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Display screen capable of being subjected to a scroll procedure

A display and process technology, applied in the direction of digital output to display devices, static indicators, cathode ray tube indicators, etc., can solve problems such as unsmooth scrolling

Inactive Publication Date: 2010-09-15
カナルプリュステクノロジーズ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the disadvantage that when the graphics system is slow, you will see a gradual drawing of each of the constituent graphics objects
[0013] The main problem with these two techniques is that in the first technique, when there is a clear scroll request, ready to display, as a result, there can be a certain time between the request and the actual scroll which is annoying to the user, the scroll is jerky ; in the second technique, although the latency problem does not exist, it may require a large amount of graphics memory, due to the size of the document
So more restrictive than a computer that can be 32 megabytes or 64 megabytes etc.

Method used

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  • Display screen capable of being subjected to a scroll procedure
  • Display screen capable of being subjected to a scroll procedure
  • Display screen capable of being subjected to a scroll procedure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] According to the invention, a method of displaying a document, such as an HTML page, on a display screen capable of scrolling processes consists of the steps of: cutting this document into areas that can be covered by a pixmap whose size depends on the size of the display area; and Provides the area of ​​the portion of the document that is expected to be actually covered by the pixmap.

[0041] This expected area forms a pixmap matrix covering the document, the visible portion and the closest band around this visible portion, in a way that prepares the content of the visible portion and the area that will be visible if the document is scrolled.

[0042] The purpose of the expected area is to improve the visual reproduction of operations that redraw parts of the document. In particular, displaying a copy of the intended area in the window is sufficient in most cases.

[0043] figure 1 Such an intended area 10 is shown, here formed by a pixmap 13 of 18 rows and 12 colum...

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PUM

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Abstract

The invention concerns a method for displaying a document (12) on a display screen capable of being subjected to a scroll procedure, comprising the following steps: providing the document with an amount of graphic memory to create a buffer memory of the visible part of the document and zones nearest to said visible part; calculating and cutting out into pixmaps said memory; relatively positioningsaid pixmaps with respect to the entire document and its visible part; filling up the content of the pixmaps, when the document is subjected to a display or scroll procedure, recopying the pixmap content in the display window; and repeating the relative positioning of the pixmaps with respect to the document.

Description

technical field [0001] The present invention relates to a method for displaying documents (such as HTML (Hypertext Markup Language) pages) on a display screen (such as a digital television screen) capable of scrolling progress. Background technique [0002] The field of the invention is in particular the display of HTML pages, as described in patent application EP 1 164 499 . [0003] The HTML standard version ("HEML 4.01 Specification W3C Recommendation 24 December 1999") can be found at the following Internet address: http: / / www.w3.org / TR / 1999 / REC-htmT401-19991224. [0004] An HTML page is a document that can be interpreted by a reading program to produce visual and possibly audio output on a computer monitor or television screen. HTML pages displayed on the screen usually consist of a main document and secondary documents that may contain graphic or sound elements or source code. [0005] To consider this HTML page, the HTML engine loads these documents, stores them in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/34
CPCG09G5/346G06F3/14G09G5/34
Inventor 让斯蒂芬·维勒斯
Owner カナルプリュステクノロジーズ