UDC Introduced Organic Vapor Jet Printing That Keeps the Life time and Efficiency of OLED Emitting Material

Mike Hack, vice president of UDC introduced solution process technology, OVJP (Organic Vapor Jet Printing) technology during the COLOR IS UNIVERSAL Session of “The 3rd OLED KOREA CONFERENCE” hosted by UBI Research.

Mike Hack emphasized “OVJP technology can still use OLED materials used for the deposition process unlike the existing ink-jet solution process, and FMM and solvent are unnecessary”.

Besides, he introduced UDC’s Novel BY Display Architecture. According to his announcement, this structure has increased the mask opening size for one-time 2 pixel deposition. Also, Novel BY Display Architecture features the alternate deposition of blue and yellow sub pixels instead of existing RGB, and red and green CF in half of yellow sub pixel is arranged in a vertical symmetrical fashion.

Mike Hack said “This structure maximized not only the fill factor of blue and yellow sub pixel but also the color reproduction rate, efficiency and life time of OLED panel”. He also mentioned it can reduce manufacturing costs due to the use of less than 3data per pixel and 2-step EML deposition(FMM).
Lastly, UDC closed its announcement adding that they aim at the development and commercialization of PH emitter and host.

Meanwhile, according to “Market Entry Analysis for Solution Process OLED” by UBI Research, the emitting material used for the ink-jet solution process employs a method of mixing various solvents in an emitting material used for the deposition process. It lowered the purity of a materials, thereby reducing emitting efficiency and life time. Despite this advantage, solution process can increase the usage efficiency of emitting materials without using color filter and manufacture large-screen OLED panels via RGB pixel structure without panel split through over Gen8 equipment. Due to this advantage, major panel companies are actively developing it and trying to achieve the preoccupancy of commercialization.

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