公开(公告)号：US20110215309A1

公开(公告)日：2011-09-08

申请号：US13062162

申请日：2009-09-04

Applicant: Brian D'Andrade ,  James Esler ,  Vadim Adamovich

Inventor： Brian D'Andrade ,  James Esler ,  Vadim Adamovich

IPC: H01L51/52

CPC classification number: H01L51/5036 ,  H01L51/0061 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5096

Abstract: A device is provided. The device includes an anode, a cathode and a double emissive layer disposed between the anode and the cathode. The double emissive layer includes a first organic emissive layer and a second organic emissive layer. The first organic emissive layer includes a first phosphorescent material having a concentration of 15-35 wt % in the first organic emissive layer, and a peak emissive wavelength in the visible spectrum at a wavelength between 400 nm and 500 nm; and a first host material having a triplet energy at least 0.2 eV and not more than 1.0 eV greater than the triplet energy of the first phosphorescent material. The second organic emissive layer includes a second phosphorescent material having a concentration of 15-35 wt % in the second organic emissive layer, and a peak emissive wavelength in the visible spectrum at a wavelength between 500 nm and 600 nm, and a third phosphorescent material having a concentration of 0.1-3 wt % in the second organic emissive layer, and a peak emissive wavelength in the visible spectrum at a wavelength between 600 nm and 700 nm. The second host material has a triplet energy greater than that of the third phosphorescent emissive material. The second organic emissive layer is disposed between the anode and the cathode, and is adjacent to the first organic emissive layer. The device also includes a blocking layer disposed adjacent to the second organic emissive layer and between the second organic emissive layer and the anode. The blocking layer has a lowest unoccupied molecular orbital that is at least 0.1 eV greater than the lowest unoccupied molecular orbital of the second host material. The device also includes a hole transport layer disposed between the blocking layer and the anode. At least one of the anode and the cathode is transmissive.

Abstract translation: 提供了一种设备。 该装置包括阳极，阴极和布置在阳极和阴极之间的双发射层。 双发射层包括第一有机发射层和第二有机发射层。 第一有机发射层包括在第一有机发射层中具有15-35重量％的浓度的第一磷光材料和在400nm和500nm之间的波长下的可见光谱中的峰值发射波长; 以及具有比所述第一磷光材料的三线态能量大至少0.2eV且不大于1.0eV的三线态能量的第一宿主材料。 第二有机发光层包括在第二有机发射层中具有15-35重量％的浓度的第二磷光材料和在500nm和600nm之间的波长的可见光谱中的峰值发射波长和第三磷光材料 在第二有机发光层中具有0.1-3重量％的浓度，在600nm和700nm之间的波长下的可见光谱中的峰值发射波长。 第二主体材料具有大于第三磷光发光材料的三重态能量。 第二有机发光层设置在阳极和阴极之间，并且与第一有机发射层相邻。 该装置还包括邻近第二有机发射层设置的阻挡层，并且在第二有机发射层和阳极之间。 阻挡层具有比第二主体材料的最低未占有分子轨道大至少0.1eV的最低未占据的分子轨道。 该装置还包括设置在阻挡层和阳极之间的空穴传输层。 阳极和阴极中的至少一个是透射的。

公开(公告)号：US07800295B2

公开(公告)日：2010-09-21

申请号：US11521431

申请日：2006-09-15

Applicant: Brian D'Andrade ,  Mike Weaver

Inventor： Brian D'Andrade ,  Mike Weaver

IPC: H01L51/50 ,  H05B33/14 ,  H05B33/00

CPC classification number: H01L27/3209 ,  H01L51/5036 ,  H01L51/5265

Abstract: The present invention provides OLEDs incorporating microcavities. By combining a microcavity with a non-microcavity emissive layer, improved saturation and luminance may be achieved. OLEDs incorporating microcavities according to the invention may be used to produce white light, and as sub-pixels in full-color displays.

Abstract translation: 本发明提供了结合微腔的OLED。 通过将微腔与非微腔发射层组合，可以实现改善的饱和度和亮度。 根据本发明的结合微腔的OLED可以用于产生白光，并且可以用作全色显示器中的子像素。

公开(公告)号：US20080211390A1

公开(公告)日：2008-09-04

申请号：US11712923

申请日：2007-03-02

Applicant: Brian D'Andrade

Inventor： Brian D'Andrade

IPC: H01J63/04

CPC classification number: H01L51/5265

Abstract: A device is provided that includes an organic emissive layer and a microcavity vertically stacked with the emissive layer, where the emissive layer is not in a microcavity. The microcavity may allow for improved saturation and intensity of emitted light at a variety of viewing angles.

Abstract translation: 提供了一种器件，其包括有机发射层和垂直层叠有发射层的微腔，其中发射层不在微腔中。 微腔可以允许在各种视角下提高发射光的饱和度和强度。

公开(公告)号：US20070075631A1

公开(公告)日：2007-04-05

申请号：US11242025

申请日：2005-10-04

Applicant: Yeh Tung ,  Brian D'Andrade ,  Michael Weaver ,  James Esler

Inventor： Yeh Tung ,  Brian D'Andrade ,  Michael Weaver ,  James Esler

IPC: H05B33/00

CPC classification number: H01L51/5096 ,  H01L51/0059 ,  H01L51/0071 ,  H01L51/0078 ,  H01L51/0085 ,  H01L51/5036 ,  Y10S428/917

Abstract: The present invention relates to OLEDs comprising an electron impeding layer between the cathode and the emissive layer. An organic light emitting device, comprising: an anode; a hole transport layer; an organic emissive layer comprising an emissive layer host and an emissive dopant; an electron impeding layer; an electron transport layer; and a cathode disposed, in that order, over a substrate.

Abstract translation: 本发明涉及在阴极和发射层之间包含电子阻挡层的OLED。 一种有机发光器件，包括：阳极; 空穴传输层; 包括发射层主体和发射掺杂剂的有机发射层; 电子阻挡层; 电子传输层; 以及依次设置在衬底上的阴极。

公开(公告)号：US20050282036A1

公开(公告)日：2005-12-22

申请号：US11211385

申请日：2005-08-24

Applicant: Brian D'Andrade ,  Mark Thompson ,  Stephen Forrest

Inventor： Brian D'Andrade ,  Mark Thompson ,  Stephen Forrest

IPC: C09K11/06 ,  H01J1/74 ,  H01J29/32 ,  H01L51/50 ,  H05B33/14

CPC classification number: C09K11/06 ,  C09K2211/1029 ,  C09K2211/1092 ,  C09K2211/185 ,  H01L51/5016 ,  H01L51/5036 ,  H01L51/5088 ,  H01L51/5096 ,  Y10S428/917 ,  Y10T428/24942

Abstract: The present invention relates to efficient organic light emitting devices (OLEDs) doped with multiple light-emitting dopants, at least one dopant comprising a phosphorescent emitter, in a thin film emissive layer or layers. The present invention is directed to an efficient phosphorescent organic light emitting device utilizing a plurality of emissive dopants in an emissive region, wherein at least one of the dopants is a phosphorescent material. Thus, the present invention provides an organic light emitting device comprising an emissive region, wherein the emissive region comprises a host material, and a plurality of emissive dopants, wherein the emissive region is comprised of a plurality of bands and each emissive dopant is doped into a separate band within the emissive region, and wherein at least one of the emissive dopants emits light by phosphorescence.

Abstract translation: 本发明涉及掺杂有多个发光掺杂剂的有效的有机发光器件（OLED），至少一种包含磷光发射体的掺杂剂在薄膜发射层或多层中。 本发明涉及在发射区域中利用多个发射掺杂剂的有效磷光有机发光器件，其中至少一种掺杂剂是磷光材料。 因此，本发明提供了一种包括发射区域的有机发光器件，其中发射区域包括主体材料和多个发射掺杂剂，其中发射区域由多个带组成，并且每个发光掺杂剂被掺杂到 发射区域内的单独的带，并且其中至少一个发射掺杂剂通过磷光发光。

公开(公告)号：US06863997B2

公开(公告)日：2005-03-08

申请号：US10328914

申请日：2002-12-24

Applicant: Mark E. Thompson ,  Jason Brooks ,  Vadim Adamovich ,  Stephen R. Forrest ,  Brian D'Andrade

Inventor： Mark E. Thompson ,  Jason Brooks ,  Vadim Adamovich ,  Stephen R. Forrest ,  Brian D'Andrade

IPC: C09K11/06 ,  H01L51/00 ,  H01L51/30 ,  H01L51/50 ,  H05B33/14

CPC classification number: H01L51/5036 ,  H01L51/0037 ,  H01L51/0042 ,  H01L51/0072 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/5016 ,  H01L51/5096 ,  H01L2251/308 ,  Y10S428/917

Abstract: The present invention relates to efficient organic light emitting devices (OLEDs). More specifically, the present invention relates to white-emitting OLEDs, or WOLEDs. The devices of the present invention employ two emitters in a single emissive region to sufficiently cover the visible spectrum. White emission is achieved from two emitters in a single emissive region through the formation of an aggregate by one of the emissive centers. This allows the construction of simple, bright and efficient WOLEDs that exhibit a high color rendering index.

Abstract translation: 本发明涉及有效的有机发光器件（OLED）。 更具体地说，本发明涉及白色发光OLED或WOLED。 本发明的装置在单个发射区域中使用两个发射体来充分覆盖可见光谱。 通过由发射中心之一形成聚集体，在单个发射区域中的两个发射体实现白色发射。 这样可以构建出具有高显色指数的简单，明亮和高效的WOLED。