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    • 4. 发明授权
    • Light emitting diode having distributed Bragg reflector
    • 具有分布式布拉格反射器的发光二极管
    • US08373188B2
    • 2013-02-12
    • US13100879
    • 2011-05-04
    • Duk Il SuhJae Moo KimKyoung Wan KimYeo Jin YoonYe Seul KimSang Hyun OhJin Woong Lee
    • Duk Il SuhJae Moo KimKyoung Wan KimYeo Jin YoonYe Seul KimSang Hyun OhJin Woong Lee
    • H01L33/00
    • H01L33/46H01L33/10H01L33/38H01L33/42H01L33/50H01L2224/48091H01L2224/48247H01L2224/48257H01L2224/73265H01L2924/181H01L2924/00012H01L2924/00014
    • Exemplary embodiments of the present invention provide light-emitting diodes having a distributed Bragg reflector. A light-emitting diode (LED) according to an exemplary embodiment includes a light-emitting structure arranged on a first surface of a substrate, the light-emitting structure including a first conductivity-type semiconductor layer, a second conductivity-type semiconductor layer, and an active layer interposed between the first conductivity-type semiconductor layer and the second conductivity-type semiconductor layer. A first distributed Bragg reflector is arranged on a second surface of the substrate opposite to the first surface, the first distributed Bragg reflector to reflect light emitted from the light-emitting structure. The first distributed Bragg reflector has a reflectivity of at least 90% with respect to light of a first wavelength in a blue wavelength range, light of a second wavelength in a green wavelength range, and light of a third wavelength in a red wavelength range. The first distributed Bragg reflector has a laminate structure having an alternately stacked SiO2 layer and Nb2O5 layer.
    • 本发明的示例性实施例提供了具有分布式布拉格反射器的发光二极管。 根据示例性实施例的发光二极管(LED)包括布置在基板的第一表面上的发光结构,所述发光结构包括第一导电类型半导体层,第二导电类型半导体层, 以及插入在第一导电型半导体层和第二导电型半导体层之间的有源层。 第一分布式布拉格反射器布置在基板的与第一表面相对的第二表面上,第一分布布拉格反射器用于反射从发光结构发射的光。 第一分布布拉格反射器相对于蓝色波长范围内的第一波长的光,绿色波长范围内的第二波长的光和红色波长范围内的第三波长的光具有至少90%的反射率。 第一分布布拉格反射器具有层叠结构,其具有交替层叠的SiO 2层和Nb 2 O 5层。
    • 7. 发明授权
    • Light emitting diode having electrode extensions
    • 具有电极延伸的发光二极管
    • US08525212B2
    • 2013-09-03
    • US12962365
    • 2010-12-07
    • Kyoung Wan KimYe Seul KimJeong Hee YangJae Moo Kim
    • Kyoung Wan KimYe Seul KimJeong Hee YangJae Moo Kim
    • H01L33/38
    • H01L33/38H01L33/20H01L33/42
    • An exemplary embodiment of the present invention discloses a light emitting diode including a lower contact layer having a first edge, a second edge opposite to the first edge, a third edge connecting the first edge to the second edge, and a fourth edge opposite to the third edge, a mesa structure arranged on the lower contact layer, the mesa structure including an active layer and an upper contact layer, a first electrode pad arranged on the lower contact layer, a second electrode pad arranged on the mesa structure, a first lower extension and a second lower extension extending from the first electrode pad towards the second edge, distal ends of the first lower extension and the second lower extension being farther away from each other than front ends thereof contacting the first electrode pad, and a first upper extension, a second upper extension, and a third upper extension extending from the second electrode pad. In addition, the first upper extension and the second upper extension extend from the second electrode pad to enclose the first lower extension and the second lower extension, and the third upper extension extends to a region between the first lower extension and the second lower extension.
    • 本发明的一个示例性实施例公开了一种发光二极管,包括具有第一边缘,与第一边缘相对的第二边缘,连接第一边缘和第二边缘的第三边缘以及与第一边缘相对的第四边缘的下部接触层 第三边缘,布置在下接触层上的台面结构,台面结构包括有源层和上接触层,布置在下接触层上的第一电极焊盘,布置在台面结构上的第二电极焊盘,第一下部 延伸部分和从第一电极焊盘朝向第二边缘延伸的第二下部延伸部分,第一下部延伸部分和第二下部延伸部分的远端彼此远离与第一电极焊盘接触的前端,第一上延伸部分 ,第二上延伸部和从第二电极焊盘延伸的第三上延伸部。 此外,第一上部延伸部分和第二上部延伸部分从第二电极焊盘延伸以包围第一下部延伸部分和第二下部延伸部分,并且第三上部延伸部延伸到第一下部延伸部分和第二下部延伸部分之间的区域。