VR display control method, VR display control device and display device

Abstract

The present disclosure relates to a VR display control method, including: acquiring user's action information; rendering image data according to the action information, wherein, from the initial moment of acquiring the user's action information to rendering the image according to the action information The duration of the starting moment is a preset duration; display is performed according to the rendered image data; wherein, when the duration of displaying the next frame image is the preset duration, the user's next action information is obtained. The embodiments of the present disclosure can start to acquire the user's next action information without waiting for the arrival of the Vsync signal, so the time to acquire the user's next action information is advanced, and the image data is processed according to the user's next action information in advance. The moment of rendering, so that there is more time to render the image data according to the next action information of the user before the end moment of displaying the image of the Nth frame.

Description

technical field [0001] The present disclosure relates to the field of display technology, and in particular, to a VR display control method, a VR display control device, and a display device. Background technique [0002] For current VR (virtual reality, virtual reality) devices, delay is one of the main factors affecting user experience. The delay referred to here is Motion-To-Photon Latency, which refers to the process from obtaining the actions performed by the user to The time it takes to display the image corresponding to the action on the screen, referred to as MTP delay. [0003] For split-type VR devices, it generally includes two parts: a VR helmet and a computer host. On the one hand, the VR helmet can sense the user's actions, and on the other hand, it can display images through the screen, but the operation of rendering image data needs to be completed by the computer host. The specific process is as follows: [0004] The VR helmet senses the user's motion and ...

AI Technical Summary

Problems solved by technology

[0007] However, the problem with the above process is that it takes a long time for the CPU and GPU to perform corresponding operations. For example, the GPU fails to complete the rendering of the image during the time period when the N-1 frame image is displayed on the screen. The rendering of the image is completed within the time period of displaying the image of the Nth frame

[0010] At present, the MTP delay that can be accepted by most users is 20 milliseconds, and based on figure 2 For the timing shown, take the screen refresh rate of 90Hz in a conventional VR helmet as an example, then the MTP delay is the duration of two frames, that is, 2×1000 / 90=22.2 milliseconds, which is greater than 20 milliseconds, so it will affect most users. Use experience, causing the user to feel dizzy and nauseous

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