Video data processing method, device and display device

Abstract

The present application provides a video data processing method, device, and display device. Before the first chip superimposes the video layer signal and the graphics layer signal to generate a video image signal, it first detects the transparency of the graphics layer corresponding to the graphics layer signal. And when it is detected that it is a transparent layer, then the instruction information instructing the second chip to perform motion compensation processing on the area where the graphics layer is superimposed in the video image signal and the video image signal are sent to the second chip together. In this way, the second chip will perform motion compensation processing on all the image areas corresponding to the video image signal according to the instruction information, and output the processed signal to the display screen for display, thereby effectively avoiding when the video image signal contains graphics layer When the signal is turned off, the quality of the display image will be reduced due to the motion compensation processing function being turned off.

Description

technical field [0001] The embodiments of the present application relate to display technologies. More specifically, it relates to a video data processing method, device and display device. Background technique [0002] At present, since the display device can provide users with playback images such as audio, video, and pictures, it has attracted widespread attention from users. In recent years, user demands on display devices are increasing day by day. For example, a user wants to watch high-definition cable television through a display device, and sometimes a user wants to watch Internet TV through a display device. [0003] The dual-hardware display device can meet the above-mentioned needs of the user at the same time. Usually, the dual-hardware display device includes two chips, which are the A chip (also called the first chip) and the N chip (also called the second chip). A chip is used to receive Internet TV. The video signal of the A chip can come from the networ...

AI Technical Summary

Problems solved by technology

However, if the HDMI video signal received by the N chip is a video layer signal superimposed with a channel information list, or is created by a third-party application program as an OSD (On Screen Display, screen menu adjustment method) graphics layer signal, if you continue Using motion compensation technology, the motion vector is the motion vector superimposed by the video signal and the graphics layer signal. In this way, the graphics layer signal in the motion compensation frame must have pixel movement compared with the graphics layer signal of the two frames before and after. It is usually a still picture, and the graphics layer picture will be torn at this time. Therefore, the N chip needs to turn off motion compensation at this time.

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