Abstract
AbstractThis study developed a technology for a vertical field‐effect transistor (VFET) incorporating c‐axis aligned crystal oxide semiconductor on a Gen 3.5 glass substrate. VFETs, with a channel length of 0.5 μm, demonstrated stable characteristics with minimal variation, higher on‐state current compared with low‐temperature polysilicon FETs, and extremely low off‐state leakage current. A prototype 513‐ppi organic light‐emitting diode display that features a red, green, and blue stripe arrangement and includes an internal compensation circuit with a configuration of six transistors and two capacitors was fabricated by harnessing the advantageous features of VFETs. Such a display was previously unattainable with planar FETs. Thus, the developed VFET technology presents a viable pathway for achieving ultrahigh‐resolution panels on glass substrates.
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