The HUD Comparison: MicroLED vs. LCoS Displays in 2026 Frames

Heads-up display (HUD) technology in AI eyewear uses one of two primary light engine approaches: MicroLED (used in Even Realities G2) and LCoS (Liquid Crystal on Silicon, used in Viture Luma Pro). Each has distinct advantages in brightness, color accuracy, power consumption, and manufacturing complexity.

MicroLED uses self-emissive pixels — each pixel generates its own light, similar to OLED but using inorganic gallium nitride LEDs. This enables extremely high peak brightness (3,000 nits in the G2) and perfect black levels. The G2's MicroLED panel measures 0.13" diagonal with a pixel pitch of 4μm.

LCoS uses a reflective liquid crystal panel illuminated by a laser or LED light source. The Viture Luma Pro uses a green laser illuminator (532nm) with a polarizing beam splitter. LCoS achieves superior color accuracy (ΔE < 1.5 vs MicroLED's ΔE < 2.8) but is limited by the efficiency of the optical path.

Both display technologies must couple light into a waveguide — a transparent optical element that guides light from the display engine to the user's eye while allowing the real world to be seen through it. Waveguide efficiency is the percentage of display light that reaches the eye.

The G2's diffractive waveguide achieves 85% transmission efficiency — among the highest in consumer eyewear. At 3,000 nits source brightness, the user receives approximately 2,550 nits at the eye. Our photometric measurements confirm readability up to 80,000 lux ambient (direct sunlight is approximately 100,000 lux).

The Viture Luma Pro's holographic waveguide achieves 72% efficiency, delivering approximately 864 nits at the eye from its 1,200 nit source. This is adequate for indoor use and overcast outdoor conditions (up to approximately 20,000 lux) but becomes unreadable in direct sunlight.