公开(公告)号：US20220291564A1

公开(公告)日：2022-09-15

申请号：US17754139

申请日：2020-09-11

Applicant: LG INNOTEK CO., LTD.

Inventor： Young Ju HAN ,  In Hae LEE ,  Byung Sook KIM

IPC: G02F1/167 ,  G02F1/1685 ,  G02F1/1679 ,  G02F1/1676

Abstract: A light path control member according to an embodiment comprises: a first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed below the second substrate; a light conversion unit disposed between the first electrode and the second electrode; and a power supply unit connected to the first electrode and the second electrode, wherein the light conversion unit includes a partition wall part and a receiving part that are alternately arranged, the receiving part has a light transmittance that changes in response to the application of a voltage, the receiving part includes a dispersion liquid and a plurality of light absorbing particles dispersed in the dispersion liquid, the height of the receiving part is 15 μm to 25 μm, the width of the receiving part is 1.5 μm to 2.5 μm, and the power supply unit includes a power connection part connecting an external power source and the light conversion unit, and a power switch part for turning on/off the transmission of the voltage.