Vuereal announces a partnership with ASMPT to integrate the company's transfer and bonding solutions

Canada-based microLED technology developer VueReal announced a partnership with ASM Pacific Technologies (ASMPT) to integrate VueReal's cartridge microLED mass transfer solution into ASMPT's mass transfer bonding solution for microLED display applications.

Vuereal says that this new partnership will allow its customers to achieve 99.99+% transfer yields on LED's smaller than 10 micrometers.

Rohinni doubles the speed of its mini LED placement process

Micro-LED and mini-LED developer Rohinni said that it developed a new placement technology for mini-LED that doubles the placement speed compared to its previous technology.

Rohinni - Luumii flexible keyboard LEDs photo

Rohinni developed a new bondhead which achieves a 100 Hz placement operation which effectively cuts in half the cost of placing mini LEDs. The technology will be deployed in the first part of 2021.

VerLASE reports it has achieved substantial progress in its micro-LED display transfer technology

US-based parallel microLED assembly technology developer VerLASE Technologies reports today that it has achieved substantial progress in its mass transfer process for micro-LED displays.

VerLASE microLED transfer process scheme

VerLASE now plans to develop the process flow for an assortment of dies sizes from 200 X 200 um (mini-LEDs) down to 10 X 10 um and eventually also 5x5 um. VerLASE plans to demonstrate the transfer of both flip-chip, and vertical thin film LED architectures.

XDC and Lextar entered into development, licensing and services agreements

LED developer Lextar and microLED display developer X Display Company (XDC) announced that the two companies entered into a development, licensing and services agreements. Lextar licensed XDC's IP and Lextar will supply its high-performance microLED chips to XDC's customers.

XDC - LED, printing, display image

Lextar says that this agreement will accelerate the commercialization of next-generation microLED displays, and its customers can now benefit from a one-stop service, from microLED chips to display modules.

PlayNitride launches new displays at SID 2020

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.

Samsung faces technical issues and will have to delay the launch of its true microLED TVs

According to reports early in 2020, Samsung Electronics partnered with Epistar and PlayNitride that will enable Samsung to release its first true microLED TVs by the end of 2020. A new report from Korea suggests that Samsung is struggling with technology issues and it is not likely it will meet its goal of a product release in 2020.

Samsung 146'' micro-LED TV, The Wall

The reports suggest that production yields are very low - apparently Epistar is not able to provide Samsung with the millions of microLEDs required to produce its TVs. Another major issues is Samsung's transfer process which is still not accurate enough - with the result being that display assembly yields are painfully low.

Researchers develop a new method to transfer and bond microLED arrays on flexible plastic substrates

Researchers from the University of Waterloo in Canada developed a new transfer and bonding method to deposit a flexible microLED array on plastic substrates.

Flexible microLED paste-and-cut technique schema, University of Waterloo

The technique, referred to as a "paste-and-cut", starts with temporarily bonding the LEDs on a process/handle wafer onto a glass substrate (the paste step). The LEDs are then released (cut) to the flexible substrate. This approach allows the LED to be optimized and then combined with other materials.

eLux's fluidic microLED technology and business explained

USA-based eLux was established in 2016 as a spin-off from Sharp Labs of America, to commercialize a unique MicroLED production technology. The company was in stealth mode for a few years, and is now finally discussing its technology and business. We talked to the company's president and CEO Jong-Jan Lee, who explains the company's technology, status and plans.

eLux's technology is based on a unique approach that moves microLEDs from wafer to the target substrate without the need of a pick-and-place process. The so-called fluidic process uses microLEDs dispersed in liquid and wells built onto the substrate. The microLED dispersion is spread over the substrate and the LEDs simply fall into place - a sort of self-assembly process, which can be seen in the video above.

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