Patent ID: 7690819

Claim:
An external light shielding film comprising: a lens pattern formed on a surface of a base substrate and including a plurality of aspheric lenses; and an external light shielding pattern formed on another surface of the base substrate, wherein an aspheric surface (Z) of each of the plurality of aspheric lenses is obtained by z ⁡ ( r ) = Cr 2 1 + 1 - ( 1 + k ) ⁢ C 2 ⁢ r 2 + Ar 4 + Br 6 + Cr 8 + Dr 10 , where ‘r’ denotes a radius of a spherical surface, ‘C’ denotes a spherical coefficient, ‘k’ denotes a conic constant, and ‘A’, ‘B’, ‘C’, and ‘D’ denote an integer of 2 through 7, respectively.