A method and electronic device for maintaining content displayed on a screen

Abstract

The present application provides a method for maintaining screen display content and an electronic device. The method includes: in the first mode of the electronic device, if the screen controller detects that the screen of the electronic device enters the first state, sending a message to the embedded controller instruction information, and lock the first state, and no longer respond to the first command sent by the graphics processor; after the embedded controller receives the instruction information, if it receives the second command, it will feed back a response message to the screen controller, and the second The command is used to make the electronic device enter the second mode; when the screen controller receives the response message, the screen of the electronic device is kept locked in the first state, so that the screen of the electronic device keeps displaying content. According to the present application, if the electronic device enters a low power consumption state such as sleep or dormancy after entering the second mode, the screen controller does not respond to the first command sent by the graphics processor to exit the first state, and the screen of the electronic device remains displayed. Content, not black screen.

Description

technical field [0001] The invention relates to the technical field of screen display, in particular to a method for maintaining screen display content and electronic equipment. Background technique [0002] PSR technology is a screen self-refresh technology. When the picture on the screen of an electronic device is static, the content of the picture will be copied to a chip with low power consumption and small storage, and then the screen will use the data here to automatically refresh the picture. At this time , the GPU and memory can "take a short break", thereby reducing the power consumption of electronic devices. [0003] S0i-L mode is a mode implemented on a platform that supports PSR technology. In S0i-L mode, when the electronic device is idle, if the user does not operate the mouse, keyboard, etc., and the screen display is in a static picture, Then let the electronic device enter a low-power state such as sleep or hibernation, but keep the screen still displaying...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a method and electronic equipment for maintaining the content displayed on the screen to solve the problem in the prior art that when the system enters a low-power sleep mode, the GPU will first let the screen exit the PSR state. At this time, the screen cannot If the previous display content is kept, the backlight of the screen will always be on, but the black screen will be displayed. The technical solution is as follows:

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