cathode electrode and the counter electrode before the start of driving.

Description

technical field [0001] The present invention relates to a driving method of an electron emission element using carbon fibers, a driving method of an electron source, a manufacturing method of the electron source, and an image display. Background technique [0002] Conventionally, an electric field emission type (hereinafter abbreviated as FE type) is known as an electron emission element. [0003] Regarding the FE type electron emission element, it has been published in J. Appl. Phys. Vol. 47, No. 12, p. 5248 (1997) and the like. [0004] In recent years, fibrous carbon materials such as carbon nanotubes having diameters of a nanometer size have been paid attention to in the above-mentioned FE-type electron emission materials. [0005] Carbon nanotubes themselves are described, for example, in Nature, 354, (1991) 56. [0006] Aggregates of carbon fibers are disclosed in, for example, JP-A-2000-095509 and Applied Physics Letters 76(2000) pp.2367-2369. [0007] And, just ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J9/02H01J31/12G09G3/22H01J1/30G09G3/20H01J1/304
CPCH01J31/12A47L23/205
Inventor 大山一成教学正文塚本健夫
Owner CANON KK