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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 蔡永傑(Wing-Kit Choi) | |
| dc.contributor.author | Yu-Chuan Chang | en |
| dc.contributor.author | 張育銓 | zh_TW |
| dc.date.accessioned | 2021-06-08T02:15:21Z | - |
| dc.date.copyright | 2016-02-19 | |
| dc.date.issued | 2015 | |
| dc.date.submitted | 2015-11-24 | |
| dc.identifier.citation | [1]Belyakov, V. A., and Vladimir E. Dmitrienko. 'The blue phase of liquid crystals.'Soviet Physics Uspekhi 28.7 (1985): 535. [2]H. –S. Kitzerow and C. Bahr, Chirality in Liquid Crystals (Springer, New York, 2001). [3]Kitzerow, Heinz-Siegfried. 'Blue phases come of age: a review.' SPIE OPTO: Integrated Optoelectronic Devices. International Society for Optics and Photonics, 2009. [4]Rao, Linghui, et al. 'Low voltage blue-phase liquid crystal displays.' Applied Physics Letters 95.23 (2009): 231101. [5]Kitzerow, Heinz, and Christian Bahr. Chirality in liquid crystals. Springer Science Business Media, 2001. [6]Chen, Hui-Yu, et al. 'Relation between physical parameters and thermal stability of liquid-crystal blue phase.' Applied Physics Letters 97.18 (2010): 181919. [7]Castles, F., et al. 'Thermodynamically stable blue phases.' Physical review letters 104.15 (2010): 157801. [8]Coles, Harry J., and Mikhail N. Pivnenko. 'Liquid crystal ‘blue phases’ with a wide temperature range.' Nature 436.7053 (2005): 997-1000. [9]Yoshizawa, Atsushi, Masatada Sato, and Juri Rokunohe. 'A blue phase observed for a novel chiral compound possessing molecular biaxiality.' Journal of Materials Chemistry 15.32 (2005): 3285-3290. [10]Yoshizawa, Atsushi, et al. 'A binaphthyl derivative with a wide temperature range of a blue phase.' Journal of Materials Chemistry 19.32 (2009): 5759-5764. [11]He, Wanli, et al. 'Wide blue phase range in a hydrogen‐bonded self‐assembled complex of chiral fluoro‐substituted benzoic acid and pyridine derivative.' Advanced Materials 21.20 (2009): 2050-2053. [12]Yoshida, Hiroyuki, et al. 'Nanoparticle-stabilized cholesteric blue phases.' Applied Physics Express 2.12 (2009): 121501. [13]Mada, Hitoshi, et al. 'Time dependence of impedance characteristic of nematic liquid crystal cell.' Japanese journal of applied physics 35.9A (1996): L1114. [14]Kim, Kyeong-Jin, et al. 'Influence of contamination on nematic liquid crystal pretilt angle.' SID CONF REC INT DISPLAY RES CONF. pp. 77-80. 1997. 1997. [15]Mizusaki, Masanobu, et al. 'Generation mechanism of residual direct current voltage in a liquid crystal display and its evaluation parameters related to liquid crystal and alignment layer materials.' Journal of applied physics 102.1 (2007): 014904. [16]Kikuchi, Hirotsugu, et al. 'Polymer-stabilized liquid crystal blue phases.' Nature materials 1.1 (2002): 64-68. [17]Yan, Jin, et al. 'Extended Kerr effect of polymer-stabilized blue-phase liquid crystals.' Applied Physics Letters 96.7 (2010): 071105. [18]Samsung Develops World's First 'Blue Phase' technology to achieve 240 Hz driving speed for high-speed video (http://www.physorg.com/news129997960.html) [19]Ge, Zhibing, et al. 'Modeling of blue phase liquid crystal displays.' Journal of display technology 5.7 (2009): 250-256. [20]Kim, Miyoung, et al. 'Wall-shaped electrodes for reducing the operation voltage of polymer-stabilized blue phase liquid crystal displays.' Journal of Physics D: Applied Physics 42.23 (2009): 235502. [21]Oh‐e, Masahito, and Katsumi Kondo. 'Electro‐optical characteristics and switching behavior of the in‐plane switching mode.' Applied physics letters 67.26 (1995): 3895-3897. [22]Lee, S. H., S. L. Lee, and H. Y. Kim. 'Electro-optic characteristics and switching principle of a nematic liquid crystal cell controlled by fringe-field switching.' Applied physics letters 73.20 (1998): 2881-2883. [23]Rao, Linghui, et al. 'Low voltage blue-phase liquid crystal displays.' Applied Physics Letters 95.23 (2009): 231101. [24]Yoon, Sukin, et al. 'Optimisation of electrode structure to improve the electro-optic characteristics of liquid crystal display based on the Kerr effect.' Liquid Crystals 37.2 (2010): 201-208. [25]Rao, Linghui, Hui-Chuan Cheng, and Shin-Tson Wu. 'Low voltage blue-phase LCDs with double-penetrating fringe fields.' Display Technology, Journal of 6.8 (2010): 287-289. [26]Jiao, Meizi, Yan Li, and Shin-Tson Wu. 'Low voltage and high transmittance blue-phase liquid crystal displays with corrugated electrodes.' Applied Physics Letters 96.1 (2010): 011102. [27]Cheng, Hui-Chuan, et al. 'Vertical field switching for blue-phase liquid crystal devices.' Applied Physics Letters 98.26 (2011): 261102. [28]Liu, Yifan, et al. 'High transmittance blue-phase LCD with a floating electrode.'SID Int Symp Digest Tech Papers. Vol. 44. No. 1. 2013. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/19721 | - |
| dc.description.abstract | By placing a floating electrode on the upper substrate, it has been found to be very helpful in modifying the electric field profile in a Polymer Stabilized Blue Phase Liquid Crystal (PS-BPLC) cell such that the overall transmission can be increased. A major advantage of floating electrode is that it doesn’t require application of a driving voltage and hence no extra TFT is required and it is very convenient and low cost.
We will investigate and report the results on the effects of floating electrode on PS-BPLC with different electrode shapes, dimensions and material constants such as Kerr constants. We also further investigate the effects on electric fields with different shapes and dimensions of floating electrode. These can all affect the electric field distribution profile and hence PS-BPLC transmission and operation voltage. Our preliminary results show that the floating electrode can indeed improve the overall transmission of the PS-BPLC displays quite remarkably by decreasing the “dead zone” areas. A brand new design of floating electrode is proposed, we call it “distributed floating electrode” design. This new design requires less transparent electrode area, lower operation voltage while maintaining similar transmittance as in tradition floating electrode design. Moreover, this new design also has the potential of reducing the image sticking problem that may be caused by the traditional floating design and may allow higher transmission due to less transparent electrode area. In addition, we use Matlab to scan electric field in whole region along z-direction, visualize the electric field distribution in 3D diagram of every structure. The designs and computer simulations were carried out using a commercially available LCD modeling software 3D Techwiz (Sanayi System) from Korea. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-08T02:15:21Z (GMT). No. of bitstreams: 1 ntu-104-R02941116-1.pdf: 4906290 bytes, checksum: 7c84cfb2cb8999ba619d2f1fecab99e5 (MD5) Previous issue date: 2015 | en |
| dc.description.tableofcontents | 目錄 口試委員會審定書 # 誌謝 i 摘要 ii ABSTRACT iii 目錄 iv 圖目錄 vii 表目錄 xii Chapter 1 藍相液晶簡介 1 1.1 藍相液晶的發現 1 1.2 藍相液晶的種類 2 1.3 藍相液晶的特性與技術 2 1.3.1 藍相液晶的光學特性 2 1.3.2 藍相液晶的晶格缺陷與溫寬拓展技術 3 1.3.3 高分子穩定型藍相液晶克爾效應 5 1.4 第一台藍相液晶顯示器 7 Chapter 2 文獻回顧與研究動機 8 2.1 文獻回顧 8 2.1.1 改變電極形狀的結構設計 8 2.1.2 改變基板形狀的結構設計 12 2.1.3 同時改變基板與電極造型的結構設計 12 2.1.4 改變電場方向的結構設計 13 2.1.5 特殊結構設計 14 2.2 研究動機 15 Chapter 3 模擬實驗架構 16 3.1 模擬軟體Techwiz介紹 16 3.1.1 材料資料庫 17 3.1.2 結構設計 17 3.1.3 液晶、光學分析模擬 17 3.1.4 TechWiz Viewer 18 3.2 模擬軟體設定 18 3.2.1 液晶層的切層分析數量 18 3.2.2 Mesh的精細度 20 3.2.3 邊界條件 22 3.2.4 克爾常數(Kerr constant)的影響 24 3.3 模擬驗證 25 Chapter 4 浮接電極運用於藍相液晶之模擬實驗結果 28 4.1 浮接電極運用於R.Ellipse電極結構之特性 28 4.1.1 穿透率與電壓關係 28 4.1.2 穿透率與距離關係 30 4.2 浮接電極於R.Ellipse與R.Sine電極結構之特性差異 31 4.2.1 穿透率與電壓關係相互比較 31 4.2.2 穿透率與距離關係相互比較 35 4.3 造型式浮接電極運用於R.Sine電極結構 43 4.3.1 Triangle造型式浮接電極之穿透率特性研究 43 4.3.2 R.Sine造型式浮接電極之穿透率特性研究 45 4.4 浮接電極重疊度對於R.Sine電極結構之特性研究 48 4.5 分散式浮接電極應用於R.Sine電極結構之特性研究 52 4.5.1 分散式浮接電極之結構參數設定 55 4.5.2 分散式浮接電極之穿透率與距離關係 59 4.6 Matlab圖形化3D立體掃描分析z切面電場 61 Chapter 5 結論 67 參考文獻 68 | |
| dc.language.iso | zh-TW | |
| dc.title | 浮接電極應用於高分子藍相液晶顯示器之效應研究 | zh_TW |
| dc.title | Effects of floating electrode on the Polymer-Stabilized Blue-Phase Liquid Crystal Displays | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 104-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 蘇國棟,黃鼎偉 | |
| dc.subject.keyword | 藍相液晶,浮接電極,TechWiz,分散式浮接電極,Matlab, | zh_TW |
| dc.subject.keyword | Blue-Phase liquid crystal,floating electrode,Techwiz,distributed floating electrode,Matlab, | en |
| dc.relation.page | 70 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2015-11-24 | |
| 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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