Tsinghua University

Kunshan Visionox Technology Co., Ltd.

Beijing Visionox Technology Co., Ltd.

Kunshan Visionox Display Co., Ltd.

Beijing Visionox Technology

Kongwu Wu

Yong Qiu

Guohui Zhang

Lian Duan

Yudi Gao

Yang Li

Deqiang Zhang

Shenfu Zhang

The present invention relates to monochromatic organic light emitting devices. The organic light emitting device includes a substrate, an anode, a cathode and an organic electroluminescent medium disposed between the anode and the cathode, wherein the organic electroluminescent medium includes compound monochromatic luminescent layer; and the compound monochromatic luminescent layer includes host A doped with monochromatic dopant and host B doped with monochromatic dopant, wherein the host A is consisted of two kinds of materials with different transporting characteristics, one is hole-transporting material, and the other is electron-transporting material. In addition, the present invention further relates to white organic light emitting devices, wherein the organic electroluminescent medium is consisted of at least one compound monochromatic luminescent layer, which includes host A doped with monochromatic dopant and host B doped with monochromatic dopant. The present invention provides a design to improve the lifetime of the organic light emitting device markedly.

Organic light emitting devices

The present invention relates to a method of preparing a Li film, wherein said Li film is fabricated by directly decomposing a compound of Li under a vacuum evaporation condition, and said compound is LiN. Said Li film is fabricated by decomposing LiN at an evaporation rate of 0.01-0.25 nm/s and an evaporation temperature of 300-450&#xb0; C., and said Li film has a thickness of 0.3-5.0 nm. The present invention also relates to an organic light emitting device comprising said Li film as an electron injection layer and a method for the preparation thereof, and an organic light emitting device including an electron injection layer comprising an electron transport material doped with Li obtained by decomposing LiN under a vacuum evaporation condition, and a method for the preparation thereof.

Methods of preparing a Li film and methods of preparing an organic light emitting device

The present invention relates to an organic electroluminescent display, including a substrate, a set of anodes, an organic functional layer, a set of cathodes and a packaging sheet, wherein a set of electrode leads are disposed on the packaging sheet for electrical connection with a control circuit of the display, and the electrode leads includes a set of anode leads and a set of cathode leads which are electrically connected with the corresponding anodes and cathodes on the substrate, respectively. The present invention further relates to a double-sided organic electroluminescent display having the above features.

Organic electroluminescent display/source with anode and cathode leads

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Beijing, China

Kongwu Wu