noun
calligraphic display device; directed beam display device
Technical computing term for a display that draws images by steering an electron beam directly, as opposed to raster scanning. Rare outside specialized engineering contexts.
有向ビーム表示装置は、ベクタースキャンディスプレイの一種です。
A directed beam display device is a type of vector scan display.
A more common English-derived term for the same technology; 有向ビーム表示装置 is a longer, more formal Japanese compound.
The contrasting display technology that scans in a fixed grid pattern, unlike the directed beam approach.
Compound of 有向 (directed) + ビーム (beam) + 表示 (display) + 装置 (device). A technical calque from English 'directed beam display device'.