IEEE Electron Device Letters · 2006 · 194 citations · 6 references
EngineeringElectrical EngineeringMaterials ScienceElectronic MaterialsMicroelectronicsSemiconductor DevicesLight-emitting DiodesOrganic Electronic MaterialsOrganic SemiconductorsSemiconductor Device MaterialsThin-film MaterialsThin-film TransistorsFlexible Light-emitting DiodesOrganic ElectronicsOrganic Light-emitting DiodesOrganic Thin FilmsOrganic Thin-film TransistorsPassivationPhosphorescent MaterialsSilicon Dioxide
Active matrix organic-light-emitting-diode (AM OLED) panels, driven by organic thin-film transistors (OTFT), have been successfully fabricated on a flexible plastic substrate. The pixel circuit consists of two bottom-contact pentacene OTFTs working as switching and driving transistors. The panel has 16 /spl times/ 16 pixels, each of which have an OLED using a phosphorescent material with an emission efficiency of 30 cd/A. A tantalum oxide (Ta/sub 2/O/sub 5/) film with a dielectric constant of 24, prepared by the anodization of Tantalum (Ta), was used as the gate insulator of the OTFTs. The passivation layer on the OTFTs was formed by a layer of silicon dioxide (SiO/sub 2/) and two layers of polyvinyl alcohol. Using OTFTs with a Ta/sub 2/O/sub 5/ gate insulator, the authors have realized a flexible active matrix OLED panel driven with a low voltage of -12 V.
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A. Dodabalapur, Zhenan Bao, A. Makhija et al. · Applied Physics Letters · 1998 · 330 citations
Engineering, Electrical Engineering, Materials Engineering +17
Pentacene TFT driven AM OLED displays
Lisong Zhou, Sungkyu Park, Bo Bai et al. · IEEE Electron Device Letters · 2005 · 102 citations