Method, device and system for playing webpage image-text in television

Abstract

The application discloses a method for playing a webpage image-text in a television. A DOM (document object model) tree of an HTML (hypertext markup language) document is traversed to obtain text nodes and image nodes in the DOM tree; according to a preset filtration policy, filtering away unwanted text nodes and image nodes, and reserving wanted text nodes and image nodes; resetting the reserved text nodes and image nodes, judging whether to-be-displayed content can be displayed in one screen of the television, and if so, according to the screen brightness of the television, dividing the to-be-displayed content into a plurality of HTML documents, wherein each document corresponds to a subpage and each subpage can be displayed in one screen; and finally, rendering the HTML documents into an image-text page, converting the image-text page to be in a picture format, converting the image-text page in the picture format to a PAL (phase alteration line) video signal of a program channel of the television, and playing the signal in the screen of the television. Furthermore, the application discloses a system for playing the webpage image-text in the television and a content publishing server.

Description

technical field [0001] The present application relates to television broadcasting technology and computer technology, in particular to a method, device and system for playing webpage graphics and text on television. Background technique [0002] As a traditional media, TV provided mainstream infotainment information before the 1990s. After entering 2000, with the popularization of the Internet and the emergence of smart phones in 2007, the development of the mobile Internet has been driven, allowing users to use computers or smart phones as terminals to obtain information through the Internet anytime, anywhere, fast and convenient. Taking a computer as an example, a Hypertext Markup Language (HTML) script is downloaded from the Internet through a WWW server, interpreted and rendered in a browser as a web interface, and the web interface can accept various responses from the user through mouse or keyboard input, such as Retrieve according to the input string, enter the corre...

AI Technical Summary

Problems solved by technology

Since the viewing distance of TV is far greater than that of mobile devices such as computers and mobile phones, the text size and picture size on web pages are not suitable for direct viewing on TV

[0010] 2. Problems caused by differences in refresh methods

[0012] The refreshment of the TV screen is determined by the TV station. The user cannot control it. It cannot be dragged horizontally. Scrolling down will affect the viewing effect of the audience, so it must be made in the form of multi-screen switching; at the same time, too much content cannot be displayed on the screen, otherwise , if the refresh interval is too short, it will be too late to watch, and if the refresh interval is too long, the user will feel bored

[0013] 3. Problems caused by differences in viewing habits

[0015] To sum up, due to the need to obtain information, both users and TV stations hope to display rich information content on the TV screen; however, it is not suitable to directly display the web content on the TV screen, and the content of the web page needs to be adjusted

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