In-cell adaptive touch technology for a flexible e-paper display

► Development of in-cell adaptive touch technology for microcapsule-type flexible electrophoretic display for the first time. ► The use of newly designed two types of a-Si:H photo-sensor arrays with different channel W/L on a stainless steel substrate to get better touch sensitivity depending upon the environmental light intensities. ► The use of the overall capacitive sensor to get rid of the inherent issue of photo-sensor related to shadow effects. ► Development of the hybrid-touch structure consisting of the overall capacitor as a switch and the two types of photo-sensor arrays for touch position, which can reduce power consumption effectively without decreasing image quality while maintaining slim, light-weight, and compact module architecture.