TCL CSOT is expected to announce its long-anticipated investment in Gen 8 inkjet-printed OLED (IJP OLED) production within the next two months. Zhou Mingzhong, Head of Technology Planning at TCL CSOT, confirmed the timeline during an interview following the Seoul Display Business Forum. He stated that the formal announcement would take place between August and September.
The company has already achieved key technical milestones with its inkjet OLED technology. Zhou revealed that TCL CSOT panels have surpassed 350 pixels per inch (PPI) in resolution. He added that the blue OLED device’s LT95@100nits lifespan is expected to reach 400 hours by 2026, a tenfold improvement compared to 2020 levels. The blue sub-pixel will also match the size of the red and green sub-pixels, addressing a common imbalance in traditional FMM OLED designs.
TCL CSOT uses a full RGB sub-pixel arrangement with equally sized pixels. The company reports a significantly higher aperture ratio for its inkjet OLEDs, three times greater than that of conventional FMM OLEDs. This advancement improves brightness, energy efficiency, and display durability.
The company showcased a range of potential applications during recent exhibitions. These include a 6.5-inch smartphone panel with 325PPI, a 14-inch 2.8K laptop screen with 243PPI, a 27-inch 4K monitor with 163PPI, and a 65-inch 8K TV panel with 136PPI. These prototypes demonstrate TCL’s ability to scale inkjet OLED across multiple form factors.
TCL CSOT currently operates a Gen 5.5 inkjet OLED line at its T5 facility in Wuhan. In late 2024, the company produced a 21.6-inch medical-grade OLED panel using inkjet printing. However, the Gen 8 project, referred to as the T8 Project, marks a significant step forward in commercial-scale production.
Industry sources told The Elec that the announcement was initially expected in July but has been slightly delayed, possibly due to ongoing coordination with local government authorities. Once finalized, the Gen 8 investment could help TCL CSOT differentiate itself from South Korean rivals that continue to focus on FMM and open metal mask (OMM) OLED technologies.
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