公开(公告)号：US08598618B2

公开(公告)日：2013-12-03

申请号：US12988330

申请日：2009-04-15

申请人： Tsutomu Ishii ,  Hajime Takeuchi ,  Ryo Sakai ,  Yasumasa Ooya ,  Yasuhiro Shirakawa

发明人： Tsutomu Ishii ,  Hajime Takeuchi ,  Ryo Sakai ,  Yasumasa Ooya ,  Yasuhiro Shirakawa

IPC分类号： H01L33/00

CPC分类号： H05B33/14 ,  C09K11/7734 ,  F21K9/00 ,  H01L33/502 ,  H01L33/507 ,  H01L33/62 ,  H01L2924/0002 ,  Y02B20/181 ,  H01L2924/00

摘要： A white light emitting device includes a blue light emitting diode chip that emits blue light in a specific wavelength band, a first resin layer that seals the blue light emitting diode chip and includes a cured product of silicone resin, and a second resin layer that covers the first resin layer and includes phosphor powder, which absorbs the blue light and emits light in a specific wavelength band, and a cured product of transparent resin. The phosphor powder has a composition represented by the following Formula (1): (Sr1-x-yBaxEuy)2SiO4  (1) (in Formula (1), x and y satisfy a condition that 0.05

摘要翻译： 白色发光装置包括发射特定波长带的蓝色光的蓝色发光二极管芯片，密封蓝色发光二极管芯片并包含硅树脂固化物的第一树脂层和覆盖 第一树脂层并且包括吸收蓝色光并发射特定波长带的光的荧光体粉末和透明树脂的固化产物。 荧光体粉末具有下述式（1）表示的组成：（Sr1-x-yBaxEuy）2SiO4（1）（式（1）中，x和y满足0.05

公开(公告)号：US08541798B2

公开(公告)日：2013-09-24

申请号：US12442335

申请日：2007-09-27

申请人： Yasumasa Ooya ,  Ryo Sakai ,  Hajime Takeuchi ,  Tsutomu Ishii ,  Yasuhiro Shirakawa

发明人： Yasumasa Ooya ,  Ryo Sakai ,  Hajime Takeuchi ,  Tsutomu Ishii ,  Yasuhiro Shirakawa

IPC分类号： H01L33/00

CPC分类号： H01L33/52 ,  G02F1/133603 ,  G02F1/133609 ,  G02F2001/133614 ,  H01L33/507 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2924/181 ,  H01L2924/00012 ,  H01L2924/00014 ,  H01L2924/00

摘要： The present invention provides a semiconductor light emitting device comprising a light intensity difference reducing layer provided between an ultraviolet semiconductor light emitting element and a wavelength converting material layer, and a backlight and a display device comprising the semiconductor light emitting device. The semiconductor light emitting device is an LED light emitting device which has improved uniformity of emitted light and reduced non-uniformity of brightness and chromaticity of emitted light. The light emitting device according to the present invention is particularly suitable for use in various display devices, preferably, for example, in display devices in equipment where a reduction in size, a reduction in weight, a reduction in thickness, electric power saving, high brightness, and excellent color rendering properties are particularly required, for example, cellular phones, personal digital assistants, electronic dictionaries, digital cameras, computers, liquid crystal televisions (TVs), and peripheral devices of these devices.

摘要翻译： 本发明提供一种包括设置在紫外线半导体发光元件和波长转换材料层之间的光强度差减小层的半导体发光器件，以及包括半导体发光器件的背光源和显示器件。 半导体发光器件是具有改善的发射光均匀性和降低发光的亮度和色度的不均匀性的LED发光器件。 根据本发明的发光装置特别适用于各种显示装置，优选例如在减小尺寸，减轻重量，减小厚度，省电，高功率的设备中的显示装置中 特别需要手机，个人数字助理，电子词典，数码相机，计算机，液晶电视（TV）以及这些装置的外围设备，因此特别需要亮度和显色性。

公开(公告)号：US20100322275A1

公开(公告)日：2010-12-23

申请号：US12526367

申请日：2008-02-07

申请人： Tsutomu Ishii ,  Yasuhiro Shirakawa ,  Ryo Sakai ,  Yasumasa Ooya ,  Hajime Takeuchi

发明人： Tsutomu Ishii ,  Yasuhiro Shirakawa ,  Ryo Sakai ,  Yasumasa Ooya ,  Hajime Takeuchi

IPC分类号： H01S5/00 ,  H01L33/50 ,  H01L33/48 ,  H01L33/44

CPC分类号： C09K11/7734 ,  C09K11/7739 ,  C09K11/7789 ,  H01L33/504 ,  H01L2224/48091 ,  H01L2224/73265 ,  Y02B20/181 ,  H01L2924/00014

摘要： A white light-emitting lamp (1) includes a light-emitting portion (9) which is excited by light emitted from a semiconductor light-emitting element (2) to emit white light. The light-emitting portion (9) contains a blue phosphor, a yellow phosphor and a red phosphor. The yellow phosphor is composed of a europium and manganese-activated alkaline earth silicate phosphor having a composition expressed by (Sr1-x-y-z-u, Bax, Mgy, Euz, Mnu)2SiO4 (0.1≦x≦0.35, 0.025≦y≦0.105, 0.025≦z≦0.25, 0.0005≦u≦0.02).

摘要翻译： 白色发光灯（1）包括由半导体发光元件（2）发射的光激发而发出白光的发光部（9）。 发光部（9）含有蓝色荧光体，黄色荧光体和红色荧光体。 黄色荧光体由具有由（Sr1-xyzu，Bax，Mgy，Euz，Mnu）2SiO4（0.1＆nlE; xu和nlE; 0.35,0.025＆amp; nlE; y＆nlE; 0.105）表示的组成的铕和锰活化的碱土金属硅酸盐荧光体组成， 0.025＆nlE; z＆nlE; 0.25,0.0005＆nlE; u＆nlE; 0.02）。

公开(公告)号：US20090166652A1

公开(公告)日：2009-07-02

申请号：US11912635

申请日：2006-04-25

申请人： Ryo Sakai ,  Yasuhiro Shirakawa ,  Hajime Takeuchi ,  Tsutomu Ishii ,  Yasumasa Ooya

发明人： Ryo Sakai ,  Yasuhiro Shirakawa ,  Hajime Takeuchi ,  Tsutomu Ishii ,  Yasumasa Ooya

IPC分类号： H01L33/00

CPC分类号： G02F1/133603 ,  C09K11/7734 ,  C09K11/7739 ,  C09K11/778 ,  C09K11/7789 ,  H01L33/502 ,  H01L33/504 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/73265 ,  H01L2224/8592 ,  H01L2924/181 ,  H01L2924/00012 ,  H01L2924/00014

摘要： Disclosed are a white LED, which has color reproducibility comparable with that of a cold-cathode tube and improved brightness, and a backlight and a liquid crystal display device comprising the white LED. The white LED comprises at least one light emitting element selected from ultraviolet light emitting diodes, purple light emitting diodes, ultraviolet light emitting lasers, and purple light emitting lasers, and a phosphor layer. The phosphor layer comprises a green phosphor satisfying formula 1, a blue phosphor satisfying formula 2 or 3, and a red phosphor satisfying formula 4 or 5: a trivalent cerium- and terbium-activated rare earth boride phosphor represented by formula 1: M1-x-yCexTbyBO3 wherein M represents at least one element selected from Sc (scandium), Y (yttrium), La (lanthanum), Gd (gadolinium), and Lu (lutetium); and x and y are respective numbers of 0.03

摘要翻译： 公开了一种白色LED，其具有与冷阴极管相当的色彩再现性和改善的亮度，以及背光源和包括白色LED的液晶显示装置。 白色LED包括至少一种选自紫外发光二极管，紫色发光二极管，紫外光发射激光器和紫色发光激光器的发光元件和荧光体层。 磷光体层包括满足式1的绿色荧光体，满足式2或3的蓝色荧光体和满足式4或5的红色荧光体：由式1表示的三价铈和铽激活的稀土硼化物荧光体：M1-x -YCexTBB3其中M表示选自Sc（钪），Y（钇），La（镧），Gd（钆）和Lu（镥）中的至少一种元素。 x和y分别为0.03

公开(公告)号：US20090115936A1

公开(公告)日：2009-05-07

申请号：US11994661

申请日：2006-07-04

申请人： Hajime Takeuchi ,  Ryo Sakai ,  Yasumasa Ooya ,  Tsutomu Ishii ,  Yasuhiro Shirakawa ,  Yukihiro Takenami

发明人： Hajime Takeuchi ,  Ryo Sakai ,  Yasumasa Ooya ,  Tsutomu Ishii ,  Yasuhiro Shirakawa ,  Yukihiro Takenami

IPC分类号： G02F1/13357 ,  G09F13/08

CPC分类号： G02F1/133606 ,  G02F1/133603 ,  G02F1/133611

摘要： A backlight unit 1 includes a plurality of light emitting devices 2 constituted with, for example, LED lamps, and an optical sheet 4 disposed on light emission surface 2b sides of the light emitting devices 2. The light emission surface sides of the plural light emitting devices are joined to the optical sheet 4 via joining layers 5. The backlight unit 1 satisfies a condition of n1≦n2≦n3, where n1 is a refractive index of the optical sheet 4, n2 is a refractive index of the joining layer 5, and n3 is a refractive index of the light emitting device 2.

摘要翻译： 背光单元1包括由例如LED灯构成的多个发光装置2和配置在发光装置2的发光面2b侧的光学片4.多个发光的发光面侧 器件通过接合层5接合到光学片4.背光单元1满足n1 <= n2 <= n3的条件，其中n1是光学片4的折射率，n2是接合层的折射率 5，n3是发光装置2的折射率。

公开(公告)号：US09169436B2

公开(公告)日：2015-10-27

申请号：US13470588

申请日：2012-05-14

申请人： Tsutomu Ishii ,  Yoshitaka Funayama ,  Yumi Ito ,  Yasumasa Ooya ,  Ryo Sakai ,  Katsutoshi Nakagawa ,  Hajime Takeuchi ,  Yasuhiro Shirakawa

发明人： Tsutomu Ishii ,  Yoshitaka Funayama ,  Yumi Ito ,  Yasumasa Ooya ,  Ryo Sakai ,  Katsutoshi Nakagawa ,  Hajime Takeuchi ,  Yasuhiro Shirakawa

IPC分类号： H01L51/52 ,  C09K11/08 ,  C09K11/77 ,  H01L33/50

CPC分类号： H01L33/502 ,  C09K11/0883 ,  C09K11/7734 ,  C09K11/7738 ,  C09K11/7789

摘要： An LED light emitting device is provided that has high color rendering properties and is excellent color uniformity and, at the same time, can realize even luminescence unattainable by conventional techniques. A phosphor having a composition represented by formula: (Sr2-X-Y-Z-ωBaXMgYMnZEuω)SiO4 wherein x, y, z, and ω are respectively coefficients satisfying 0.1 z, and 0.01

摘要翻译： 提供具有高显色性能和优异的色彩均匀性的LED发光装置，同时可以实现通过常规技术无法实现的均匀发光。 具有由式（Sr2-XYZ-ωBaXMgYMnZEuω）SiO4表示的组成的荧光体，其中x，y，z和ω分别为满足0.1 z，并且提供0.01 <ω<0.2。 荧光体与具有360〜470nm的发光峰值波长的紫外线和蓝色发光二极管结合使用，形成LED发光装置。

公开(公告)号：US09039218B2

公开(公告)日：2015-05-26

申请号：US13619500

申请日：2012-09-14

申请人： Tsutomu Ishii ,  Hajime Takeuchi ,  Yasumasa Ooya ,  Katsutoshi Nakagawa ,  Yumi Ito ,  Masaki Toyoshima ,  Yasuhiro Shirakawa ,  Ryo Sakai

发明人： Tsutomu Ishii ,  Hajime Takeuchi ,  Yasumasa Ooya ,  Katsutoshi Nakagawa ,  Yumi Ito ,  Masaki Toyoshima ,  Yasuhiro Shirakawa ,  Ryo Sakai

IPC分类号： H01L33/50 ,  H01L33/32 ,  C09K11/58 ,  C09K11/64 ,  C09K11/77 ,  H01L33/60 ,  H05B33/14 ,  H05B33/20 ,  H01L33/40 ,  H01L33/54 ,  H01L33/64 ,  H01L33/44

CPC分类号： H01L33/32 ,  C09K11/584 ,  C09K11/642 ,  C09K11/7734 ,  C09K11/7739 ,  C09K11/7741 ,  C09K11/7789 ,  H01L33/405 ,  H01L33/44 ,  H01L33/504 ,  H01L33/505 ,  H01L33/507 ,  H01L33/54 ,  H01L33/60 ,  H01L33/642 ,  H01L2224/48091 ,  H01L2224/48465 ,  H05B33/14 ,  H05B33/20 ,  Y02B20/181 ,  H01L2924/00014 ,  H01L2924/00

摘要： A white LED lamp including: a conductive portion; a light emitting diode chip mounted on the conductive portion, for emitting a primary light having a peak wavelength of 360 nm to 420 nm; a transparent resin layer including a first hardened transparent resin, for sealing the light emitting diode chip; and a phosphor layer covering the transparent resin layer, the phosphor layer being formed by dispersing a phosphor powder into a second hardened transparent resin, and the phosphor powder receiving the primary light and radiating a secondary light having a wavelength longer than that of the primary light. An energy of the primary light contained in the radiated secondary light is 0.4 mW/Im or less.

摘要翻译： 一种白色LED灯，包括：导电部分; 安装在导电部分上的发光二极管芯片，用于发射峰值波长为360nm至420nm的初级光; 透明树脂层，包括第一硬化透明树脂，用于密封发光二极管芯片; 以及覆盖透明树脂层的荧光体层，荧光体层通过将荧光体粉末分散在第二硬化透明树脂中而形成，并且荧光体粉末接收初级光并且发射波长比初级光的波长更长的二次光 。 被照射的二次光中包含的一次光的能量为0.4mW / Im以下。

公开(公告)号：US08632202B2

公开(公告)日：2014-01-21

申请号：US13229040

申请日：2011-09-09

申请人： Hajime Takeuchi ,  Ryo Sakai ,  Tsutomu Ishii ,  Yasumasa Ooya ,  Yasuhiro Shirakawa

发明人： Hajime Takeuchi ,  Ryo Sakai ,  Tsutomu Ishii ,  Yasumasa Ooya ,  Yasuhiro Shirakawa

IPC分类号： G09F13/08

CPC分类号： H01L33/504 ,  C09K11/7734 ,  C09K11/7739 ,  C09K11/7789 ,  G02F1/133603 ,  G02F2001/133624

摘要： In a embodiment, a white LED for a backlight of a liquid crystal display device conforming to the EBU standard includes an ultraviolet (purple) light-emitting element, and a phosphor layer which contains 1 to 10 wt % of a green phosphor including a divalent europium-activated silicate phosphor, 40 to 80 wt % of a blue phosphor including at least one selected from a divalent europium-activated halo-phosphate phosphor and a divalent europium-activated aluminate phosphor, and 10 to 50 wt % of a red phosphor including at least one selected from a europium-activated lanthanum oxysulfide phosphor and a europium-activated yttrium oxysulfide phosphor.

摘要翻译： 在一个实施例中，用于符合EBU标准的液晶显示装置的背光源的白色LED包括紫外（紫色）发光元件和含有1-10重量％的包含二价 铕活化硅酸盐荧光体，40〜80重量％的包含选自二价铕活化的卤代磷酸盐荧光体和二价铕活化的铝酸盐荧光体中的至少一种的蓝色荧光体和10〜50重量％的红色荧光体，其包含 至少一种选自铕激活的氧化硫镧荧光体和铕活化的硫氧化钇氧硫化物荧光体。

公开(公告)号：US08471283B2

公开(公告)日：2013-06-25

申请号：US12919287

申请日：2009-02-19

申请人： Tsutomu Ishii ,  Hajime Takeuchi ,  Yasumasa Ooya ,  Katsutoshi Nakagawa ,  Yumi Ito ,  Masaki Toyoshima ,  Yasuhiro Shirakawa ,  Ryo Sakai

发明人： Tsutomu Ishii ,  Hajime Takeuchi ,  Yasumasa Ooya ,  Katsutoshi Nakagawa ,  Yumi Ito ,  Masaki Toyoshima ,  Yasuhiro Shirakawa ,  Ryo Sakai

IPC分类号： H01L33/50

CPC分类号： H01L33/32 ,  C09K11/584 ,  C09K11/642 ,  C09K11/7734 ,  C09K11/7739 ,  C09K11/7741 ,  C09K11/7789 ,  H01L33/405 ,  H01L33/44 ,  H01L33/504 ,  H01L33/505 ,  H01L33/507 ,  H01L33/54 ,  H01L33/60 ,  H01L33/642 ,  H01L2224/48091 ,  H01L2224/48465 ,  H05B33/14 ,  H05B33/20 ,  Y02B20/181 ,  H01L2924/00014 ,  H01L2924/00

摘要： A white LED lamp including: a conductive portion; a light emitting diode chip mounted on the conductive portion, for emitting a primary light having a peak wavelength of 360 nm to 420 nm; a transparent resin layer including a first hardened transparent resin, for sealing the light emitting diode chip; and a phosphor layer covering the transparent resin layer, the phosphor layer being formed by dispersing a phosphor powder into a second hardened transparent resin, and the phosphor powder receiving the primary light and radiating a secondary light having a wavelength longer than that of the primary light. An energy of the primary light contained in the radiated secondary light is 0.4 mW/lm or less. In the white LED lamp, a backlight, and an illumination device using the white LED lamp an amount of UV light to be contained in the released light and an amount of heat to be generated from the lamp are decreased to be small.

摘要翻译： 一种白色LED灯，包括：导电部分; 安装在导电部分上的发光二极管芯片，用于发射峰值波长为360nm至420nm的初级光; 透明树脂层，包括第一硬化透明树脂，用于密封发光二极管芯片; 以及覆盖透明树脂层的荧光体层，荧光体层通过将荧光体粉末分散在第二硬化透明树脂中而形成，并且荧光体粉末接收初级光并且发射波长比初级光的波长更长的二次光 。 辐射二次光中包含的初级光的能量为0.4mW / lm以下。 在白色LED灯，背光源和使用白色LED灯的照明装置中，放出的光中包含的紫外线的量和从灯产生的热量的量减小。

公开(公告)号：US07961762B2

公开(公告)日：2011-06-14

申请号：US12526367

申请日：2008-02-07

申请人： Tsutomu Ishii ,  Yasuhiro Shirakawa ,  Ryo Sakai ,  Yasumasa Ooya ,  Hajime Takeuchi

发明人： Tsutomu Ishii ,  Yasuhiro Shirakawa ,  Ryo Sakai ,  Yasumasa Ooya ,  Hajime Takeuchi

IPC分类号： H01S3/30 ,  H01S3/10 ,  H01S3/16

CPC分类号： C09K11/7734 ,  C09K11/7739 ,  C09K11/7789 ,  H01L33/504 ,  H01L2224/48091 ,  H01L2224/73265 ,  Y02B20/181 ,  H01L2924/00014

摘要： A white light-emitting lamp (1) includes a light-emitting portion (9) which is excited by light emitted from a semiconductor light-emitting element (2) to emit white light. The light-emitting portion (9) contains a blue phosphor, a yellow phosphor and a red phosphor. The yellow phosphor is composed of a europium and manganese-activated alkaline earth silicate phosphor having a composition expressed by (Sr1-x-y-z-u, Bax, Mgy, Euz, Mnu)2SiO4 (0.1≦x≦0.35, 0.025≦y≦0.105, 0.025≦z≦0.25, 0.0005≦u≦0.02).

摘要翻译： 白色发光灯（1）包括由半导体发光元件（2）发射的光激发而发出白光的发光部（9）。 发光部（9）含有蓝色荧光体，黄色荧光体和红色荧光体。 黄色荧光体由具有由（Sr1-xyzu，Bax，Mgy，Euz，Mnu）2SiO4（0.1＆nlE; xu和nlE; 0.35,0.025＆amp; nlE; y＆nlE; 0.105）表示的组成的铕和锰活化的碱土金属硅酸盐荧光体组成， 0.025＆nlE; z＆nlE; 0.25,0.0005＆nlE; u＆nlE; 0.02）。