公开(公告)号：US11493679B2

公开(公告)日：2022-11-08

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.

公开(公告)号：US10732343B2

公开(公告)日：2020-08-04

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: G02B6/00 ,  F21V8/00 ,  H01L33/50

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.