An 8.67-inch foldable OLED display with an in-cell touch sensor, in which metal-mesh sensor electrodes are formed in a counter substrate of the display, is fabricated. The OLED display demonstrates normal operation after 10 5 folding operation with 5 mm as the radius of curvature.
A foldable organic light‐emitting diode display integrating a touch sensor is fabricated. The touch sensor has an in‐cell structure where metal‐mesh sensor electrodes are formed in a counter substrate. It is demonstrated that touch on the entire panel surface, including a bent portion, is detected and that the touch panel operates correctly after 100,000 folding operations with a radius of curvature of 5 mm.
We fabricated a 1.50‐inch, 3207‐ppi OLED display with drivers capable of 32‐division driving, which is achieved by monolithically stacking OSFETs over SiFETs. Taking advantages of minute OSFETs with a high withstand voltage, Si‐OS connection regions were provided in subpixels to connect Si drivers and OS pixel arrays at given positions.
In this paper, we fabricate a 1.50‐inch, 3207‐ppi prototype OLED display with drivers capable of 32‐division driving, which is achieved by monolithically stacking CAAC‐OS FETs over SiFETs. This structure enables a narrow bezel and two‐dimensional driver arrangement, leading to independent driving of 32 pixel arrays with divided source and gate lines.
We discuss the steps for obtaining a curved touch-enabled display by using a c-axis aligned crystalline oxide semiconductor, OLEDs, a flexible-display technology, and a capacitive touch screen. This result is a side-roll display in which the front and side surfaces are a single curved surface with a 4 mm radius.
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