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Volume: 17 | Article ID: art00067_2
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A Novel Application of Ink-Jet Printing Technology on Manufacturing Color Filter for Liquid Crystal Display
Kevin Cheng
Tz-Ya Yang
Victor Wang
Chien-Chang Lai
Kuo-Hua Wu
Jessen Chen
  DOI :  10.2352/ISSN.2169-4451.2001.17.1.art00067_2  Published Online :  January 2001
Abstract

An ink-jet printing apparatus was setup to manufacture color filters. The apparatus includes a X-Y- table supporting the substrate, and a set of drop-on-demand ink-jet heads arranged on the adjustable Z-axis for coloring the filter elements. The mechanical motor drivers provide movements for the relative displacement of the substrate with respect to the ink-jet head. A processing of making color filter is discharging the predetermined color ink to the substrate, and then drying the discharged ink to form the color filter pattern. To reduce defective products caused by variance on drop position, this apparatus is additionally equipped with an optical system to detect the substrate position. This system has verified the printing behavior of three commercial print heads, HP51626A, HP51629A, and HP51645A. An image observation of the drop spot center position deviation and spot size deviation were performed. The results show the deviation range of a drop spot is within 4.01 μm, 4.10 μm, and 4.75 μm for HP51626A, HP51629A, and HP51645A, separately. This observation suggests the distance between the substrate and printhead should be closer to hide the satellite spot within main spot. In addition, the drop spot profile needs further study in order to improve its distribution characteristic on a filter element.

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.2169-4451.2001.17.1.art00067_2
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Kevin Cheng, Tz-Ya Yang, Victor Wang, Chien-Chang Lai, Kuo-Hua Wu, Jessen Chen, "A Novel Application of Ink-Jet Printing Technology on Manufacturing Color Filter for Liquid Crystal Display"  in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP17),  2001,  pp 739 - 743,  https://doi.org/10.2352/ISSN.2169-4451.2001.17.1.art00067_2

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Copyright © Society for Imaging Science and Technology 2001
72010410
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(20010101)2001:2L.739;1-
nip_v2001n2/splitsection67.xml
/ist/nipdf/2001/00002001/00000002/art00067
Articles
A Novel Application of Ink-Jet Printing Technology on Manufacturing Color Filter for Liquid Crystal Display
ChengKevin
YangTz-Ya
WangVictor
LaiChien-Chang
WuKuo-Hua
ChenJessen
01012001
2001
2
739
743
2001
An ink-jet printing apparatus was setup to manufacture color filters. The apparatus includes a X-Y- table supporting the substrate, and a set of drop-on-demand ink-jet heads arranged on the adjustable Z-axis for coloring the filter elements. The mechanical motor drivers provide movements for the relative displacement of the substrate with respect to the ink-jet head. A processing of making color filter is discharging the predetermined color ink to the substrate, and then drying the discharged ink to form the color filter pattern. To reduce defective products caused by variance on drop position, this apparatus is additionally equipped with an optical system to detect the substrate position. This system has verified the printing behavior of three commercial print heads, HP51626A, HP51629A, and HP51645A. An image observation of the drop spot center position deviation and spot size deviation were performed. The results show the deviation range of a drop spot is within 4.01 μm, 4.10 μm, and 4.75 μm for HP51626A, HP51629A, and HP51645A, separately. This observation suggests the distance between the substrate and printhead should be closer to hide the satellite spot within main spot. In addition, the drop spot profile needs further study in order to improve its distribution characteristic on a filter element.