公开(公告)号：US11500199B2

公开(公告)日：2022-11-15

申请号：US16710948

申请日：2019-12-11

Applicant: LG Display Co., Ltd.

Inventor： Youngki Song ,  Chiyong Kim

IPC: H01L25/16 ,  H01L25/18 ,  H01L27/14 ,  H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  G02B27/00 ,  G02B5/04 ,  G02B26/08 ,  G09F9/30 ,  G09F9/33 ,  G02F1/133 ,  G06F3/041 ,  G06F3/044 ,  G02F1/1335 ,  G02F1/1333 ,  H01L27/146

Abstract: A light path control device and an electronic device including the light path control device, which reduce color shift at a side viewing angle, are provided. The light path control device can include a light path control layer including first, second and third light control layers, and a transparent base member coupled to the first light control layer or the third light control layer. The third light control layer can have a refractive index which is lower than a refractive index of the second light control layer. The light path control layer can include a first refractive surface disposed between the first light control layer and the third light control layer, and a second refractive surface and a third refractive surface disposed between the second light control layer and the third light control layer.

公开(公告)号：US12153296B2

公开(公告)日：2024-11-26

申请号：US17977693

申请日：2022-10-31

Applicant: LG Display Co., Ltd.

Inventor： Sanghyun Lee ,  Minsoo Park ,  Chiyong Kim

IPC: G02F1/13 ,  G02F1/1343

Abstract: A viewing angle control film and a display device comprising the same are discussed. The viewing angle control film can include a first electrode, a second electrode facing away from the first electrode, a light conversion layer disposed between the first electrode and the second electrode, and a controller configured to adjust a viewing angle of the light conversion layer by controlling a voltage applied between the first electrode and the second electrode. The light conversion layer can include a plurality of partition walls disposed to be spaced apart between the first electrode and the second electrode, a plurality of containing portions disposed between the partition walls and arranged at regular intervals along the first electrode, and light blocking particles provided in each of the plurality of containing portions. The controller applies a pulse voltage in a share mode that operates in a wide viewing angle.