US 12,461,294 B2
Polarizing film and display apparatus employing the same
Beonghun Beon, Yongin-si (KR); Dukjin Lee, Yongin-si (KR); Woosuk Jung, Yongin-si (KR); and Hyosung Hong, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Jan. 13, 2023, as Appl. No. 18/154,378.
Claims priority of application No. 10-2022-0065288 (KR), filed on May 27, 2022.
Prior Publication US 2024/0004115 A1, Jan. 4, 2024
Int. Cl. G02B 5/30 (2006.01)
CPC G02B 5/3016 (2013.01) [G02B 5/305 (2013.01); G02B 5/3083 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A polarizing film comprising:
a polarizing layer; and
a twisted liquid crystal layer arranged on one side of the polarizing layer, and comprising liquid crystal molecules arranged to have different degrees of inclination from each other with respect to a transmission axis of the polarizing layer in a thickness direction,
wherein a top tilting angle is about 64 degrees (°) to about 75°, the top tilting angle is an angle at which the liquid crystal molecules arranged in an uppermost portion of the twisted liquid crystal layer are inclined with respect to the transmission axis of the polarizing layer,
a bottom tilting angle is about 135° to about 145°, the bottom tilting angle is an angle at which the liquid crystal molecules arranged in a lowermost portion of the twisted liquid crystal layer are inclined with respect to the transmission axis of the polarizing layer, and
the twisted liquid crystal layer has a thickness of about 2.5 micrometers (μm) to about 3 μm in the thickness direction.