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