US 12,443,086 B2
Light route control member and display device comprising same
Mun Yeong Son, Seoul (KR); Byung Sook Kim, Seoul (KR); Jin Gyeong Park, Seoul (KR); and Jong Sik Lee, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 17/753,966
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Sep. 3, 2020, PCT No. PCT/KR2020/011848
§ 371(c)(1), (2) Date Mar. 18, 2022,
PCT Pub. No. WO2021/054656, PCT Pub. Date Mar. 25, 2021.
Claims priority of application No. 10-2019-0114929 (KR), filed on Sep. 18, 2019; and application No. 10-2019-0125374 (KR), filed on Oct. 10, 2019.
Prior Publication US 2022/0342273 A1, Oct. 27, 2022
Int. Cl. G02F 1/167 (2019.01); G02F 1/13 (2006.01); G02F 1/1335 (2006.01); G02F 1/1675 (2019.01); G02F 1/1685 (2019.01); H10K 59/80 (2023.01)
CPC G02F 1/167 (2013.01) [G02F 1/1323 (2013.01); G02F 1/133512 (2013.01); G02F 1/133524 (2013.01); G02F 1/1685 (2019.01); G02F 2001/1678 (2013.01); H10K 59/877 (2023.02)] 13 Claims
OG exemplary drawing
 
1. A light route control member comprising:
a first substrate;
a first electrode disposed on the first substrate;
a second substrate disposed on the first substrate;
a second electrode disposed under the second substrate; and
a light conversion unit disposed between the first electrode and the second electrode,
wherein the light conversion unit includes a partition wall unit and a receiving unit alternately disposed,
wherein the receiving unit changes light transmittance according to application of a voltage,
wherein the receiving unit includes a dispersion and a plurality of light conversion particles dispersed in the dispersion,
wherein the light conversion particle includes a core and a shell disposed on the outer surface of the core,
wherein at least one light conversion particle of the plurality of light conversion particles includes a void disposed between the core and the shell,
wherein a specific gravity of the light conversion particles is 0.6 to 1.5, and
wherein the light conversion particles include first particles and second particles having different specific gravities.