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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.
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Document Type: Research Article

Publication date: 2007-01-01

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  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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