Upscaling
The 4K resolution of 3840 × 2160 simplifies video scaling from the popular high definition source formats 720p and 1080p. A 1080p video source can be scaled perfectly by simply doubling each pixel horizontally and vertically, using 4 pixels on the 4K display to represent each pixel from the 1080p source. Similarly, a 720p source pixel can be tripled horizontally and vertically, using 9 pixels on the 4K display for each pixel from the 720p source. The 720p and 1080p resolutions will also evenly divide the 8K resolution of 7680 × 4320.
Super Hi-Vision specifications:
- Number of pixels: 7680 × 4320
- Aspect ratio: 16:9
- Viewing distance: 0.75 H
- Viewing angle: 100°
- Colorimetry: Rec. 2020
- Frame rate: 120 Hz progressive
- Bit depth: 10/12 bit
- Audio system: 22.2 surround sound
- Sampling rate: 48/96 kHz
- Bit length: 16/20/24 bit
- Number of channels: 24 ch
- Upper layer: 9 ch
- Middle layer: 10 ch
- Lower layer: 3 ch
- LFE: 2 ch
Read more about this topic: Ultra High Definition Television