A system and method for setting up LCD TV DDR and VBYONE spread spectrum

An LCD TV, spread spectrum technology, applied in the parts of the TV system, the parts of the color TV, the TV, etc., can solve the electromagnetic radiation interference and other problems, and achieve the effect of improving production efficiency, not easy to make mistakes, and convenient for factory debugging.

Active Publication Date: 2019-11-12
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to propose a system and method for setting up LCD TV DDR and VBYONE spread spectrum, to solve the problem of electromagnetic radiation interference when using screen modules of different sizes and different manufacturers

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  • A system and method for setting up LCD TV DDR and VBYONE spread spectrum

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Embodiment Construction

[0029] The present invention aims to provide a system and method for setting up DDR and VBYONE spread spectrum of LCD TVs, so as to solve the problem of electromagnetic radiation interference when screen modules of different sizes and manufacturers are used.

[0030] The setting system of LCD TV DDR and VBYONE spread spectrum among the present invention comprises:

[0031] The menu display module is used to display in the factory menu of the LCD TV: DDR spread spectrum frequency option, DDR spread spectrum step size option, VBYONE spread spectrum frequency option, VBYONE spread spectrum step size option;

[0032] The menu option value reading module is used to read the set value of the DDR spread spectrum frequency option, DDR spread spectrum step size option, VBYONE spread spectrum frequency option, and VBYONE spread spectrum step size option in the menu;

[0033] The spread spectrum information search module is used to find the spread spectrum register value corresponding to...

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Abstract

The invention relates to the field of liquid crystal televisions, and discloses a system and method for setting DDR and VBYONE spread frequency of liquid crystal televisions, which solves the problem of electromagnetic radiation interference when screen modules of different sizes and manufacturers are used. The setting method in the present invention includes: presetting the spread spectrum option menu in the LCD TV factory menu; prefabricating the spread spectrum information database, and setting the mapping relationship between each spread spectrum option and the corresponding register; obtaining the spread spectrum option menu in the current LCD TV factory menu. In the spread frequency information database, according to the mapping relationship, find the spread frequency register value corresponding to the spread frequency option setting value in the current factory menu; use the obtained spread frequency register value to calculate the spread frequency and The step size register is set.

Description

technical field [0001] The invention relates to the field of liquid crystal televisions, in particular to a system and method for setting DDR and VBYONE spread frequency of liquid crystal televisions. Background technique [0002] With the continuous development of LCD TVs, there are more and more resource states of screen modules. A series of LCD TVs using the same chip solution usually includes TVs of multiple sizes, and screen modules from different manufacturers are also used. Each screen The electromagnetic radiation interference intensity of different screen modules is different, and the requirements for the spread frequency range of the VBYONE signal allowed by the screen specification are also different. In order to make the electromagnetic radiation interference when using different screen modules meet the standard requirements, it is necessary to adjust the Spread spectrum frequency and step size of DDR and VBYONE are set. Contents of the invention [0003] The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/445H04N5/217
CPCH04N21/47H04N23/81
Inventor 黄锡军
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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