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    White LED, backlight using the same, and liquid crystal display device
    1.
    发明授权
    White LED, backlight using the same, and liquid crystal display device 有权
    白色LED，背光使用相同，以及液晶显示装置

    公开(公告)号：US08896004B2

    公开(公告)日：2014-11-25

    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 ,  C09K11/77 ,  G02F1/1335 ,  H01L33/50

    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

    WHITE LED, BACKLIGHT USING THE SAME, AND LIQUID CRYSTAL DISPLAY DEVICE
    3.
    发明申请
    WHITE LED, BACKLIGHT USING THE SAME, AND LIQUID CRYSTAL DISPLAY DEVICE 有权
    白色LED，使用其的背光和液晶显示装置

    公开(公告)号：US20120206671A1

    公开(公告)日：2012-08-16

    申请号：US13407942

    申请日：2012-02-29

    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： G02F1/13357

    CPC分类号： G02F1/133603 ,  C09K11/7734 ,  C09K11/7739 ,  C09K11/778 ,  C09K11/7789 ,  H01J1/63 ,  H01L33/504 ,  H01L33/60 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/8592 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/00012

    摘要： Certain embodiments provide a white LED for a backlight of a liquid crystal display device, which comprises an ultraviolet (or violet) light emitting element and a phosphor layer that contains a green phosphor selected from trivalent cerium- and terbium-activated rare earth borate phosphors, a blue phosphor selected from divalent europium-activated halophosphate phosphors and divalent europium-activated aluminate phosphors, and a red phosphor selected from europium-activated lanthanum oxysulfide phosphors and europium-activated yttrium oxysulfide phosphors as the contained amounts of the respective phosphors relative to the total amount of the phosphors as follows: 35-50% by weight of the green phosphor content; 50-70% by weight of the blue phosphor content; and 1-10% by weight of the red phosphor content.

    摘要翻译： 某些实施例提供一种用于液晶显示装置的背光源的白色LED，其包括紫外线（或紫色）发光元件和含有选自三价铈和铽激活的稀土硼酸盐荧光体的绿色荧光体的荧光体层， 选自二价铕活化卤磷酸盐荧光体和二价铕活化铝酸盐荧光体的蓝色荧光体和选自铕激活的氧化硫镧氧化物荧光体和铕激活的氧化硫化钇荧光体中的红色荧光体作为各荧光体的含量相对于总量 荧光体的量如下：绿色荧光体含量的35-50重量％ 50-70％重量的蓝色荧光粉含量; 和1-10重量％的红色磷光体含量。

    Semiconductor light emitting device, and backlight and display device comprising the semiconductor light emitting device
    9.
    发明授权
    Semiconductor light emitting device, and backlight and display device comprising the semiconductor light emitting device 有权
    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

    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。