Resin sheet, liquid crystal cell substrate, liquid crystal display device, substrate for an electroluminescence display device, electroluminescence display device, and a substrate for a solar cell

Abstract

There is provided a resin sheet that achieves improvement in lightweight, low-profile and high impact characteristics, suppresses thermal shrinkage and expansion and is excellent in light transparency so as to prevent the display quality or the like of a display device from being deteriorated, as well as a substrate for a display device, a display device and a substrate for a solar cell, each having the aforesaid resin sheet. A resin sheet includes a cured resin layer containing a glass fiber cloth-like material and an overcoat layer laminated on the cured resin layer to have a surface roughness Rt of 200 nm or less, and is structured to have a haze value of 10% or lower.

1 . A resin sheet, characterized in that it comprises a cured resin layer containing a glass fiber cloth-like material and an overcoat layer laminated on the cured resin layer to have a surface roughness Rt of 200 nm or less, and is structured to have a haze value of 10% or lower.  
     
     
         2 . A resin sheet according to  claim 1 , wherein the refractive index difference between a resin that forms the cured resin layer, and the glass fiber cloth-like material is 0.01 or less.  
     
     
         3 . A resin sheet according to  claim 1 , wherein the refractive index difference between a resin that forms the cured resin layer and a resin that forms the overcoat layer is 0.03 or less.  
     
     
         4 . A resin sheet according to  claim 1 , wherein the overcoat layer is formed by a UV curing resin.  
     
     
         5 . A resin sheet according to  claim 4 , wherein the UV curing resin is a mixture of an oxetane resin and an epoxy resin.  
     
     
         6 . A resin sheet according to  claim 1 , wherein a resin that forms the cured resin layer is an epoxy resin.  
     
     
         7 . A resin sheet according to  claim 1 , whose coefficient of linear expansion is equal to or less than 3.0×10 −5 /° C. at 25 to 160° C.  
     
     
         8 . A resin sheet according to  claim 1 , whose light transmittance is 88% or more.  
     
     
         9 . A resin sheet according to  claim 1 , wherein a gas barrier layer is further laminated.  
     
     
         10 . A resin sheet according to  claim 1 , wherein a hard-coat layer is further laminated.  
     
     
         11 . A liquid crystal cell substrate, characterized in that it comprises the resin sheet of  claim 1 .  
     
     
         12 . A liquid crystal display device, characterized in that it comprises the liquid crystal cell substrate of  claim 11 .  
     
     
         13 . A substrate for an electroluminescence display device, characterized in that it comprises the resin sheet of  claim 1 .  
     
     
         14 . An electroluminescence display device, characterized in that it comprises the substrate for the electroluminescence display device of  claim 13 .  
     
     
         15 . A substrate for a solar cell, characterized in that it comprises the resin sheet of  claim 1.