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http://dx.doi.org/10.4313/JKEM.2007.20.5.450

The Rheological Behavior and Dispersion Properties of Millbase for LCD Colorfilters  

Na, Dae-Yup (부경대학교 인쇄공학과)
Jung, Il-Bong (부경대학교 인쇄공학과)
Nam, Su-Yong (부경대학교 인쇄공학과)
Yoo, Choon-Woo (주식회사 제우스)
Choi, Yong-Jung (주식회사 제우스)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.20, no.5, 2007 , pp. 450-455 More about this Journal
Abstract
LCD color filters have been manufactured in a process called photolithography to date, but various printing methods have been studied currently in response to the trend of low-end LCD panels. Direct Printing Process is a suitable fabrication technique to develope pigment components whose dimensions are in nano. The success of this process depends on the systematic preparation of pigment millbase. Conventional millbase dispersions are constituted of the organic pigments, monomer, dispersant and solvents. An experimental study on the rheology of millbase dispersions is presented. Subsequently, this thesis attempts to find out the dispersive characteristics as well as the selection of pigments, monomers and dispersants in the part of millbase among the stages of manufacturing LCD color filters using the direct printing methods. The dispersive characteristics were shown through analytic devices such as PSA, Rheometer, etc.
Keywords
Direct printing; Millbase; Pigment; Dispersion; Rheology;
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