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Volume: 23 | Article ID: art00093_2
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Integration and Modeling for Ink-Jet Printing of Cholesteric Liquid Crystal in a Roll-to-Roll System
Wanda W. W. Chiu
Wei-Hsun Huang
Chen-Chu Tsai
Chih-Jian Lin
Cheng-Yi Wang
Kevin Cheng
  DOI :  10.2352/ISSN.2169-4451.2007.23.1.art00093_2  Published Online :  January 2007
Abstract

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.

Journal Title : NIP & Digital Fabrication Conference
Publisher Name : Society of Imaging Science and Technology
Publisher Location : 7003 Kilworth Lane, Springfield, VA 22151, USA
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 DOI 10.2352/ISSN.2169-4451.2007.23.1.art00093_2
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Wanda W. W. Chiu, Wei-Hsun Huang, Chen-Chu Tsai, Chih-Jian Lin, Cheng-Yi Wang, Kevin Cheng, "Integration and Modeling for Ink-Jet Printing of Cholesteric Liquid Crystal in a Roll-to-Roll System"  in Proc. IS&T Int'l Conf. on Digital Printing Technologies and Digital Fabrication (NIP23),  2007,  pp 890 - 893,  https://doi.org/10.2352/ISSN.2169-4451.2007.23.1.art00093_2

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Copyright © Society for Imaging Science and Technology 2007
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NIP & Digital Fabrication Conference
nip digi fabric conf
2169-4451
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA
2169-4451(20070101)2007:2L.890;1-
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Articles
Integration and Modeling for Ink-Jet Printing of Cholesteric Liquid Crystal in a Roll-to-Roll System
ChiuWanda W. W.
HuangWei-Hsun
TsaiChen-Chu
LinChih-Jian
WangCheng-Yi
ChengKevin
01012007
2007
2
890
893
2007
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.