US 12,455,467 B2
Viewing angle controlling film and display device comprising the same
SuJeong Lee, Seoul (KR); SungHee Kim, Paju-si (KR); and Jaehyun Park, Seongnam-si (KR)
Assigned to LG Display Co., Ltd, (KR)
Filed by LG DISPLAY CO., LTD., Seoul (KR)
Filed on Jul. 15, 2022, as Appl. No. 17/866,047.
Claims priority of application No. 10-2021-0113528 (KR), filed on Aug. 26, 2021.
Prior Publication US 2023/0081704 A1, Mar. 16, 2023
Int. Cl. G02F 1/13 (2006.01); G02F 1/167 (2019.01); G02F 1/1676 (2019.01); G02F 1/1675 (2019.01); H10K 59/50 (2023.01)
CPC G02F 1/1323 (2013.01) [G02F 1/167 (2013.01); G02F 1/1676 (2019.01); G02F 2001/1678 (2013.01); H10K 59/50 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A viewing angle controlling film, comprising:
a first base material;
a first electrode disposed on the first base material;
a transparent resin layer disposed on the first electrode and having a plurality of accommodating units;
a second electrode disposed on the transparent resin layer;
a second base material disposed on the second electrode;
an ink including a charged hollow carbon black particle and a solvent accommodated in each of the plurality of accommodating units, and
an average particle size of the charged hollow carbon black particle is 140 nm to 250 nm.