LG Chem developed new technologies which can be used for foldable displays using new materials technologies & its accumulated coating technologies because it enters the next-generation materials market in earnest.
Regarding this, LG Chem announced that it had developed cover-window for foldable IT devices called ‘Real Folding Window’ that applied specially developed coating materials to form the surface as hard as glass, while the folding parts as flexible as plastic.
Cover windows are core materials located on the outermost a part of IT devices to guard the display from impact, while also delivering clear images.
It is featured by not only its durability & transmittance, but also the curved characteristics which can be folded flexibly.
A speaker from LG Chem said, “Unlike existing polyimide films & tempered glass-type materials, the cover-window that applied LG Chem’s new coating technologies will maximize flexibility, while also providing optimized solutions for foldable phones like making improvements to chronic issues like fold impressions on the connecting a part of the screen.”
▣ Core next-generation material which will lead the foldable market with distinguished performance
The ‘Real Folding Window’ that LG Chem developed coated a latest new material at a thickness of a few-dozen micrometers (㎛) on each side of PET film, which may be a sort of thin plastic, to reinforce heat-resistance & mechanical properties of plastic materials.
It is thinner compared to existing tempered glass and has an equivalent hardness, but no cracking on the screen. T
he price competitiveness is superior compared to existing polyimide film and thanks to its outstanding flexibility, durability is maintained completely even when folding quite 200,000 times. LG Chem also made significant improvements to the fold lines that occur on the folding parts of the screen.
In particular, while currently commercialized cover windows are optimized for in-folding methods in-which screen folds inwards, LG Chem’s ‘real folding window’ has the advantage that it also can be used for out-folding methods where the screen folds outwards.
LG Chem is additionally developing technologies to-produce a thin ‘Real Folding Window’ with only coating & not needing PET films.
Coating-method products without PET films are expected to be applied in foldable phones & rollable IT devices, etc. that need to be very thin.
LG Chem identified customer needs for cover-window materials like being thin, having a clean appearance, & stable folding features & completed coating-type cover window technology development & verification, and plans to pro-cure mass-production abilities by 2022 and start full-scale sales of the merchandise from 2023.
Chang Do Ki (Vice President / Division Leader, IT Materials Division. Advanced Materials) commented, “Through real Folding Window that we newly developed, we were ready to take a step closer to resolving the pain points of consumers , and that we have already received proposals for joint projects from multiple clients.”
He added, “We will strengthen our partnerships with leading companies of the smartphone industry & expand our market starting with mobiles & going to new foldable applications like laptops & tablets.”
Meanwhile, consistent with the worldwide market survey company, Omdia, the foldable phone market is predicted to grow from 3.5 million units in 2020 to 50 million by 2026.
The Article originally published on LG Chem.