Zeiss, Tesa, Saint-Gobain Sekurit and Hyundai Mobis form QuadAlliance to advance the mass-production of holographic windshield displays

Zeiss, Tesa, Saint-Gobain Sekurit and Hyundai Mobis have formed QuadAlliance, a comprehensive supply chain solution tailored for automotive OEMs to accelerate and streamline the mass production of holographic windshield displays (HWD).

The alliance combines expertise in concept design, holographic optical elements (HOE), windshield lamination and PGU/HMI integration to provide a one-stop solution that reduces time-to-market and improves reliability for OEMs.

Transforming windshields into smart interfaces

Modern intelligent vehicles face challenges such as important driving information being outside the driver’s line of sight, screen overload causing distractions, added hardware affecting energy efficiency and limitations on display size. The HWD solution addresses these issues by turning conventional windshields into smart, transparent infotainment interfaces, offering a more integrated and engaging in-car experience.

HWD offers an ultra-large, high-transparency display (>92% HOE transmittance) with flexible sizing, compact packaging and adaptable PGU placement for curved surfaces. It delivers superior brightness and clarity (>10,000 nit, RGB), supports 4K resolution and beyond and enhances safety, comfort and privacy with in-line-of-sight and dual eyebox designs. The system also improves efficiency through better light use, reduced weight and lower CO2 emissions.

Comprehensive supply chain solution for HWD industrialization

The QuadAlliance plans to begin mass production of HWD by 2029, leveraging the combined strengths of the four companies to accelerate innovation and time-to-market. While the alliance offers a fast and reliable path to high-performance HWD production, OEMs retain the flexibility to select their preferred supply chain model.

“Zeiss is a world leader in HOE development for precise light control. Previously, this holographic technology was limited to niche applications. However, over the past decade, we have achieved a ‘Gutenberg moment’ for HOE mastering and replication process, making holography ready for mass-market applications,” said Dr Roman Kleindienst, head of Zeiss Microoptics.

“Now, by driving the formation of a holographic ecosystem through the QuadAlliance, we aim to cultivate the best technology and supply chain synergy to streamline HWD industrialization. We believe mass production of holography will transform automotive displays, making advanced technology accessible to daily lives.”