Update: It seems we were mistaken, this prototype is not a hybrid QD-OLED, but a 'regular' OLED. This is still an impressive development - a rollable inkjet-printed OLED display.

TCL and Juhua Printing demonstrated a 31" FHD inkjet-printed rollable hybrid QD-OLED TV prototype. The display uses an IGZO (Oxide-TFT) backplane and TCL says that it has an aperture ratio of over 50%, brightness of 200 nits and a 90% DCI-P3 color gamut.

TCL's hybrid display technology (which TCL calls H-QLED) uses a blue OLED emitter coupled with red and green QD emitters. All three emitter materials are combined and printed using ink-jet printing technology.

TCL H-QLED slide (OLED Korea 2019)

TCL believes, it seems, that commercial-level red and green QD emitters will be achievable in the future, but blue QD emission will be more difficult to develop, and hence it will rely on OLED emitters.

TCL and Juhua 31'' printed rollable OLED TV Prototype (CES 2020)

Juhua Printing was established in 2016 by TCL's CSoT and TianMa) as an "open-innovation platform" to develop ink-jet printing of OLED panels. Other collaborators in this platform include CEC-Panda and TADF developer Cynora.

Kyulux - Hyperfluoresence OLED emittersKyulux - Hyperfluoresence OLED emitters