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

Abstract

The invention relates to a VR display control method. The method comprises the steps of obtaining the action information of a user, and rendering the image data according to the action information, wherein the duration from the time when the action information of the user is obtained to the time when the image is rendered according to the action information is the preset duration; displaying according to the rendered image data, wherein the next action information of the user is acquired when the duration of displaying the next frame of image by the distance is the preset duration. According to the embodiment of the invention, a Vsync signal does not need to be equal, and the next action information of the user can be obtained, so that the time of obtaining the next action information of the user is advanced, namely, the time of rendering the image data according to the next action information of the user is advanced, and accordingly more time is provided for rendering the image data according to the next action information of the user before the end time of displaying the Nth frame of image.

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

Images