Differences Between DisplayPort Cable and HDMI Cable
DisplayPort从一开始就是为了液晶显示器的发展而开发的,采用“Micro-Packet Architecture”传输架构。视频内容以数据包的形式进行传输,这与DVI、HDMI数据线等视频传输技术有明显的不同。也就是说,HDMI线的出现取代了模拟信号视频。 DisplayPort 电缆或 mini DisplayPort 的出现取代了 DVI 和 VGA 接口。 mini displayport female 在物理特性方面,HDMI数据线和DP线在相同的基础设施和差分同轴双绞线上运行。两者都是采用高速低压差分信号来传输数据,但两者的相同点也仅此而已。 尽管这两个标准从外观上看非常相似,但在结构上却有很大不同。这些差异决定了链路的性能及其成本、兼容性、鲁棒性和易于执行性。 DP 电缆定义两个连接器:全尺寸和迷你。两种连接器都有 20 个引脚,但迷你连接器的宽度约为全尺寸的一半。它们的尺寸分别为 7.5mm x 4.5mm 和 16mm x 4.8mm。建立完整的链路需要 5 个同轴对、3 个单端信号以及电源线和地线。 DP线本身的可扩展性允许用更少的电线建立低带宽的DisplayPort连接,但很少有人这样做。这可能会给最终用户带来令人困惑的兼容性问题。

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