Mojo Vision developed the world's highest density red microLED microdisplay

AR microLED microdisplay developer Mojo Vision announced that it has developed the world's highest-density (1.87 um pixel pitch) red (620 nm) microLED microdisplay. Mojo produced a first working prototype of its display, that is based on 1.37 um blue LEDs with QD color conversion

Last month Mojo announced that it has achieved a process milestone and has lit-up its first 300 mm GaN-on-Silicon blue microLED array wafer. The company said it is on track to maturing its 300 mm CMOS fab process.

Read the full story Posted: Jun 28,2023

PlayNitride showcases its latest microLED displays at Display Week 2023

Taiwan-based MicroLED developer PlayNitride (a MicroLED Industry Association member) has demonstrated its latest microLED displays at Display Week 2023.

First up we have the company's tiled large-area microLED displays, called PixeLED Matrix. The company showed a 166" vertical installation, that is made from 324 modules. The total resolution is 1440x4860 (30 PPI, or a pixel pitch of 0.833 mm). This was a very nice looking demonstration.

Read the full story Posted: Jun 03,2023

AUO shows its latest microLED displays at Display Week 2023

AUO has demonstrated its latest microLED displays at Display Week 2023. Most of these displays have been shown before, but this was an impressive lineup for the Taiwanese display maker, and we'll detail the displays below.

So first up we have the 13.5" 1920x1080 (163 PPI) transparent microLEDs, which AUO says is the highest-resolution transparent microLED display ever demonstrated. The display offers a transparency of 55% and a high brightness of 5,000 nits. The microLEDs used in this display are 30 micron in size.

Read the full story Posted: May 29,2023

Mojo Vision lit up its first 300 mm GaN-On-Silicon blue microLED wafer

AR microLED microdisplay developer Mojo Vision announced that it has achieved a process milestone and has lit-up its first 300 mm GaN-on-Silicon blue microLED array wafer. The company says it is on track to maturing its 300 mm CMOS fab process.

Mojo Vision is developing microdisplays based on blue LEDs and quantum dots color conversion. The company developed the world's highest density microLEDs, achieve up to 28,000 PPI (sub-micron LEDs).

Read the full story Posted: May 29,2023

XTPL and QustomDot report excellent compatibility of QustomDot's unique color conversion inks with XTPL's Delta printing system

XTPL and QustomDot have joined forces in a EU-supported consortium that aims to develop printed and flexible microLED displays (BAMBAM*). We are excited to announce that the two companies have tested a new generation of InP-based quantum dot (QD) inks that have the potential to revolutionize the field of microLED displays. The experiments showcase the excellent compatibility of QustomDot's unique red and green inks with XTPL’s state-of-the-art Delta Printing System.

QD inks deposited with unparalleled precision, accuracy and uniformity, as attested by a reproducibility of the deposited droplet diameter is 3,5 µm and its height below 300 nm – well within the requirements for microLED. Being able to do this on both hydrophobic and hydrophilic surfaces, our solution further highlights the versatility towards different integration flows. The prints are capable of satisfying the current demands for display printing and the prospective requirements for manufacturing microLEDs. The combined impact of XTPL’s printing system and QustomDot’s QD inks indicates that this technology is incredibly versatile, and presents exciting opportunities for expanding the use of QD-based ink printing on a larger scale. The results have been nothing short of spectacular!

Read the full story Posted: May 24,2023

A spotlight on QustomDot: a MicroLED Industry Association member

We're happy to interview QustomDot, as part of our series of interviews with MicroLED Industry Association members. QustomDot is an early stage company that develops quantum dots materials tailored for microLED display applications.

Hello! Can you introduce your company and technology?

Kim De Nolf, QustomDot's co-founder and CEO: QustomDot is a technology startup that specializes in the development of customized quantum dots for down-conversion applications. Quantum dots are semiconductor nanocrystals that exhibit unique optical properties, making them useful in areas such as displays, solar cells, and biomedicine.

Read the full story Posted: May 07,2023

Foxconn, Ennostar and Unikorn Semiconductor jointly develop microLED microdisplays

Hon Hai Precision Industry (Foxconn) has announced that it has developed a new microLED microdisplay, in collaboration with Ennostar and Unikorn Semiconductor (a part of Ennostar). The company is showcasing the display at Touch Taiwan 2023 - a monochrome blue 0.12" 6500 PPI 200,000 nits display.

Foxconn says that the companies have optimized the structure of the microLED chips in a join project, and developed a new thin film protection technology tat reduces surface defects, improves external quantum efficiency, and increases product reliability. Foxconn has also developed its own quantum dots based color conversion technology that enables it to convert the display to full-color (that achieved a PPI of 3,600).

Read the full story Posted: Apr 20,2023

Researchers fabricated full-color flexible microLEDs using perovskite QD color conversion

Researchers from Korea's KIMM institute have fabricated full-color flexible microLED devices, using blue LEDs and perovskite quantum dot color conversion layers. The demonstrated device featured  1 mm pixel pitch LEDs (25.4 PPI) and could be bent with a radius of 5 mm without being damaged.

The researcher used a perovskite-QD and siloxane composite using ligand exchanged PQD with silane composite followed by surface activation by an addition of halide-anion containing salt. Due to this surface activation, the researchers say that it was possible to construct the PQD surface with a silane ligand using a non-polar organic solvent that does not damage the PQD. As a result, the ligand-exchanged PQD with a silane compound exhibited high dispersibility in the siloxane matrix and excellent atmospheric stability.

Read the full story Posted: Mar 27,2023