PPI

US-based Q-Pixel announced that it has developed a new 3K x 1.5K, a 1.1x0.6 cm (6800 PPI) microLED microdisplay. Q-Pixel says that this is the world's highest resolution color microdisplay - but they actually mean the highest density full-color microdisplay.

Q-Pixel's technology is based around a single-pixel color-tunable microLED device, and the company's displays are produced using a monolithic process. In May 2023, the company announced a 5,000 PPI full-color microdisplay. In fact, later in 2023 the company announced a 10,000 PPI microLED microdisplay, but the 10,000 display was a passive-matrix microdisplay, and the newly announced display is an active-matrix one. 

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. 

Poland-based inkjet printing pioneer XTPL has launched its latest printing system, the Ultra-Precise Dispensing (UPD) System that enables the printing of high-precision electronically conductive or insulating structures.

The new systems are suitable for industrial production, and XTPL is targeting the display market, and specifically the microLED display market with its new systems. For microLED developers, UPD offers the ability to deposit precise conductive interconnections, supporting the integration of the microLEDs into heterogeneous microelectronic systems. These interconnections manage control, driving, and power distribution for microLEDs, expanding potential applications in AR/VR devices, smartwatches, automotive displays, and more.

US-based Q-Pixel announced that it has developed the world's smallest full-color pixel (1 micron) and demonstrated a 10,000 PPI microLED microdisplay based on its proprietary tunable polychromatic microLED technology (which it brands as TP-LED). 

Q-Pixel's technology enables a single-pixel color-tunable microLED device, and the company's displays are produced using a monolithic process. In May 2023, the company announced a 5,000 PPI full-color microdisplay, so this is fast progress only a few months later. Q-Pixel is a MicroLED Industry Association member.

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.

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.

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.

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.

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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).

US-based Q-Pixel announced that it has developed a 5000 PPI full-color microLED microdisplay, based on its proprietary Polychromatic microLED technology.

Q-Pixel's technology enables a single-pixel color-tunable microLED device. The displays are produced using a monolithic process. As the company is still in stealth-mode, we do not have more information, it will be interesting to know how this technology compares to Porotech's DPT color-tunable microLED technology.

AU Optronics is demonstrating several display at Touch Taiwan 2023, including an interesting new laptop microLED display. The display is a 14.6" 2560x1440 (QHD, 202 PPI) foldable panel, that can reach a brightness of over 1,000 and a bending radius of 4 mm.

In addition to this display AUO is showing its 17.3" transparent microLED prototype.