Power consumption - Page 10

Samsung Display announced a new OLED technology, called Adaptive Frequency that enables variable refresh rate in AMOLED displays - ranging from 10Hz to 120Hz. Running OLEDs at low refresh rates when possible can reduce the power consumption of the display (over all applications) by up to 22%.

This new display technology was applied for the first time in the Galaxy Note20 Ultra 5G smartphone, announced earlier this month, with its 6.9-inch 1440x3088 Dynamic AMOLED.

Kopin Corporation announced in January 2020 that the company developed a new double-stack OLED architecture that enables brighter microdisplays with longer lifetime. Earlier this yeare Kopin announced a new 1.3" 2560x2560 OLED microdisplay, developed with Panasonic and Lakeside Optoelectronic, that uses the new double-stack architecture and achieves brightness of over 1,000 nits.

Kopin 1" 2k x 2k OLED Lightning microdisplay

Kopin now announced that its latest 720p OLED Lightning dual-stack OLED display has exhibited very high brightness of 7000 nits with good color and high contrast. Kyulux explained that to achieve this high brightness, it has worked with its partner, Lakeside Optoelectronics to optimize the duo-stack OLED structure to output color spectrum to match the bandpass of the color filters for high color fidelity, coupled with very high current efficiency and low operating voltage.

Kyulux presented a new paper at SID Displayweek, that shows the latest progress of the company's Hyperfluorescence OLED emitter platform. You can see the latest performance chart below.

Hyperfluorescence combines TADF and fluorescence emitters, which enables high-efficiency (~100% IQE) emitters that feature long lifetimes and a very narrow emission spectrum. The company's yellow HF emitter is already commercialized, and now Kyulux says that its red and green materials are "close to commercialization". The company is also improving the color point and lifetime of its HF blue emitters.

This is a sponsored post by Noctiluca

Poland-based TADF developer Noctiluca reports that the company continues to improve its emitter platform, and the company recently concluded testing a new family of emitters that have revealed great TADF properties, good to excellent QY and blue emission. Noctiluca released the raw data (available from company under the NDA) that details the performance of several new blue emitters. Here is a link to the summary of these results.

Noctiluca’s Team have a history of making custom high purity compounds to specific needs, and its TADF compound family has a high level of customization which will allow the company to tailor its materials for specific OLED stacks. In fact the company's next step is to work with industry leaders and OLED material developers to test its materials within commercial-grade OLED stack architectures to continue its development work and enhance the performance of its OLED emitters.

OLED lighting developer OLEDWorks announced that it has developed a high-performance multi-stack OLED microdisplay technology. Next week at SID Displayweek OLEDWorks will present the technology, and results from 3, 4 and 5-stack microdisplay formulations.

OLEDWorks explains that it has realized its multi-stack OLED lighting technology - and the results are "exceptional". The company says that combined wit its unique and cost-effective manufacturing technology, microdisplays based on this new technology could combine high brightness, long lifetimes, exceptional power efficiencies - all at a low manufacturing cost.

OLED material developer Cynora announced its first commercial product, a fluorescent blue emitter that is based on an "advanced molecular design" that is 15% more efficient that current fluorescent blue emitters on the market. Cynora brands its new material as cyBlueBooster, and it says it is currently available for commercialization in several shades of blue.

This could be very exciting news - while the whole industry is looking for next-generation emitters using TADF or PHOLED technologies, Cynora could have found an easier path to reduce power consumption by 15%. OF course a TADF or PHOLED emitter will achieve a reduction of 75% in power consumption compared to currently-used fluorescent emitters.

Samsung Display announced that it developed a new AMOLED smartphone display, optimized for 5G smartphones, that features a reduction of 15% in its power consumption compared to SDC's previous OLEDs. The new display also features the lowest blue-light emission in the industry - 6.5%.

Samsung did not explain how it managed to achieve the new reduction in power consumption - this is likely to be the result of new OLED materials. Samsung also does not explain how exactly these new OLEDs are optimized for 5G smartphones exactly - except for saying that these new displays are an excellent choice due to their high image quality, low power consumption and eye-protective functionality (low blue light).

In January 2019 Taiwan-based INT Tech unveiled its proprietary glass-based high pixel density OLED technology, and the company now announced that its first prototype display was produced and successfully tested.

INT Tech's display is a 0.7" 2,300 PPI real RGB side-by-side AMOLED display. INT Tech says that its technology enables larger displays with higher brightness, lower power consumption and a wider color gamut compared to currently available OLED microdisplays which are produced on silicon.

Kopin Corporation announced that the company developed a new double-stack OLED architecture that enables brighter microdisplays with longer lifetime.

Kopin 1" 2k x 2k OLED Lightning microdisplay

Last week Kopin announced a new 1.3" 2560x2560 OLED microdisplay, and the company now reveals that this display uses the new double-stack architecture and achieves brightness of over 1,000 nits. Kopin also says that this display was co-developed with Panasonic and Lakeside Optoelectronic.

Wisechip announced that it launched the world's first Hyperfluorescence OLED display - a 2.7" monochrome yellow 128x64 PMOLED. The brightness of this display reaches 220 nits - which is 2.5 times the brightness of Wisechip's fluorescent yellow PMOLED. The lifetime of this display is 50,000 hours.

Hyperfluorescence OLED emitters represent the 4^th-generation of OLED emitter systems. HF is an actually a system that combines fluorescence emitters (1^st-gen) with TADF (3^rd-gen) hosts - to achieve a high efficiency , long lifetimes and narrow-spectrum emission.