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Integration and Modeling for Ink-Jet Printing of Cholesteric Liquid Crystal in a Roll-to-Roll System

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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 bi-stable 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 (NEL) 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”, bi-stable color Ch-LC display by ink-jet printing with the contrast ratio being about 9:1, in QVGA resolution.

Document Type: Research Article

Publication date: 2007-01-01

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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