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Surface conduction electron emission displaying part and driving method

A technology for emitting display and conducting electrons, applied to static indicators, image/graphic display tubes, instruments, etc., can solve the problems of difficult production and small size of electron emission source, so as to reduce production difficulty, save raw material costs, and reduce production costs. cost effect

Inactive Publication Date: 2011-02-09
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, Canon’s SED production adopts the method of producing an electron emission source for each sub-pixel. In this way, with the improvement of display resolution, the size of the electron emission source is very small, which brings difficulties in production.

Method used

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  • Surface conduction electron emission displaying part and driving method
  • Surface conduction electron emission displaying part and driving method
  • Surface conduction electron emission displaying part and driving method

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Embodiment Construction

[0027] The present invention will be further described in detail below with reference to the drawings and embodiments, but not limited to these embodiments.

[0028] figure 1 A pixel unit structure of an SED display is shown. The SED includes a lower glass substrate 100 and an upper glass substrate 110 . Each pixel unit includes three sub-pixels of red, green and blue. The electron emission source 120 is fabricated on the lower glass substrate 100 . The electron emission source 120 is composed of two device electrodes 130 on the lower glass substrate 100 and an electron emission film 140 deposited between the two electrodes, which can be prepared by methods such as electron beam evaporation and magnetron sputtering, wherein the device electrodes are made of Pt, Cu, Ni, Cr, etc. and their composite materials, the device electrode square resistance value is 0.1Ω / □~1Ω / □, the electron emission film is made of ZnO, PdO and other materials, and the film thickness is 10nm~200nm. Aft...

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Abstract

The invention discloses a surface conduction electron emission displaying part and a driving method. A row of electron emission sources can scan two rows of luminescent pixel points by utilizing the characteristic that luminescent pixel points on an anode plate changes along with the reversal of the polarity of driving voltage applied by the electrodes at both end of an electron emission source on a cathode plate. Each displaying part unit comprises an electron emission source on a cathode plate and two symmetrical anode plate fluorescent powder pixel points; a frame of image is formed by different sub-field images, comprising a first sub-field and a second sub-field. Therefore, the dynamic resolution of the surface conduction electron emission displaying part is doubled in the condition that the number of electron emission sources is not changed.

Description

technical field [0001] The present invention relates to a surface conduction electron emission display device and its driving method, in particular to a device capable of changing the electron bombardment of phosphor pixels on the anode plate by changing the polarity of the voltage applied to the electrodes at both ends of the electron emission source on the cathode plate A position display device and a driving method thereof. Background technique [0002] The Surface-conduction Electron-emitter Display (SED) proposed by Canon Corporation of Japan is a kind of FED, and its display effect is very outstanding among current flat panel display devices. [0003] The imaging principle of SED is similar to the traditional cathode ray tube (Cathode Ray Tube, CRT). Unlike CRT, SED places the glass plate coated with fluorescent material in parallel with the glass substrate covered with a large number of surface conduction electron emission sources. , such a structure can make the thi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32G09G3/20H01J31/12
Inventor 吴胜利赵令国梁志虎熊斯梁张劲涛刘纯亮
Owner XI AN JIAOTONG UNIV