公开(公告)号：US20150249186A1

公开(公告)日：2015-09-03

申请号：US14618591

申请日：2015-02-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YASUHISA INADA ,  TAKU HIRASAWA ,  YOSHITAKA NAKAMURA ,  AKIRA HASHIYA ,  MITSURU NITTA ,  TAKEYUKI YAMAKI

IPC: H01L33/22 ,  H01L33/10

CPC classification number: H01L33/58 ,  H01L31/02322 ,  H01L31/12 ,  H01L31/125 ,  H01L33/00 ,  H01L33/505 ,  H01L2027/11853

Abstract: A light-emitting device includes a photoluminescent layer that emits light containing first light, and a light-transmissive layer located on or near the photoluminescent layer. A submicron structure is defined on at least one of the photoluminescent layer and the light-transmissive layer. The submicron structure includes at least projections or recesses. The submicron structure has spatial frequency components distributed at least from more than 0 to 2/Dint(min) as determined by two-dimensional Fourier transform of a pattern of the projections or recesses and satisfies the following relationship: 0.8Dint(min)

Abstract translation: 发光器件包括发射含有第一光的光的光致发光层和位于光致发光层上或附近的透光层。 亚微米结构限定在光致发光层和透光层中的至少一个上。 亚微米结构至少包括凸起或凹槽。 亚微米结构具有至少从0到2 / Dint（min）分布的空间频率分量，如通过凹凸图案的二维傅里叶变换所确定的，满足以下关系：0.8Dint（min）<λa / nwav-a其中Dint（min）是相邻突起或凹部之间的最小中心到中心距离，λa是空气中第一光的波长，nwav-a是第一光的光致发光层的折射率 光。