发明名称 Solid-state light-emitting element, light-emitting device, and lighting device
摘要 A solid-state light-emitting element includes a structure body having a property of transmitting visible light and an uneven structure on each of the top side and the bottom side thereof; a high refractive index material layer provided on one surface of the structure body; and a light-emitting body with a refractive index of greater than or equal to 1.6 provided over the high refractive index material layer. One surface of the high refractive index material layer is flatter than the other surface thereof which is in contact with the structure body. The refractive index of the high refractive index material layer is greater than or equal to 1.6. The refractive index of the structure body is greater than 1.0 and less than that of the high refractive index material layer.
申请公布号 US9356209(B2) 申请公布日期 2016.05.31
申请号 US201414505843 申请日期 2014.10.03
申请人 Semiconductor Energy Laboratory Co., Ltd. 发明人 Seo Satoshi;Ikeda Hisao;Kawata Takuya
分类号 H01L33/00;H01L33/58;H01L51/52;H01L33/22;H01L33/56 主分类号 H01L33/00
代理机构 Husch Blackwell LLP 代理人 Husch Blackwell LLP
主权项 1. A solid-state light-emitting element comprising: a structure body capable of transmitting visible light, the structure body including: a first layer, one surface of the first layer including a first uneven structure; anda second layer, one surface of the second layer being in contact with the other surface of the first layer and the other surface of the second layer including a second uneven structure; a high refractive index material layer over and in contact with the one surface of the first layer; and an EL layer with a refractive index of greater than or equal to 1.6 over the high refractive index material layer, wherein one surface of the high refractive index material layer is flatter than the other surface in contact with the first layer, wherein a refractive index of the high refractive index material layer is greater than or equal to 1.6, wherein a refractive index of the first layer and a refractive index of the second layer are greater than 1.0 and less than the refractive index of the high refractive index material layer, and wherein the other surface of the second layer is an outermost surface of the solid-state light-emitting element from which light is extracted.
地址 JP