LED仍然是工業(yè)測(cè)量和過程控制系統(tǒng)中最符合人體工程學(xué)的顯示類型

　　本文闡述了在工業(yè)測(cè)量和過程通過引用具體的產(chǎn)品可以通過廠家的Digi-Key控制系統(tǒng)LED的使用。這包括一些基本類型的LED元件（單LED指示燈，多分段桿和字母數(shù)字顯示器），可能用于原始設(shè)備設(shè)計(jì)（從綠森、光寶、和Avago）和一個(gè)準(zhǔn)備去顯示解決方案從矩陣軌道。

　　LED顯示屏介紹與背景透視

　　很少有人反對(duì)LED是無處不在設(shè)備的前提，但自從第一次可見光LED問世以來，他們?cè)谶^去的50年里走過了漫長(zhǎng)的道路。多年來，LED僅用于指示燈。他們主要是紅色的，雖然綠色和黃色的版本后來流行，允許停止，去，并警告意味著歸因于他們的使用。雖然led可以與電源供電設(shè)備中的霓虹燈指示器相競(jìng)爭(zhēng)，但幾乎可以肯定的是，它們能夠在較低的電壓下工作，有助于廣泛應(yīng)用于各種電子系統(tǒng)，從專業(yè)設(shè)備到消費(fèi)產(chǎn)品。相對(duì)而言，LED也是低功率器件，因此它們也受到電池供電設(shè)計(jì)的青睞。

　　Single LEDs were essentially status or threshold indicators， i.e. on/off or “l(fā)ow battery”， but their ease of use quickly saw applications where multiple LEDs were arranged to provide displays mimicking analog meters or thermometer-style gauges， such as volume or recording level indicators in consumer audio equipment. In some instances， there was a novelty aspect to such designs as the coarse granularity of their measurement hardly compares with the meters or gauges they replace. Where they often win out is in providing a bold， bright， easy to read display when absolute accuracy or greater resolution is not required. Equally， the intrinsically rugged nature of solid-state LED technology suited portable applications， where delicate analog meters could be easily damaged and therefore prove unreliable.