公开(公告)号：US11843263B2

公开(公告)日：2023-12-12

申请号：US17043266

申请日：2020-04-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhichao Li ,  Tianyue Zhao ,  Xianzhen Li ,  Enhui Guan ,  Tianxiao Zhao ,  Wei Deng ,  Donglei Mu ,  Masakazu Okamura

IPC: H02J50/00 ,  H02J50/60 ,  G01V3/10 ,  H02J50/12

CPC classification number: H02J50/60 ,  G01V3/104 ,  H02J50/12

Abstract: The present disclosure relates to a charging system, a foreign object detection method and component, and a charging control method and device, which belong to the wireless technical field. The foreign object detection method includes receiving a voltage value and a current value of the transmitting coil, and determining a mutual inductance value of the transmitting coil according to the voltage value and the current value of the transmitting coil; receiving a voltage value and a current value of the receiving coil, and determining a mutual inductance value of the receiving coil according to the voltage value and the current value of the receiving coil; and determining whether there is a conductor foreign object between the receiving coil and the transmitting coil according to the mutual inductance value of the transmitting coil and the mutual inductance value of the receiving coil.

公开(公告)号：US11574614B2

公开(公告)日：2023-02-07

申请号：US16945243

申请日：2020-07-31

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xitong Ma ,  Lihua Geng ,  Xianzhen Li ,  Donglei Mu

IPC: G09G5/39 ,  G09G5/397 ,  G09G3/20

Abstract: The present disclosure provides a method and device for switching a display channel, a display driving device and a display device. The method includes: sending a first switching signal to a write controller of a current display channel when a switching instruction for switching from the current display channel to a target display channel is received; acquiring a frame address in which final write operation of data is completed, and taking the frame address as a first address and a next frame address as a second address; sending a second switching signal to a write controller of the target display channel; and sending a third switching signal to a read controller.