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Image display and a manufacturing method of the same

a manufacturing method and image technology, applied in the field of image display, can solve the problems of reducing production yields, loss of energy, and inability to use the non-light emission of all elements on one line as display apparatus, and achieve the effect of enhancing production yields

Inactive Publication Date: 2010-10-19
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0026]The present invention has been made to solve the problem of the prior art. An object of the pre

Problems solved by technology

Some of these hot electrons are subjected to scattering under interaction with a solid in the tunneling insulator 12 and the top electrode 11, thus leading to the loss of energy.
However, one having a “line defect” such as non-light emission of all ele

Method used

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  • Image display and a manufacturing method of the same
  • Image display and a manufacturing method of the same
  • Image display and a manufacturing method of the same

Examples

Experimental program
Comparison scheme
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embodiment 1

[0087]An image display according to an embodiment 1 of the present invention has a configuration wherein a display panel (display device of the present invention) in which brightness-modulation elements for respective dots are formed by combining a thin-film electron-emitter matrix functioning as electron emitters used for emitting electrons and phosphors, is used to connect driving circuits to row electrodes and column electrodes of the display panel respectively.

[0088]Now the display panel comprises a cathode plate formed with a thin-film electron-emitter matrix, and a phosphor plate formed with phosphor patterns.

[0089]FIG. 2 is a plan view showing a configuration of part of a thin-film electron-emitter matrix of a cathode plate according to the present embodiment, and FIG. 3 is a plan view showing the relationship in position between the cathode plate and phosphor plate according to the present embodiment, respectively.

[0090]FIG. 4 is a fragmentary cross-sectional view showing a ...

embodiment 2

[0201]FIG. 9 is a diagram showing a configuration of one thin-film electron-emitter element 301 of a thin-film electron-emitter matrix of a cathode plate employed in an embodiment 2 of the present invention. The right side is a plan view and the left side is a cross-sectional view taken along a cut line A-B.

[0202]In the present embodiment, a pixel resistor 305 is formed of the same material as a top electrode 11.

[0203]A production process is simplified by forming the pixel editors 305 with the same material as the top electrode 11 in this way.

[0204]The resistance value of the pixel resistor 305 in this case is defined as the value of resistance between a column electrode 311 and a top electrode busline 32 in a manner similar to the embodiment 1.

[0205]Ones other than such a pixel structure are similar to the first embodiment.

[0206]FIG. 10 is a diagram for describing a method of manufacturing the thin-film electron-emitter matrix of the cathode plate according to the present embodimen...

embodiment 3

[0221]FIG. 11 is a diagram showing a schematic configuration of a thin-film electron-emitter matrix according to an embodiment 3 of the present invention

[0222]In the present embodiment as shown in FIG. 11, pixel resistors 305 are respectively inserted between row electrodes 310 and thin-film electron emitter elements 301.

[0223]Described more specifically, the pixel resistors 305 are respectively inserted between base electrodes 13 for thin-film electron-emitter elements 301 and row electrodes 310.

[0224]As one example for implementing a pixel structure shown in FIG. 11, a specific pixel structure is shown in FIGS. 12 and 13.

[0225]FIG. 12 is a plan view of the thin-film electron-emitter matrix according to the present embodiment.

[0226]FIG. 13 is a cross-sectional view showing a fragmentary section structure of one thin-film electron-emitter element 301 according to the present embodiment, wherein FIG. 13(a) is a cross-sectional view taken along cut line A-B of FIG. 12, and FIG. 13(b) ...

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Abstract

The present invention provides an image display capable of enhancing a production yield. The image display comprises a display device including a first plate which has a plurality of electron-emitter elements each having a structure comprised of a base electrode, an insulating layer and a top electrode stacked on one another in this order, the electron-emitter element emitting electrons from the surface of the top electrode when a voltage of positive polarity is applied to the top electrode; a plurality of first electrodes for respectively applying driving voltages to the base electrodes of the electron-emitter elements lying in a row (or column) direction; and a plurality of second electrodes for respectively applying driving voltages to the top electrodes of the electron-emitter elements lying in the column (or row) direction, a frame component, and a second plate having phosphors, wherein a space surrounded by the first plate, the frame component and the second plate is brought into vacuum. In the display apparatus, the at least one electron-emitter element includes the base electrode and the top electrode, at least one of which is connected to the first electrode or the second electrode through a resistor element.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to an image display and a method of manufacturing the same, and particularly to a technology effective for application to a display apparatus which has thin-film electron emitters having an electrode-insulator-electrode structure to emit electrons into vacuum.[0002]The thin-film electron emitters are electron-emitter elements each using hot electrons produced by applying a high electric field to an insulator.[0003]As a typical example, an MIM (Metal-Insulator-Metal) electron emitter comprising a thin film having a three-layer structure of a top electrode-insulating layer-base electrode will be explained.[0004]FIG. 14 is a diagram for describing the principle of operation of an MIM electron emitter illustrated as a typical example of a thin-film electron emitter.[0005]A driving voltage is applied between a top electrode 11 and a base electrode 13 to set an electric field within a tunneling insulator 12 to 1 MV / cm to 10 MV...

Claims

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Application Information

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IPC IPC(8): G09G3/10H01J9/02G09F9/30G09G3/22H01J1/312H01J29/04H01J31/12
CPCB82Y10/00H01J1/312H01J31/127H01J2201/319H01J2329/00H01J31/12
Inventor SUZUKI, MUTSUMISAGAWA, MASAKAZUKUSUNOKI, TOSHIAKI
Owner HITACHI LTD