| CPC G02B 5/003 (2013.01) | 12 Claims |
|
1. A pattern film, comprising:
a base layer; and
a spacer pattern formed on the base layer,
wherein the spacer pattern comprises a partition wall spacer and a ball spacer,
wherein the partition wall spacer comprises a plurality of spacer dots and a spacer line connecting the spacer dots,
wherein the ball spacer is one of embedded in, partially embedded in, or in contact with the partition wall spacer,
wherein, when any 3 or more spacer dots are selected among the plurality of spacer dots, the spacer line forms a closed figure having the selected spacer dots at the vertices thereof, wherein the selected spacer dots are not present inside the closed figure,
wherein a length of at least one side of the closed figure is different from the lengths of the remaining sides,
wherein each spacer dot in the plurality has irregularity of 50% or greater,
wherein a rectangular 200×200 pixel area is set based on an area of the pattern film through which light passes from an LED light source, and
wherein, using a lower left end corner of the rectangular 200×200 pixel area as x axis, y axis (0,0), the rectangular 200×200 pixel area of (0,0) to (200,200) satisfies the following Equation 3:
2≤D1−D2(%)≤10 [Equation 3]
in Equation 3, D1 is a diffraction ratio when the spacer dot of the pattern film has irregularity of 0%; D2 is a diffraction ratio when the spacer dot of the pattern film has irregularity of 70%; and each diffraction ratio satisfies the following Equation 4:
[1−Sc/S]×100(%) [Equation 4]
in Equation 4, S is a total amount of light in the rectangular 200×200 pixel area of (0,0) to (200,200); and Sc is an amount of pixel light in an area having pixels employing (100,100) as an origin and having a radius of 50 in the rectangular 200×200 pixel area of (0,0) to (200,200).
|