Patent ID: 7755263

Claim:
An external light-shielding layer for a display filter, the external light-shielding layer comprising: a substantially transparent resin matrix; and a plurality of light-shielding patterns formed on the surface of the matrix and spaced apart from each other in a predetermined interval, each of the plurality of the external light-shielding patterns comprises a bottom portion exposed on one surface of the matrix, and inclined surfaces extending from the bottom portion and defining a wedge-shaped groove in the matrix, all inside of the wedge-shaped groove being filled with a light-absorbing material, wherein a bias angle (α) formed between a traveling direction of the light-shielding patterns and the horizontal side of the matrix is in a range of about 5 to 80 degrees, and the bottom portion area of the light-shielding patterns to the surface area of the transparent resin matrix is 20 to 50%.