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標題: | 油溶性聚異丁烯衍生高分子分散顏料奈米粒子應用於電濕潤顯示器 Fabrication of Pigment-Based Electrowetting Display by Polyisobutylene-Amidoamine Disperants |
作者: | Tzu-Chien Lee 李姿蒨 |
指導教授: | 林江珍(Jiang-Jen Lin) |
關鍵字: | 顏料,碳黑,聚異丁烯,癸烷,分散劑,電濕潤顯示器, Pigment,Carbon black,Poly(isobutylene),decane,dispersant,electrowetting display, |
出版年 : | 2014 |
學位: | 博士 |
摘要: | 在台灣,平面顯示器產業不僅帶動我國面板產業的榮景與熱潮,也曾創造出經濟的奇蹟。而今,卻面臨著高風險、低投資報酬率等問題,雖著重於投入漸進式成本與製程之改良,但成效仍不及市場價格之持續下探,相關產業開始思考未來的發展方向,以尋找產業新契機。平面顯示器領域的競爭趨於白熱化,全球皆已陸續投入及展開下世代新興顯示技術的研發與創新應用,在這新興領域尚有許多可以發揮的部份,且有機會將顯示器產業從高量產製造,轉型為智慧生活創新應用之先驅。在此,我們提出油溶性聚異丁烯衍生高分子分散顏料奈米粒子首次應用於電濕潤顯示器之研究論文,作為次世代顯示器朝向高差異化、友善環境與低成本等相關技術開發研究之參據。本研究主軸以章節一:聚異丁烯高分子型分散劑於癸烷油相系統碳黑及顏料之分散機制與章節二:聚異丁烯高分子分散油性顏料應用於電濕潤顯示器之畫素驅動等二項主要課題探討,研究之內容以藉由聚異丁烯衍生高分子分散劑有效地分散油溶性顏料於癸烷,應用於油相顏料系之電濕潤顯示器的顯色介質之畫素驅動。聚異丁烯衍生高分子分散劑系列是由不同的聚異丁烯疏水鏈段長度和各種單官能基及雙官能基胺來製備,結構上採疏水性高的聚異丁烯的尾端用以制定的分散劑,將顏料粒子均勻的分散在癸烷中,其為奈米尺寸的結構,分散後的顏料粒徑約為100nm,且為2-3釐泊的低粘度,將備製的油墨塗佈於5 x 5公分的電濕潤顯示元件中,在使用交流電驅動電壓約15-20伏時其開口率可達80%,藉由快速的反應時間和色彩飽和的優勢,對於使用油相顏料系之顯色介質的電濕潤顯示器,是作為未來透明顯示具市場潛力的新選項,亦可為發展下世代先進顯示與電子材料相關領域應用的關鍵技術基礎。 In Taiwan, the development of flat display devices has advanced the panel industry into prosperity and trend, and created an economic miracle in the past. However, this industry is facing high risk low-return investment and other related problems. By applying multi-incremental-based investment strategy and improving the manufacture processing, but results were unsatisfactory. The market price margin continues to decline. The related industries begin to evolve new directions of future industry development and seek for the next opportunity to make profit. Currently, the competition of flat panel displays will turn into fierce competition. The global community has been gradually investing on R&D for the next generation product. Many parts of flat panel displays remain to be explored and developed in this emerging market. It is possible that we could make our display industry from a high-efficient mass manufacturer into a pioneer of smart life innovation application supplier. In this thesis, a new strategy has been taken to investigate the pigment-based colorants for the basic design in the electrowetting devices. The advantages of using pigments over dyes had been realized in the development of color filters and printing industries. We synthesized a new class of oily polyisobuytylene-functionalized derivatives as the dispersants for pigment dispersions. We also fabricated for the first time the electrowetting devices and studied the high differences, environmental-friendly issue, low-cost issue, and other critical technologies. The thesis is divided in two chapters (1) Tailoring Pigment Dispersants with Polyisobutylene Twin-Tail Structures for Electrowetting Display Application: We have designed a class of highly hydrophobic dispersants for finely dispersing carbon black and organic pigment nanoparticles in highly oily mediums. The structural design and the synthesis of polymeric dispersants with oily polyisobutylene molecular tails and multiple anchoring heads is essential for homogenizing the pigment dispersion in oil/water and subsequently exhibiting a high color resolution, suitable for EWD uses. (2) First Fabrication of Electrowetting Display by Using Pigment-in-Oil Driving Pixels: We report the first fabrication of pigment particle-based electrowetting display (EWD) by using the requisite poly(isobutylene)-imide (PIB-imide) for effectively dispersing insoluble colorant in decane/water system. The series of PIB-imide dispersants were prepared from the amidation/imidation of PIB-succinic anhydride with different hydrophobic lengths and a suitable amine. The structurally tailored dispersants by adopting the highly hydrophobic PIB tails allows the formation of homogeneous dispersion of nano-sized pigment particles in decane and clearly separated from water. The pigment dispersion at particle size of ca. 100 nm and a low viscosity of 2–3 cps was obtained and fabricated into an EWD device which was operated at AC voltage driver of 15–20 V in achieving a maximum aperture ratio of 80%. With the advantage of both fast response time and vivid color, the pigment-based EWD, stands out as a promising new option for future transparent display and serves as a critical foundation for the next-generation advanced display and electrical materials applications. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/58300 |
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顯示於系所單位: | 高分子科學與工程學研究所 |
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