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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 蔡永傑(Wing-Kit Choi) | |
dc.contributor.author | Shih-Hsien Wei | en |
dc.contributor.author | 魏仕賢 | zh_TW |
dc.date.accessioned | 2021-06-15T13:50:38Z | - |
dc.date.available | 2025-12-31 | |
dc.date.copyright | 2015-12-01 | |
dc.date.issued | 2015 | |
dc.date.submitted | 2015-10-16 | |
dc.identifier.citation | [1] Masumi Kubo, Takashi Ochi, Yozo Narutaki, Tokihiko Shinomiya, Yutaka Ishii “Development of advanced TFT-LCD with good legibility under any ambient light intensity”, Journal of the SID, 8/4,299 (2000).
[2] Koichi Fujimori, Yozo Narutaki, Naofumi Kimura, “High-Transmissive Advanced TFT LCD Technology”, Sharp Technical Journal (2003). [3] K. H. Liu, C. Y. Cheng, Y. R. Shen, C. M. Lai, C. R. Sheu, Y. Y. Fan, C. C. Chen,I. J. Lin, “A Novel Double Gamma Driving Transflective TFT LCD”, IDMC'03 , p.215 (2003). [4] Y. Y. Fan, H. C. Chiang, T. Y. Ho, Y. M. Chen, Y. C. Hung, I. J. Lin, C. R. Sheu, C. W. Wu, D. J. Chen, J.Y. Wang, B. C. Chang, Y. J. Wong, K. H. Liu,“A Single-Cell-Gap Transflective LCD”, SID ’04Digest, pp. 647-649 (2004). [5] F. Zhou, D. K. Yang, “Wavelength Divided Trans-reflective Liquid Crystal Display”, SID’03 Digest, pp.83-85 (2003). [6] F. Zhou, D. K Yang, “Polymer Stabilized Electrically Controlled Birefringence Transreflective Liquid Crystal Displays”, SID’04 Digest, pp.38-41 (2004). [7] Yuzo Hisatake, Toshiya Ohtake, Atsuko Oono, Yoshinori Higuchi, “A Novel Transflective TFT-LCD using Cholesteric Half Reflector”, IDW’01 Digest, p.129 (2001). [8] Y. P. Huang, X. Zhu, H. Ren, Q. Hong, Thomas X. Wu, S. T. Wu, M. Z Su, M. X Chan, S. H. Lin, H. P. Shieh, “Full-color transflective cholesteric LCD with image-enhanced reflector”, Journal of the SID 12/4(1), pp.1-6 (2004). [9] S. G. Kang, S. H. Kim, S. C. Song, W. S. Park, C. Yi, C. W. Kim, K. H. Chung, “Development of a Novel Transflective Color LTPS-LCD with Cap-Divided VA-Mode”, SID’03 Digest, pp.31-33 (2004). [10] S. H. LEE, H. W. DO, G. D. LEE, T. H. YOON, J. C. KIM,“ A Novel Transflective Liquid Crystal Display with a Periodically Patterned Electrode”,Jpn. J. Appl. Phys, vol.42, pp.L1455-L1458 (2003). [11] Jin Yan and Shin-Tson Wu, “Polymer-stabilized blue phase liquid crystals: a tutorial [Invited],” Optical Materials Express 1527, Vol. 1, No. 8, 2011. [12] H. Kikuchi, M. Yokota, Y. Hiskado, H. Yang, and T. Kajiyama, “Polymer-stabilized liquid crystal blue phases,” Nat. Mater., vol. 1, pp. 64–68, 2002. [13] Linghui Rao, Zhibing Ge, Shin-Tson Wu, Seung Hee Lee, “Low voltage blue-phase liquid crystal displays,” Appl. Phys. Lett., vol. 95, 231101, 2009. [14] Y. Li, and S. T. Wu, Fellow, IEEE “Transmissive and Transflective Blue-Phase LCDs With Enhanced Protrusion Electrodes,” Journal of Display Technology, Vol. 7, No. 7, pp. 359 – 361, 2011 [15] En-Wei Zhong, Shui-Bin Ni, Jian Tan, Yue Song, Shi-Yu Liu, Yi-Jun Wang, Ji-Liang Zhu, and Jian-Gang Lu, “A Transflective Display Using Blue Phase Liquid Crystal,” Journal of Display Technology, Vol. 10, No. 5, pp. 357-361, may 2014 [16] M. Jiao, Y. Li, and S. T. Wu, “Low voltage and high transmittance blue-phase liquid crystal displays with corrugated electrodes,” Appl. Phys. Lett., Vol. 96, 011102, 2010. [17] Miyoung Kim, Min Su Kim, Byeong Gyun Kang, Mi-Kyung Kim,Sukin Yoon, Seung Hee Lee, Zhibing Ge, Linghui Rao, Sebastian Gauza and Shin-TsonWu, “Wall-shaped electrodes for reducing the operation voltage of polymer-stabilized blue phase liquid crystal displays,” Appl. Phys. 42, 2009 [18] Linghui Rao, Hui-Chuan Cheng, and Shin-Tson Wu, Fellow, IEEE, “Low Voltage Blue-Phase LCDs With Double-Penetrating Fringe Fields,” Journal of Display Technology, VOL. 6, NO. 8, pp. 287-289, 2010 [19] Jian-Peng Cui, Feng Zhou, Chengqun Song, Quan-Min Zhong and Qiong-Hua Wang, “Low-voltage and high-transmittance blue-phase liquid-crystal device with slanted electrodes,” Journal of the SID 20/6, pp. 347-350, 2012 [20] Jian-Peng Cui, Feng Zhou, Qiong-Hua Wang, Di Wu, and Da-Hai Li, “Transflective Blue-Phase Liquid Crystal Display Using an Etched In-Plane Switching Structure,” Journal of Display Technology, VOL. 7, NO. 7, pp. 398-401, JULY 2011 [21] Jian-Peng Cui, Qiong-Hua Wang, Feng Zhou, “Transflective blue-phase liquid-crystal display with corrugated electrode structure,” Journal of the SID 19/11, pp. 709-712, 2011 [22] Feng Zhou, Jian-Peng Cui, Qiong-Hua Wang, Da-Hai Li, and Di Wu, “A Single-Cell-Gap Transflective Display Using a Blue-Phase Liquid Crystal,” Journal of Display Technology, VOL. 7, NO. 4, pp. 170-173 APRIL 2011 [23] Chengqun Song, Qiong-Hua Wang, Jian-Peng Cui, Feng Zhou, Lin Qi, and Da-Hai Li, “Low Voltage and High Transmittance Transflective Display Using Polymer-Stabilized Blue-Phase Liquid Crystal,” Journal of Display Technology, VOL. 7, NO. 5, pp. 250-254, MAY 2011 [24] Di Wu, Qiong-Hua Wang, Feng Zhou, Jian-Peng Cui, and Cheng-Qun Song, “Low Voltage and High Optical Efficiency Single-Cell-Gap Transflective Display Using a Blue-Phase Liquid Crystal,” Journal of Display Technology, VOL. 7, NO. 8, pp. 459-432, AUGUST 2011 [25] Yan Li, Meizi Jiao, and Shin-Tson Wu, “Transflective display using a polymer-stabilized blue-phase liquid crystal,” Optics Express 16486, Vol. 18, No. 16, pp. 16486-16491, 2010 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/51803 | - |
dc.description.abstract | 液晶顯示器近年來已經逐漸成為人們生活中不可或缺的產品,從電視、智慧型手機、智慧型手錶、平板電腦以及大螢幕廣告看板等等,人們投入大量的金錢及人力進行許多研究,近來發展出一種新型液晶材料藍相液晶,它有著亞毫秒(sub-millionsecond)等級的響應時間以及暗態均相性(isotropic dark state)及不需配向層等優點,應用於顯示器中,將可以解決影像殘留以及節省製造成本等優點,但缺點就是現今的液晶顯示器電極結構加入藍相液晶之後,其驅動電壓過高且穿透率降低,導致藍相液晶尚未普及化的原因,實驗研究人員致力於發展新型電極結構以降低驅動電壓及增加穿透率,並因應近來穿戴式裝置的興起而設計半穿透半反射式液晶顯示器以因應顯示器在室外及室內都有良好的顯示效率。
在本論文中,我們利用交錯式的配置設計改善了穿透率以及操作電壓,在第一個設計中,利用交錯式電極的設計,改善波浪型電極在尖端的缺陷,減少錯位線的產生,提高穿透率;在第二個設計中,利用FIS模式增加了負偏壓使驅動電壓能夠降低的特性將Enhanced protrusion電極做更進一步的探討以及在半穿透半反射式液晶顯示器下,因為common電極的設置來維持反射率和穿透率能夠有相近的值。在本論文也設計以單間隙半穿透半反射式液晶顯示器(Single Cell Gap Transflective LCD)為主要設計,因為雙間隙半穿透半反射式液晶顯示器(Double Cell Gap Transflective LCD)在製程上複雜許多且會耗費相當多的成本,但單間隙的光電曲線較難以匹配,故本實驗加入藍相液晶並利用各種不同結構參數來調整反射區的光電曲線來和穿透區的光電曲線匹配,例如:角度 ,寬度L、電極間距以及液晶盒厚度d。如此一來將可使穿透區與反射區的光電曲線匹配。 | zh_TW |
dc.description.abstract | In recent years, liquid crystal display (LCD) has become an indispensable part of our life, such as TV, smart phone, smart watch, tablet, billboard and so on. People put a lot of money and human resource into research. Recently, a material has been developed and is called “Polymer Stabilized Blue Phase Liquid Crystal (PS-BPLC)”. Blue phase liquid crystal (BPLC) has several advantages, such as sub-millionsecond response time, no alignment required and isotropic dark state (wide viewing angle) and so on. When we put BPLC into display, it can solve image sticking problem, save manufacturing cost, etc. The major difficulties of BPLC LCDs are that their operating voltage is rather too high and transmittance is relatively low, that’s why BPLC LCD hasn’t been mass produced by companies yet. Researchers are devoted to developing new electrode structures that can lower the operating voltage and also increase the transmittance.
In this thesis, we propose two new designs that are based on interdigitated electrode to further improve the transmittance and lower the operation voltage of BPLC. In the first design, we use interdigitated corrugated electrode structure to improve the transmittance in the sharp corner positions with less disclination lines. In the second design, we use interdigitated FIS (Fringe-In-Plane Switching) mode to improve the transmission and lower operating voltage of BPLC. In this thesis, we also design PSBP transflective LCDs that can be used in wearable devices. We focus mainly on single-cell-gap transflective LCDs since double-cell-gap transflective LCDs may sometimes be more complicated and hence require higher cost in the manufacturing process. However, the electro-optic curves (transmission vs. voltage and reflection vs. voltage) are more difficult to match in single cell gap transflective LCDs. In this thesis, we will try to different parameters to adjust the reflection curves to match the transmission curves. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T13:50:38Z (GMT). No. of bitstreams: 1 ntu-104-R02941111-1.pdf: 5755382 bytes, checksum: 3b53fb47a6ac6fbbea14d77b004244ae (MD5) Previous issue date: 2015 | en |
dc.description.tableofcontents | 口試委員會審定書 ........................................................................................................... #
誌謝 ....................................................................................................................................i 中文摘要 ......................................................................................................................... iii ABSTRACT ...................................................................................................................... v 目錄 ................................................................................................................................ vii 圖索引 ..............................................................................................................................xi 表索引 ............................................................................................................................xvi Chapter 1 液晶顯示器 ............................................................................................... 1 1.1 顯示器類型介紹 ............................................................................................ 1 1.1.1 穿透式液晶顯示器(Transmissive LCD) .............................................. 1 1.1.2 反射式液晶顯示器(Reflective LCD) ................................................... 2 1.1.3 半穿透半反射式液晶顯示器(Transflective LCD) .............................. 3 1.2 液晶顯示器結構 ............................................................................................ 6 1.2.1 扭轉式向列型(TN)顯示器 ................................................................... 6 1.2.2 垂直配向型(VA)顯示器 ....................................................................... 8 1.2.3 平面轉換(In-Plane Switch, IPS)型顯示器 ........................................... 9 1.2.4 邊界電場切換(Fringe Field Switching, FFS)型顯示器 ..................... 10 1.3 模擬軟體TechWiz LCD 3D 簡介 ............................................................... 11 1.4 何謂液晶 ...................................................................................................... 13 1.5 液晶分類 ...................................................................................................... 14 1.5.1 膽固醇型(Cholesterics, N*)液晶 ....................................................... 14 1.5.2 向列型(Nematics)液晶 ....................................................................... 15 1.5.3 層列型(Smectics)液晶 ........................................................................ 16 1.5.4 圓盤型(Discotic)液晶 ......................................................................... 17 1.6 液晶物理 ...................................................................................................... 18 1.6.1 液晶分子排列的秩序參數(order parameter) ..................................... 18 1.6.2 液晶的光學異向性 (anisotropy) ....................................................... 19 1.6.3 液晶的連續彈性體理論(elastic continuum theory) ........................... 21 1.6.4 介電常數異方性(dielectric anisotropy,Δε ) .................................... 22 Chapter 2 藍相液晶顯示器 ..................................................................................... 25 2.1 藍相液晶(Blue phase liquid crystals, BPLC) .............................................. 25 2.1.1 藍相液晶的歷史 ................................................................................. 26 2.1.2 藍相液晶三態 ..................................................................................... 26 2.1.3 旋光性 ................................................................................................. 27 2.1.4 光學均向性與布拉格繞射 ................................................................. 28 2.1.5 藍相液晶溫寬技術 ............................................................................. 28 2.1.6 藍相液晶的Kerr effect ...................................................................... 29 2.2 藍相液晶電極結構文獻探討 ...................................................................... 30 2.2.1 Enhanced protrusion 電極結構 ..................................................... 30 2.2.2 Fringe and in-plane switching(FIS)電極結構 .................................... 36 2.2.3 波浪型(corrugated)電極結構 ............................................................. 38 2.3 研究動機 ...................................................................................................... 43 Chapter 3 TechWiz 3D 模擬軟體電極結構設計 .................................................... 46 3.1 TechWiz 3D 軟體模擬 ................................................................................. 46 3.1.1 LC Analysis ......................................................................................... 46 3.1.2 Optical Analysis .................................................................................. 47 3.1.3 Material Data base ............................................................................... 48 3.2 交錯式波浪型(interdigitated corrugated)電極結構 .................................... 50 3.2.1 穿透式結構設計 ................................................................................. 50 3.2.2 半穿透半反射式結構設計 ................................................................. 52 3.3 FIS 模式之Enhanced protrusion 電極結構 ................................................ 53 3.3.1 穿透式結構設計 ................................................................................. 53 3.3.2 半穿透半反射式結構設計 ................................................................. 55 Chapter 4 結構模擬結果與討論 ............................................................................. 58 4.1 交錯式波浪型電極結構 .............................................................................. 58 4.1.1 液晶扭轉方向及穿透率對應位置圖 ................................................. 58 4.1.2 交錯式波浪型與波浪型電極光電曲線 ............................................. 61 4.1.3 寬度L 對光電曲線影響與探討 ........................................................ 62 4.1.4 角度θ 對光電曲線影響與探討 .......................................................... 63 4.1.5 液晶盒(cell gap)厚度d 對光電曲線影響與探討 .............................. 64 4.1.6 電極間距(electrode gap) 對光電曲線影響與探討 ........................... 65 4.1.7 交錯式波浪型電極結構錯位位移(shift) ........................................... 67 4.1.8 半穿透半反射式交錯波浪型電極結構 ............................................. 68 4.2 FIS 模式之Enhanced protrusion 電極結構 ................................................ 80 4.2.1 FIS 模式之Enhanced protrusion 電極光電曲線比較 ....................... 81 4.2.2 FIS 模式之Enhanced protrusion 電極間距之最佳參數探討 ........... 82 4.2.3 半穿透半反射式FIS 模式之Enhanced protrusion 電極 .................. 83 Chapter 5 結論與未來目標 ..................................................................................... 92 Reference ......................................................................................................................... 94 | |
dc.language.iso | zh-TW | |
dc.title | 利用交錯式電極設計之高穿透率藍相液晶顯示器之模擬分析 | zh_TW |
dc.title | High Transmittance Blue-Phase Liquid Crystal Display with Interdigitated Electrode | 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,交錯式波浪型電極結構,半穿透半反射式顯示器,錯位線, | zh_TW |
dc.subject.keyword | Blue Phase Liquid Crystal (BPLC),interdigitated corrugated electrode structure,FIS mode with enhanced protrusion electrode structure,transflective LCD,disclination lines, | en |
dc.relation.page | 97 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2015-10-16 | |
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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