Method of manufacturing a display device having an electron source

Abstract

To obtain a paste for electron sources which can enhance heat resistance of carbon nanotubes, which can suppress burn-out of the carbon nanotubes even during heating at a high temperature, and can exhibit a high electron emission performance, boron (B) is added to the paste formed of the carbon nanotubes and metal. Due to the addition of boron, the oxidation of the carbon nanotubes can be suppressed, and the degradation of the electron emission characteristics and the degradation of the uniformity of the emission of electrons during the heating process such as baking can be prevented.

1 - 23 . (canceled)  
   
   
       24 . A method of manufacturing a display device having an electron source film, an anode, and a phosphor screen comprising steps of: 
 forming a paste by mixing an inorganic carbon material that is an electron source with at least one particle of a metal or an alloy and with a boron material that is selected from at least one of a single form of boron, a solid solution of boron, an inter-metallic compound of boron, and a boron compound;    printing said on a substrate to form a paste layer; and    baking said substrate on which the paste layer is formed to form the electron source film.    
   
   
       25 . A manufacturing method of display device according to  claim 24 , wherein the inorganic carbon material includes carbon nanotubes or carbon nanofibers.  
   
   
       26 . A manufacturing method of display device according to  claim 24 , wherein the inter-metallic compound includes silver boride (AgB 2 ) or nickel boride (Ni 3 B or Ni 2 B).  
   
   
       27 . A manufacturing method of display device according to  claim 25 , wherein the inter-metallic compound includes silver boride (AgB 2 ) or nickel boride (Ni 3 B or Ni 2 B).  
   
   
       28 . A manufacturing method of display device according to  claim 25 , wherein a content of the carbon nanotubes or the carbon nanofibers is approximately not less than 1% as a weight with respect to a total quantity of the inorganic carbon material.  
   
   
       29 . A manufacturing method of display device according to  claim 24 , wherein the metal or the alloy includes at least one element selected from a group consisting of Ag, Ni, Au, Al, Fe, Cu, Zn, Pd, W, Mo, Ta, Ti, Cr, and Ir.  
   
   
       30 . A manufacturing method of display device according to  claim 25 , wherein the metal or the alloy includes at least one element selected from a group consisting of Ag, Ni, Au, Al, Fe, Cu, Zn, Pd, W, Mo, Ta, Ti, Cr and Ir.  
   
   
       31 . A manufacturing method of display device according to  claim 24 , wherein the metal or the alloy contains at least one of Ag or Ni as a main component.  
   
   
       32 . A manufacturing method of display device according to  claim 25 , wherein the metal or the alloy contains at least one of Ag or Ni as a main component.