Flexible TFT backplane development for extremely small bending radius with organic ILD and novel TFT structures
Taewoong Kim,
Younggug Seol,
Sunhee Lee
et al.
Abstract:A new flexible low‐temperature polycrystalline silicon thin film transistors (LTPS TFTs) on PI substrate with organic ILD layer, island TFT, and TFT channel perpendicular to stress direction was proposed. AMOLED display panel manufactured with organic ILD did not show any visible degradation of panel image after outward rolling cycles of 200,000 at rolling radius of 4 mm or inward folding cycles of 200,000 at folding radius of 1 mm. Another novel structure of TFT with channel perpendicular to stress direction … Show more
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