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).

Introduction to OLEDs video

OLED displays are currently the most advanced displays in production, offering superior image quality, efficiency, flexibility and more. Here's our new short video that introduces OLED display technology and the current market status:

eMagin: Micro-LED is not ready yet for microdisplay applications

OLED microdisplay maker eMagin reported its financial results for Q4 2017, and during the quarter's conference call its CEO, Andrew Sculley, discussed Micro-LED for microdisplays.

VueReal Micro-LED microdisplay prototype

eMagin actually did a research in this area with a University and has some patents towards micro-LED based microdisplays. However according to Andrew this technology still faces some challenges and it may take several years before Micro-LEDs could be applied to microdisplays - unlike TVs or larger displays which are already on the market.

Samsung to start shipping the Wall module Micro-LED TV in August 2018

Samsung Electronics says it will push forward with its two-track strategy for the premium TV market - utilizing both quantum-dots enhanced LCDs (QLEDs) and Micro-LED TVs. Samsung Visual Display Business VP, Han Jong-hee, says that Samsung will start selling its Wall Micro-LED TV in August 2018.

Samsung demonstrated its Micro-LED "The Wall" display again at ISE 2018 earlier this month. Thank you Dotan from AVMaster.co.il for the video.

Digitimes Research: smartphone makers to adopt mini-LED backlit LCDs as an alternative to AMOLEDs in 2018

Digitimes Research says that China-based smartphone makers (including Huawei, Oppo and Xiaomi) are planning to adopt mini LED backlit LCD panels in future smartphones as an alternative for AMOLED displays.

The Chinese phone makers have reached out to Taiwan-based LED makers to start making mini-LED backlighting units by June 2018. Currently the OLED market is in an over-demand situation which means that securing enough AMOLED capacity is not easy - and it also drives prices up. According to IHS, the situation will reverse in 2018, though.