World’s first true colour holographic display for smart glasses
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imec spinout Swave Photonics has demonstrated a prototype of the first true colour 3D holographic display technology using phase change materials.
The prototype display uses the Swave chip-based Holographic eXtended Reality (HXR) technology with the world’s smallest pixel to steer light and sculpt high-resolution images for full spatial colour.
The first application for Swave’s color HXR display technology will be energy efficient and lightweight smartglasses. Spatial color is advantageous for both indoor and outdoor use, making it the ideal color display for everyday wear.
The display delivers full spatial colour by arranging colour filters in a specific pattern on a single panel eliminating the need for three panels or fast switching speeds. This reduces visual artifacts, gives longer battery life and a more natural visual experience.
Swave’s spatial colour approach allows the human eye to perceive images naturally and is easier for the brain to process. It divides the panel into subpixel color regions with a unique pattern that is designed to simultaneously eliminate eye motion artifacts and optimize static image quality with a pixel pitch of less than 300nm.
Traditional displays currently use either three panels or time sequential approaches to form images in full colour. Three panel displays are expensive and bulky, and it is difficult to maintain optical alignment. Time sequential displays flash sequences of red, green and blue in succession to give the impression of full colour. This requires a rapid frame rate and increases power consumption.
“Swave’s early stage prototype holographic images were monochrome, allowing us to demonstrate proof of concept on this breakthrough technology,” said Mike Noonen, CEO of Swave. “The next step of developing HXR in full color is extremely challenging. Many technologies trick the human brain to form colors by rapidly sequencing different colors. Achieving simultaneous color brings us one step closer to recognizing the vision of reality-first augmented reality (AR) informed by AI in a compact form factor.”
“Swave is reinventing the way that color is shown and seen on a display,” said Edward Buckley, vice president of augmented reality solutions. “By employing a spatial color approach, Swave is able to provide a clear path towards all-day wearable, consumer grade AR. Swave’s holographic AR display is the only one which is matched to human vision and perception, making it easier on the eyes and brain while providing significant size, cost and power benefits.”
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