发明名称 |
Transparent OLED light extraction |
摘要 |
The present disclosure provides novel light emitting devices including AMOLED displays, based on transparent OLED architecture, where a laminated nanostructured light extraction film can produce axial and integrated optical gains as well as improved angular luminance and color. Generally, the transparent AMOLED displays (100) with laminated sub-micron extractors (110a-c) include: (a) an extractor (110a) on a transparent substrate (112a) for light outcoupling on both sides of the transparent device (120); or (b) an extractor (110b) on a reflective film (112b) for providing light outcoupling off the bottom side of the bottom-emitting (BE) AMOLED (120); or (c) an extractor (110c) on a light absorbing film (112c) for providing outcoupling off the bottom side of the BE AMOLED (120) combined with improved ambient contrast. |
申请公布号 |
US9537116(B2) |
申请公布日期 |
2017.01.03 |
申请号 |
US201314420747 |
申请日期 |
2013.08.15 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
Lamansky Sergey;Arefe Ghidewon;Behrman Keith L.;McMan Steven J.;Anim-Addo Jonathan A.;Tolbert William A. |
分类号 |
H01L33/00;H01L51/52;G02B5/18;H01L51/50;H01L29/04;H01L29/10;H01L31/00 |
主分类号 |
H01L33/00 |
代理机构 |
|
代理人 |
Iden Daniel J. |
主权项 |
1. A light emitting device, comprising:
an organic light emitting diode (OLED) device having a top electrode and an opposing bottom electrode disposed on a backplane, wherein each of the top electrode, the opposing bottom electrode and the backplane are substantially transparent to light emitted by the OLED device; a capping layer disposed immediately adjacent the top electrode; and a light extraction film disposed adjacent the capping layer, wherein the light extraction film comprises a substrate comprising a material substantially reflective to light emitted by the OLED device, such that a portion of the light emitted by the OLED device reflects from the substrate and passes through the backplane, a layer of nanostructures applied to the substrate, and a backfill layer disposed over the nanostructures and adjacent the capping layer, the backfill layer having an index of refraction greater than the index of refraction of the nanostructures. |
地址 |
Saint Paul MN US |