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Kateeva signs deal with Sumitomo on inkjet RGB OLED printing

Posted: 15 Jan 2015 ?? ?Print Version ?Bookmark and Share

Keywords:RGB? OLED? YIELDjet? PLED?

Kateeva has partnered with Sumitomo Chemical Company Ltd to pair Sumitomo's inks with Kateeva's YIELDjet platform for easier deployment of organic light-emitting diode (OLED) TVs to market.

The companies will co-develop high quality reference data for customers. The YIELDjet FLEX product enables low-cost, high-yield thin film encapsulation (TFE) for flexible OLED displays. It is touted as the first product to emerge from the YIELDjet platform and offers an alternative to older vacuum evaporation technologies. The same platform can be applied to print RGB OLED TVs.

Sumitomo Chemical's OLED material, which is the Polymer OLED (PLED) type, is suitable for printing, and enables effective mass production of large-size OLED displays.

Kateeva Chief Technology Officer Steven Van Slyke called the partnership a key step forward for the OLED industry. He noted: "OLED TVs have long captivated consumers but remain beyond reach for many due to high production costs. Inkjet printing can change that, given the right combination of materials and equipment."

The YIELDjet platform is a strong fit, particularly for its pure-nitrogen process chamber. Nitrogen is the ultimate OLED processing environment. It shields OLED materials from moisture and air (known degraders of quality), and enables consistently superior device lifetime, especially crucial T95 lifetime. T95 lifetime describes the time it takes for a display element to lose 5 per cent of its initial brightness. The most difficult customer spec to meet, it determines the resilience of the display against image burn in. The innovative nitrogen processing technology found in Kateeva's YIELDjet platform improves T95, thereby enabling customers to more rapidly move inkjet OLED into mass production.

This Kateeva-Sumitomo partnership is non-exclusive. Its broader aim is to equip the global display industry with novel tools and technologies to help mainstream OLED TVs.





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