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Korean market research company UBI Research forecasts that Micro-LED revenues will grow from around $100 million in 2019 to over $6 billion in 2025.
IHS Markit recently said that it expects MicroLED display shipments to reach 15.5 million units in 2026, as sharp production cost improvements will enable micro-LED technology to achieve mass market success. The new emerging display technology will find markets in wearables, TVs, AR and also smartphones.
Researchers at Zhejiang University developed a laser-driven programmable non-contact transfer printing technique that could be applicable to the transfer of Micro-LED chips. The researchers used an innovative design based on an active elastomeric micro-structured stamp with tunable adhesion.
The tunable adhesive used in this technique features cavities filled with air and encapsulated by a micro-patterned surface membrane, used in easily available sandpapers. The micro-patterned surface membrane can be inflated dynamically to control the interfacial adhesion by heating the air in cavities.
Luumii, a joint-venture between Micro-LED developer Rohinni and Koja, announced that it has started to mass produce its micro-LED and mini-LED based notebook computer keyboard backlights and logo lighting solutions.
Luumii says that its solutions are more compact and offer a higher power efficiency compared to current solutions, and may also enhance product features and user experience as it offers colored lighting and animations. Luumii's current capacity is 34,000 units per month, and by the end of 2019 it will increase the capacity to 100,000 monthly units.
High-precision 3D sensing developer CyberOptics Corporation announced that it has received a $1.3 million order for for Multi-Reflection Suppression (MRS)-enabled SQ3000 Multi-Function systems for Automated Optical Inspection (AOI), Solder Paste Inspection (SPI) and Coordinate Measurements (CMM).
CyberOptics says taht the systems, which will ship in Q2 2020, will be used for the scale-up of Micro LED device production.
US-based Rohinni announced that it has received initial orders for its Pixalux mini-LED and micro-LED placement solution. The company expects to ship more systems in the current quarter, and anticipates higher-volume market adoption in 2020.
Rohinni says that its system combines higher throughput and accuracy for small-die applications to provide a compelling and highly-competitive solution.
HDTVTest posted an interesting video showing Sony's 110" Crystal-LED micro-LED display at Sony's Basingstoke UK office, at a joint event organized with AWE, a Sony distributor in Europe. The reviewer is highly positive about Sony's Micro-LED display quality:
AWE offers Sony's Crystal LED displays, which are custom made, but the company did release a general price guideline:
Digitimes reports that PlayNitride raised $50 million and is ready to start trial production of micro-LED chips by the end of August 2019. PlayNitride will increase its headcount by 100 employees.
PlayNitride told Digitimes that it achieved a yield rate of 99.9% in its LED transfer (pick-and-place) process. Using mass repair technologies, the company is certain it can achieve commercial viability of its process. The company's mass transfer speed is 10,000 chips per second. This means that for a Full-HD (1920x1080) display it will take just over 10 minutes to transfer the LED chips. A 4K display will take just over 40 minutes.
According to Taiwan's Economic News Daily, PlayNitride and RiTDisplay are in talks with Apple to supply microLED displays for Apple's next-generation Watch wearable.
These are just rumors at this stage, but END says that PlayNitride confirms it is in talks with US customers regarding a 3" full-color Micro-LED display. This interesting as this is not a display we are used to see in most mobile devices - wearables are usually limited to around 1.5" while smartphones today start at around 6".
PlayNitride demonstrated its latest Micro-LED displays at SID DisplayWeek 2019, and the following recently-published video shows the company's booth and prototypes:
So first up we have a 7.56" 720x480 (114 PPI) transparent MicroLED display, which looks very impressive. This is the same Micro-LED display that TianMa demonstrated at its own booth. Interestingly, under direct light from it seems that the display is made from tiles - but PlayNitride says that the squares are made from the stamping process, and the company is developing technology that will remove these marks.
Researchers from the University of Waterloo have demonstrated the successful integration of a-Si:H TFTs and high-efficiency micro-LED chips on large-area flexible substrates. This is the first time that an amorphous silicon was used to drive Micro-LEDs which could pave the way for lower-cost micro-LED display fabrication using existing LCD technology.
the researchers use a 2-TFT pixel circuit, with blue GaN-based micro-LED chips. The low-temperature TFT production process enabled the direct integration onto a flexible flexible polyethylene naphthalate (PEN) substrate. After the TFT fabrication, the micro-LED chips were flip-chip bonded on the TFT, and then transferred onto the flexible pixel circuit using a selective laser lift-off process.