Power consumption

LG Displays adopts its MLA technology to its new gaming monitors

Last month LG Display announced its META technology, which is a micro-lens array (MLA) that increases OLED brightness by around 60% and viewing angles by 30%. The MLA technology was first adopted in LG's high-end TV panels.

LG UltraGear 27GR95QE-B photo

According to reports from Korea, LGD is now applying MLA to its gaming monitors, as it sees the growing gaming market as an important one for its future growth.

Read the full story Posted: Jan 31,2023

LG confirms its latest OLED TV panels use microlens arrays, brands it as META Technology

A few days ago LG Electronics unveiled its 2023 OLED TV range, which included the OLED G3, LG's slim all-in-one design OLED TV which is LG's brightest OLED TV yet. As we reported, LG Display announced today that its latest OLED panel adopts a micro-lens array to boost the performance.

Branded as META Technology, the OLED Panel is covered with a micro lens array to maximize the light emission. LGD says that this increase the brightness by 60%, and also increases the viewing angles by 30%. The G3 panel has a peak brightness of 2,100 nits.

Read the full story Posted: Jan 05,2023

LGD: all of our new OLED panels use deuterium-based OLED.EX technology

In December 2021, LG Display unveiled its OLED.EX (Evolution and eXperience) technology, that are based on deuterium-enhanced compounds to increase brightness by up to 30%. The company now announced that it has completed upgrading all of its WOLED TV production lines (in Korea and China) to EX technology, and all new panels will use the new materials.

LG Display says to develop the OLED.EX technology, it has converted the hydrogen elements present in organic light emitting elements into stable deuterium. LGD extracts the deuterium compounds from water, and after stabilization, the compounds allow the OLED devices to be brighter - and also last longer.

Read the full story Posted: Nov 26,2022

MagnaChip announces its first power management IC designed for OLED IT displays

OLED driver IC developer MagnaChip has launched its first power management integrated circuit (PMIC) specifically designed for IT devices with OLED displays.

Magnachip IT OLED driver IC photo

A PMIC supplies power to electronic devices, and it is an important component in mobile devices to optimize power consumption. The newly-designed PMIC communicates with a system by using an Inter-Integrated Circuit (I2C) interface and can control functions such as output voltage control, ON/OFF block, output voltage sequence management, and more. It supports variable refresh rate OLED displays, from 60Hz to 240Hz.

Read the full story Posted: Nov 16,2022

Researchers suggest using the dipole moments of TADF host materials to increase emission performance

Researchers from the University of Cambridge, led by Dr Alex Gillett, have studied the effect of host materials (the dielectric environment) on the performance of TADF OLED emitters, and specifically how the dipole moment of the host material can affect the rISC rate of the TADF component.

University of Cambridge: the impact of the toluene solvent dynamics on the riSC process of TXO-TPA

The impact of the toluene solvent dynamics on the riSC process of TXO-TPA (left: TXO-TPA in an explicit toluene solvent environment, right: TXO-TPA in vacuum)

The researchers tested several TADF OLED materials, and in some of these materials, the effect of different host materials can be quite dramatic. It is believed that commercial TADF devices could benefit from tuning the host and emitter combination to achieve higher performance, including a better efficiency roll-off as conversion of triplets into singlets can be accelerated.

Read the full story Posted: Nov 15,2022

Toray Research Center to host an OLED technology webinar to discuss dopant ratios

Toray Research Center (TRC) is now hosting online webinars focused on display technologies. TRC, who supplies technical analysis and support for R&D and manufacturing, invites you to attend the online lectures at no cost, to learn more about OLED, microLED and QD technologies and analysis of OLED devices.

Toray Research Center TRC banner

The webinars include recorded presentations, which will be available online up until to November 22. You can register for the webinars here.

The webinar will include three different presentations:

  • OLED dopant ratio for efficient emission
  • Laser-based processes for microLED production, analysis method to evaluate chips after transfer
  • Degradation analysis of QD-LED devices

Read the full story Posted: Nov 15,2022

KT&T developed a full-color OLED microdisplay with a brightness of 12,000 nits

KT&T, established in 2020 as a spin-off from INT Tech with an investment of $143 million, has developed an OLED microdisplay that achieved a brightness of 12,000 nits, which is the highest brightness OLED microdisplay ever developed.

KT&T UNEEDXR technology slide

The new panel is based on KT&T's own uNEEDXR technology, which is a direct-emission (no color filters) design. The display achieves very high brightness and high efficiency.

Read the full story Posted: Nov 12,2022

Researchers from Shenzhen University designed efficient selenium-integrated TADF OLED emitters

Researchers from China's Shenzhen University are working towards efficient selenium-integrated TADF OLED emitters.

The researchers latest work detailed the structure-activity relationship between heavy atom effects and multiple resonance TADF performance. The researchers say that their new emitters effectively solve some of the issues inherent in TADF emission technology, specifically the sharp drop in emission at high brightness, what is called the emission roll-off.

Read the full story Posted: Oct 28,2022

Researchers develop new highly-efficient cyanopyrazine-enhanced fluorophores OLED emitters

Researchers from Russia's Ural Federal University developed a new OLED emitters based on cyanopyrazine-enhanced fluorophores. The presence of cyanogroup substance in the composition of fluorophores significantly increases the efficiency of the OLED emitters.

OLED based on push-pull-systems from cyanopyrazine compounds (Ural Federal University)

The researchers say that they have modified the pyrazine-based push-pull system with cyanogroup and studied how this affected the photophysical properties of the fluorophores and the performance of OLED devices based on these materials.

Read the full story Posted: Oct 21,2022

Researchers develop the world's most efficient single-layer PHOLED emitter

Researchers from the Université de Rennes in France have developed a simplified PHOLED green emitter that achieves the world's highest efficiency in single-layer PHOLEDs - an EQE of 22.7%.

Simplified green single-layer phosphorescent OLED (Universite De Rennes)

The researchers, led by Prof. Cyril Poriel, say that the emissive layer was developed using a rational molecular design. The impact of the phosphorescent emitter on the ambipolarity of the charge transport is particularly evidenced and appear as a key concept in the high performance that was achieved.

 
Read the full story Posted: Oct 14,2022