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Abstract
We demonstrate full color, top emission, active matrixOLED displays on flexible stainless 留学生论文代写steel substrates. The100 dpi QVGA displays are driven by LTPS TFTbackplane with excimer laser annealed poly-Si. To ourknowledge this is the world’s highest resolution full colorflexible AMOLED display on steel foil demonstrated todate. Encapsulation is by a multilayer thin film.

Keywords: OLED, organic light-emitting,phosphorescent, flexible, metal foil, stainless steel, topemission,active matrix, poly-Si, LTPS

1.Introduction
Portable communication devices are becoming ubiquitousas their functionality and convenience continue toimprove. A key component of such devices is the displayon which information is communicated. Most are made ofglass and are therefore breakable. The future of displaysfor portable applications is flexible (or conformable) andrugged. Significant progress has recently been made inthe areas of flexible emissive1 and reflective2 displays, theformer owing to the flexibility of both small molecule3and polymer4 OLEDs. In this paper, we report ourprogress on the development of full color active matrixOLED (AMOLED) displays on steel foil substrates forlow power consumption, high information content, ruggedand flexible/conformable applications.While most FOLED work to date has been on thin plasticfilms, the maximum process temperature of the backplaneis limited by the thermal properties of the substrate.Conventional Si-based TFT backplane processes forAMOLED displays require temperatures in excess of300C which cannot be supported by current practicalplastic substrate candidates. For early demonstration of flexible or conformable AMOLED displays, we have therefore chosen a steel foil substrate.

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