Transparency - Page 5

Canada-based microLED technology developer VueReal demonstrated a new transparent microLED display. The display is between 3 and 4 inches in size, with high brightness (over 3,000 nits) and very high transparency (85%).

The display in the video is produced on glass, but VueReal can also produce displays on flexible substrates. The company did not disclose the display's resolution (or whether this is a segmented display).

China-based display maker Royole introduced a stretchable and transparent microLED display prototype at SID Displayweek 2021. The company says that this display, the first of its kind, is compatible with existing industrial manufacturing processes.

The prototype panel is a 2.7-inch 96x60 display (120 PPI) . It can stretch by up to 130% and bend up to 40 degrees. It is quite transparent, too - with a transmittance of 70%.

MicroLED developer PlayNitride introduced interesting new display prototypes at SID Displayweek 2021.

The first display is a 89-inch 5K (59 PPI) curved display, produced from tiled microLED panels. The display has a 32:9 aspect ratio with the microLEDs driven by PCB. The 89-inch display is build from 168 tiles, and it achieves a brightness of over 2,000 nits.

Tianma demonstrated several new microLED display prototypes at SID Displayweek 2021. First up is a 7.56" 720x480 (114 PPI) flexible MicroLED display, developed in collaboration with PlayNitride. The display is driven by an LTPS backplane and achieves a brightness of over 600 nits. The bending radius is 50 mm.

The second display is a tiled display that combines two 5.04" 480x320 (114 PPI) LTPS microLED displays. This one was develop again in collaboration with PlayNitride. The border (bezel) of the panel is less than 0.03 mm - although looking carefully at the display you can see a black line separating the two panels.

AUO Optronics is showing its latest microLED ALED display prototypes at SID DisplayWeek 2021. Most of these aren't new display (AUO already demonstrated these last month) but it's the first time we got these on video:

You can see the 1.39" 472x472 (338 PPI) full-circle microLED display, developed together with PlayNitride. You can also see AUO's 12.1-inch 169PPI microLED display it first demonstrated in SID 2020, and the 9.4-inch 228 PPI flexible microLED prototype it also developed together with PlayNitride.

Last week we reported that Ennostar Incorporation (formed by a merger of Taiwan's Epistar and Lextar in 2020) demonstrated a 10.6" transparent microLED display at Touch Taiwan 2021. We now have more information on Lextar's new display prototype.

Ennostar Incorporation (formed by a merger of Taiwan's Epistar and Lextar in 2020) published this nice video that showcases the company's latest technology demonstrated at Touch Taiwan 2021:

Lextar unveiled a 10.6" transparent MicroLED display, branded as "iMicro display", as you can see in the video. We do not have more information on this new display yet.

Global digital signage solution provider STRATACACHE is embarking on a project to construct a microLED display production line in Eugene, Oregon. The company aims to start production in this fab at around 2022-2023, with plans to adopt these microLED displays in its own solutions.

The new factory (E4) will be a complete microLED production line, from epiwafer (on 300 mm silicon wafers), through transfer process and to final module assembly. The company plans to produce a wide range of displays, from tablet-sized panels to large-area displays. Some of these displays will be flexible and transparent as the company sees a market demand for such technologies. The yearly capacity of the E4 is expected to start at a 1 million square meters per year.

PlayNitride introduced several new display technologies at SID DisplayWeek 2020. First up we have the PixeLED Matrix, which is a tiled microLED display module based display, each produced on its own PCB.

Each PixeLED module is made from 16 pixels (4X4), and can reach pitches of 0.3-0.4 mm. PlayNitride says that this technology can compete with mini LED displays, and says that it achieves a superior contrast and can also be fitted on curved surfaces. PixeLED displays can be used for TV displays, for commercial signage displays and also for automotive lighting. The display can currently achieve a maximum brightness of 2,000 nits.

Canada-based VueReal is a startup company that develop Micro-LED based microdisplays. The company's Continuous Pixelation micro-printing technology offers high density displays, high production yields and a simple design.

VueReal's founder and CEO, Reza Chaji, was kind enough to answer a few questions we had on the company's technology and business.

Reza, thank you for your time. Can you explain VueReal's micro-printing process and technology?

VueReal’s solution is a true printing process where you do not need to pick LEDs for each transfer. It is based on a cartridge design by VueReal that releases the LEDs selectively into the substrate.