Video display method and device

Abstract

The embodiment of the invention provides a video display method and a video display device. The method comprises the following steps: computing the width and height of the video area with the width-to-height ratio of 4:3 and the width and height of the service area according to the output resolution, setting the output positions of the video area and the service area according to the width and height of the video area and the width and height of the service area; after analyzing the video data in the data stream transmitted by the head end, outputting the video data to the video area according to the width-to-height ratio of 4:3, and outputting the acquired sideband service data to the service area; and outputting stacked the video data of the video area and the service data of the service area to a television. The method and the device provided by the embodiment of the invention can eliminate the black border band area generated when converting the video from 4:3 to 16:9, and new service functions are added to the black border band area, thereby improving the user experience.

Description

technical field [0001] The present invention relates to the field of television, in particular to a video display method and device. Background technique [0002] The aspect ratio of the TV picture refers to the ratio of the width to the height of the TV image. At present, there are two main picture aspect ratios commonly used on TV screens: 4:3 and 16:9. Among them, the width and height used by standard definition TV The ratio is 4:3, and the aspect ratio used by high-definition television is 16:9. Since most of the streams sent by the head-end are currently in standard definition format, and high-definition TVs are gradually used in users' homes, therefore, a certain amount of image conversion is usually required when the set-top box outputs images. [0003] At present, there are mainly two methods for this image conversion, one of which is to output according to the original ratio, that is, the original image of 4:3 sent by the head end (such as Figure 1A shown) is stil...

AI Technical Summary

Problems solved by technology

However, this method of adding pictures simply solves the problem of black sidebands being visible to users. Although it ensures that the graphics are not distorted, simply filling pictures will inevitably make users feel monotonous during long-term use.

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