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Information scroll display method, device and system

A scrolling display and display area technology, applied in the direction of static indicators, instruments, etc., can solve the problem of limited number of scrolling display characters on the display screen, avoid different writing methods of fonts, solve the limited number of display characters, ensure efficiency and safety effect

Active Publication Date: 2021-01-19
XIAN NOVASTAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, an embodiment of the present invention proposes an information scrolling display method, an information scrolling display device, and an information scrolling display system to solve the problem of a limited number of characters in the scrolling information displayed on the display screen

Method used

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  • Information scroll display method, device and system
  • Information scroll display method, device and system
  • Information scroll display method, device and system

Examples

Experimental program
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no. 1 example

[0046] see figure 1 , the first embodiment of the present invention proposes an information scrolling display method. Such as figure 1 As shown, the information scrolling display method includes, for example, steps S11 to S17.

[0047] Step S11: read a plurality of fonts from the font library to obtain a font group;

[0048] Step S12: converting the writing method of each Chinese character font in the font group to obtain the converted font group;

[0049] Step S13: save the word module group after the conversion to a two-way circular linked list;

[0050] Step S14: based on the starting position of the pointer of the two-way circular linked list, read a fixed-length font string from the two-way circular linked list to obtain a first font string;

[0051] Step S15: writing the first character string into the content area of ​​the video memory, so that the display area of ​​the video memory can scroll and display the first character string, wherein the display area is locat...

no. 2 example

[0069] see Figure 12 , the second embodiment of the present invention provides an information scrolling display device. Such as Figure 12 As shown, the information scrolling display device 20 includes, for example, a font library reading module 21, a writing mode conversion module 22, a font group storage module 23, a font string reading module 24, a scrolling display module 25, an adjustment reading module 26 and a scrolling display module 25. Display module 27.

[0070] Wherein, the font library reading module 21 is used to read a plurality of fonts from the font library to obtain a font group. The writing method conversion module 22 is used to convert the writing method of each Chinese character font in the character module group to obtain the converted character module group. The font group saving module 23 is used for saving the converted font group to a two-way circular linked list. The font string reading module 24 is used for reading a fixed-length font string fr...

no. 3 example

[0073] see Figure 13 , the third embodiment of the present invention provides an information scrolling display method. Such as Figure 13 As shown, the information scrolling display method includes, for example, steps S31 to S36.

[0074] Step S31: read a plurality of fonts from the font library to obtain a font group;

[0075] Step S32: Write the font group into the two-way circular linked list according to the preset writing method, wherein the preset writing method is that each font is written from top to bottom within the width of a single character;

[0076] Step S33: based on the starting position of the pointer of the two-way circular linked list, read a fixed-length character string from the two-way circular linked list to obtain a first character string;

[0077] Step S34: Write the first character string into the content area of ​​the video memory, so that the display area of ​​the video memory can scroll and display the first character string, wherein the displa...

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Abstract

The invention relates to an information rolling display method, device and system. The method comprises the following steps: reading a plurality of matrixes from a matrix library to obtain a matrix set; converting the writing mode of each Chinese character matrix in the character module to obtain a converted character module; storing the converted word modules into a bidirectional cyclic linked list; reading a matrix string with a fixed length from the bidirectional cyclic linked list based on the pointer initial position of the bidirectional cyclic linked list to obtain a first matrix string;writing the first matrix string into a content area of a video memory so as to enable a display area of the video memory to display the first matrix string in a rolling manner; adjusting a pointer initial position of the bidirectional cyclic linked list, and reading a matrix string with a fixed length from the bidirectional cyclic linked list based on the adjusted pointer initial position to obtain a second matrix string; writing the second matrix string into the content area of the video memory, wherein the display area of the video memory displays the second matrix string in a rolling manner. The problem that the number of characters displayed on a display screen in an information rolling mode is limited is solved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an information scrolling display method, an information scrolling display device and an information scrolling display system. Background technique [0002] An OLED screen is a display screen made of organic light-emitting diodes (OLEDs). OLED screen has the advantages of high contrast, wide viewing angle, fast response speed, wide operating temperature range, simple structure and manufacturing process due to its organic electroluminescent diode, no need for backlight, etc. It has great application prospects in the future display field. [0003] The font scrolling of the OLED screen is generally hardware scrolling, that is, hard scrolling, which is mainly realized by the built-in function of the OLED screen driver chip. However, the hard scroll method can only realize the scrolling of 16 characters at most, and the display characters are limited, which cannot fully meet the dema...

Claims

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Application Information

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IPC IPC(8): G09G3/3208
CPCG09G3/3208
Inventor 周晶晶
Owner XIAN NOVASTAR TECH
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