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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 蔡永傑 | |
dc.contributor.author | Yu-Hao Chen | en |
dc.contributor.author | 陳宇豪 | zh_TW |
dc.date.accessioned | 2021-06-17T08:17:07Z | - |
dc.date.available | 2024-08-20 | |
dc.date.copyright | 2019-08-20 | |
dc.date.issued | 2019 | |
dc.date.submitted | 2019-08-14 | |
dc.identifier.citation | 參考文獻
[1] Reinitzer F. Beiträge zur kenntniss des cholesterins. Monatshefte für Chemie/Chemical Monthly. 1888; 9: 421-441 [2] Lehmann O. Über fliessende krystalle. Zeitschrift für physikalische Chemie. 1889; 4: 462-472. [3] Wu ST. Nematic liquid crystals. Optical Engineering-New York-Marcel Dekker Incorporated. 1994; 47: 1-1 [4] Goodby JW, Leslie TM. Smectic liquid crystals, U.S. Patents. 1986; US4613209A [5] Friedel G. Les états mésomorphes de la matière. Annales de Physique. 1922; 9: 273-474. [6] Wu ST. Birefringence dispersions of liquid crystals. Physical Review A. 1986; 33: 1270 [7] Belyakov VA, Dmitrienko VEE. The blue phase of liquid crystals. Physics-Uspekhi, 1985; 28(7): 535-562. [8] Wright DC, Mermin ND. Crystalline liquids: the blue phases. Reviews of Modern physics. 1989; 61(2): 385. [9] Crooker PP. Plenary Lecture. The blue phases. A review of experiments. Liquid Crystals. 1989; 5(3): 751-775. [10] Rahman A, et al. Blue phase liquid crystal: strategies for phase stabilization and device development. Institute of Physics Publishing. 2015; 16: 21. [11] Atsushi Y. Material design for blue phase liquid crystals and their electro-optical effects. Royal Society of Chemistry Advances. 2013; 3: 25475. [12] Patel JS, Meyer RB. Flexoelectric electro-optics of a cholesteric liquid crystal. Physical review letters, 1987; 58(15): 1538. [13] Kikuchi H, Yokota M, Hisakado Y, Yang H, Kajiyama T. Polymer-stabilized liquid crystal blue phase. Nat Mater. 2002; 1: 64-68. [14] Yan J, Cheng HC, Gauza S, Li Y, Jiao M, Rao L, Wu ST. Extended Kerr effect of polymer-stabilized blue-phase liquid crystals. Applied Physics Letters. 2010; 96(7): 071105. [15] Samsung Develops World's First 'Blue Phase' Technology to Achieve 240 Hz Driving Speed for High-Speed Video (access date 23 April 2009). [16] Fujimori K, Narutaki Y, Kimura N. High Transmissive Advanced TFT-LCD Technology. Sharp Technical Journal. 2003; 34-37. [17] Liu KH, Cheng CY, Shen YR, Lai CM, Sheu CR, Fan YY, et al. A novel double gamma driving transflective TFT LCD. In Proceedings of the International Display Manufacturers Conference. 2003; 215-218. [18] Fan YY, Chiang HC, Ho TY, Chen YM, Hung YC, Lin IJ, Chang BC. A Single‐Cell‐Gap Transflective LCD. In SID Symposium Digest of Technical Papers. 2004; 35(1): 647-649. [19] Zhou F, Yang DK. Wavelength Divided Trans‐reflective Liquid Crystal Display. In SID Symposium Digest of Technical Papers. 2003; 34(1): 82-85. [20] Zhou F, Yang DK. Polymer Stabilized Electrically Controlled Birefringence Transreflective Liquid Crystal Displays. In SID Symposium Digest of Technical Papers. 2004; 35(1): 38-41. [21] Hisatake Y, et al. A novel transflective TFT-LCD using cholesteric half reflector. IDW’01 Digest. 2001; 129. [22] Kang SG, et al. Development of a novel transflective color LTPS‐LCD with cap‐divided VA‐Mode. SID Symposium Digest of Technical Papers. 2004; 35(1): 31-33. [23] Lee SH, et al. A novel transflective liquid crystal display with a periodically patterned electrode. Japanese Journal of Applied Physics. 2003; 42(2): 12A. [24] Kim M, et al. Wall shaped electrodes for reducing the operation voltage of polymer stabilized blue phase liquid crystal displays. Journal of Physics D: Applied Physics. 2009; 42: 235502. [25] Chen Y, et al. Low voltage and high transmittance blue-phase LCDs with double-side in-plane switching electrodes. Liquid Crystals. 2011; 38(5): 555-559. [26] Hsieh JL, Choi WK. Step-shaped electrodes for low-voltage and high-optical-efficiency blue phase transflective liquid crystal displays. Liquid Crystals. 2019; 46(7): 1043-1051. [27] Rao L, Cheng HC, Wu ST. Low voltage blue-phase LCDs with double-penetrating fringe fields. Journal of display technology. 2010; 6(8): 287-289. [28] Chu F, Dou H, Song YL, et al. A transflective blue-phase liquid crystal display with alternate electrodes. Liquid Crystal. 2017; 44(8): 1316-1320. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/74023 | - |
dc.description.abstract | 液晶螢幕到現在一直以來都是顯示器的主流,在生活中隨處可見,其中藍相液晶在未來中具有發展潛力,此種液晶不需配向層且擁有亞毫秒的響應時間等優勢,但同時需要較高的驅動電壓,且穿透率還有許多改善的空間,本論文將以藍相液晶作為研究主題,並改變元件的結構以改善缺點。
本論文的電極結構設計採用了西元2010年由吳思聰研究團隊所提出的蝕刻基板結構以及西元2011年由河北工業大學提出的雙邊電極排列技術,綜合上述設計改善高操作電壓與低穿透率的問題,並延伸出穿透式顯示器與半穿半反式顯示器的兩種結構。在經由參數維度的研究討論後,得出本論文結構的特性及原理。其中半穿半反式顯示器較為特別,元件分為穿透與反射兩區域,作為一良好的顯示器必須將兩區域之間的光電表現調整至同步變化,將光電曲線的重合作為本論文研究的一大主題,在了解參數變化的影響後,為了使其元件能有更彈性的運用,我們將半穿半反式顯示器依照穿透區與反射區的面積比,做出不同的結果與討論。本論文設計經由最佳化後,得穿透式顯示器之操作電壓11.5伏特,且最大穿透率有93.5%的高表現;另外半穿半反式顯示器也做出操作電壓彼此匹配的參數組合,其操作電壓為10.4伏特,且最大穿透率與最大反射率可以維持在90%以上。此研究結果對於藍相液晶顯示器來說都是有良好的表現改善,但其中也包含了製程中的困難及幾種光電表現上的缺陷,將在本論文中分析並討論。 | zh_TW |
dc.description.abstract | Liquid crystal display has been a mainstream display technology and it could be seen everywhere in our life. Blue phase liquid crystal (BPLC) has potential for next-generation display technology. BPLC doesn’t need alignment layer and it also has sub-millisecond fast response time. These properties make BPLC very attractive. However, BPLC has some problems such as high operation voltage and low transmittance. In this thesis, we will improve these problems by proposing new structure designs for BPLC displays.
In this thesis, we referenced two concepts. One is the etching substrate, which was proposed by Prof S.T Wu’s group in 2010. The other one is the double-side electrodes, which was proposed by Hebei University of Technology in 2011. With these two methods, we could improve problems of high operation voltage and low transmittance. After detailed analyses and discussions, we had some conclusions for these devices. In these designs, the transflective device is particular attractive. In order to use transflective LCDs more widely, we made different discussions according to the ratio between the transmissive area and the reflective area. After optimizing the data, we got a transmissive device which had high optical efficiency of about 93.5% at 13V. On the other hand, the new transflective design had optical efficiency of > 90% at 10.4V. The results all show good improvement for PSBP LCDs. There are some issues that need to be addressed, e.g. the fabrication difficulty, defect of performance, etc. All of them will be discussed in this thesis. | en |
dc.description.provenance | Made available in DSpace on 2021-06-17T08:17:07Z (GMT). No. of bitstreams: 1 ntu-108-R06941086-1.pdf: 8748907 bytes, checksum: 3f1f1d914c44b2731ab783fc47e7dc0c (MD5) Previous issue date: 2019 | en |
dc.description.tableofcontents | 目錄
致謝 i 摘要 ii ABSTRACT iii 目錄 iv 圖目錄 vii 表目錄 xi 第一章 液晶的起源與特性 1 1.1 液晶介紹 1 1.1.1 液晶的起源 1 1.1.2 液晶的物理特性 1 1.2 藍相液晶介紹 4 1.2.1 藍相液晶的起源 4 1.2.2 藍相液晶的種類 4 1.2.3 藍相液晶的特性 5 1.2.4 藍相液晶的溫寬 6 1.2.5 克爾效應(Kerr Effect) 7 1.2.6 藍相液晶的應用 9 第二章 液晶顯示器與研究動機 10 2.1 顯示器的種類介紹 10 2.1.1 穿透式顯示器(Transmissive LCD) 10 2.1.2 反射式顯示器(Reflective LCD) 11 2.1.3 半穿半反式顯示器(Transflective LCD) 12 2.2 文獻回顧 15 2.2.1 改變電極結構設計 15 2.2.2 改變電極排列方法 16 2.2.3 改變基板結構與電極設計 17 2.3 研究動機 18 第三章 模擬實驗架構 19 3.1 模擬軟體TechWiz LCD 3D介紹 19 3.1.1 設定材料庫參數 20 3.1.2 元件架構設計 20 3.1.3 液晶與光學分析 23 3.2 模擬軟體之驗證 25 3.3 模擬電極結構設計 28 3.3.1 材料參數庫設定值 28 3.3.2 LC Analysis 30 3.3.3 Optical Analysis 31 3.3.4 電極結構設計 33 第四章 模擬實驗結果討論 36 4.1 結構設計概念介紹 36 4.1.1 蝕刻基板結構 37 4.1.2 雙邊基板電極結構 40 4.1.3 雙邊電極及蝕刻基板結構 43 4.1.4 反射區電極 45 4.2 模擬數據探討(穿透式) 49 4.2.1 液晶層厚度(d)對光電曲線之影響(T-LCD) 50 4.2.2 下電極寬度(w)對光電曲線之影響(T-LCD) 52 4.2.3 下電極間距(l)對光電曲線之影響(T-LCD) 54 4.2.4 蝕刻深度(h&s)對光電曲線之影響(T-LCD) 57 4.3 模擬數據探討(穿反式) 60 4.3.1 液晶層厚度(d)對光電曲線之影響(TR-LCD) 61 4.3.2 下電極寬度(w)對光電曲線之影響(TR-LCD) 64 4.3.3 下電極間距(l)對光電曲線之影響(TR-LCD) 67 4.3.4 上電極寬度(g)對光電曲線之影響(TR-LCD) 71 4.3.5 蝕刻深度(h)對光電曲線之影響(TR-LCD) 74 4.4 元件模擬結果討論(穿透式) 78 4.5 元件模擬結果討論(穿反式) 83 4.5.1 穿透為主(T>R) 83 4.5.2 穿反相等(T=R) 99 4.5.3 反射為主(T<R) 105 4.5.4 結果比較 110 4.6 穿透式與穿反式之比較 113 4.7 可視角對比度模擬結果 115 4.7.1 穿透式顯示器視角對比圖 115 4.7.2 穿反式顯示器視角對比圖 116 第五章 結論與未來發展 118 參考文獻 120 | |
dc.language.iso | zh-TW | |
dc.title | 雙邊蝕刻電極半穿半反藍相液晶顯示器在不同穿反比例下之研究 | zh_TW |
dc.title | Transflective Blue Phase Liquid Crystal Display Using Double-side Etching Electrodes with Different Transflective Ratio | en |
dc.type | Thesis | |
dc.date.schoolyear | 107-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 黃定洧,林晃巖 | |
dc.subject.keyword | 藍相液晶,半穿半反式,TechWiz,雙邊電極技術,蝕刻基板技術, | zh_TW |
dc.subject.keyword | Blue phase liquid crystal,Transflective,TechWiz,Double-side electrodes,Etching substrate, | en |
dc.relation.page | 122 | |
dc.identifier.doi | 10.6342/NTU201903430 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2019-08-14 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 光電工程學研究所 | zh_TW |
顯示於系所單位: | 光電工程學研究所 |
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