MicroLED developer PlayNitride is showing a wide range of display prototypes at CES 2022, including two new displays.
The first new display is a 37-inch full-HD PixeLED Matrix panel made from tiled PCB-based microLED displays.
Quantum Dots
QuantumDots-Info, a new knowledge hub to focus on quantum dots technologies for the display industry
Metalgrass has launched a new knowledge hub, QuantumDots-Info.com. Our new site focuses on QuantumDots technologies for the display industry. QDs are already used in many displays, and it is likely that the future will bring us more types of QD Displays, including QDEL, QD-OLEDs and QD-MicroLEDs that use quantum dots to convert blue light to red and green.
QuantumDots-Info brings you daily news, commentary, resources and updates about QDs in the display industry. You can subscribe to our weekly QD display newsletter here - and if you have not done so already, be sure to also subscribe to the free monthly MicroLED newsletter!
Sharp develops MicroLED microdisplay technology
According to reports from Japan's Nikkan Kogyo Shimbun, Sharp is developing MicroLED microdisplays, with an aim to mass produce such panels in 2023 or 2024 for AR and VR applications.
Sharp apparently already developed two prototypes, including a 0.38" 1053 PPI color one and a 0.13" 3000 PPI blue display. The color display uses blue microLEDs with Sharp's own proprietary color conversion QD technology.
Helio Display Materials develops perovskite-based materials for the display indsutry
Helio Display Materials, based in the UK, was spun-off from both Oxford and Cambridge University, to commercialize photoluminescent and electroluminescent perovskite-based materials for the display industry - with solutions for the OLED, LCD and Micro-LED markets.
Our sister site, Perovskite-Info, posted an interview with Helio's CEO, Simon B. Jones, discussing the company's technology and business.
Guangzhou's local government to subsidize emerging display technology production - including MicroLED displays
The local government of China's Guangzhou province announced that it now offers large subsidies (up to $285 million USD per company) to encourage emerging technology production in the province.
The government announced a list of emerging display technologies - which include OLEDs, quantum dot displays, e-paper displays, graphene enhanced display technologies - and microLED displays.
The Fraunhofer IAP and KETI to co-develop quantum dots color filters for microLED displays
The Fraunhofer IAP and Korea Electronics Technology Institute (KETI) have launched a joint research project to develop ink-jet printed quantum dots color filters for microLED displays.
The five-years CoCoMe (Color Converting MicroLeds) project aims to develop materials and processes to achieve high brightness microLEDs using quantum based color filters.
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.
Plessey to integrate Nanoco's quantum-dots into its micro-LED displays
UK-based GaN-on-Si MicroLED developer Plessey Semiconductor announced a partnership with Quantum Dots developer Nanoco. Plessey aims to integrate Nanoco's cadmium-free quantum dots into its micro-LED displays.
Using a quantum-dot coating, Plessey will be able to use only blue micro-LEDs in its microdisplays, and convert the blue light to red and green to create full-color displays (in a similar way to today's QD-enhanced LCD displays). Plessey says that this design will enable it reduce its pixel pitch from 30 µm to just 4 µm, a reduction of 87%. The QD-enhanced micro-LEDs will also have a wide color gamut and will be more energy efficient compared to Plessey's current phosphor-based architecture.