Transparent display startup Ceres Holographics has demonstrated what it claims is the first in-plane heads-up display (HUD) with multiple, separate transparent displays in one automotive windshield.
On the HUD, each display measures up to 400 mm by 300 mm and contains programmed holographic optical element (HOE). This results in what Ceres claims is the automotive industry’s largest field of view HUD.
The capability can be achieved using only holography using the ability to direct and manipulate light outside the normal confines of reflection and diffractive optics, Ceres said. Each of the displays can be configured at specific viewing angles so a windshield could display information, content or entertainment for each intended user. This is done without obscuring the road for the driver.
The holographic HUD was demonstrated at the Driving Vision News Interior Workshop and Ceres plans to use its HoloFlekt 1,400 mm wide roll-to-roll manufacturing machinery to produce the holographic HUD with a photopolymer film in a stack for automotive manufacturing.
These machines produce HOEs in a single piece of windshield sided film with the final film laminated inside the windshield ready for car inclusion. It is then coupled with compact projection units to produce full color, wide field of view transparent HUD.
How it could work
Ceres said the three-display holographic windshield could be configured for both the driver and passenger.
The first display could be configured to the driver to see operational information in a non-distracting way. Safety alerts and situational information could then be projected on the second display also for the driver. The third display would be for the passenger; acting as a connected screen for entertainment, work or destination content.
The HUD allows for customization and reformatting of the displays based on what an OEM would want for its own vehicles, Ceres said.
