Method, device and non-transitory computer-readable medium for control of refresh frequency of display unit

A device is provided, comprising:

• a processor;
• a memory;
• and
• one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, the one or more programs including:
• a real-time frame composition frequency acquiring module, configured to acquire a frame composition frequency of image frames, wherein each of the image frames is composed from images rendered by various applications;
• a refresh frequency determining module, configured to determine a refresh frequency of the display unit based on the frame composition frequency, when the frame composition frequency is less than a preset maximum refresh frequency;
• and
• a display unit refreshing module, configured to refresh a screen of the display unit at the determined refresh frequency;
• wherein the real-time frame composition frequency acquiring module is further configured to:
• acquire time taken by the processor to complete composition of each of N successive image frames displayed immediately before performing the acquiring operation;
• and determine the frame composition frequency of the image frames according to the following formula:
• S
• =
• 1
• /
• ∑
• i
• =
• 1
• N
• ⁢
• ⁢
• (
• T
• i
• /
• N
• )
• ,
• where S is the frame composition frequency of the image frames, and Ti is time taken by the processor to complete composition of an i-th image frame among the N successive image frames displayed immediately before performing the acquiring operation.

A non-transitory computer-readable storage medium for storing computer executable instructions, the computer executable instructions being used to control a processor to execute a method for control of a refresh frequency of a display unit, the display unit being in communication with the processor and configured to display image frames processed by the processor on a screen of the display unit, the method comprising:

• acquiring a frame composition frequency of image frames, wherein each of the image frames is composed from images rendered by various applications;
• determining a refresh frequency of the display unit based on the frame composition frequency, when the the frame composition frequency is less than a preset maximum refresh frequency;
• and
• refreshing a screen of the display unit at the determined refresh frequency
• wherein acquiring the frame composition frequency of image frames comprises:
• acquiring time taken by the processor to complete composition of each of N successive image frames displayed immediately before performing the acquiring operation;
• and
• determining the frame composition frequency of the image frames according to the following formula:
• S
• =
• 1
• /
• ∑
• i
• =
• 1
• N
• ⁢
• ⁢
• (
• T
• i
• /
• N
• )
• ,
• where S is the frame composition frequency of the image frames, and Ti is time taken by the processor to complete composition of an i-th image frame among the N successive image frames displayed immediately before performing the acquiring operation.