Current constraints in high-refresh 4K projection
Achieving native 4K at 240 Hz has traditionally relied on a four-input signal architecture. By splitting the image into four columns of 1024 × 2176 at 240 Hz, systems could maintain near one-frame latency — typically just under 5 ms — while avoiding the buffering associated with full-frame sequential processing. The downside was complexity: four synchronized inputs, tight bandwidth margins, and a dependency on graphics hardware capable of driving four high-speed outputs in lockstep.
Newer graphics interfaces can, in theory, transport 4K@240 Hz over a single cable. In practice, however, projector support for these interfaces is still limited, leaving multi-input architectures as the only viable option in real-world projection systems today.
With Norxe Unify, that reality is addressed differently.
Unify enables a three-column architecture using a custom resolution of 1364 × 2176 at 240 Hz per input. Three DisplayPort connections are used instead of four, resulting in a total active resolution of 4092 × 2176 at 240 Hz. Four pixels are intentionally left unused horizontally — a negligible and transparent trade-off that allows the signal path to be simplified without changing the fundamental timing model.
The three columns are combined into a single logical display using standard multi-display aggregation, eliminating the need for quad-input workflows. Latency remains near one frame, bandwidth headroom improves, and connector utilization drops.
Warping and blending can be handled either upstream or directly in the projector. Norxe projectors include built-in warp and blend capabilities operating at up to 240 Hz, further reducing reliance on external processing.
The result is a practical, balanced way to reach native 4K@240 Hz with today’s projector interfaces: fewer inputs, lower complexity, predictable timing, and greater flexibility—without compromising the low-latency behavior required for high-speed, motion-coupled simulation.