2016
DOI: 10.1002/jsid.404
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A foldable OLED display with an in-cell touch sensor having embedded metal-mesh electrodes

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.

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Cited by 23 publications
(16 citation statements)
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“…[70][71][72][73][74][75][76][77][78][79][80][81][82][83] Very recently, OLED displays have been demonstrated to be durable upon bending in foldable smartphones in the very first attempts to commercialize foldable OLED displays. [84][85][86][87][88][89][90][91][92][93][94][95] However, when it comes to creating durable OLED displays with a large area (including televisions), further improvement is deemed necessary, both in terms of materials and device structures, to maintain uniform images within several million OLED pixels. [96][97][98][99][100][101][102][103][104][105] F I G U R E 1 A, Illustrations of a typical organic light-emitting device structure and, B, a flat energy band structure.…”
Section: Introductionmentioning
confidence: 99%
“…[70][71][72][73][74][75][76][77][78][79][80][81][82][83] Very recently, OLED displays have been demonstrated to be durable upon bending in foldable smartphones in the very first attempts to commercialize foldable OLED displays. [84][85][86][87][88][89][90][91][92][93][94][95] However, when it comes to creating durable OLED displays with a large area (including televisions), further improvement is deemed necessary, both in terms of materials and device structures, to maintain uniform images within several million OLED pixels. [96][97][98][99][100][101][102][103][104][105] F I G U R E 1 A, Illustrations of a typical organic light-emitting device structure and, B, a flat energy band structure.…”
Section: Introductionmentioning
confidence: 99%
“…Moreover, it is required to equip sensor devices in FPDs to realize interactive displays . Conventionally, touch panels are equipped outside the FPDs . However, if the sensor devices can be made by thin‐film devices that have been already utilized for FPDs, they can be made without additional cost.…”
Section: Introductionmentioning
confidence: 99%
“…5,6 Conventionally, touch panels are equipped outside the FPDs. [7][8][9][10][11][12][13] However, if the sensor devices can be made by thin-film devices that have been already utilized for FPDs, they can be made without additional cost. Therefore, thin-film devices are again promising for sensor applications especially for interactive displays.…”
Section: Introductionmentioning
confidence: 99%
“…Touch panel displays are more convenient and popular than other input devices due to their instinctive input method as a human–machine interface. The entire display surface of most touch panel displays is covered with a matrix of touch sensors such as resistors or capacitors or embedded optical sensors . Nowadays, display screens are becoming larger and larger, which makes touch sensors requiring more sensor units.…”
Section: Introductionmentioning
confidence: 99%