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Xiaojian Y.,Sichuan CCO Display Technology CO.
Digest of Technical Papers - SID International Symposium | Year: 2014

Passive Matrix Organic Diode is restricted to it's passive driving method, so the screen size and resolution is hard to be larger because of the brightness reduce with the row numbers. But PMOLED has simple fabrication process and less material cost compared to TFT-LCD and AMOLED panel. In this paper we deeply research the design of PMOLED panel, and finally we found a creative method to make the PMOLED panel larger and with higher resolution. Use our creative met hod we finally made a 3.5 inch PMOLED panel without bezel on right and left side, and so it can be scaled to make larger PMOLED with higher resolution. © 2014 Society for Information Display. Source


Yan X.,Sichuan CCO Display Technology CO. | Tian C.,Sichuan CCO Display Technology CO. | Jiang W.,Sichuan CCO Display Technology CO. | Xia W.,Sichuan CCO Display Technology CO. | Wei X.,Sichuan CCO Display Technology CO.
Journal of the Society for Information Display | Year: 2015

Passive matrix organic light emitting display is restricted to its passive driving method, so it is hard to make the screen size and resolution larger because the brightness is reduced with the row numbers and it needs a driver Integrated Circuit (IC) with high current supply. In order to make high resolution and large size Organic Light Emitting Display (OLED), companies invest much money to produce Active Matrix Organic Light Emitting Display (AMOLED). But compared with AMOLED, Passive Matrix Organic Light Emitting Display (PMOLED) has simple fabrication process, which does not need very complex Thin Film Transistor (TFT) backplane and also has less material cost. In this paper, we research the ordinary design of PMOLED panel, and finally, we found a novel design to diminish the dead space of PMOLED on the left and right sides. With that, we can stitch pairs of PMOLED unit together to make the PMOLED panel larger and have higher resolution. We also developed the manufacture process for this new type of PMOLED panel. Using our novel method, we finally made a 3.5 inch PMOLED panel with a resolution of 160 (RGB) × 240 and developed the driving method for this sample using two commercialized PMOLED driver chip and Microprogrammed Control Unit (MCU) chip. So with the novel method, we can make many PMOLED panel stitched together to make larger PMOLED with higher resolution. Passive matrix organic light emitting display is restricted to its passive driving method, so it is hard to make the screen size and resolution larger because the brightness is reduced with the row numbers and it needs a driver Integrated Circuit (IC) with high current supply. In order to make high resolution and large size Organic Light Emitting Display (OLED), companies invest much money to produce Active Matrix Organic Light Emitting Display (AMOLED). © Copyright 2015 Society for Information Display. Source

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