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We have fabricated active-matrix organic light emitting diode (AMOLED) test arrays on an optically clear high-temperature flexible plastic substrate at process temperatures as high as 285 °C using amorphous silicon thin-film transistors (a-Si TFTs). The substrate transparency allows for the operation of AMOLED pixels as bottom-emission devices, and the improved stability of the a-Si TFTs processed at higher temperatures significantly improves the reliability of light emission over time. [ABSTRACT FROM AUTHOR]

We describe encapsulated passive matrix, video rate organic light-emitting diode (OLED) displays on flexible plastic substrates using a multilayer barrier encapsulation technology. The flexible OLED (FOLED[SUPTM]) displays are based on highly efficient electrophosphorescent OLED (PHOLED[SUPTM]) technology deposited on barrier coated plastic (Flexible Glass[SUPTM] substrate) and are hermetically sealed with an optically transmissive multilayer barrier coating (Barix[SUPTM] encapsulation). Preliminary lifetime to half initial luminance (L[SUB0] ∼ 100 cd/m[SUP2]) of order 200 h is achieved on the passive matrix driven encapsulated 80 dpi displays; 2500 h lifetime is achieved on a dc tested encapsulated 5 mm[SUP2] FOLED test pixel. The encapsulated displays are flexed 1000 times around a 1 in. diameter cylinder and show minimal damage. [ABSTRACT FROM AUTHOR]