Patterned graphene field emission cathode and preparation method thereof

A cathode emitting and patterning technology, which is applied in cold cathode manufacturing, electrode system manufacturing, discharge tube/lamp manufacturing, etc., can solve the problems that cannot be adopted, graphene cathode image preparation cannot be realized, polystyrene softening temperature is low, etc. problem, to achieve the effect of low production cost, high electron emission current density and low cost
CN102339712BActive Publication Date: 2013-07-31FUZHOU UNIV
2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUZHOU UNIV
Publication Date
2013-07-31

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a patterned graphene field emission cathode and a preparation method thereof. The patterned graphene field emission cathode comprises a cathode substrate, a cathode arranged on the surface of the cathode substrate and a graphene layer arranged on the surface of the cathode, wherein a conductive adhesion layer is introduced between the cathode and the graphite, and the patterned preparation of the graphene layer is realized through a photoetching-stripping technology, and therefore the patterned field emission cathode is obtained. The graphene field emission cathode disclosed by the invention has the advantages of high emission current density, simple technological process, low cost and emission stability and uniformity, realizes patterned preparation and is suitable for a field emission display, a field emission flat light source, a field emission backlight source for a liquid crystal display and a cold cathode of a vacuum electronic device.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of vacuum electronics, and specifically relates to a patterned graphene field electron emission cathode, which is suitable for making field emission cathodes in field emission flat panel displays (FEDs) and cold cathodes for vacuum electronic devices. Background technique

[0002] Field emission display device is a new type of flat panel display technology. Field emission display technology is an extension of cathode ray tube (CRT) technology. It has the advantages of wide viewing angle, bright colors and fast response speed of CRT display. In the current Among all kinds of flat panel displays, only FED can achieve the image display quality of traditional CRT, and at the same time, it has the advantages of thinness and lightness such as liquid crystal display (LCD). The core component of the FED display is the field emission cold cathode array, in which the cathode material determines the performance of the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More