Synchronous display method and device, electronic device and storage medium

Active Publication Date: 2022-06-07
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Different screens use different crystal oscillators. If the time precision of the crystal oscillator is different, or the timing deviation of the crystal oscillator is different although the time precision of the crystal oscillator is the same, it may cause the time difference of receiving interrupt signals between different screens. The screen is refreshed, but the other screen is not refreshed, which causes the user to see the asynchronous display effect of the screen tearing on different screens or the display effect of the blurred screen

Method used

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  • Synchronous display method and device, electronic device and storage medium
  • Synchronous display method and device, electronic device and storage medium
  • Synchronous display method and device, electronic device and storage medium

Examples

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example 1

[0154] The key technology of this example is the synchronous refresh algorithm. This algorithm will count the extreme value of the interruption period of the vsync of screen 1 and screen 2 (corresponding to the extreme value of the actual generation period mentioned above), and predict the next screen 1 and screen 2 according to this information. The refresh interval (the difference in the generation time of the respective interrupt signals of the two screens), if the interval is too large, a certain frame of picture will be lost, and the refresh of the picture will be resumed after the interval returns to normal. Because the frame loss is 1-2 frames in a very short time, it can be ignored for 60 frames per second, and the user cannot perceive it. Vsync is an interrupt signal generated when the screen is refreshed. The screen is refreshed 60 times per second, that is, 60 vsync interrupt signals are generated.

[0155] This example provides a method for dual-screen synchronous ...

example 2

[0163] like Figure 10 As shown, when the display data is ready to be put into the display buffer area, the logic execution module (which can be a component of the aforementioned prediction module) obtains data (for example, the generation time of the interrupt signal) from the data acquisition module, and calculates the latest time between the two screens. V1n and V2n, and e1 and e2.

[0164] like Figure 11 shown, an update to this example screen repeats the following steps:

[0165] S1101: screen refresh generates vsync;

[0166] S1102: Which screen is recorded, the number of times the interrupt signal is generated in this recording time window, and the corresponding time value.

[0167] Figure 12 The flow chart of the logic execution module that provides the method for this example includes:

[0168] Step S1201: when the display data is ready to be put into the display buffer area, obtain the data from the data acquisition module;

[0169] Step S1202: Calculate the ...

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Abstract

The embodiment of the invention discloses a synchronous display method and device, electronic equipment and a storage medium. The synchronous display method provided by the embodiment of the present invention includes: recording the first generation time of the first interrupt signal of the first screen in the current refresh period, and recording the second generation time of the second interrupt signal of the second screen in the current refresh period. Generation time; based on the first generation time and the second generation time, predict the generation time difference between the first interrupt signal and the second interrupt signal in the next refresh cycle; if the generation time difference is not less than the time difference threshold , shielding the screen refresh of the first screen and / or the second screen in the next refresh period.

Description

technical field [0001] The present invention relates to the field of electronic technology, and in particular, to a synchronous display method and device, an electronic device and a storage medium. Background technique [0002] In order to meet the different needs of users, some electronic devices are provided with multiple display screens. In some scenarios, multiple display screens need to be displayed synchronously to expand the display area or display related content. [0003] When the screen is displayed, it is based on the image frame. For example, the screen refreshes the screen after receiving the interrupt signal (vsync) generated by the crystal oscillator. Different screens use different crystal oscillators. If the time precision of the crystal oscillator is different, or the time precision of the crystal oscillator is the same but the timing deviation of the crystal oscillator is different, the time difference between receiving the interrupt signal between differ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/14
CPCG06F3/1423G09G5/12
Inventor 齐志强
Owner ZTE CORP
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