Browsing by Author "Li, Chi-Hsin"

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Large area color filter fabrication by using ink-jet printing technology
(2008)
Wu, Siang-Jhih
;
Cheng, Jung-An
;
Chen, Huang-Ming P.
;
Shin, You-Ru
;
Shieh, Han-Ping D.
A novel ink jet printing process without additional photolithography process for large area color filter fabrication has been developed in this study. A 100x100 mm(2) model of 32" color filters was fabricated for evaluation. New developed RGB inks were able to achieve 73% NTSC standard with the thickness of R, G, and B films at 1.80, 1.90, and 1.80 pm, respectively. The overflow issue can be solved by surface pretreatments, and color inks formulation.
Rib-less Ink-Jet-Printed 4-in.-Panel Color-Filter Fabrication
(2009)
Chen, Huang-Ming P.
;
Wu, Siang-Jhih
;
Cheng, Jung-An
;
Tong, Feng-Ching
;
Shieh, Han-Ping D.
A 4 "color filter panel was successfully prepared by rib-less ink jet printing process. The smeared ink issue can be controlled by surface treatment on both Cr and glass with similar contact angle. The color line formation can be prepared by either two-step printing process at room temperature or one-step printing at elevated temperature. The thickness of red, green and blue films were about 1.2 mu m, 1.0 mu m and 1.0 mu m, respectively. The panel's NTSC value was estimated at 53.5 +/- 0.7%.
Solvent-less Repair Inks for Color Filters
(2011)
Chen, Huang-Ming Philip
;
Tang, Feng-Chin
;
Li, Chi-Hsin
;
Hsieh, Wen-Jen
;
Lin, Yu-Chuan
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-of-the-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.