Fluorescent pattern, process for preparing the same, organic alkali developing solution for forming the same, emulsion developing solution for forming the same and back plate for plasma display using the same

Abstract

Disclosed are a phosphor pattern which comprises a calcination product of a phosphor pattern precursor containing (A) an organic material containing at least one selected from the group consisting of an alkali metal and an alkaline earth metal; and (B) a phosphor wherein an amount of the alkali metal or the alkaline earth metal is 2% by weight or less based on the amount of (B) the phosphor, a process for preparing the same, an organic alkali developing solution for forming the same, an emulsion developing solution for forming the same and a back plate for plasma display using the same.

1 . A phosphor pattern which comprises a calcination product of a phosphor pattern precursor containing 
 (A) an organic material containing at least one selected from the group consisting of an alkali metal and an alkaline earth metal; and    (B) a phosphor wherein an amount of the alkali metal or the alkaline earth metal is 2% by weight or less based on the amount of (B) the phosphor.    
     
     
         2 . A process for preparing a phosphor pattern which comprises the steps of 
 preparing a phosphor pattern precursor containing    (A) an organic material containing at least one selected from the group consisting of an alkali metal and an alkaline earth metal and    (B) a phosphor    in which an amount of the alkali metal or the alkaline earth metal is 2% by weight or less based on the amount of (B) the phosphor, and    calcining the precursor.    
     
     
         3 . A process for preparing a phosphor pattern according to  claim 1 , wherein the phosphor pattern precursor is formed by applying the photolithography method carrying out a wet development using (C) an alkali developer to a photosensitive resin composition containing a phosphor.  
     
     
         4 . A process for preparing a phosphor pattern according to  claim 1 , wherein the phosphor pattern precursor is formed by applying the photolithography method carrying out a wet development using an emulsion developer containing water and a solvent to a photosensitive resin composition containing a phosphor.  
     
     
         5 . A process for preparing a phosphor pattern according to  claim 1 , wherein the phosphor pattern precursor is formed by applying the photolithography method carrying out a wet development using an organic alkali developer to a photosensitive resin composition containing the phosphor.  
     
     
         6 . An organic alkali developer for forming a phosphor pattern containing an aliphatic amine, an aromatic amine or a tetraalkyl ammonium hydroxide.  
     
     
         7 . An emulsion developer for forming a phosphor pattern comprising an emulsion containing water and a solvent.  
     
     
         8 . A back plate for a plasma display panel provided with the phosphor pattern according to  claim 1  on the substrate for the plasma display panel.