The linear source FMM evaporation can only provide 600ppi AMOLED devices because of the shadow effect so that new concept of FMM patterning technology is needed in order to fabricate the 2250ppi AMOLEDs. Recently, the plane source FMM evaporation techniques has been developed to show a dramatically suppressed shadow effect and to measure the 0.18um of shadow distance and Hwang's mixing for the new way of EML layer process. The green color OLED device has been fabricated by the plane source evaporation to study the emission property for the first time. In addition, the fabrication process of the plane source FMM evaporator has been discussed for the 2250ppi flexible AMOLED.

The AMOLED has a limitation in ppi(pixel per inch) resolution due to the shadow phenomenon in doing evaporation deposition process and the QD-OLED TV device has a limitation in substrate size due to the glass bending during evaporation deposition process. Using the plane source evaporation deposition, the AMOLED resolution can be improved up to 2250ppi and the blue organic film of 12G size glass can be deposited uniformly. The mass production of very high ppi AMOLED and 77" QD-OLED TV will be realized by unique belt plane source evaporator which can supply the continuous plane source evaporation process.

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