LG Display uses Deuterium to make OLED TVs 30% brighter

Just days before CES 2022, LG Display, the company that makes the OLED panels used by Sony, LG Electronics, Vizio and virtually all other OLED TV manufacturers, has created a new OLED display, which it calls the OLED EX. The new panels incorporate deuterium into the manufacturing process, which LG Display claims can make them 30% brighter than the OLED panels used in current large TVs. The company plans to produce OLED EX panels at two of its OLED factories starting in the second quarter of 2022.

Deuterium is an isotope of hydrogen with twice the mass of a regular hydrogen atom, and LG Display uses deuterium compounds to improve the efficiency of its organic LEDs, which allow them to emit a stronger light.

The models stand next to a demo of LG Display's OLED EX panel.
LG screen

Although abundant in terms of pure quantity, deuterium can be difficult to acquire, as only one atom of deuterium is found in about 6,000 common hydrogen atoms in seawater. But LG Display claims to have figured out how to extract deuterium from water and apply it to organic light emitting devices.

The company has also created “personal algorithms” for its OLED EX panels, based on machine learning technology, which it says can predict the usage of up to 33 million organic LEDs. This leads to more precise control of the display’s power supply. The algorithms and deuterium compounds are combined to improve the stability and efficiency of the organic light emitting diode.

In addition to OLED EX displays that offer better, brighter images, LG Display says the new panels allow for even slimmer TV designs with edges as small as 4 millimeters. Previous generations of OLED panels required at least 6 mm of frame width.

In 2021, LG Electronics and Sony introduced OLED TV models that were significantly brighter than their previous generation of OLED TVs, bringing them within spitting distance of the kind of brightness we had normally only seen on QLED TV models from Samsung and Hisense. If LG Display’s OLED EX panels can be 30% brighter, it could mean that QLED is losing one of its last remaining benefits in its ongoing war with OLED.

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