EXTERNAL LIGHT BLOCKING FILM AND FILTER FOR DISPLAY DEVICE HAVING THE SAME
An external light blocking film includes a base transmitting external light, and an external light blocking pattern which blocks the external light and is formed at the base. A refraction index of the base is larger than a refraction index of air by more than 0 and not more than 0.56. The base satisfies the following equation: 0°<(θ1−θ2)≦35°, where θ1 is an incident angle at which the external light is incident onto the base, and θ2 is an refraction angle at which the external light refracts due to a difference between the refraction index of the base and the refraction index of air.
1 . An external light blocking film comprising:
a base transmitting external light, and an external light blocking pattern which blocks the external light and is formed at the base,
wherein a refraction index of the base is larger than a refraction index of air by more than 0 and not more than 0.56, and
the base satisfies the following equation:
0°<(θ1−θ2)≦35°,
where θ 1 is an incident angle at which the external light is incident onto the base and θ 2 is a refraction angle at which the external light refracts due to a difference between the refraction index of the base and the refraction index of air.
2 . The external light blocking film of claim 1 further comprising a backing,
wherein the base is formed on the backing and the backing supports the base.
3 . The external light blocking film of claim 1 ,
wherein the external light blocking pattern includes 100 parts by weight of a light curable resin and 0.5 to 10 parts by weight of a colorant.
4 . A filter for a display device comprising an external light blocking film,
wherein the external light blocking film includes a base transmitting external light, and an external light blocking pattern which blocks the external light and is formed at the base,
a refraction index of the base is larger than a refraction index of air by more than 0 and not more than 0.56, and
the base satisfies the following equation:
0°<(θ1−θ2)≦35°,
where θ 1 is an incident angle at which the external light is incident onto the base and θ 2 is a refraction angle at which the external light refracts due to a difference between the refraction index of the base and the refraction index of air.
5 . The filter of claim 4 further comprising a color compensation layer on the external light blocking film.