US 12,332,517 B2
Optical film set and display device
Tzeng-Ke Shiau, Hsin-Chu (TW); Ying-Shun Syu, Hsin-Chu (TW); and Bo-Chih Pan, Hsin-Chu (TW)
Assigned to Coretronic Corporation, Hsin-Chu (TW)
Filed by Coretronic Corporation, Hsin-Chu (TW)
Filed on Jul. 26, 2024, as Appl. No. 18/784,914.
Claims priority of application No. 202310975033.7 (CN), filed on Aug. 4, 2023.
Prior Publication US 2025/0044642 A1, Feb. 6, 2025
Int. Cl. G02F 1/1333 (2006.01); G02F 1/1335 (2006.01)
CPC G02F 1/133607 (2021.01) 15 Claims
OG exemplary drawing
 
1. An optical film set, comprising:
a first optical film, comprising:
a first base, having a first light entrance surface and a first light exit surface opposite to each other; and
a plurality of first light-guiding structures, disposed on the first light entrance surface of the first base, wherein each of the first light-guiding structures comprises two first light-guiding surfaces opposite to each other, a first included angle is between each of the two first light-guiding surfaces and a normal of the first light entrance surface, and an angle range of the first included angle is greater than 0 degrees and less than 25 degrees.