Abstract
We identify new methods for the roll-to-roll production of
flexible color filter arrays (CFA) for electronic displays.
Through the use of imprint lithography to define “color wells”
we have enabled inkjet deposition as a means to generate CFAs,
despite the modest precision attainable with liquid drop
placement. In this paper, we outline the imprint lithography
process and color well design for template production. The
advantage of printing the filter array within a predetermined
template is demonstrated, and analysis of their structure and
optical properties is presented. CFAs, produced by this
technique, provide one means to realize color reflective
displays. Application of filters produced by the new process to
a 3.8″ color VGA (120 micron sub pixel pitch)
E-ink based display platform is discussed.
© 2011 IEEE
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