Erhan Ercan | Morphotonics: Can roll-to-plate nanoimprint lithography achieve sub-50nm resolution over Gen 5 glass substrates in under 90 seconds?
00:02:40.000 - 00:04:16.500
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Can roll-to-plate nanoimprint lithography achieve sub-50nm resolution over Gen 5 glass substrates in under 90 seconds?
Scaling nanoimprint lithography (NIL) beyond standard wafer sizes is a significant bottleneck in manufacturing next-generation optical displays. Traditional semiconductor lithography processes struggle with the throughput demands and cost-efficiency required for large-area display integrations. The roll-to-plate (R2P) method addresses this by leveraging flexible polymer stamps on a rigid substrate carrier, bypassing traditional step-and-repeat limitations.
This roll-to-plate mechanism works by dispensing a solvent-free UV-curable resin onto the substrate, which is then dynamically conformed to an inverse-copy flexible polymer stamp via precision rollers. This architecture achieves sub-50 nm feature replication up to Gen 5 sizes (1.1 x 1.5 meters) with picometer-range dimensional stability. The non-continuous, roll-and-rewind technique optimizes replication fidelity while maintaining high spatial uniformity across the entire panel.
By achieving a rapid 90-second cycle time on a Gen 5 footprint, this approach significantly reduces the cost of nano-patterned elements. When applied to smartphone-sized displays, the cost of the printed optical feature drops below $0.50. This establishes a highly scalable manufacturing route for integrating advanced nanostructures, such as polarization optics or diffractive elements, directly into high-volume consumer display panels.
In this short video, you can learn:
* The mechanics of roll-to-plate UV-nanoimprint lithography and flexible stamp reuse.
* Replicating optical features from 500 microns down to 50 nanometers on Gen 5 substrates.
* Throughput and cost analysis showcasing sub-$0.50 manufacturing costs per smartphone display.
š **Clip Abstract** This clip introduces Morphotonics' unique roll-to-plate nanoimprint technology designed to scale sub-50nm optical features up to Gen 5 sizes. It explains the mechanics of using flexible stamps with UV-curable resins to achieve rapid cycle times and extremely low production costs.
#RollToPlateNIL, #NanoimprintLithography, #FlexiblePolymerStamps, #Sub50nmLithography, #DiffractiveOpticalElements, #ARDisplayOptics
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00:06:13.300 - 00:07:48.200
How do you scale a single wafer-scale AR waveguide master into hundreds of copies on a single panel without losing nanometer-scale angular fidelity?
How do you scale a single wafer-scale AR waveguide master into hundreds of copies on a single panel without losing nanometer-scale angular fidelity?
The fabrication of diffractive waveguides for augmented reality (AR) glasses presents severe scaling challenges. AR optical designs rely on complex grating structures, including slanted, binary, and blazed profiles, to guide light from the projector to the eye. Replicating these sensitive geometries over large surfaces typically risks dimensional distortion, which degrades the modular transfer function (MTF) and color uniformity of the final waveguide display.
Through a collaborative industry consortium, a single wafer-scale master was successfully scaled up using high-fidelity master-tiling processes. By leveraging dimensionally stable flexible stamps, Morphotonics printed 120 AR waveguides simultaneously on a Gen 3.5 substrate. The process is further scalable to Gen 5, enabling the simultaneous patterning of up to 270 waveguides in a single, high-throughput imprinting cycle.
This scalable master-tiling and replication approach is a critical step toward lowering the cost barriers for consumer-grade AR glasses. By employing custom-formulated high refractive index resins, the process delivers high yield and extreme cost efficiency. It establishes a viable pathway for manufacturing tens of millions of high-performance AR waveguides annually.
In this short video, you can learn:
* Scaling diffractive AR waveguides from single masters to massive multi-die arrays.
* Replicating complex surface-relief gratings, including slanted, binary, and blazed structures.
* The commercial and yield advantages of patterning up to 270 waveguides in a single Gen 5 cycle.
š **Clip Abstract** This clip details the cooperative effort to upscale a single AR waveguide design into 120 and 270 copies per panel on Gen 3.5 and Gen 5 systems, respectively. The presentation highlights the ability of flexible stamp technology to maintain high fidelity across slanted and blazed gratings for high-volume AR glasses.
#NanoimprintLithography, #MasterTiling, #HighRefractiveIndexResins, #DiffractiveWaveguides, #AugmentedRealityOptics, #DisplayManufacturing
00:07:48.200 - 00:09:33.500
Can large-area micro-lens arrays (MLAs) solve the power efficiency and beam-shaping bottlenecks of next-generation MicroLED displays?
Can large-area micro-lens arrays (MLAs) solve the power efficiency and beam-shaping bottlenecks of next-generation MicroLED displays?
For MicroLED and MiniLED displays, light extraction and beam shaping represent fundamental limits to power efficiency and visual quality. Traditional flat LED emitters exhibit high internal reflection losses and wide emission angles, which cause optical crosstalk and reduce peak luminance. Integrating pixel-level micro-lens arrays (MLAs) directly over the emitters solves this by narrowing the output beam profile and maximizing outcoupling efficiency.
For MicroLEDs, the addition of MLAs enables pixel-level beam collimation and matching with AR waveguides or projection optics, substantially lowering battery consumption in smart glasses. In MiniLED backlights, MLAs improve spatial light uniformity and local dimming capabilities while allowing a thinner backlight unit (BLU) stack. To realize these advantages, display makers require high-volume, low-cost methods to align and print micro-lenses across large panel dimensions.
Morphotonics applies its large-area nanoimprinting process to scale these MLA architectures from wafer-level masters up to Gen 5 glass panels. By maintaining precise spatial uniformity and controlling residual layer thickness (RLT) across the entire substrate, the process delivers uniform focal lengths for billions of micro-lenses. This bridges the gap between laboratory-scale display performance and cost-competitive, large-scale consumer display manufacturing.
In this short video, you can learn:
* Pixel-level beam collimation and matching benefits of MLAs in MicroLED and MiniLED architectures.
* Reducing display stack thickness and improving local dimming uniformity using integrated micro-optics.
* Techniques for upscaling wafer-level MLA masters to Gen 5 sheets with thin residual layer control.
š **Clip Abstract** This clip outlines the optical benefits of integrating micro-lens arrays on MicroLED and MiniLED displays to enhance light outcoupling, collimation, and power efficiency. It demonstrates how large-area nanoimprint lithography makes high-density MLA integration commercially viable for both AR glasses and large-screen displays.
#MicroLensArrays, #NanoimprintLithography, #LightOutcoupling, #MicroLEDDisplays, #AugmentedRealityOptics, #DisplayManufacturing