支援HDR10+或Dolby Vision的65吋以上4K OLED/Mini-LED電視，或高流明4K投影機。
在數位串流時代，代表著高達3840×2160解析度的超高清視聽服務，其細膩度是傳統1080P的四倍。而 IU集客影院 則是在此技術基礎上，結合了「社群集客」與「精準內容推薦」的新型態影音生態圈。 4k影院-iu集客影院
Imagine watching a nature documentary. On a standard screen, a tiger’s stripes look like paint. On , you see the individual hairs, the texture of the fur, and the reflection in its eyes. That is the difference between 2 million pixels (HD) and 8 million pixels (4K). you see the individual hairs