公开(公告)号：US20130258211A1

公开(公告)日：2013-10-03

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: H05B33/12

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：US20180198031A1

公开(公告)日：2018-07-12

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: H01L33/48 ,  H01L33/50 ,  H01L33/54 ,  H01L33/56

CPC classification number: H01L33/486 ,  H01L33/44 ,  H01L33/502 ,  H01L33/505 ,  H01L33/507 ,  H01L33/54 ,  H01L33/56 ,  H01L33/60 ,  H01L2933/0025 ,  H01L2933/0041 ,  H01L2933/005

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：US20140049729A1

公开(公告)日：2014-02-20

申请号：US14066287

申请日：2013-10-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chul Hee YOO

IPC: F21V8/00

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：US20130301276A1

公开(公告)日：2013-11-14

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 of the invention is reduced in thickness, weight and manufacturing costs but improved in heat releasing efficiency. In the backlight unit, a flexible printed circuit board has at least one through hole perforated therein. An LED package is disposed on a top portion of the flexible printed circuit board corresponding to the through hole. The backlight unit of the invention employs the flexible printed circuit board in place of a metal printed circuit board as a means to conduct current to the LED package. This produces a slimmer and lighter backlight unit and also saves manufacturing costs. In addition, the LED package is directly bonded onto a bottom plate by a heat conducting adhesive, thereby ensuring heat generated from the LED package to be released more quickly.

Abstract translation: 本发明的背光单元的厚度，重量和制造成本降低，但散热效率提高。 在背光单元中，柔性印刷电路板具有穿孔的至少一个通孔。 LED封装设置在与通孔对应的柔性印刷电路板的顶部上。 本发明的背光单元采用柔性印刷电路板代替金属印刷电路板作为将电流传导到LED封装的手段。 这产生了更薄和更轻的背光单元，并且还节省制造成本。 此外，LED封装通过导热粘合剂直接接合到底板上，从而确保从LED封装产生的热量更快地释放。