公开(公告)号：US20220415282A1

公开(公告)日：2022-12-29

申请号：US17622165

申请日：2020-06-23

Applicant: Huawei Device Co., Ltd.

Inventor： Yu LI ,  Liang Wang ,  Jian Chen ,  Xin Wang

IPC: G09G5/00 ,  G06F3/041 ,  H04N5/08

Abstract: Embodiments of this application provide a control method based on a vertical synchronization signal and an electronic device, to shorten a response delay of the electronic device and improve fluency of the electronic device without increasing load of the electronic device. The method may include: drawing, by an electronic device including a display screen, one or more layers in response to a first vertical synchronization signal; refreshing and displaying an image frame in response to a second vertical synchronization signal; adjusting the first vertical synchronization signal, so that the adjusted first vertical synchronization signal is delayed by first delay time relative to the second vertical synchronization signal; and drawing one or more layers in response to the adjusted first vertical synchronization signal.