Flexible substrates are becoming more important in printed electronics and displays. The era of ink-jet fabrication is coming because of its low cost, high throughput and the feasibility of manufacturing on flexible substrate. Its innate non-contact characteristic and digitalization of patterning make it a bright star for future manufacturing. In this paper, a bistable flexible electronic display has been evaluated based on the roll-to roll ink-jet printing technology with a photographic film coating technique assistant. This roll-to-roll continuous process, where the mechanical design follows the Normal Entry Law (MEL) with a different roller type, was surveyed in order to optimize the web spreading. This included factors like friction, roller porosity, roller diameter, speed; and the roller layout. In addition, we estimate the manufacturing running cost to be about 666 NT for a continuous 10.4" Ch-LC R2R ink-jet printing fabrication. In this paper, we successfully demonstrate a 4.1", bistable color Ch-LC display by ink-jet printing with the contrast ratio being about 9:1, in QVGA resolution.
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