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公开(公告)号：US10749127B2
公开(公告)日：2020-08-18
申请号：US15570686
申请日：2017-07-26
发明人： Wei Huang
IPC分类号： H01L29/08 , H01L33/00 , H01L31/0232 , H01L21/00 , H01L51/40 , H01L51/50 , H01L51/52 , H01L27/32
摘要： The present disclosure discloses a white OLED device, which includes a substrate, an anode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer that are disposed to be sequentially laminated; the white OLED device further includes a reflective layer disposed on the electron injection layer or a reflective layer interposed between the substrate and the anode, wherein a material of the reflective layer has a selective reflection function on light having different wavelengths. The white OLED device according to the present disclosure adjusts a spectrum of the device by utilizing the reflective layers of different materials, to optimize the luminous efficiencies of the respective light-emitting materials in the white OLED device during a light-emitting period, thereby overcoming the defect in the prior art that in order to match the light-emitting materials having low luminous efficiencies, actual luminous efficiencies of other light-emitting materials having higher specified luminous efficiencies are artificially reduced, which causes the light-emitting materials having the higher specified luminous efficiencies to generate more heat, so as to avoid problems of mismatching of concentration of carriers, high heat, accumulation of charges and heat and so on in the device.
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公开(公告)号：US20190051852A1
公开(公告)日：2019-02-14
申请号：US15570686
申请日：2017-07-26
发明人： Wei Huang
摘要： The present disclosure discloses a white OLED device, which includes a substrate, an anode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer that are disposed to be sequentially laminated; the white OLED device further includes a reflective layer disposed on the electron injection layer or a reflective layer interposed between the substrate and the anode, wherein a material of the reflective layer has a selective reflection function on light having different wavelengths. The white OLED device according to the present disclosure adjusts a spectrum of the device by utilizing the reflective layers of different materials, to optimize the luminous efficiencies of the respective light-emitting materials in the white OLED device during a light-emitting period, thereby overcoming the defect in the prior art that in order to match the light-emitting materials having low luminous efficiencies, actual luminous efficiencies of other light-emitting materials having higher specified luminous efficiencies are artificially reduced, which causes the light-emitting materials having the higher specified luminous efficiencies to generate more heat, so as to avoid problems of mismatching of concentration of carriers, high heat, accumulation of charges and heat and so on in the device.
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公开(公告)号：US09312503B2
公开(公告)日：2016-04-12
申请号：US14398121
申请日：2014-05-28
发明人： Qiang Zhao , Wei Huang , Shujuan Liu , Yifan Wang , Qinghua Zou
CPC分类号： H01L51/0085 , C07F15/00 , C07F15/0033 , C09K11/06 , C09K2211/1007 , C09K2211/1029 , C09K2211/185 , H01L51/5016
摘要： The present invention provides a green light iridium (III) complex and a method of preparing the same, which has a formula as follows: wherein m is 2 or 3; at least one of Ar1, Ar2, Ar3, Ar4, and Ar5 is a group containing fluorophenyl unit, which has a formula as follows: wherein R1, R2, R3, R4, R5 are H, CH3, or FCF3, and at least one of R1, R2, R3, R4, R5 is F or CF3. The green light iridium (III) complex of the present invention has higher light emitting efficiency; the method of preparing the same has tender reaction conditions, simple synthesis steps and easy to handle. Due to the fluorophenyl unit capable of transporting electrons introduced therein, carrier current mobility and exciton transporting equilibrium are increased to contribute better exciton recombination so as to enhance performance of an organic electroluminescent device.
摘要翻译： 本发明提供一种绿光铱（III）络合物及其制备方法，其具有下式：其中m为2或3; Ar 1，Ar 2，Ar 3，Ar 4和Ar 5中的至少一个是含有氟苯基单元的基团，其具有下式：其中R 1，R 2，R 3，R 4，R 5是H，CH 3或FCF 3，并且至少一个 R 1，R 2，R 3，R 4，R 5为F或CF 3。 本发明的绿光铱（III）络合物具有较高的发光效率; 其制备方法具有招标反应条件，合成步骤简单，易于处理。 由于能够输送引入其中的电子的氟苯基单元，增加了载流子迁移率和激子传输平衡，以促进更好的激子复合，从而提高有机电致发光器件的性能。
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