TCL CSOT shows its latest OLED, MicroLED and QD-EL displays at Displayweek 2024

TCL CSOT demonstrated its latest displays, technologies and prototypes at Display Week 2024. The company is focused on inkjet printing technologies, and a lot of the displays on show were indeed printed.

So first up, we TCL demonstrated a 14" 2880x1800 400 nits 30-120Hz ink-jet printed LTPO AMOLED display. The display is produced on a glass substrate, with thin film encapsulation (a 'hybrid OLED').


TCL had a rollable display on show, also 14" in size, that has a rolling radius of 3.3 mm, and a sliding distance of 60 mm (when closed, it is 12.6" in size). The display (produced using an evaporation process) has a 4K (3840x2400) resolution (323 PPI), 120Hz, and a brightness of 2,500 nits (peak).

TCL also demonstrated a larger printed OLED, a 21.6" 4K (3840x2160) 350 nits (peak) LTPS display. TCL produced this display on its 5.5-inch production line, which will soon ramp to mass production. TCL targets professional desktop monitor applications for this panel.

TCL has also demonstrated its 65" 8K printed OLED display, this is a curved panel that offers up to 800 nits of brightness and 120Hz. 

Another display on show is a 6.9" high efficiency foldable LTPO AMOLED, that is a polarizer-free display (which TCL brands as PLP) and also has a tandem architecture. The PLP and Tandem architecture can reduce power consumption by almost 50% (at 500 nits), and also increase the brightness up to 2,200 nits. The display is protected by ultra-thin glass.

TCL also showed a 7.85" tri-folding tandem smartphone AMOLED, and another 7.85" smartphone LTPO AMOLED with an embedded trinamiX's face authentication sensor.

The company also showed 'medical ultrasound suitcase' application, that has a 21.6" 4K (3840x2180) 350 nits inkjet-printed OLED. The display offers a wide color gamut (>82% BT.2020) anad 10-bit gray-scale segmentation to accurately display medical information.

The company also had an impressive 163-inch 4K tiled MicroLED display on show, that offered very high brightness (10,000 nits). This is actually a commercial product, the TCL X11H Max, priced at $110,000

TCL also showed two automotive microLED display- a 5.9" 120Hz 450x600 (127 PPI) 4,000 nits LTPS microLED automotive display prototype, a "B-Pillar" display, and a square 5.6" 120Hz 2000 nits 500x500 (127 PPI) 'floating display'.

Finally, TCL-CSOT showed a 14" 2.8K inkjet-printed QD-EL display, that offers 30-120Hz VRR refresh rates and a 85% BT2020 color gamut. The impressive display won SID Displayweek's People's Choice Award. TCL's CEO gave a keynote speech at Displayweek, saying how this is an early-stage technology that still has a lot of challenges before it can be commercialized - mainly the lifetime of the blue material. To encourage collaboration and innovation, TCL CSOT announced the Blue Star Project with a $1 million prize to incentivize collaboration and accelerate breakthroughs in QD-EL technology.  
TCL CSoT 14" inkjet-printed QL-EL display, Displayweek 2024

Posted: May 27,2024 by Ron Mertens