Extended display identification data:
Extended display identification data (EDID) is a data structure provided by a digital display to describe its capabilities to a video source (e.g. graphics card or set-top box). It is what enables a modern personal computer to know what kinds of monitors are connected to it.
en.wikipedia.org
EDID:
延伸顯示能力識別（Extended display identification data，簡稱EDID）是指螢幕解析度的資料，包括廠商名稱與序號。
zh.wikipedia.org
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Extended display identification dataEDID