公开(公告)号：US20160028036A1

公开(公告)日：2016-01-28

申请号：US14774817

申请日：2014-03-11

Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.

Inventor： Jiangeng Xue

IPC: H01L51/50 ,  H01L51/52

CPC classification number: H01L51/5036 ,  H01L51/5016 ,  H01L51/5275 ,  H01L2251/303 ,  H01L2251/5369

Abstract: A white light source is a hybrid organic light emitting diode (OLED) device having an electroluminescent layer including a blue emitting organic phosphor or a combination of a green emitting organic phosphor with a blue emitting phosphor and a conversion layer including photoluminescent quantum dots (QDs) at or near the light exiting face of the hybrid OLED. TheQDs down-convert a portion of the blue or blue and green light to higher wavelengths of visible light, where the combination of wavelengths exiting the device provides white light. The QDs can be within an array of microlenses on the light exiting surface of the hybrid OLED to enhance the efficiency of light emission from the electrically excited phosphors and the down-conversion QDs.

Abstract translation: 白色光源是具有包含蓝色发光有机荧光体的电致发光层的混合有机发光二极管（OLED）装置或者具有蓝色发光荧光体的绿色发射有机荧光体和包含光致发光量子点（QDs）的转换层的组合， 在混合OLED的光出射面处或附近。 QDs将蓝色或蓝色和绿色光的一部分下变换为较高波长的可见光，其中离开设备的波长组合提供白光。 量子点可以在混合OLED的光出射表面上的微透镜阵列内，以提高来自电激发的荧光体和下变换量子点的发光效率。