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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 蔡永傑 | zh_TW |
dc.contributor.advisor | Wing-Kit Choi | en |
dc.contributor.author | 簡日彬 | zh_TW |
dc.contributor.author | Jih-Pin Chien | en |
dc.date.accessioned | 2023-10-03T17:04:31Z | - |
dc.date.available | 2023-11-09 | - |
dc.date.copyright | 2023-10-03 | - |
dc.date.issued | 2023 | - |
dc.date.submitted | 2023-08-11 | - |
dc.identifier.citation | F Reinitzer. Beiträge zur kenntniss des cholesterins. Monatshefte für Chemie/Chemical Monthly, 9:421–441, 1888.
Otto Lehmann. Über fliessende krystalle. Zeitschrift für physikalische Chemie, 4(1):462–472, 1889. Pierre-Gilles De Gennes and Jacques Prost. The physics of liquid crystals. Number 83. Oxford university press, 1993. Shin-Tson Wu. Birefringence dispersions of liquid crystals. Physical Review A, 33(2):1270, 1986. David C Wright and N David Mermin. Crystalline liquids: the blue phases. Reviews of Modern physics, 61(2):385, 1989. Hirotsugu Kikuchi, Masayuki Yokota, Yoshiaki Hisakado, Huai Yang, and Tisato Kajiyama. Polymer-stabilized liquid crystal blue phases. Nature materials, 1(1):64–68, 2002. H Kikuchi, S Izena, H Higuchi, Y Okumura, and K Higashiguchi. A giant polymer lattice in a polymer-stabilized blue phase liquid crystal. Soft Matter, 11(23):4572–4575, 2015. Martin Schadt and Wolfgang Helfrich. Voltage-dependent optical activity of a twisted nematic liquid crystal. Applied Physics Letters, 18(4):127–128, 1971. Masahito Oh-e and Katsumi Kondo. Electro-optical characteristics and switching behavior of the in-plane switching mode. Applied physics letters, 67(26):3895–3897,1995. Masahito Oh-e and Katsumi Kondo. Response mechanism of nematic liquid crystals using the in-plane switching mode. Applied physics letters, 69(5):623–625, 1996. Ji Ma, Young-Cheol Yang, Zhigang Zheng, Jianru Shi, and Wenyi Cao. A multi-domain vertical alignment liquid crystal display to improve the v–t property. Displays, 30(4-5):185–189, 2009. Young Jin Lim, Eun Jeong, Mi Hyung Chin, Seunghoon Ji, Gi-Dong Lee, and Seung Hee Lee. Viewing angle switching of patterned vertical alignment liquid crystal display. Journal of Physics D: Applied Physics, 41(8):085110, 2008. Kyeong-Hyeon Kim and Jang-Kun Song. Technical evolution of liquid crystal displays. NPG Asia materials, 1(1):29–36, 2009. Hyeokjin Lee, Hong-Jo Park, Oh-Jeong Kwon, Sung Jae Yun, Jae Hong Park, Seungho Hong, and Sung-Tae Shin. 11.1: Invited paper: The world’s first blue phase liquid crystal display. In SID Symposium Digest of Technical Papers, volume 42, pages 121–124. Wiley Online Library, 2011. Yuge Huang, Haiwei Chen, Guanjun Tan, Hitoshi Tobata, Shin-ichi Yamamoto, Eiji Okabe, Yi-Fen Lan, Cheng-Yeh Tsai, and Shin-Tson Wu. Optimized blue-phase liquid crystal for field-sequential-color displays. Optical Materials Express, 7(2):641-650, 2017. Linghui Rao, Jin Yan, Shin-Tson Wu, Yu-Cheng Lai, Yung-Hsiang Chiu, Heng-Yin Chen, Chao-Chiun Liang, Chun-Ming Wu, Pao-Ju Hsieh, Shih-Hsien Liu, et al. Critical field for a hysteresis-free bplc device. Journal of Display Technology, 7(12):627–629, 2011. Linghui Rao, Zhibing Ge, Shin-Tson Wu, and Seung Hee Lee. Low voltage blue-phase liquid crystal displays. Applied Physics Letters, 95(23), 2009. Linghui Rao, Hui-Chuan Cheng, and Shin-Tson Wu. Low voltage blue-phase lcds with double-penetrating fringe fields. Journal of Display Technology, 6(8):287–289, 2010. Yan Li and Shin-Tson Wu. Transmissive and transflective blue-phase lcds with enhanced protrusion electrodes. Journal of Display Technology, 7(7):359–361, 2011. 蘇展. 六角形立體電極結構應用於藍相液晶顯示器之研究. 國立台灣大學光電工程研究所, 2021. 廖宜慶. 多重六角形電極結構應用於藍相液晶顯示器之研究. 國立台灣大學光電工程研究所, 2022. Haiwei Chen, Yi-Fen Lan, Cheng-Yeh Tsai, and Shin-Tson Wu. Low-voltage blue-phase liquid crystal display with diamond-shape electrodes. Liquid Crystals, 44(7):1124–1130, 2017. Xinyu Zhu, Zhibing Ge, and S-T Wu. Analytical solutions for uniaxial-film-compensated wide-view liquid crystal displays. Journal of Display Technology,2(1):2–20, 2006. | - |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/90662 | - |
dc.description.abstract | 藍相液晶顯示器作為備受期待的新一代液晶螢幕,具有超快的響應速度、高對比度與無須配向層等等優點,但卻也有著操作電壓過高和穿透率低等重大缺陷。本論文將藉由加入新的電極結構,對操作電壓以及穿透率進行改善。本論文以學長提出的中空六角型電極結構(Hexagonal Electrode)作為出發點,對結構進行分析並提出改善方法。首先將拉低結構穿透率的原因分為:亮區電場不均勻以及中心與外圍的無效區(Dead zone),並解釋他們形成的原因。接著,針對中心部分無效區做出改善改善,本論文提出中心六角錐電極(Hexagonal Pyramid Center)的新型結構,成功點亮了原本位於中心的無效區,並大幅降低操作電壓。再來,針對外圍無效區,參考了增強型凸起電極結構(Enhanced Protrusion Electrode),去掉了它原本凸起物上的反射鏡改用上層電極來補足原本電場不夠的區域,成功地改善電極結構與外圍無效區的問題。最後,我們分別針對結構參數做出比較跟優化,結合中心與外圍結構,提出一個操作電壓為11.3V穿透率為93.88%的雙層六角錐中心六角形電極結構。 | zh_TW |
dc.description.abstract | Blue Phase Liquid Crystal Displays (BPLCDs) have emerged as promising next-generation LCDs, offering advantages such as ultra-fast response time, high contrast ratio, and wide viewing angle. However, BPLCDs suffer from major drawbacks of high operation voltage and low transmittance. This thesis aims to address these issues by designing an electrode structure to improve both the operation voltage and transmittance. In this thesis, we start with the hollow hexagonal electrode design proposed by our senior colleague and conduct an analysis to propose improvements. Firstly, we identify the reasons for low transmittance in the hollow hexagonal electrode, including the imbalance of electric fields in bright region、 central dead zone and peripheral dead zones. Each factor is explained in detail. Subsequently, we address the improvement of the central dead zone by proposing the Hexagonal Pyramid Center structure, which effectively illuminates the previously ineffective central area and significantly reduces the operating voltage. Next, to tackle the issues with the peripheral ineffective regions, we refer to the Enhanced Protrusion Electrode design. By removing the reflectors on the original protrusions and using upper-layer electrodes to supplement the insufficient electric field region from the lower-layer, we successfully resolve the problems related to the electrode structure and peripheral dead zones. Finally, we perform comparisons and optimizations on the structural parameters, combining the improvements in the central and peripheral regions, resulting in an double-layer hexagonal pyramid center hexagonal electrode structure with an operating voltage of 11.3V and a transmittance of 93.88%. | en |
dc.description.provenance | Submitted by admin ntu (admin@lib.ntu.edu.tw) on 2023-10-03T17:04:31Z No. of bitstreams: 0 | en |
dc.description.provenance | Made available in DSpace on 2023-10-03T17:04:31Z (GMT). No. of bitstreams: 0 | en |
dc.description.tableofcontents | 口試委員審定書 i
致謝 ii 摘要 iii Abstract iv 目錄 vi 圖目錄 ix 表目錄 xi 第一章 液晶與藍相液晶簡介 1 1.1 液晶介紹 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1.1 液晶簡介 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1.2 液晶的性質 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 藍相液晶 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2.1 藍相液晶簡介 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2.2 藍相液晶的特性 . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2.3 藍相液晶與克爾效應 . . . . . . . . . . . . . . . . . . . . . . . . 7 第二章 顯示器原理 9 2.1 液晶顯示器 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.1.1 液晶顯示器簡介 . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.2 液晶顯示器的結構與原理 . . . . . . . . . . . . . . . . . . . . . . . . 10 2.2.1 液晶顯示器結構 . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.2.2 穿透式顯示器 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.2.3 反射式顯示器 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.2.4 半穿半反式液晶顯示 . . . . . . . . . . . . . . . . . . . . . . . . 13 2.3 藍相液晶顯示器 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.3.1 藍相液晶顯示器介紹 . . . . . . . . . . . . . . . . . . . . . . . . 14 2.3.2 藍相液晶顯示器優點與缺陷 . . . . . . . . . . . . . . . . . . . . 15 2.4 文獻參考 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.4.1 橫向電場效應顯示技術 . . . . . . . . . . . . . . . . . . . . . . . 16 2.4.2 突出電極 (protrusion electrode ) . . . . . . . . . . . . . . . . . . . 17 2.4.3 增強型突出電極 (Enhanced protrusion electrode) . . . . . . . . . . 18 2.5 研究動機 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 第三章 模擬軟體介紹 21 3.1 模擬軟體 TechWiz LCD 3D 簡介 . . . . . . . . . . . . . . . . . . . . 21 3.2 模擬參數設定 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.2.1 材料庫 (Material Database) . . . . . . . . . . . . . . . . . . . . . . 22 3.2.2 模擬網格切割 (Mesh Generation) . . . . . . . . . . . . . . . . . . 24 3.2.3 液晶分析 (LC Analysis) . . . . . . . . . . . . . . . . . . . . . . . 24 3.2.4 光學分析 (Optical Analysis) . . . . . . . . . . . . . . . . . . . . . 25 第四章 模擬結果與討論 27 4.1 中空六角形電極 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 4.1.1 中空六角形電極分析 . . . . . . . . . . . . . . . . . . . . . . . . 27 4.2 中心結構 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 4.2.1 中心結構發想 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 4.2.2 模擬結果分析 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 4.2.3 參數優化 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 4.3 外圍結構 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 4.3.1 外圍結構發想 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 4.3.2 模擬結果分析 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 4.3.3 參數優化 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 4.3.4 結合多重六角形設計 . . . . . . . . . . . . . . . . . . . . . . . . 45 第五章 結論與未來目標 48 參考文獻 50 | - |
dc.language.iso | zh_TW | - |
dc.title | 以新型電極結構優化六角形電極藍相液晶顯示器之研究 | zh_TW |
dc.title | New electrode design for optimizing blue phase liquid crystal displays with hexagonal electrode design | en |
dc.type | Thesis | - |
dc.date.schoolyear | 111-2 | - |
dc.description.degree | 碩士 | - |
dc.contributor.oralexamcommittee | 林晃巖;黃定洧;黃念祖 | zh_TW |
dc.contributor.oralexamcommittee | Hoang-Yan Lin;Ding-wei Huang;Nien-Tsu Huang | en |
dc.subject.keyword | 藍相液晶,平面驅動型液晶顯示器,三維電極結構,六角形電極結構,增強型凸起電極結構,六角錐中心六角形電極結構, | zh_TW |
dc.subject.keyword | Blue Phase Liquid Crystal,In-plane switching,Three- dimensional electrode,Hexagonal Electrode,Enhanced Protrusion Electrode,Hexagonal Pyramid Center Hexagonal electrode, | en |
dc.relation.page | 52 | - |
dc.identifier.doi | 10.6342/NTU202303496 | - |
dc.rights.note | 未授權 | - |
dc.date.accepted | 2023-08-12 | - |
dc.contributor.author-college | 電機資訊學院 | - |
dc.contributor.author-dept | 光電工程學研究所 | - |
顯示於系所單位: | 光電工程學研究所 |
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