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Brief Communications

Nature 423, 136 (8 May 2003) | doi:10.1038/423136a

Open Innovation Challenges

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Electronic paper: Flexible active-matrix electronic ink display

Y. Chen, J. Au, P. Kazlas, A. Ritenour, H. Gates & M. McCreary

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Ultrathin, flexible electronic displays that look like print on paper are of great interest1, 2, 3, 4 for application in wearable computer screens, electronic newspapers and smart identity cards. Here we realize the fabrication of such a display on a bendable active-matrix-array sheet. The display is less than 0.3 mm thick, has high pixel density (160 pixels times 240 pixels) and resolution (96 pixels per inch), and can be bent to a radius of curvature of 1.5 cm without any degradation in contrast. This use of electronic ink technology on such an ultrathin, flexible substrate should greatly extend the range of display applications.