Ink-jet application method and display device producing method

Abstract

By using an ink-jet application method, a solid content having a desired thickness contained in an application solution is formed in a desired region of a substrate by repeating an applying process and a drying process more than once. In the applying process, the application solution is sprayed and applied on the substrate. In the drying process, the application solution is dried to generate the solid content.

1 . An ink-jet application method comprising steps of: 
 spraying and applying drops of an application solution on a substrate; and    drying the applied application solution to generate a solid content contained in the application solution,    wherein the solid content having a desired thickness is formed in a desired region of the substrate by repeating the applying step and the drying step more than once.    
     
     
         2 . The ink-jet application method according to  claim 1 , wherein an air-knife nozzle dries the application solution in the drying step.  
     
     
         3 . The ink-jet application method according to  claim 1 , wherein a shield plate prevents the application solution from drying in the applying step.  
     
     
         4 . The ink-jet application method according to  claim 1 , wherein the applying step and the drying step are repeated until the thickness of the solid content become to be equal to or more than 1 μm.  
     
     
         5 . The ink-jet application method according to  claim 1 , wherein a bank having an upper end surface in which an ink-shedding process is carried out is formed on the substrate so as to surround the desired region where the application solution is to be applied.  
     
     
         6 . An ink-jet application method comprising steps of: 
 spraying and applying drops of an application solution in a block surrounded by a bank formed on a substrate; and    drying the applied application solution to generate a solid content contained in the application solution,    wherein the solid content having a desired thickness is formed in the block by repeating the applying step and the drying step more than once.    
     
     
         7 . A display device producing method comprising steps of: 
 spraying and applying drops of an application solution on a substrate; and    drying the applied application solution to generate a light shield film,    wherein the light shield film having a desired thickness is formed in a desired region of the substrate by repeating the applying step and the drying step more than once.    
     
     
         8 . A display device producing method comprising steps of: 
 spraying and applying drops of an application solution in a block surrounded by a bank formed on a substrate; and    drying the applied application solution to generate a light shield film,    wherein the light shield film having a desired thickness is formed in the block by repeating the applying step and the drying step more than once.