JOLED announced that TCL CSoT has invested 20 billion Yen (around $187 million USD) in the company, and has also signed an agreement to jointly develop OLED TV printing technologies.
This is a very interesting development. TCL has been a long time believer in inkjet printing for OLED displays, and the company has established Juhua Printing in 2016 (together with TianMa and other collaborators) as an "open-innovation platform" to develop ink-jet printing of OLED panels. JOLED was not involved as far as we know in this alliance - so has TCL given up on Juhua and is now aiming to rely on JOLED's technology?
JOLED has been focused on medium-sized displays (for monitors, automotive and signage), and in December 2018 JOLED demonstrated its first OLED TV prototype, a 55" 4K (3840x2160, 80 PPI) panel that offers a 120Hz refresh rate and a color gamut of 100% DCI (135% sRGB). The OLED panel was printed on JOLED's Transparent Amorphous Oxide Semiconductor (TAOS) backplane. In 2018 JOLED told us that it has no plans to produce large size OLEDs at this stage - and this TV is on display just to demonstrate JOLED's printing technology, but now obviously this has changed.
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