基于Matlab的TFT-LCD解码电路的仿真设计(含程序)(17300字)

摘要: TFT-LCD技术是微电子技术和 LCD技术巧妙结合的高新技术。TFT-LCD代表了一个新的技术时代，一个比CRT更加辉煌的时代。MATLAB语言和Simulink动态仿真集成环 境是面向理论分析研究和工程设计处理的一套具有强大功能的软件系统。它现已成为世界上应用最广泛的工程计算软件。它支持连续时间、离散时间及两者混合的线 性、非线性系统，也支持多个变量、多速率系统。所以它特别适用于对电子系统进行计算机仿真。解码是编码的逆过程，它的作用是将彩色全电视信号解调还原为 R、G、B三基色信号电压。解码电路在液晶显示器电路中具有极其重要的地位，是液晶显示器电路的灵魂。只有设计出较好的解码电路才能显示出优质的画面，充 分展现液晶显示器的优势。本文用 MATLAB 语言编程和用Simulink进行动态建模相结合的方法对TFT-LCD的解码电路进行仿真。

关键词: TFT-LCD ;解码;MATLAB; Simulink

Abstract: The technique of TFT-LCD is an advanced technique which comes from the technique of micro-electronics and LCD. The TFT- LCD represents a new technique ages which is more glorious than the ages of CRT .The language of MATLAB and the Simulink environment is a set of software system. The system faces to theories analysis and engineering design. And its function is very strong. Now it has become the most extensive engineering calculation software. It supports continuous time, discrete time, and line and unline system. So it is applicable to the imitation of the electronics system by computer specially. The function of decode is very important. Its function is changing the composite video signal into R G B signals. Here I imitate the decode circuit using MATLAB language and Simulink dynamic simulation. [毕业设计论文网 www.doc163.com]

Key words: TFT-LCD ; decode; MATLAB; Simulink

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目  录

1 绪论……………………………………………………………………………3

2 TFT-LCD及其解码电路的原理………………………………………………3

2.1液晶及TFT-LCD工作原理介绍……………………………………………3

2.2解码电路原理介绍…………………………………………………………8

2.2.1色信号的产生……………………………………………………………8 [毕业设计论文网 https://www.doc163.com]

2.2.2色信号的解码……………………………………………………………10

2.3解码芯片IR3Y31M介绍……………………………………………………11

3 MATLAB 软件介绍……………………………………………………………13

4基于MATLAB的TFT-LCD解码电路的仿真设计……………………………15

4.1产生彩色全电视信号………………………………………………………15

4.2亮色分离电路………………………………………………………………16

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4.3恢复同频同相的副载波信号………………………………………………17

4.4同步解调电路………………………………………………………………21

4.5三基色恢复电路……………………………………………………………22

5心得体会………………………………………………………………………23

参考文献…………………………………………………………………………24

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附录………………………………………………………………………………25

附录A 程序

附录 B  英文缩写对照表 [毕业设计论文网 Doc163.com]