A comfortable viewing distance is usually between the THX-style immersive distance and the SMPTE-style cinema distance. Larger screens and lower resolution projectors usually require a longer seating distance.

Yes. A 4K projector has higher pixel density than 1080P, so viewers can sit closer to a large screen while maintaining a smooth image.

THX distance is based on a more immersive viewing angle, often suitable for dedicated home theater rooms where viewers want a cinematic experience.

SMPTE distance is based on a slightly wider seating recommendation and is often used as a comfortable cinema viewing reference.

Yes. The same diagonal size can have different screen widths depending on aspect ratio. Since viewing distance is strongly related to screen width, aspect ratio matters.