Beijing Summer Sprout Technology Co. Ltd.

Jing-jin Electric Technologies (beijing) Co., Ltd.

International Business Machines Corporation

Beihang University

Boe Technology Group Co., Ltd.

Hefei Xinsheng Optoelectronics Technology Co., Ltd.

Xiaomi Inc.

Jing-jin Electric Technologies Co., Ltd.

Central Iron and Steel Research Institute

Wei Cai

Zhen Wang

Chi Yuen Raymond Kwong

Chuanjun Xia

Ming Sang

Tao Wang

Hongbo Li

Shixia Liu

Ningfang Song

Yang Wang

Ming Wang

Feng Li

Dongfang Wang

Qiang Zhang

Yang Song

Haitao Wang

Jie Wang

Ping Yu

Yongfeng Xia

Bo Feng

Yi Zheng

Guangyao Li

Pengfei Zhang

Rong Liu

Michelle Xue Zhou

Yong Yang

Nan Cao

Jing Jin

Shimei Pan

Gang Yang

Zhihao Zhang

Biao Luo

Wei Hong Qian

Junfei Wang

Xuehai Gui

Liheng Wang

Li Tan

Xuechao Sun

Chunxi Zhang

Xiaoyang Wang

Chengyi Wang

Weimin Zhang

Hualin Ye

Jianfei Yao

Xiaobin Xu

Jin Su

Chaowei Hao

Zhenjun Zhang

Jingming Song

Fuyu Gao

Libin Yang

Weile Li

Xinglian Yuan

Jiangtao Wang

Xiao Xiao Lian

Yanfei Wan

Qibin Liang

Jinxuan Zhao

Provided is an organic electroluminescent device. The organic electroluminescent device has a first metal complex containing a ligand with a structure of Formula 1 and a first compound with a structure of Formula 2. Compared with the related art, a combination of such two compounds can significantly improve performance of the organic electroluminescent device, such as external quantum efficiency, power efficiency and current efficiency of the device. Further provided are an electronic apparatus including the organic electroluminescent device and a compound composition containing the first metal complex and the first compound.

Organic electroluminescent device

Provided are a phosphorescent organometallic complex and a device thereof. The organometallic complex contains a ligand Lhaving a structure of Formula 1 and a ligand Lhaving a structure of Formula 2. Such metal complexes can be used as light-emitting materials in electroluminescent devices. These novel compounds in organic electroluminescent devices can effectively improve efficiency, reduce device voltage, and provide better device performance. Further provided are an organic electroluminescent device containing the metal complex and a compound composition containing the metal complex.

Phosphorescent organometallic complex and device thereof

A metal complex with fluorine substitution is disclosed, which employs a series of new ligands containing fluorine-substituted structure can be used as a luminescent material in an emissive layer of an electroluminescent device. By using the metal complex can provide much longer device lifetime, better thermal stability, no blue-shifted illumination, and higher luminous efficiency. An electroluminescent device and compound formulation are also disclosed.

Metal complex with fluorine substitution

Provided are a phosphorescent organometallic complex and a use thereof. The metal complex has a ligand with a structure represented by Formula 1 and may be used as a light-emitting material in an electroluminescent device. These novel metal complexes can not only maintain low voltage and improve device efficiency in electroluminescent devices but also greatly reduce the half-peak width of light emitted by these devices so as to greatly improve color saturation of the light emitted by these devices, thereby providing better device performance. Further provided are an electroluminescent device and a compound formulation.

Phosphorescent organic metal complex and use thereof

An organic light-emitting material containing cyano-substituted ligand is disclosed. The organic light-emitting material is a metal complex containing a cyano-substituted ligand, which can be used as a light-emitting material in a light-emitting layer of an organic electroluminescent device. These new complexes can provide better device performance, e.g., narrower full width at half maximum, lower voltage values, and higher quantum efficiency, and the like. An electroluminescent device and a compound formulation containing the metal complex, and a compound capable of being used to prepare the metal complex are also disclosed.

Organic light-emitting materials containing cyano-substituted ligand

A method of detecting threshold voltage shift and a threshold voltage shift detection device are provided. The method is applied to a pixel driving circuit which I is electrically coupled to a control line, a voltage line and a detection node, respectively. The method includes: in a detection cycle including a setting phase and a detection phase, in the setting phase, controlling a transistor included in the pixel driving circuit to be in a biased state; in the detection phase, providing a preset control voltage signal to the control line, providing a preset voltage signal to the voltage line, and determining a threshold voltage shift state of the transistor according to an electric potential of the detection node.

Method of detecting threshold voltage shift and threshold votage shift detection device

The nondestructive determination of core size of a hollow-core photonic bandgap fiber (HC-PBF) using Fabry-Perot (FP) interference is performed with an apparatus including a tunable laser source (TLS), a 1&#xd7;2 single-mode (SM) coupler, an SM collimator, a six-axis translation stage, an optical detector, and an oscilloscope. The light from the TLS passes through the 1&#xd7;2 SM coupler and the SM collimator to perpendicularly enter two parallel air-SiOinterfaces of the core of the fiber and is reflected, while the TLS is tuned from one wavelength to another. Then the reflected spectrum is guided to the optical detector, where its interference intensity is converted into voltage intensity to be displayed at the oscillator and fitted with a least-squares method to obtain the distance between the two air-SiOinterfaces. The core size of the fiber can be obtained by rotating the fiber and repeating the procedure at multiple angular positions.

Method and apparatus for nondestructive determination of core size of hollow-core photonic bandgap fiber using Fabry-Perot interference

A flight control method includes: determining a positional relationship between an aircraft and a control device; determining a polar coordinate system with the control device as an origin according to the positional relationship; receiving a flight direction control instruction sent by the control device, the flight direction control instruction being generated on the basis of the polar coordinate system; and driving, according to coordinate information about the aircraft in the polar coordinate system, the aircraft to fly in accordance with the flight direction control instruction.

Flight control method and apparatus

The low magnetic sensitivity PM-PCF based on mechanical buffer is obtained by adding buffer structures in the cladding layer of the photonic crystal fiber. In the center of the fiber, the core region contains at least 3 layers of air-holes, enclosed by the cladding layer. The buffer structures are placed in the cladding layer. These buffer structures are formed by replacing silica of any shape by air, and are symmetrically located in X-axis and Y-axis directions to achieve mechanical isotropy. The buffer structures improve the fiber's performance in fiber coiling and stress conditions. Therefore, the fiber optic gyroscope using the PM-PCF can do without a magnetic shield, thus greatly reducing the weight of the fiber optic gyroscope and extending the scope of its application. Compared with the conventional commercial PCF, the PM-PCF provides the fiber optic gyroscope with lower temperature sensitivity and improved accuracy.

Kind of low magnetic sensitivity PM-PCF based on mechanical buffer

A rotor device of an integrated starter-generator motor and a rotor working system are disclosed in the present invention. The rotor device is a monobloc cast, that is machined, to form an inseparable one-piece structure. The rotor device takes the shape of a straw hat and is provided with an external side surface of a hat top being surface (), an external side surface of a hat brim being surface (), an inner side surface of the hat brim being surface () and a surface () which connects the surface () with the surface (). The surface () of the rotor device is provided with multiple through holes () used for fixing with a crankshaft (). The surface () of the rotor device is provided with multiple threaded holes () used for connecting with a clutch. The threaded holes () pass through the surface () corresponding to the surface ().

Rotor device of integrated stater-generator motor and rotor working system

An AC claw-pole electric motor includes a casing, a stator connected with the casing, a rotor and two exciting parts. The rotor includes a rotor shaft (), a center magnetic yoke (), a first side magnetic yoke (), a second side magnetic yoke (), and claw poles () provided on the center magnetic yoke (), the first side magnetic yoke () and the second side magnetic yoke (). The two exciting parts are respectively provided in spaces formed by the center magnetic yoke (), the first side magnetic yoke (), the second side magnetic yoke () and the claw poles (). The axial exciting magnetic fluxes of the two exciting parts are opposite in direction. Thus, the main magnetic flux and the magnetic energy product of the electric motor are increased, and the output and the operation efficiency of the electric motor at a low speed are improved.

Claw-pole motor with permanent magnet and electrically exciting parts

An electrical machine including a casing (), an oil inlet hole (), an oil passage (), oil outlet holes (), a stator retainer (), a casing end cover (), a stator iron core (), winding coils (), slot insulations () and oil-guides (). The oil passage () is located inside the casing () and links with the oil inlet hole () of the casing () and the oil outlet holes () of the stator retainer (). The oil outlet holes () are located above the winding coils () and the oil-guides () are located between the oil outlet holes () and the winding coils (). Oil entering from the oil inlet hole () pours onto the winding coils () by the guidance of the oil-guides () after flowing through the oil passage () and flowing out of the oil outlet holes (). The winding coils of the electrical machine can be effectively cooled and the electrical machine can achieve higher thermal durability. An oil cooling method for the electrical machine is also provided.

Electric machine and oil cooling method for electrical machine

An apparatus for testing number of turns, used for testing the number of turns of a winding coil on an electrical machine stator with concentrated winding, comprising: a base (); a rod-shaped rotor bracket () around one end of which an excitation coil () is wound and around the other end of which a standard coil () is wound; a joining member for joining the base () with the rotor bracket () so that the base () and the rotor bracket () can rotate relative to each other, wherein the plane of the base () is parallel to the rotor bracket (); a fixing member for fixing the electrical machine stator () with concentrated winding to the base () so as to make the stator () concentric and coplanar with the rotor bracket (); a galvanometer () connected to the standard coil (), which is connected to the tested coil () of the stator () in reverse polarity to form a loop during testing. Also provided is a method for using the apparatus to test the number of turns. The apparatus for testing number of turns has a simple structure, is of great utility and can test the number of turns of a winding coil on an electrical machine stator with concentrated winding directly.

Apparatus and method for testing number of turns on coil

A method and an apparatus for animating transition among a dynamic graph series including a preceding graph and a succeeding graph which are temporally sequentially displayed. The method includes: selecting an unchanged node which is the nearest to a removed node and merging through animation the removed node with the unchanged node, thereby animating removal of the removed node; and selecting an unchanged node which is the nearest to an added node and splitting through animation the added node from the unchanged node, thereby animating addition of the added node. During the animation, the moving distances of the nodes can be shortened, and the crossing of movement paths and the crossing of graph edges can be prevented during the movement of the nodes, thereby visualizing smoothly and clearly transition among dynamic graph series.

Method and apparatus for animating transition among dynamic graph series

A method and system of producing a visual text summarization. According to the method, a plurality of topics may be extracted from a collection of text documents, where each of the topics comprises a distribution of topic keywords. An importance ranking for each of the topics may be determined, and an importance ranking for each of the topic keywords of a topic may also be determined. A graph may be displayed having a plurality of stacked layers representing a group of topics selected from the plurality of topics based on the importance ranking of the topics. A keyword cloud within each layer of the graph may also be displayed, where the one keyword cloud is a group of topic keywords selected from the extracted topic keywords based on the importance ranking of the extracted topic keywords.

Producing a visual summarization of text documents

Growing community of inventors

Beijing, China

Wei Cai