US 12,444,351 B2
Light path control member which switch between a share mode and a privacy mode, and display device including same
Sanghyun Lee, Paju-si (KR); Hyukjoon Yoon, Paju-si (KR); Yongseok Lee, Paju-si (KR); and Minsoo Park, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Oct. 30, 2023, as Appl. No. 18/497,507.
Claims priority of application No. 10-2022-0159118 (KR), filed on Nov. 24, 2022.
Prior Publication US 2024/0177658 A1, May 30, 2024
Int. Cl. G09G 3/3225 (2016.01); G02F 1/29 (2006.01); G09G 3/36 (2006.01)
CPC G09G 3/3225 (2013.01) [G02F 1/29 (2013.01); G09G 3/36 (2013.01); G09G 2300/0408 (2013.01); G09G 2300/0426 (2013.01); G09G 2320/028 (2013.01); G09G 2320/0626 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A light path control member, comprising:
a first substrate;
a first electrode disposed on the first substrate;
a first light conversion unit disposed on the first electrode;
a second substrate disposed on the first light conversion unit;
a second electrode including a first sub-electrode that is disposed between the second substrate and the first light conversion unit and extends along a first direction, and a second sub-electrode that extends along a second direction crossing the first direction; and
a light absorbing member disposed on an upper surface of the second substrate, and
wherein the first sub-electrode intersects the second sub-electrode,
wherein the first light conversion unit includes a light transmission part and a light path variable part adjacent to the light transmission part,
wherein the light path variable part includes a dispersion solution and light absorbing particles positioned in the dispersion solution, and
wherein the light path variable part includes a first light path variable part extending in the first direction and a second light path variable part extending in the second direction, wherein the first light path variable part overlaps the first sub-electrode, and the second light path variable part overlaps the second sub-electrode, wherein the light absorbing member includes a third sub-electrode extending along the first direction and a fourth sub-electrode extending along the second direction, and the third sub-electrode overlaps the first light path variable part, and the fourth sub-electrode overlaps the second light path variable part.