Nitto-denko Corporation

Liping Ma

Shijun Zheng

Amane Mochizuki

David T Sisk

Brett T Harding

Qianxi Lai

Sazzadur Rahman Khan

Sheng Li

Hyunsik Chae

Rebecca Romero

Jensen Cayas

Hyun Sik Chae

Rebecca Bottger

The present disclosure relates to an emissive construct, which can be used in various OLED applications, for example, top-emission white organic light-emitting diodes. The emissive construct can include an optional second fluorescent emissive layer having an emitter with a second T1, a first fluorescent emissive layer having an emitter with a first T1, the first T1 being greater than the second T1 value, a hole-blocking layer, and a phosphorescent emissive layer.

Top-emitting white organic light-emitting diodes having improved efficiency and stability

Light-emitting devices comprising light-emitting diodes are described herein. These devices may include a substrate, a reflective anode, a hole-injection layer, a hole-transport layer, an emissive component, an electron-transport layer, a cathode, an enhancement layer, and a light-scattering layer. The emissive component may include first and second fluorescent light-emitting layers with an intervening phosphorescent light-emitting layer or first and second phosphorescent light-emitting layers with an intervening fluorescent light-emitting layer.

Efficient organic light-emitting diodes and fabrication of the same

The present disclosure relates to an emissive construct, which can be used in various OLED applications, for example, top-emission white organic light-emitting diodes. The emissive construct includes a fluorescent emissive layer, a partial hole-blocking layer, and a phosphorescent emissive. A recombination zone is shared between the fluorescent emissive layer and the phosphorescent emissive layer, such that the thickness of the partial hole-blocking layer is less than about one-third of the thickness of the recombination zone.

Generally, the devices provided herein comprise at least a hole-transport layer, two light-emitting layers, and an electron-transport layer, each having a highest occupied molecular orbital (HOMO) energy level and a lowest unoccupied molecular orbital (LUMO) energy level, wherein at least one of the HOMO energy levels and/or the LUMO energy levels of at least one of the light-emitting layers does not decrease in a stepwise fashion.

Organic light-emitting diode with enhanced efficiency

Polyphenylene compounds such as compounds represented by Formula 1 may be used in electronic devices such as organic light-emitting devices. For example, the compounds may be used as host materials in a light-emitting layer.

Polyphenylene host compounds

Included herein is the compound: and related compounds, and light-emitting devices comprising the same.

Compounds for use in light-emitting devices

Polyphenylene compounds such as compounds represented by Formulas 1-28 may be used in electronic devices such as organic light-emitting devices. For example, the compounds may be used as host material in an emissive layer.

Organic light emitting host materials

Polyphenylene compounds such as compounds represented by Formula I may be used in electronic devices such as organic light-emitting devices. For example, the compounds may be used as host materials in a light-emitting layer.

Methods and devices related to the treatment of diseases using phototherapy are described. Some embodiments provide an organic light-emitting diode device, such as a light-emitting device for phototherapy, comprising Ring system, Ring system, Ring system, or Ring system. Methods of treating disease with phototherapy are also described.

Phototherapy devices and methods comprising optionally substituted terphenyl and quaterphenyl compounds

Emissive constructs having three emissive layers, each having the same fluorescent host are described. At least one of the layers further includes a phosphorescent dopant. Light-emitting devices including these emissive constructs are also described.

Hybrid composite emissive construct and light-emitting devices using the same

Disclosed herein are compounds represented by a formula: Wherein Ar, Cb, Ph, Het, and A are described herein. Compositions and light-emitting devices related thereto are also disclosed.

Compounds for organic light emitting diode emissive layers

Compounds including optionally substituted Ring Systems 1-4 are described. These compounds may be used as hosts in light-emitting devices. A light-emitting device comprising a compound selected from optionally substituted Ring Systems 1-4 is also described. The Ring Systems 1-4 are: 

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San Diego, CA, United States of America

Liping Ma