US 12,341,921 B2
Display method and electronic device
Mengzheng Hua, Wuhan (CN); Gang Li, Wuhan (CN); Xiaofei Zhong, Wuhan (CN); Cheng Luo, Wuhan (CN); and Xiong Shen, Xi'an (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Appl. No. 18/249,802
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
PCT Filed Aug. 31, 2021, PCT No. PCT/CN2021/115675
§ 371(c)(1), (2) Date Apr. 20, 2023,
PCT Pub. No. WO2022/083296, PCT Pub. Date Apr. 28, 2022.
Claims priority of application No. 202011141940.4 (CN), filed on Oct. 22, 2020.
Prior Publication US 2023/0388405 A1, Nov. 30, 2023
Int. Cl. H04M 1/72412 (2021.01); G06F 3/14 (2006.01); H04M 1/72427 (2021.01)
CPC H04M 1/72412 (2021.01) [G06F 3/1454 (2013.01); H04M 1/72427 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A method, wherein the method comprises:
establishing, by a first device, a connection for multi-screen collaboration to a second device;
receiving, by the first device, a first event, wherein the first event triggers the first device to turn off a screen;
turning off, by the first device, the screen in response to the first event;
receiving, by the first device, a second event, wherein the second event triggers drawing and synthesis of screen content of the first device to be displayed on the second device;
drawing, by the first device, the screen content based on a first software signal in response to the second event, to obtain a screen content drawing result;
synthesizing, by the first device, the screen content drawing result based on a second software signal, to obtain a screen content synthesis result, wherein the first software signal and the second software signal are software synchronization signals that are generated by a same software signal source in the first device and that have a same cycle;
sending, by the first device, the screen content synthesis result to the second device; and
after turning off the screen, turning off, by the first device, a hardware signal source, wherein the hardware signal source generates a hardware signal for adjusting a cycle of the first software signal and a cycle of the second software signal.