公开(公告)号：US09392670B2

公开(公告)日：2016-07-12

申请号：US13661346

申请日：2012-10-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chul Hee Yoo ,  Young June Jeong ,  Young Sam Park ,  Seong Yeon Han ,  Ho Yeon Kim ,  Hun Joo Hahm ,  Hyung Suk Kim

IPC: F21V9/00 ,  H05B33/12 ,  C09K11/08 ,  C09K11/77 ,  H01L33/50 ,  F21K99/00 ,  G02F1/1335

CPC classification number: H05B33/12 ,  C09K11/0883 ,  C09K11/7731 ,  C09K11/7734 ,  F21K9/00 ,  G02F1/133603 ,  G02F1/133609 ,  H01L33/504 ,  Y02B20/181

Abstract: A white light emitting device including: a blue light emitting diode chip having a dominant wavelength of 443 to 455 nm; a red phosphor disposed around the blue light emitting diode chip, the red phosphor excited by the blue light emitting diode chip to emit red light; and a green phosphor disposed around the blue light emitting diode chip, the green phosphor excited by the blue light emitting diode chip to emit green light, wherein the red light emitted from the red phosphor has a color coordinate falling within a space defined by four coordinate points (0.5448, 0.4544), (0.7079, 0.2920), (0.6427, 0.2905) and (0.4794, 0.4633) based on the CIE 1931 chromaticity diagram, and the green light emitted from the green phosphor has a color coordinate falling within a space defined by four coordinate points (0.1270, 0.8037), (0.4117, 0.5861), (0.4197, 0.5316) and (0.2555, 0.5030) based on the CIE 1931 color chromaticity diagram.

Abstract translation: 一种白光发射装置，包括：主波长为443〜455nm的蓝色发光二极管芯片; 配置在蓝色发光二极管芯片周围的红色荧光体，由蓝色发光二极管芯片激发的红色荧光体发射红色光; 以及蓝色发光二极管芯片周围的绿色荧光体，由蓝色发光二极管芯片激发的绿色荧光体发出绿色光，其中，从红色荧光体发出的红色光线具有落在由四个坐标 基于CIE1931色度图的点（0.5448,0.4544），（0.7079,0.2905），（0.6427,0.2905）和（0.4794,0.44633），并且从绿色荧光体发射的绿光具有落在限定的空间内的色坐标 基于CIE 1931色度色彩图，分别为四点坐标（0.1270,0.8037），（0.4117,0.5861），（0.4197,0.5316）和（0.2555,0.5030）。

公开(公告)号：US10326057B2

公开(公告)日：2019-06-18

申请号：US15863871

申请日：2018-01-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Hyung Kim ,  Chul Hee Yoo ,  Hyun A Kang ,  Jung Woo Lee ,  Jeong Hee Lee ,  Eun Joo Jang

IPC: H01L29/18 ,  H01L33/48 ,  H01L33/50 ,  H01L33/54 ,  H01L33/44 ,  H01L33/56 ,  H01L33/60

Abstract: A light emitting device package includes a package frame in which a recessed portion is defined in a center thereof, the package frame including, an interior wall surrounding the recessed portion, a step portion contacting the interior wall and a bottom surface of the recessed portion, a light source disposed inside the recessed portion and emitting first light, a substrate disposed on the light source, and fixed on an upper surface of the step portion and spaced apart from the light source, a light conversion layer disposed on the substrate and including quantum dots that absorbs the first light and emits second light having a different wavelength from the first light, and barrier layer at least covering the light conversion layer, where barrier layer includes a first inorganic barrier layer and a first organic barrier layer.

公开(公告)号：US09176274B2

公开(公告)日：2015-11-03

申请号：US14066287

申请日：2013-10-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chul Hee Yoo

IPC: F21V7/04 ,  F21V8/00 ,  G09G3/34 ,  G09G3/36 ,  G02F1/1335

CPC classification number: G02B6/0075 ,  G02B6/0021 ,  G02B6/0068 ,  G02B6/0078 ,  G02F2001/133601 ,  G09G3/3426 ,  G09G3/3611 ,  G09G2300/026

Abstract: A backlight unit for a liquid crystal device capable of obtaining a high-quality image and reduced in thinness. The backlight unit is disposed below a liquid crystal panel to irradiate light thereoto. A plurality of separate light guide plates define respective blocks. Groups of LEDs each are disposed along an edge of each of the light guiding plates, each of the LED groups emitting light toward a corresponding one of the light guide plates. The each LED group is turned on and off according to the corresponding block.

Abstract translation: 一种用于能够获得高品质图像并且减薄的液晶装置的背光单元。 背光单元设置在液晶面板的下方以照射其上的光。 多个单独的导光板限定相应的块。 LED组各自沿着每个导光板的边缘设置，每个LED组朝向对应的一个导光板发光。 每个LED组根据相应的模块打开和关闭。

公开(公告)号：US08721126B2

公开(公告)日：2014-05-13

申请号：US13938128

申请日：2013-07-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chul Hee Yoo ,  Ho Sik Ahn

IPC: F21V29/00

CPC classification number: F21V29/70 ,  G02F1/133603 ,  H05K1/0206 ,  H05K1/189 ,  H05K3/0061 ,  H05K3/4069 ,  H05K2201/0209 ,  H05K2201/09072 ,  H05K2201/10106

Abstract: A backlight unit includes a flexible printed circuit board having a least one through hole perforated therein, and an LED package disposed on a top portion of the flexible printed circuit board corresponding to the through hole. The LED package is directly bonded onto a bottom plate by a heat conductive adhesive.

Abstract translation: 背光单元包括柔性印刷电路板，其中具有穿孔的至少一个通孔，以及布置在柔性印刷电路板的与通孔对应的顶部上的LED封装。 LED封装通过导热粘合剂直接粘合到底板上。