Flexible OLED display with 620°C LTPS TFT and touch sensor manufactured by weak bonding method
Tsung‐Ying Ke, Ting Kang, Chih‐Tsung Lee, Chunyu Chen, Wei‐Jen Su, Wenting Wang, Zih‐Shuo Huang, Jen‐Chih Wang, Shou‐Te Hsu, Chengliang Wang, Yen‐Huei Lai, Wan‐Tsang Wang, Chun‐Hsin Liu, Kun‐Yu Lin
Abstract
Abstract By weak bonding method, the first organic light‐emitting diode (OLED) display with 620°C low‐temperature poly‐silicon (LTPS) thin film transistor (TFT) and touch sensor, without polyimide (PI) substrate, formed on glass substrates is transferred to non‐PI flexible substrates. After transfer, the display image is free from defect, and touch sensor functions normally. Compared with device made on PI substrate, the advantages of device stability and pitch variation by transferring are shown.
Topics & Concepts
Thin-film transistorOLEDMaterials scienceSubstrate (aquarium)PolyimideOptoelectronicsTransistorDiodeComposite materialElectrical engineeringLayer (electronics)VoltageEngineeringOceanographyGeologyThin-Film Transistor TechnologiesOrganic Electronics and PhotovoltaicsOrganic Light-Emitting Diodes Research