Conductive polymer film and polarizing plate using the same

Abstract

A conductive polymer film having an antistatic function and an electromagnetic wave shielding function, and also having excellent optical properties such as transparency even if the film is arranged in the interior of LCD. The conductive polymer film comprises a polymer film and a conductive polymer adhered to the surface thereof, wherein the conductive polymer comprises polythiophene or polythiophene derivatives, the polymer film comprises an acetyl cellulose material or a norbornene material, a layer of the conductive polymer has a thickness of 3 μm or less, and the conductive polymer film has a visible light transmission of 78% or more and a surface resistivity of 10 3 -10 12 Ω/square.

1 . A conductive polymer film comprising a polymer film and a conductive polymer adhered to the surface thereof, wherein the conductive polymer comprises polythiophene or polythiophene derivatives, the polymer film comprises an acetyl cellulose material, a layer of the conductive polymer has a thickness of 3 μm or less, and the conductive polymer film has a visible light transmission of 78% or more and a surface resistivity of 10 3 -10 12  Ω/square.  
     
     
         2 . The conductive polymer film as claimed in  claim 1 , wherein the conductive polymer layer further comprises a binder resin.  
     
     
         3 . The conductive polymer film as claimed in  claim 1 , wherein the conductive polymer layer further comprises a dopant.  
     
     
         4 . The conductive polymer film as claimed in  claim 1 , further comprising a hardcoat layer.  
     
     
         5 . A polarizing plate comprising a polarizing film and the conductive polymer film as claimed in  claim 1  as a protective film formed on at least one side of the polarizing film.  
     
     
         6 . The conductive polymer film as claimed in  claim 1 , wherein the conductive polymer film has a surface resistivity of 10 4 -10 8  Ω/square.  
     
     
         7 . The conductive polymer film as claimed in  claim 1 , wherein the layer of the conductive polymer has a thickness of 0.005-3 μm.  
     
     
         8 . The conductive polymer film as claimed in  claim 1 , wherein the layer of the conductive polymer has a thickness of 0.01-1 μm.  
     
     
         9 . The conductive polymer film as claimed in  claim 1 , wherein the layer of the conductive polymer has a thickness of 0.02-0.5 μm.  
     
     
         10 . A polarizing plate comprising a polarizing film and a conductive polymer film comprising a polymer film and a conductive polymer adhered to the surface thereof, wherein the conductive polymer comprises polythiophene or polythiophene derivatives, the polymer film comprises a norbornene material, a layer of the conductive polymer has a thickness of 3 μm or less, and the conductive polymer film has a visible light transmission of 78% or more and a surface resistivity of 10 3 -10 12  Ω/square.  
     
     
         11 . The polarizing plate as claimed in  claim 10 , wherein the conductive polymer film is on the outermost layer.  
     
     
         12 . The conductive polymer film as claimed in  claim 10 , wherein the conductive polymer layer further comprises a binder resin.  
     
     
         13 . The conductive polymer film as claimed in  claim 10 , wherein the conductive polymer layer further comprises a dopant.  
     
     
         14 . The conductive polymer film as claimed in  claim 10 , further comprising a hardcoat layer.  
     
     
         15 . The conductive polymer film as claimed in  claim 10 , wherein the conductive polymer film has a surface resistivity of 10 4 -10 8  Ω/square.  
     
     
         16 . The conductive polymer film as claimed in  claim 10 , wherein the layer of the conductive polymer has a thickness of 0.005-3 μm.  
     
     
         17 . The conductive polymer film as claimed in  claim 10 , wherein the layer of the conductive polymer has a thickness of 0.01-1 μm.  
     
     
         18 . The conductive polymer film as claimed in  claim 10 , wherein the layer of the conductive polymer has a thickness of 0.02-0.5 μm.  
     
     
         19 . The conductive polymer film as claimed in  claim 1 , further comprising an antiglared hardcoat layer.  
     
     
         20 . The conductive polymer film as claimed in  claim 10 , further comprising an antiglared hardcoat layer.