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Scanning field emission display

A display and scanning field technology, applied in the direction of cathode ray tube/electron beam tube, discharge tube, electrical components, etc., to achieve the effect of low voltage drive capability and low power consumption

Inactive Publication Date: 2007-07-25
CEBT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] An object of the present invention is to provide a thin flat panel display capable of solving the problems of conventional CRTs and FEDs

Method used

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Embodiment Construction

[0021] A generalized scanning field emission display (SFED) according to the present invention is described in detail below with reference to FIG. 1 . The unit SFED1 capable of electron beam scanning of the present invention has a basic structure of an electron emission source 10 for emitting electrons and an SFED module 20, and the SFED module 20 has an extractor 21 for extracting an electron emission beam from the emitter, for accelerating and A control electrode 22 for focusing the electron beam, and a deflection electrode 23 for scanning the electron beam. The distance between the electron emission source 10 and the extractor 21 is in the range of tens to hundreds of micrometers. The SFED operates sensitively depending on the characteristics of the electron emission source 10 . More specifically, the SFED includes: an electron emission tip 10 fabricated by chemically etching a tungsten wire; a source lens with an extractor 21 and a control electrode 22 bonded to an insula...

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Abstract

Provided is a scanning field emission display (SFED). The SFED includes an electron emitter and a module for inducing electron emission of the electron emitter and deflecting an electron beam. A multi-SFED may be realized as a large-sized thin and flat display by arranging in an n x m array.

Description

technical field [0001] The present invention relates to scanning field emission displays (SFEDs) and multiple SFEDs, and more particularly to an SFED or a micro CRT having the basic structure of a field emission display (FED) and scanning a predetermined field such as a CRT (cathode ray tube). Background technique [0002] A CRT is basically configured as an electron gun, a deflecting yoke (or a deflector), and a phosphor screen, where an image is generated when an electron beam emitted from the electron gun is scanned onto the phosphor screen through the deflecting yoke. However, CRTs, which dominated the display market, gradually shifted their status to flat panel displays (FPDs). The main reason is that although CRTs are superior in screen size, response speed, brightness, viewing angle, color performance, etc. compared with other displays, they have weaknesses in thickness, weight, etc. Therefore, as the screen size increases, the thickness and weight of CRTs increase s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J1/30
CPCH01J31/127H01J1/30H01J29/52
Inventor 金浩燮金秉辰
Owner CEBT
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