RiTDisplay and PlayNitride form a stragetic partnership

Taiwan-based PMOLED display maker RiT Display announced a strategic partnership and share swap with MicroLED developer PlayNitride. RiTDisplay will have access to PlayNitride's technology and will be able to produce and sell micro-LED panels.

According to the Taipei times, RiTDisplay aims to produce small displays for wearable applications. The article says the display size will be around 3-inch, which actually sounds rather large for wearables.

Two out of three SID Displays of Year Awards go to Micro-LED displays

The Society of Information Display (SID) revealed its 2019 display industry award winners, and interestingly two out of the three Display Of The Year Awards went to Micro-LED displays.

First up we have Samsung's modular The Wall display, made up of tiled and seamless micro-LED modules. The Wall was unveiled in January 2018 in a 146-inch installation. The Wall was officially launched in June 2018 when Samsung started to accept pre-orders, aiming to find customers in lobbies, museums, galleries, and retail spaces. It is estimated that the price of the 146" model is around $100,000. The Wall Professional features HDR 10+ and a peak brightness of 2,000 nits.

Foxconn may produce MicroLED displays or modules at its Wiscon fab in the future

Taiwan-based Foxconn is building a display production fab in Wisconsin, USA. Announced in 2017, the fab changed its designation a few times (from LCD display panel production, to R&D and finally to LCD module production).

Foxconn production line photo

Foxconn now announced that it may also add OLED and Micro-LED production lines in the Wisconsin factory. It did not disclose any more details or timeline, this is certainly not a commitment yet, it's not even clear if the plan is to produce MicroLED panels or assemble modules.

Fuji Chimera: micro-LEDs are not yet ready to take over the AR microdisplay market

Fuji Chimera Research Institute says that the global microdisplay market reached $161 million in 2018, led by LCoS panels (59.7%) and OLED panels (27.8%).

VueReal micro-led microdisplay prototype photo

While some analysts expect Micro-LED to take over the AR microdisplay market, Fuji Chimera says that the technology is not mature enough and there are some technology challenges to overcome still - including those in epitaxial wafer process, mass transfer, defect detection and current drive.

We talk Micro-LED technology and market with Yole Développement

Market research firm Yole Développement has been following the Micro-LED market for some years with some very interesting insights and forecasts.

Zine Bouhamri photo (Yole)

Yole's technology & market analyst Zine Bouhamri was kind enough to discuss Yole's Micro-LED views with us. Mr. Zine is is a member of the Photonics, Sensing & Display division at Yole and he's deeply involved in the business development of the Displays unit activities.

Nanosys explains the advantages of QD-MicroLED displays

HDTVTest posted an interesting interview with Cadmium-Free QD developer Nanosys CEO and president Jason Hartlove. In this long interview Jason discusses the company's technology and recent achievements.

Jason explains that producing an RGB Micro-LED has many challenges as each color micro-LED chip is different - and different color LEDs need slightly different voltages and drive currents. The mechanical placement of these chips is also much more difficult for three colors. Using single-color (blue) Micro-LED chips and color-converting them using QDs makes a lot of sense for such displays - with easier manufacturing, longer lifetime, less differential aging (burn-in) and a wider color gamut.

Coherent nicely summarizes the differences between LCDs, OLEDs and Micro-LED displays

During a presentation at SID Displayweek 2018, laser developer Coherent showed a nice chart that summarizes the performance difference between LCDs, OLEDs and Micro-LED displays.

LCD vs OLED vs MicroLED comparison chart (Coherent)

Coherent says that its lasers could be used in the pick-and-place process when making micro-LEDs. A laser lift-off process (LLO) removes the LED chips from the sapphire growth wafer (or any other carrier wafer) and a the laser-inducted forward-transfer (LIFT) process transfer selected dies from carrier to substrate in a high-precision way that can be massively parallel (over 25,000 dies per shot).