noun
green screen (for chroma keying)
Wasei-eigo derived from English 'green back'. Used in film/video production for the physical green backdrop used in chroma key compositing.
wasei-eigo (Japanese-coined English), from green back
撮影スタジオには大きなグリーンバックが設置されていた。
A large green screen was set up in the filming studio.
noun
Direct loan from English 'greenback', referring to US paper currency. Less common than the chroma key sense in Japanese.
彼はポケットから何枚かのグリーンバックを取り出した。
He took out a few greenbacks from his pocket.