Company Profile · Semiconductors · New York
Lumiode.
The New York startup putting the transistor backplane and the LEDs on a single wafer - and chasing the brightness augmented reality has always needed.
The New York startup putting the transistor backplane and the LEDs on a single wafer - and chasing the brightness augmented reality has always needed.
Augmented reality keeps stumbling on the same wall: the screens are too dim, too power-hungry, or too big. Lumiode, a fabless semiconductor company founded in 2012 as a spinout of Columbia University, spent more than a decade attacking that wall at the level of the wafer.
Most microdisplay makers build brightness by assembly - manufacturing an LED layer and a transistor backplane separately, then bonding the two wafers together. Lumiode took a harder route. Its engineers deposit a low-temperature polycrystalline silicon (LTPS) thin-film-transistor backplane directly onto the LED epiwafer. The result is what the company calls a "truly-monolithic" micro-LED microdisplay: the pixels and the circuitry that drives them grow on one piece of silicon, with no bonding step in between.
The payoff is measured in nits, the unit of luminance. Lumiode has demonstrated prototypes reaching roughly one million nits, with a stated path toward more than ten million. For context, a bright smartphone tops out near one to two thousand. That headroom is exactly what a heads-up display or a pair of AR glasses needs to stay readable against a noon sky.
The company is deliberately small - about five people - and deliberately narrow. It does not run its own fab. It owns the process chemistry and the intellectual property, and it partners with manufacturers to put that process on a production line. In 2024, digital-signage firm STRATACACHE announced it was integrating Lumiode's backplane deposition technology into its emerging micro-LED facility in Eugene, Oregon.
That IP-first strategy shaped the ending. In December 2025, Taiwan's PlayNitride - one of the larger names in micro-LED - agreed to acquire Lumiode for two million dollars in cash, folding the New York company's monolithic playbook into its own. For a deep-tech team that raised roughly sixteen million dollars over its life, the exit was strategic rather than splashy: an acquirer paying for a process, not a product line.
"Revolutionizing microdisplay technology - wafer-level micro-LED for reliable, ultra-high-brightness, low-cost micro-displays."
Competitors bond two finished wafers together. Lumiode builds one. Its process deposits the driving circuitry straight onto the light-emitting layer - fewer steps, tighter integration, higher brightness in a smaller package.
Simplified schematic - transistor backplane grown on top of the LED array on a single wafer.
Why brightness is the whole game for wearable and head-up displays. Values are approximate and on a compressed scale for comparison.
Scale is illustrative, not linear - the point is the order-of-magnitude headroom Lumiode's monolithic approach unlocks.
Truly-monolithic micro-LED microdisplay made by depositing LTPS TFT backplanes directly on LED epiwafers - ultra-bright, low-power, small form factor.
A wafer-level LTPS-on-epiwafer manufacturing process, integrated into partner production lines such as STRATACACHE's Oregon micro-LED facility.
Compact, high-brightness display modules for AR/MR eyewear, automotive head-up displays and projection - the near-term markets for the technology.
Lumiode competes in a crowded field of micro-LED microdisplay developers - PlayNitride (now its acquirer), Jade Bird Display, Porotech, Ostendo, Plessey, VueReal and MICLEDI among them. Most rely on wafer bonding or pixel transfer. Lumiode's differentiator was the monolithic LTPS-on-epiwafer process.
The business was never about owning a factory. It was about owning a process worth licensing - and, in the end, worth acquiring.
Established in September 2012 as a Columbia University spinout focused on micro-LED microdisplays.
Co-founder Ioannis (John) Kymissis takes the acting-CEO role as commercialization begins.
Raises roughly $6 million from investors including IP Group and Applied Ventures.
Closes a ~$7.97M Series A and presents its truly-monolithic technology at SID Display Week 2018.
STRATACACHE integrates Lumiode's backplane deposition technology into its Eugene, Oregon facility.
Taiwan's PlayNitride agrees to acquire Lumiode for US$2 million, making it a wholly owned subsidiary.
Monolithic micro-LED microdisplays - tiny, ultra-high-brightness, low-power display panels for augmented reality, head-up displays and projection.
It deposits LTPS thin-film-transistor backplanes directly onto LED epiwafers, creating a truly-monolithic display without the wafer-bonding step most competitors rely on.
Co-founded in 2012 by Columbia University professor Ioannis (John) Kymissis (acting CEO) with Vincent Lee, John Sarik and Brian Tull.
Roughly $16 million total, including a ~$7.97 million Series A in May 2018, from IP Group, Applied Ventures and M Ventures.
In December 2025, Taiwan-based PlayNitride agreed to acquire Lumiode for US$2 million in cash, making it a wholly owned subsidiary.
Profile compiled from public sources including the company website, Crunchbase, Display Daily, MicroLED-Info and press reports. Funding figures, brightness values and the 2025 acquisition are approximate or as reported and may have changed. Brightness chart is illustrative, not to scale.