那塊螢幕的形狀
這一支講的是實體：一台機器、一塊面板，本身就是那個長方形。
adjective · B1
Used about a television or computer screen whose picture area is much wider than it is tall, so the shape is a long, low rectangle.
寬螢幕的
核心畫面
One way to hold this word: hold your hands up in front of your face and slide them apart sideways. That long, low is the whole word. Everything else follows from it: a machine can have that shape, a film can be made to fit that shape, and a sentence can say that something was done in that shape.
可以把 widescreen 想成用兩隻手在臉前面往左右拉開的那個長方形：又寬又扁，橫的比直的多很多。這個字說到底就…更多收起
可以把 widescreen 想成用兩隻手在臉前面往左右拉開的那個長方形：又寬又扁，橫的比直的多很多。這個字說到底就只有這一個形狀。剩下的差別只是「誰是那個形狀」——機器是那個形狀、片子照那個形狀做、或者某件事是用那個形狀完成的。From the word’s history
The word is simply wide plus screen, so the name already contains the picture: a screen that is wide.
這個字就是 wide（寬）加 screen（螢幕）拼起來的。名字本身已經把畫面講完了：一塊寬的螢幕。
Wiktionary (kaikki extract) entry 'widescreen': From wide + screen. source_ref kaikki:3f6f69a190036ae4:1036145714:3118
Two branches
照那個形狀做出來的內容
形狀從硬體轉到畫面：不是螢幕寬，而是片子一開始就照著寬的比例拍。
adjective · B2
Used about a film or programme that was made to be shown on a screen much wider than it is tall, rather than on a nearly square one.
寬螢幕規格的