公开(公告)号：US20210026056A1

公开(公告)日：2021-01-28

申请号：US16968099

申请日：2018-07-05

Applicant: LG ELECTRONICS INC.

Inventor： Kwanwoo PARK ,  Kisuk WOO ,  Seokhoon KANG ,  Jeongin CHEON

IPC: F21V8/00

Abstract: Discussed is a lamp or a lighting device including a substrate; a plurality of semiconductor light-emitting devices; a light guide layer provided with an incident light surface on which light emitted from the plurality of semiconductor light-emitting devices is incident and a light exit surface from which the light is emitted; a first reflective layer disposed on one surface of the light guide layer facing towards the light exit surface to reflect the light; and a second reflective layer disposed on another surface different from the one surface of the light guide layer on which the first reflective layer is disposed, wherein the first reflective layer is disposed on the same surface as the incident light surface, and wherein the second reflective layer is disposed obliquely to the incident light surface to allow light incident on the incident light surface to travel along the light guide layer

公开(公告)号：US20220343812A1

公开(公告)日：2022-10-27

申请号：US17763873

申请日：2019-10-01

Applicant: LG ELECTRONICS INC.

Inventor： Kisuk WOO ,  Sunghwan LEE ,  Kwanwoo PARK

IPC: G09F11/02 ,  G09F9/33

Abstract: The present disclosure can be applied to display device-related technical fields and relates to a rotatable display device using, for example, light-emitting diodes (LEDs), which are semiconductor light-emitting diodes. According to the present disclosure, the rotatable display device using light-emitting diodes may comprise: a fixing unit comprising a motor; a rotation unit which is provided on the fixing unit and has a first side coupled to the motor and a second side rotatably coupled to a rotation coupling part, and rotates, the second side being a side opposite to the first side; and a light source module provided in the rotation unit and comprising at least one panel provided along a virtual cylindrical outer circumferential surface thereof and a light-emitting diode array in which individual pixels are provided on each panel in the longitudinal direction.