US 11,747,667 B2
Light redirecting film, a polarizer and a display comprising the same
Cyun-Tai Hong, Taoyuan (TW); Yu-Da Chen, Taoyuan (TW); Hsu-Cheng Cheng, Taoyuan (TW); Meng-Chieh Wu, Taoyuan (TW); Chuen-Nan Shen, Taoyuan (TW); and Kuo-Jung Huang, Taoyuan (TW)
Assigned to BenQ Materials Corporation, Taoyuan (TW)
Filed by BenQ Materials Corporation, Taoyuan (TW)
Filed on Mar. 29, 2022, as Appl. No. 17/706,755.
Claims priority of application No. 110144782 (TW), filed on Dec. 1, 2021.
Prior Publication US 2023/0168533 A1, Jun. 1, 2023
Int. Cl. G02F 1/1335 (2006.01); G02B 5/30 (2006.01); G02B 5/18 (2006.01)
CPC G02F 1/133507 (2021.01) [G02B 5/1866 (2013.01); G02B 5/3033 (2013.01); G02F 1/133528 (2013.01)] 40 Claims
OG exemplary drawing
 
1. A light redirecting film, comprising:
a light redistribution layer including:
a plurality of strip-shaped micro prisms extending along a first direction and arranged at intervals; and
a plurality of diffraction gratings arranged at bottoms of the intervals between the adjacent strip-shaped micro prisms, wherein each of the strip-shaped micro prisms has at least one inclined light-guide surface, and the bottom of each interval has at least one set of diffraction gratings; and
a light guide layer disposed on the light redistribution layer, and in contact with the strip-shaped micro prisms and the diffraction gratings.