液晶显示器中LVDS系统的设计

文档编号:DQ350   文档字数:14574,页数:31

摘  要
 LVDS即低压差分信号传输，是一种满足当今高性能数据传输应用的新型技术。由于其可使系统供电电压低至 2V，因此它还能满足未来应用的需要，此外，这种低压摆幅可以降低功耗消散，同时具备差分传输的优点。LVDS 技术用于简单的线路驱动器和接收器物理层器件以及比较复杂的接口通信芯片组。LVDS 解决方案为设计人员解决高速 I/O 接口问题提供了新选择。 LVDS 为当今和未来的高带宽数据传输应用提供毫瓦每千兆位的方案。更先进的总线 LVDS (BLVDS)是在LVDS 基础上面发展起来的，总线 LVDS (BLVDS) 是基于 LVDS 技术的总线接口电路的一个新系列，专门用于实现多点电缆或背板应用。本设计就是对LVDS的信号介绍，LVDS的系统设计，还有就是实际应用中的实际问题的介绍。其中在LVDS的信号介绍中又讲述了LVDS信号传输组成，LVDS信号电平特性，差分信号抗噪特性。在LVDS这节中具体讲述了PCB板，板上导线，差分线，终端，未使用的管脚，媒质（电缆和连接器）选择，在噪声环境中提高可靠性设计的设计。最后简单介绍了LVDS在液晶显示器中的应用。
关键词: LVDS，差分信号，PCB，TTL

Abstract
LVDS (Low Voltage Differential Signaling) that the low-voltage differential signal transmission, is a meet today's high-performance data transfer applications of new technology. Because of its system can supply voltage as low as 2 V, so it can meet the needs of future applications, in addition, this low-voltage swing can reduce the power dissipation, along with the advantages of differential transmission. LVDS technology for the simple line driver and receiver physical layer devices and more complex interface communication chipsets. LVDS solutions for designers to solve high-speed I / O interface provides a new choice. LVDS for the current and future high-bandwidth data transfer applications milliwatts per Gigabit programmes. More advanced bus LVDS (BLVDS) is based in LVDS development of the above, the bus LVDS (BLVDS) LVDS technology is based on the bus interface circuits of a new series, devoted to the realization of multi-point cable or backplane applications . This is designed to introduce LVDS signal, LVDS system design, there is the practical application of the practical problems in the introduction. In the LVDS signals on the presentation and LVDS signal transmission components, LVDS signal level features, differential signal anti-noise characteristics. LVDS in this section elaborate on the PCB board, board wire, the differential lines, terminals, the unused pin, medium (cable and connectors) choice, in the noisy environment designed to improve reliability in the design. Finally a brief introduction of the LVDS LCD monitors in the application. Key words: LVDS, differential signal, PCB, TTL

目  录
摘  要 I
Abstract II
第1章 绪论 1
1.1液晶显示器的生产背景 1
1.2选题的意义 3
1.3本文的主要内容 4
1.4本文的组织结构 4
第2章 液晶显示器的制程 5
2.1MES站点介绍（Manufacturing   Execution  System） 5
2.2前段制程介绍 6
2.3后段制程 9
第3章 液晶显示器中LVDS系统的设计 11
3.1 LVDS介绍 11
3.2 LVDS信号介绍 12
3.2.1LVDS信号传输组成 12
3.2.2LVDS信号传输结构图 13
3.2.3 LVDS信号电平特性 13
3.2.4差分信号抗噪特性 14
3.3 LVDS系统设计 15
3.3.1 PCB板 16
3.3.2 板上导线 16
3.3.3差分线 17
3.3.4终端 18
3.3.5 未使用的管脚 18
3.3.6 媒质（电缆和连接器）选择 18
3.3.7 在噪声环境中提高可靠性设计 18
3.4实际应用中常见问题 19
3.4.1 PCB走线问题 19
3.4.2过孔问题 20
3.4.3 信号分发问题 20
3.5 LVDS交叉开关矩阵 21
3.6 LVDS在公司单板设计中的应用 22
3.7 LVDS与RS422/RS485的应用设计比较 23
第4章 总结 25
致 谢 26
参考文献 27

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