Electron emission source surface activating mould material composition for field-emission display

Abstract

The invention relates to a molding material composition for the surface activation of the electron emission source of a field emission displayer. The material includes: 65% of waterborne polyvinyl acetate (PVAc) emulsion with 30 ~ 40% of solid ingredients, 25 ~ 27% of water, 1% of polyvinyl alcohol (PVA), 0.3% of polymer(PES) with ethylene oxide and propylene oxide, 7% of glycerol and 0.3% of Polyoxyethylene Sorbitan Monolaurate (SLS). It modulates the material to latex, and it coats the latex on the surface of the electron emission source of the cathode substrate, and then, it bakes and removes the material.

Description

Technical field [0001] The invention relates to a casting material composition for surface activation of a cathode plate electron emission source of a field emission display of a display. Background technique [0002] In the prior art, the traditional manufacturing process of the cathode plate of the carbon nanotube field emission display uses carbon nanotubes as the electron-emitting material on the cathode conductive layer. The manufacturing method may include chemical vapor deposition (CVD), or Photosensitive carbon nanotube solution is used to totemize the cathode conductive layer in each pixel. It can also be made by spraying carbon nanotube solution with a mesh cover, or an electrophoresis method to coat and deposit carbon nanotubes on the cathode conductive layer However, regardless of the production method, it is necessary to sinter the pattern at a high temperature of about 550°C after the pattern is produced, so as to remove the solvent remaining in the production proce...

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Problems solved by technology

[0008] The main purpose of the present invention is to solve the defect that the surface activation mechanism of the above-mentioned electron emission source cannot provide an ideal casting film-forming material. Therefore, the present invention utilizes water-based casting material latex, which can form an ideal film-forming thickness and utilize its water retention characteristics in order to maintain its elasticity, and after casting into a film, it has good tensile properties to facilitate the release mechanism, and the effect of peeling can be achieved by simple release of the film, because the material has elasticity after film formation, which is beneficial After the casting film is formed, the carbon tube layer is tightly pressed when the gravity is pressed down, which does not affect the implementation of the peeling film, and it is not easy to leave glue after peeling the film

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