3840x2160

3840x2160 is a display resolution with 8,294,400 total pixels and a 16:9 aspect ratio. It is widely marketed as 4K UHD, the consumer-oriented standard that provides roughly four times the pixel count of 1920x1080 (1080p).

Applications for this resolution are widespread in consumer electronics. It is the default resolution for most modern televisions and computer monitors, and many streaming services offer 4K content at this size. UHD Blu-ray discs use 3840x2160, and many 4K streams are delivered with High Dynamic Range and wider color gamuts to enhance contrast and color accuracy.

The 3840x2160 frame is distinct from DCI 4K, which uses 4096x2160 for digital cinema and has a slightly different aspect ratio. The UHD standard prioritizes compatibility with home viewing, 16:9 screens, and consumer content delivery, whereas cinema 4K serves professional cinema workflows and projection systems.

Technical considerations include how screen size and viewing distance affect perceived sharpness, since pixel density varies with display size. Content may be encoded in wide color spaces such as Rec.2020 or DCI-P3 and can use HDR formats like HDR10 or Dolby Vision. To display 3840x2160 at the intended quality, devices typically require compatible HDMI/HDCP capabilities and sufficient bandwidth, especially for high frame rates or HDR.

Overall, 3840x2160 serves as the mainstream consumer 4K standard, balancing high resolution with practical compatibility across entertainment, gaming, and productivity devices.