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A foldable OLED display with an in‐cell touch sensor having embedded metal‐mesh electrodes |
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| Authors: | Kazunori Watanabe Yuji Iwaki Yutaka Uchida Daiki Nakamura Hisao Ikeda Masahiro Katayama Takayuki Cho Hiroyuki Miyake Yoshiharu Hirakata Shunpei Yamazaki |
| Affiliation: | 1. Semiconductor Energy Laboratory Co., Ltd., Atsugi, Japan;2. Advanced Film Device Inc., Tochigi‐shi, Tochigi, Japan |
| Abstract: | 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. |
| Keywords: | touch sensor metal‐mesh in‐cell foldable OLED display CAAC‐IGZO |