Solvent-less repair inks for color filters

Huang-Ming Chen, Feng Chin Tang, Chi Hsin Li, Wen Jen Hsieh, Yu Chuan Lin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Color filter (CF), one of the key components for liquid crystal display (LCD), is costly to make from repeated lithography processes. The defects may be created during the repeated lithography processes. The recycling defect CF panels are environmental unfriendly and not cost-effective process. CF repairing is an important cost-effective technical process to improve product yield. In this study, a solvent-less repaired ink system was studied. The optimized formulas of red, green, blue, and black inks have passed the quality control, reliability, and life-time tests. The new solvent-free ink system possesses the balance characteristics in liquid fluidic, UV reactivity, and color saturation. The energy has been conserved without high temperature process for removing organic solvent. The new system exhibits the state-ofthe- art fabrication process without unnecessary energy waste. As a result, the solvent-less CF repair inks offer a promising result for contributing to a low carbon process in the near future.

Original languageEnglish
Title of host publicationEmerging Liquid Crystal Technologies VI
Number of pages4
StatePublished - 22 Jan 2011
EventEmerging Liquid Crystal Technologies VI - San Francisco, CA, United States
Duration: 25 Jan 201126 Jan 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceEmerging Liquid Crystal Technologies VI
Country/TerritoryUnited States
CitySan Francisco, CA


  • Color filter
  • liquid crystal display
  • low carbon process
  • solvent-less repair inks


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