Nano-imprint lithography of titania-based metaoptics

METAPRINT aims to revolutionize AR smart-glasses by using nano-imprint lithography for efficient, cost-effective production of advanced photonic metasurfaces that enhance display performance.

Subsidie
€ 2.473.250
2025

Projectdetails

Introduction

METAPRINT "Nano-imprint lithography of titania-based metaoptics" targets the nano-fabrication of near-eye displays for augmented reality (AR) smart-glasses by direct printing hard ceramics (e.g. TiO2). It will deliver Photonic Metasurfaces capable of redirecting virtual images from a microdisplay to the eyes.

Technology Overview

SOLNIL's patented technology leverages:

  1. Printable Inks: Based on sol-gel chemistry, delivering a superior TiO2 material with a record high refractive index (up to 2.7) and transparency to increase the field of view of the virtual images by 40% compared to current offers.
  2. Deposition Process: Spin- or dip-coating performed at room temperature and pressure, avoiding slow and costly ultra-high vacuum approaches currently used for TiO2, such as atomic layer deposition.
  3. Direct Printing Method: Liquid inks are used to produce 3D patterns, avoiding toxic resists for lithography, lift-off steps, and etching steps.

Cost Efficiency

Beyond the superior performances of our material, we provide a massive reduction of both CapEx (over 50 times) and CoO (over 4 times) compared to the incumbent top-down lithographic methods.

Market Position

SOLNIL has the freedom to operate in this field and is already servicing several leading actors in the AR market by providing technology for near-eye displays based on diffractive waveguides, which is currently the leading method.

Project Goals

METAPRINT will go beyond this common approach by adopting Photonic Metasurfaces to:

  1. Enhance light management efficiency (extending battery lifetime).
  2. Improve spatial resolution of the virtual images.
  3. Increase color brightness.

Pilot Production

METAPRINT will showcase the viability of our approach by building a pilot production line of near-eye displays over 200 mm flat wafers and on 100 mm curved ones. This will help define their performances and reproducibility and estimate the costs of the process.

Commercial Strategy

The commercial goal is to license this technology either to our existing customers or to new ones scouted through the action.

Financiële details & Tijdlijn

Financiële details

Subsidiebedrag€ 2.473.250
Totale projectbegroting€ 2.473.250

Tijdlijn

Startdatum1-3-2025
Einddatum29-2-2028
Subsidiejaar2025

Partners & Locaties

Projectpartners

  • SOLNILpenvoerder

Land(en)

France

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