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標題: 電濕潤顯示器製程與反應時間之影響
Pixelization Process of Electron Wetting Display and Response Time Investigation
作者: 程孝龍
Cheng, Hsiao-Lung
關鍵字: electrowetting;電濕潤;display;surface energy;surface tension;response time;Teflon;pattern define;顯示器;表面能;表面張力;反應時間;鐵氟龍;圖形定義
出版社: 精密工程學系所
引用: 1. 2. 3.Beni, G. and S. Hackwood (1981). "Electro-wetting displays." Applied Physics Letters 38(4): 207-209. 4.Hayes, R. A. and B. J. Feenstra (2003). "Video-speed electronic paper based on electrowetting." Nature 425(6956): 383-385. 5.Heikenfeld, J. and A. J. Steckl (2005). "Intense switchable fluorescence in light wave coupled electrowetting devices." Applied Physics Letters 86(1): 011105. 6. 7. 8.ITRC/Jengshing Kao、Mingyu Lin, Yi-Chiuen Hu, Chih-Sheng Yu, Heng-Cang Hu ,IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. 25, NO. 2, FEBRUARY 2006 9.Bohringer, K. F. (2006). "Modeling and Controlling Parallel Tasks in Droplet-Based Microfluidic Systems." Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on 25(2): 334-344. 10.Kuiper, S. and B. H. W. Hendriks (2004). "Variable-focus liquid lens for miniature cameras." Applied Physics Letters 85(7): 1128-1130. 11.Roques-Carmes, T., R. A. Hayes, et al. (2004). "Liquid behavior inside a reflective display pixel based on electrowetting." Journal of Applied Physics 95(8): 4389-4396. 12.Steckl, A. J. and J. Heikenfeld (2004). Emissive electrowetting devices for 〖Hybrid I/O〗^TMdisplays. Lasers and Electro-Optics Society, 2004. LEOS 2004. The 17th Annual Meeting of the IEEE. 13. 14. 15. 16.Chen, J. H. and W. H. Hsieh (2006). "Electrowetting-induced capillary flow in a parallel-plate channel." Journal of Colloid and Interface Science 296(1): 276-283.
本研究旨在設計一種新穎的電濕潤顯示器製程方式以達成價廉且適合大量生產之需求,並探討在此製程方式下,不同的條件(如驅動電壓、油墨量等)對於反應時間的變化。首先會介紹所需使用的設備,所作改裝使用的原理,以及自製儀器的性能驗證,之後採用前述設備進行製程與測量。最終,本研究達成了控制鐵氟龍擋牆高度與形狀定義的方式、不同驅動頻率對驅動電濕潤顯示器反應狀況的影響、 不同濃度油墨造成的力學特性差異的討論以及不同的油墨厚度造成顯示器反應速率的變化的結果。

Electrowetting display (EWD), called electrowetting light valve (ELV), is a new display technology which started from 1980's. In 2003, Philips announced a new structure of electrowetting display, with hydrophobic and hydrophilic material, oil films, dyes, water and a conductive substrate. By applying voltage on the device, it makes the changes of the hydrophobic substrate surface energy and white area, and could be a display instrument.
By changing surface energy, it verifies the area covered by oil film and takes effect of changing light transparency of the electrowetting display. Therefore, electrowetting display makes great advantages of fast response time (less than 10 ms), wide viewing angle, and cost less processes. The EWD should be a replacement of LCD if the oil black could be developed.
In this thesis, a different method to process the EWD in a cheaper way for mass production has developed. Investigation of the response time in different driven voltages and thicknesses of the oil film of EWD samples be made. First, instruments of process and handmade equipments would be showed or proofed. Then, do the process and make samples. After that, measure the characteristics of EWD, and discuss the relationship of response time with different applied voltages or thicknesses of the oil film. With the investigation, a method of defining height and pattern of Teflon has found; influence of different driven frequency to the response of EWD has showed; the relationship of mechanical characteristics with different consistencies has discussed; and with different thickness of the oil films results the differences of EWD response time has presented finally.
其他識別: U0005-2508200809135100
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