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.

Taiwan-based Innolux demonstrated several new microLED display prototypes at Display Week 2023.

First up is a small round active-matrix 1.1" 374x374 (338) PPI microLED panel. This one was produced on an LTPS backplane and offers a brightness of 500 nits (relatively low for a microLED display. The LEDs are 40 um in size.

China-based microLED display developer Sitan Technology demonstrated its latest microLED displays at Display Week 2023.

The company has developed four microLED microdisplays: 0.13" 1024x748 monochrome, 0.18"  800x600 monochrome, 0.18” 600x400 full-color and a 0.45" monochrome FHD panel. The company's 0.13" display offers a display density of 10,000 PPI (monochrome). The company also showed small transparent microLEDs.

During Display Week 2023, Seoul Semiconductor demonstrated new prototype display modules that use its WICOP microPixel technology. WICOP Pixel is a full-color one-chip vertically-stacked microLED technology that does not require wire bonding, packaging, or lens, and enables easier microLED display production.

Seoul Semi updates that its latest WICOP Pixels reach a brightness of 10,000 nits (up from 4,000 in its previous generation technology).

During Display Week 2023, Tianma demonstrated its latest microLED display prototypes - all of which are transparent displays, stating that the main application for such displays is in the automotive sector.

The first display is a 8.75" panel, offering a resolution of 880x480 (114 PPI), a brightness of 800 nits and high transparency of over 70%. The display is an active-matrix microLED produced on an LTPS backplane.

During Display Week 2023, TCL CSoT showed a new microLED display prototype, a tiled 18.8" 960x540 display.

This is TCL's largest microLED shown to date, we believe. The display offers a pixel-pitch of 0.43 mm, an IGZO backplane and a peak brightness of 1200 nits. CSoT says that the LED chips have an area of 400 squm, which means chip size of about 20 microns.

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.

Display Week 2023, the industry's premier event, is now over, and it was a great week. We had dozens of meetings and saw many next-generation display technologies. As we go over all materials, we will upload new stories to detail the displays on show.

During the conference, we also hosted the first annual MicroLED Industry Association meeting, and were happy to see almost 40 people attending the meeting, and staying for several hours - discussing their latest technologies and exchanging information and news.

Here are our key takeaways from this show:

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!

In June 2022 it was reported that JBD is building a $92 million USD display production line in Hefei. JBD now says that its production line has commenced operation, and is producing microLED microdisplays.

According to reports, the production line will have an annual capacity of around 120 million panels (likely JBD's 0.13" monochrome variant).