Hong Kong based microLED microdisplay developer Raysolve Technology demonstrated two new microLED microdisplay prototypes, 0.11" (320x240) and 0.22" full color displays. The displays feature a density of 7,200 PPI and a brightness of up to 150,000 nits (full color). 

The displays are based on blue LEDs, with the company's proprietary Quantum dot photoresist (QDPR) process. Raysolve says it has optimized its QD process and increase the color gamut of its displays - which now achieve 147.2% sRGB, 104.3% NTSC and 108.5% DCI-P3. 

MicroLED display developer VueReal demonstrated its latest microLED display prototypes at CES 2024.

In the video, you can see VueReal's 2um microLED microdisplays. These are monochrome displays, but VueReal says it will showcase its first full-color microdisplays in Displayweek 2024. VueReal's CEO Reza Chazi explains the company's approach and solutions.

TCL has demonstrated a 163" microLED TV display prototype. This seems to be the same display showed at IFA 2023 last year.

We do not have any more technical details. In May 2023, TCL unveiled a small tiled display (18.8"), this could be based on the same tiles. The 2023 display featured a pixel-pitch of 0.43 mm, an IGZO backplane and a peak brightness of 1,200 nits. CSoT says that the LED chips have an area of 400 squm, which means chip size of about 20 microns.

Finland-based Comptek Solutions develops passivation technology solutions for III-V compound semiconductor materials and devices, based on its novel surface treatment process. Comptek's research leader Marjukka Tuominen will give a talk at the upcoming MicroLED-Connect startup showcase event on February 2024, and Comptek's CEO and co-founder, Vicente Calvo Alonso, was kind enough to send us a short update on the company's technology and status, and his views on the microLED industry and market.

Q: Hello Vicente, thank you for your time. Can you tell us a bit about Comptek, your technology and current status?

Comptek Solutions is an expert in passivation technology solutions for III-V compound semiconductor materials and devices. With our novel surface treatment process, KontroxTM, we are able to control how the oxidation process happens on the surface of the compound materials, and for the first time ever, we can create high quality, crystalline native oxides which are thermodynamically stable and present very low levels of surface state defects.

At CES 2024, Konka is demonstrating a massive 310" microLED display. The display offers 4K-Plus resolution (Konka did not detail the exact resolution), low reflectivity (<5%), 800 nits of brightness, high refresh rate (not detailed) and a large color gamut (85% BT.2020).

Konka says that this display uses the company's self developed and fully proprietary microLED chips. Konka produces its microLED chips using Aixtron's MOCVD systems.

MicroLED microdisplay developer Mojo Vision announced that it has integrated red, green and blue sub-pixels into a single panel, thus producing its first full-color microdisplay.

Mojo Vision's prototype is based on the company's own high-performance QD materials, and integration process. The prototype display is based on 1.3 um blue LEDs. 

Samsung Electronics is demonstrating its first transparent microLED display, showing how it compares to transparent OLEDs and LCDs:

As the aperture ratio of microLED displays is much higher than that of OLED displays or LCDs, it is able to achieve a much higher transparency. 

NS Nanotech, based in the US, develops nanowire microLED technologies, branded as nanoLED, using MBE deposition. The company targets the microLED display market, and also the LEDs for pathogen-neutralizing far-UV. NS Nanotech's CEO, Seth Coe-Sullivan, will give a talk at the upcoming MicroLED-Connect startup showcase event on February 2024, and was kind enough to send us a short update on the company's technology and status, and his views on the microLED industry and market:

Seth Coe-Sullivan: NS Nanotech is a spin-off from McGill University and the University of Michigan, with offices in Ann Arbor and Montréal near both campuses. We have exclusive licenses to portfolios of patents for breakthroughs in sub-micron-scale vertical nanowire LEDs, and we have published peer-reviewed results showing world-class efficiency for red and green nano-LEDs. And now we are working to demonstrate how this technology can scale to commercially relevant processes and wafer sizes for both main displays and microdisplays.

Our go-to-market strategy involves partnering with larger companies that have the balance sheet to scale quickly, while we remain a technology provider. As we map a clear path to commercialization of our nanowire technology, we have started to fabricate demonstration wafers to make samples available to potential manufacturing partners.

CarUX, a subsidiary of Innolux, is demonstrating new microLED automotive display prototypes at CES 2024. The main demonstration is the Pixiu 3 premium, shown below.

This complete cockpit system utilizes Innolux's unique Micro LED COB (Chip on Board) to offer high brightness, high contrast ratio, rapid response, and high color saturation - in addition to very high efficiency. Innolux says that it aims to meet the requirements of power consumption features and advanced automotive markets.

Kopin announced a strategic agreement with MICLEDI to design, develop and produced advanced full-color microLED displays for AR applications.

A 2k OLED microdisplay by Kopin

The project will adopt MICLEDI's CMOS microLED production process, and Kopin's backplane and driving technologies. Kopin will also contribute its deep experience in manufacturing complete display systems.