Organic light emitting devices

Aziz, Hany, Vamvounis, George, Hu, Nan-Xing, Raspopovic, Zoran D., and Coggan, Jennifer A. LG Display Co., Ltd. (Seoul, KR) (2007) Organic light emitting devices. US 7,291,404 B2 .

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The present invention is an organic light emitting device (OLED) comprising an anode, a cathode and a luminescent region provided between the anode and the cathode. The luminescent region comprises an electron injection and transporting zone and at least one of a hole injection and transporting zone and a mixed charge transport layer. One or both of the electron injection and transporting zone and the mixed charge transporting layer comprises an azole compound represented by formula I and/or II. The provision of the novel azole compounds of the invention as electron transport materials within an organic electroluminescent device advantageously reduces power consumption and increases power conversion efficiency within the device and as such, are suitable for a variety of display applications.

Item ID: 40287
Item Type: Patent
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Date Deposited: 26 Aug 2015 02:52
FoR Codes: 03 CHEMICAL SCIENCES > 0305 Organic Chemistry > 030505 Physical Organic Chemistry @ 100%
SEO Codes: 85 ENERGY > 8507 Energy Conservation and Efficiency > 850799 Energy Conservation and Efficiency not elsewhere classified @ 100%
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