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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 蔡永傑(Wing-Kit Choi) | |
| dc.contributor.author | Yi-An Chen | en |
| dc.contributor.author | 陳奕安 | zh_TW |
| dc.date.accessioned | 2021-07-11T14:49:47Z | - |
| dc.date.available | 2025-08-20 | |
| dc.date.copyright | 2020-08-28 | |
| dc.date.issued | 2020 | |
| dc.date.submitted | 2020-08-19 | |
| dc.identifier.citation | [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; US4613209 A [5] Friedel G. Les états mésomorphes de la matière. Annales de Physique. 1922; 9: 273-474. [6] D. J. Broer, J. Lub G. N. Mol.(1995)Wide-band reflective polarizers from cholesteric polymer networks with a pitch gradient.Nature 378.6556:467 [7] Wu ST. Birefringence dispersions of liquid crystals. Physical Review A. 1986; 33: 1270 [8] Belyakov VA, Dmitrienko VEE. The blue phase of liquid crystals. Physics-Uspekhi, 1985; 28(7): 535-562. [9] Crooker PP. Plenary Lecture. The blue phases. A review of experiments. Liquid Crystals. 1989; 5(3): 751-775. [10] Asiqur Rahman, Suhana Mohd Said and S Balamurugan. 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] 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. [13] Patel JS, Meyer RB. Flexoelectric electro-optics of a cholesteric liquid crystal. Physical review letters, 1987; 58(15): 1538. [14] Chen, H. Y., Liu, H. H., Lai, J. L., Chiu, C. H., Chou, J. Y. (2010). Relation between physical parameters and thermal stability of liquid-crystal blue phase. Applied Physics Letters,97(18), 181919. [15] Bahr, C., Kitzerow, H. S. (2001). Chirality in liquid crystals. Heidelberg: Springer.。 [16] 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. [17] Samsung Develops World's First 'Blue Phase' Technology to Achieve 240 Hz Driving Speed for High-Speed Video (access date 23 April 2009). [18] Chen, K. M., Gauza, S., Xianyu, H., Wu, S. T. (2010). Submillisecond gray-level response time of a polymer-stabilized blue-phase liquid crystal. Journal of display technology, 6(2), 49-51 [19] Chen, K. M., Gauza, S., Xianyu, H., Wu, S. T. (2010). Hysteresis effects in blue-phase liquid crystals. Journal of Display Technologyin 6(8), 318-322 [20] Fujimori K, Narutaki Y, Kimura N. High Transmissive Advanced TFT-LCD Technology. Sharp Technical Journal. 2003; 34-37 [21] 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. [22] 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. [23] Zhou F, Yang DK. Wavelength Divided Trans‐reflective Liquid Crystal Display. In SID Symposium Digest of Technical Papers. 2003; 34(1): 82-85. [24] 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. [25] Y. Hisatake, T. Ohtake, A. Oono, and Y. Higuchi. A novel transflective TFT-LCD using cholesteric half reflector. IDW’01 Digest. 2001; 129. [26] 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 Symposium Digest of Technical Papers. 2004; 35(1). [27] Lee SH, et al. A novel transflective liquid crystal display with a periodically patterned electrode. Japanese Journal of Applied Physics. 2003; 42(2): 12A. [28] Rao L, Cheng H.C., Wu S.T. (2010). Low Voltage Blue-Phase LCDs With Double-Penetrating Fringe Fields. Journal of Display Technology, 6(8), 287–289. [29] 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. [30] Song, Dong Han, Ki‐Han Kim, and Tae‐Hoon Yoon. 'High‐transmittance in‐plane switching liquid crystal display device driven by three‐level voltages.' Journal of the Society for Information Display 21.1 (2013): 29-33. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/78293 | - |
| dc.description.abstract | 目前顯示器以液晶螢幕為主流，其中藍相液晶成為越來越熱門的研究題目，其有相當多的優點，如亞毫秒的響應時間，大幅增加了顯示器的解析度與發光效率，此外不須配向層也是極大的優勢，然而目前的藍相液晶顯示器還是有些不足之處，首要克服的問題在於其高操作電壓與低穿透率，若能改善這樣缺點，藍相液晶仍有深具潛力的發展空間，因此本論文將以藍相液晶作為研究主題，藉由改變結構設計來改善缺點。 本論文以半穿半反式顯示器為研究主軸，結構設計採用三階電極為驅動，加上蝕刻基板結構以及雙邊電極排列的想法，設計出高穿透率、高反射率和低操作電壓的半穿半反式型顯示器。在光電曲線重合為本論文另一項研究主題，對於半穿半反式顯示器，光電曲線的高重合度是一項重要議題，根據本論文的結構設計，在了解參數變化的影響後，提出兩種方式，分別為調整液晶層厚度及平移電極。 最後，本論文將半穿半反式顯示器依穿透區與反射區面積大小分別研究，再經由參數最佳化後，皆可得到光電曲線高重合度且高穿透率、高反射率的成果。 | zh_TW |
| dc.description.abstract | Liquid crystal displays are widely used in our daily life nowadays. Among many types of liquid crystal, blue phase liquid crystal (BPLC) has been under active research and development in recent years. There are many advantages that make BPLC very attractive compared to others LCs, such as lack of alignment layer and sub-millisecond response time. However, BPLC still has problems such as high operation voltage and low transmittance. To overcome these drawbacks, we design new electrode structures for BPLCs in the thesis. Considering the suitability of being used under different environments, we focus on developing transflective BPLC display. In this thesis, we employ three major concepts: i) etching substrate, ii) double-side electrodes and iii) three-level electrode. By utilizing these concepts, we successfully design new structures for transflective BPLC display with low operation voltage and high brightness performance. In this thesis, we also propose two different methods to match the transmission and reflection curves: i) adjusting the cell gap and ii) shifting the electrodes. After optimizing the parameters, we get well-matched performance (gamma curve) of transflective BPLC devices with optical efficiency of higher than 85% and operation voltage of lower than 12V. More details will be discussed in the thesis, including fabrication difficulty, gamma curve matching and deadzone reduction. | en |
| dc.description.provenance | Made available in DSpace on 2021-07-11T14:49:47Z (GMT). No. of bitstreams: 1 U0001-0908202000343100.pdf: 5788262 bytes, checksum: ad53a63e1423d0dda70f2b72e8d9278d (MD5) Previous issue date: 2020 | en |
| dc.description.tableofcontents | 口試委員會審定書.....................................................i 摘要................................................................ii ABSTRACT...........................................................iii 目錄................................................................vi 圖目錄.............................................................vii 表目錄...............................................................x 第一章 液晶的起源與特性..............................................1 1.1 液晶的起源...................................................1 1.2 液晶的物理特性...............................................5 一、雙折射性質...............................................5 二、秩序參數.................................................6 1.3 藍相液晶介紹.................................................7 1.4 藍相液晶的物理性質...........................................8 一、克爾效應(kerr effect) ...................................8 二、藍相液晶的溫寬...........................................9 1.5 藍相液晶優缺點比較..........................................10 第二章 液晶顯示器的種類.............................................12 2.1 穿透式顯示器（TransmissiveLCD）.............................13 2.2 反射式顯示器（Reflective LCD）..............................14 2.3 半穿半反式顯示器（Transflective LCD）.......................15 一、 雙間隙穿反式顯示器.....................................15 二、 單間隙穿反式顯示器.....................................16 第三章 研究方法.....................................................18 3.1 模擬軟體TechWiz LCD 3D介紹.................................18 一、 設定材料庫參數.........................................19 二、 元件架構設計...........................................20 三、 網格切割...............................................22 四、 液晶分析...............................................23 五、 光學分析...............................................24 3.2 模擬數據設定................................................25 3.3 文獻回顧....................................................29 一、etched substrate........................................29 二、Double-side IPS.........................................30 三、三階電極應用於平面轉換顯示器............................31 3.4 研究動機....................................................32 3.5 結構設計概念介紹............................................32 一、三階電極結構(Three Level electrodes) ...................33 二、改良雙邊電極結構........................................34 三、蝕刻基板結構............................................35 四、模擬結構數據說明........................................38 第四章 模擬結果-半穿半反式(穿透區面積大) ...........................40 4.1實驗模擬結果.................................................41 一 、上電極寬度（w）對光電曲線之影響.........................41 二、上電極間距（l）對光電曲線之影響..........................43 三 下電極寬度（g）對光電曲線之影響...........................46 4.2 光電曲線重合-半穿半反式(穿透區面積較大) .....................49 一、 透過調整cell gap........................................49 4.3將上基板加上蝕刻(h) ..........................................58 一、 上基板蝕刻高度(h)=1μm情況..............................59 二、 上基板蝕刻高度(h)=2μm情況..............................63 4.4結果比較.....................................................67 第五章 模擬結果-半穿半反式(反射區面積大) ............................70 5.1實驗模擬結果.................................................71 一 、上電極寬度（w）對光電曲線之影響.........................71 二、上電極間距（l）對光電曲線之影響..........................72 三、下電極寬度（g）對光電曲線之影響..........................74 5.2 光電曲線重合-半穿半反式(反射區面積較大) .....................76 一、 平移電極................................................76 二、調整cell gap.............................................80 5.3、上基板加上蝕刻結構(h) ......................................87 一、下電極pixel電極寬度(g )=1μm............................88 二、下電極pixel電極寬度(g )=2μm............................90 5.4結果比較.....................................................92 第六章 結論與未來發展...............................................94 6.1 結果比較....................................................94 6.2 未來發展....................................................96 參考資料............................................................98 | |
| dc.language.iso | zh-TW | |
| dc.subject | TechWiz | zh_TW |
| dc.subject | 藍相液晶 | zh_TW |
| dc.subject | 半穿半反式 | zh_TW |
| dc.subject | 三階電極 | zh_TW |
| dc.subject | etching substrate | en |
| dc.subject | Blue phase liquid crystal | en |
| dc.subject | three level electrodes | en |
| dc.subject | TechWiz | en |
| dc.subject | transflective | en |
| dc.subject | double-side electrodes | en |
| dc.title | 三階電極之半穿半反藍相液晶顯示器 | zh_TW |
| dc.title | Three-Level Transflective Blue Phase Liquid Crystal Display with Low Operation Voltage and High Light Efficiency | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 108-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 林晃巖(Hoang-Yan Lin),黃定洧(Ding-Wei Huang) | |
| dc.subject.keyword | 藍相液晶,半穿半反式,三階電極,TechWiz, | zh_TW |
| dc.subject.keyword | TechWiz,Blue phase liquid crystal,transflective,three level electrodes,double-side electrodes,etching substrate, | en |
| dc.relation.page | 100 | |
| dc.identifier.doi | 10.6342/NTU202002695 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2020-08-19 | |
| 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 |
| dc.date.embargo-lift | 2025-08-20 | - |
| 顯示於系所單位： | 光電工程學研究所 | |
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