Huawei Technologies Co., Limited

Hon Hai Precision Industry Co., Ltd.

Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Guangdong University of Technology

Liang Gao

Ming-Yue Chen

Sung-Pei Hou

Zhen-Qi Yang

Jiangtao Wang

Jia-Jia Cai

Haiquan Li

Guoqing Zhang

Yanping Huo

Wencheng Chen

Jiye Luo

Hongping Xiang

Shaomin Ji

Yudong Wen

Jingwei Zhao

Zhaoyan Wen

Jian Da

Xiang Shi

Guan Li

Zhonglei Zhu

Jiafei Liu

Wurun Zhou

Zhi Dong

Wanjiang Xiong

Guojie Huang

Provided are a phenanthroimidazole derivative, and a preparation method therefor, and an application thereof. The phenanthroimidazole derivative has a structural formula as shown in Formula (I), R being an electron donor group, wherein by taking a phenanthroimidazole group containing a trifluoromethyl phenyl group as an electron acceptor, and in virtue of the properties of the specific electron donor group R, the phenanthroimidazole derivative containing a light-absorbing photosensitive group of a series D-π-A structure is synthesized, and can be used as a photoinitiator, which is used in the technical field of UV light-curing systems or 3D printing. The phenanthroimidazole derivative has a certain conjugated chain length, can increase its photon absorption cross section, can serve as a photoinitiator of a UV light-curing system, for initiating a polymerization reaction at a wavelength of 365 nm, and has high polymerization efficiency; a double bond conversion rate of the phenanthroimidazole derivative in 50 s is up to 88.34%.

Phenanthroimidazole derivative, and preparation method therefor and application thereof

An alternating current/direct current input device includes an appliance input socket and an information and communications technology (ICT) device. The ICT device is powered by the appliance input socket. The appliance input socket includes a ground contact, a positive electrode contact, a negative electrode contact, and a signal switch. A contact depth of the signal switch in the appliance input socket is less than a contact depth of the positive electrode contact or the negative electrode contact in the appliance input socket. The signal switch is configured to generate a control signal when a direct current connector is separated from the appliance input socket. The control signal can be used to enable the ICT device to disconnect the appliance input socket from a conductive electrode of the direct current connector after the ICT device enters a no load state.

Direct current connector, alternating current/direct current input device, and alternating current/direct current input system

The embodiment of the disclosure discloses an information display method, device and terminal. The method includes: a system application process creating a task of downloading or updating an application, acquiring relevant information of the application, and transmitting the relevant information of the application to a desktop process, wherein the relevant information of the application comprises a package name, an icon storage path, a downloading progress, and a downloading/installing status of the application; the desktop process acquiring an icon of the application based on the icon storage path, and displaying the icon of the application on a system desktop, displaying a translucent mask corresponding to the download progress of the application on an upper layer of the icon of the application; and displaying the downloading/installing status of the application around the icon of the application.

Information display method, device and terminal for displaying progress on application icon

A burn-in socket includes a base, a sliding plate mounted to the base and having a number of pin holes, a number of contacts secured to the base and an actuator mounted on the base. The contacts each comprise a base portion and a pair of arms received in the pin holes of the sliding plate. The actuator includes a frame and a number of actuating portion for driving the sliding plate to move in a transversal direction. The sliding plate includes a number of projections adjacent to contacts. Each projection and the pair of arms of an adjacent contact together define a receiving space and located at three sides of the receiving space, respectively.

Burn-in socket

Growing community of inventors

Guangdong, China

Liang Gao