公开(公告)号：US20190391314A1

公开(公告)日：2019-12-26

申请号：US16373999

申请日：2019-04-03

Applicant: Samsung Display Co., Ltd.

Inventor： Do Hun KIM ,  Ji Eun NAM ,  Young Min PARK ,  You Jin SEO ,  Hyeon Mi LEE ,  Hyeon Seon JEONG ,  Taek Sun SHIN ,  Seong Yong HWANG

IPC: F21V8/00

Abstract: An optical member includes a light guide plate, a wavelength conversion layer, and a reflective tape. The wavelength conversion layer is disposed on an upper surface of the light guide plate. The reflective tape includes a first side portion covering first side surfaces of the light guide plate and the wavelength conversion layer. The reflective tape includes a first surface and a second surface. The first surface is configured to reflect light of a first wavelength band and light of a second wavelength band different from the first wavelength band. The second surface is configured to absorb the light of the first wavelength band.

公开(公告)号：US20210255380A1

公开(公告)日：2021-08-19

申请号：US17109117

申请日：2020-12-01

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Hyang KIM ,  Hyun Jeong KIM ,  Ji Eun NAM ,  Young Keun LEE ,  Hyeon Mi LEE

IPC: F21V8/00

Abstract: A backlight unit for a display device includes: a light guide including a light incident surface; a substrate facing the light incident surface; a plurality of light sources on one surface of the substrate facing the light incident surface; and a first member disposed between the substrate and the light incident surface to space the light sources apart from the light guide. The first member includes: a support on one surface of the substrate that do not include the light source, the support having a first surface facing the light incident surface and a second surface facing the light sources; and a first layer disposed on the first surface and the second surface of the support to improve luminance uniformity across the light incident surface.