研究生: |
王誌麟 Chih-Lin Wang |
---|---|
論文名稱: |
光學補償彎曲模式對旋光物參混之扭轉向列型液晶以及混成扭轉向列型液晶光電特性探討 The optical-electro characteristics of chiral-Doped Twist Nematic Liquid Crystals and Hybrid Twist Nematic Liquid Crystals with Optically Compensated Bend mode |
指導教授: |
李俊毅
Jiunn-Yih Lee |
口試委員: |
邱顯堂
none 邱士軒 none 戴華山 none |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 材料科學與工程系 Department of Materials Science and Engineering |
論文出版年: | 2006 |
畢業學年度: | 94 |
語文別: | 中文 |
論文頁數: | 112 |
中文關鍵詞: | 扭轉排列 、混成配向排列 、液晶 、光學補償彎曲模式 |
外文關鍵詞: | Optically Compensated Bend mode, Twist Nematic Liquid Crystals, Hybrid Twist Nematic Liquid Crystals, liquid crystal |
相關次數: | 點閱:433 下載:0 |
分享至: |
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
本論文主要研究光學補償彎曲模式(OCB)應用於扭轉向列 (TN) 以及混合扭轉向列 (HTN)液晶元件,並進行其光電研究。本實驗分為兩大部份,分別為利用添加不同旋光物濃度 ( 0 %wt、0.25 %wt、0.50 %wt、0.75 %wt、1.00 %wt ) 搭配不同厚度 (6μm 、 7μm 、 8μm)試片,研製TN以及HTN顯示元件,並研究OCB模式下的TN以及HTN之白光對不同印加電壓的穿透度、閥電壓、對比度、應答時間、視角等光電特性。
比較不同旋光物濃度( 0 %wt、0.25 %wt、0.50 %wt、0.75 %wt、1.00 %wt )、相同厚度試片,發現添加不同旋光物濃度的TN以及HTN顯示元件的閥電壓雖然比未添加旋光物濃度的TN以及HTN顯示元件略高一點,但是在白光穿透度、對比度、應答時間、視角等光電特性卻有顯著改善效能。
比較不同厚度 (6μm 、 7μm 、 8μm)的試片、相同旋光物濃度,發現隨著試片厚度增大,不同厚度的試片在特定的濃度範圍中,白光穿透度、對比度、應答時間、視角等光電特性會有不同改變。
The optical-electro characteristics of Chiral-Doped Twist Nematic ( TN ) Liquid Crystals and Hybrid Twist Nematic ( HTN ) Liquid Crystals with Optically Compensated Bend mode were investigated (OCB).
This experiment is divided into two major parts in order to utilize adding different concentration of chiral-doped (0.00% wt, 0.25 % wt , 0.50 %wt , 0.75% wt , 1.00 %wt) match different thickness (6μm、7μm 、8μm) , developing TN and HTN and show the component , and the white light of TN and HTN studied under OCB way. To printing the photoelectric characteristic of piercing through degree , voltage of valve , contrast ratio , response time , visual angle etc. with the voltage differently.
Being compared with all chiral-dopen concentration (0.00% wt, 0.25 % wt , 0.50 %wt , 0.75% wt , 1.00 %wt) which the same thickness cell try more differently is add different to all thing TN and HTN of thickness show valve voltage of component though than is all thing TN and HTN of thickness show component a little higher to add to find, but have apparent efficiency of improving to pierce through photoelectric characteristics , such as degree , contrast ratio , response time , visual angle ,etc. in the white light.
Being compared with all the more different thickness (6μm、7μm、8μm) to find that increases with a slice of thickness of trying, different thickness tries one in the specific thickness range, the white light pierces through photoelectric characteristics , such as degree , contrast ratio , response time , visual angle ,etc. to change differently.
1.H. Kelker, Mol. Crt. Liq., Vol.165, p1-43(1988).
2.顧鴻壽, “光電液晶平面顯示器技術基礎與應用”, 新文京開發出板
股份有限公司, pp.143(2003)
3.翁國斌,國立台灣科技大學碩士論文,2004..
4.顧鴻壽, “光電液晶平面顯示器技術基礎與應用”, 新文京開發出板股份有限公司, pp.143(2003).
5.張嘉倫, “垂直配向模式ECB彩色液晶元件之光電特性探討”, 台灣科技大學, pp.16(2000).
6.Werner KLAUS、Yasushi SUZUKI、Masahiro TSUCHIYA and Takeshi KAMIYA, “Optical Characterization of Homogeneous Nematic Liquid Crystal Cells Based on the Liquid Crystal Continuum Model”, Jpn. J. Appl. Phys. Vol.34, pp.6116(1995).
7.P.Yeh、C.Gu, “Symmetry of viewing characteristics of liquid crystal displays with compensators”, Displays, Vol.21, pp.31(2000).
8.M.Fukumoto、M.Yoshiga、Y.Hamawaki、T.Unate, “Optical response of structured vertically aligned and in-plane switching LCDs”, SID’89, pp.22(2000).
9.S.H.Hong、Y.H.Jeong、S.W.Kim、H.Y.Kim、J.Y.Lee、H.S.Park、S.H.Lee, “Improved hybrid aligned nematic liquid crystal display driven by fringe field”, IDW’01, pp.209(2001).
10.黃錫瓊、黃輝光編譯,液晶器件手冊,航空工業出版社(1992).
11.日本液晶應用技術研究會原著、陳連春譯,最新液晶應用技術,建興出版社(1998).
12.Tetsuya MIYASHITA、Yoshimi YAMAGUCHI and Tatsuo UCHIDA, “Wide viewing angle display mode using bend alignment liquide crystal cell”, Jpn. J. Appl. Phys.,Vol.34, pp.L177(1995).
13.Chen-Lung Kuo、Tetsuya MIYASHITA、Makoto SUZUKI and Tatsuo UCHIDA, “Optimum dark-state voltage for wide viewing angle optically compensated bend mode liquide crystal displays” , Jpn. J. Appl. Phys.,Vol.34, pp.1362(1995).
14.Tetsuya MIYASHITA, Tatsuo UCHIDA, “Optical Compensated Mode ( OCB Mode ) with Wide Viewing Angle and Fast Response”, Jpn. J. Appl. Phys.,Vol.E-79C, pp.1076 (1996).
15.楊宜寬、郭蘭生、鄭殷立, “液晶化學及物理入門”, 偉明圖書有限公司, pp.101(2001).
16.蕭仁義, “染料參混膽石醇液晶之光學特性研究”, 台灣科技大學, pp.5(2003).
17.M.Fukumoto、M.Yoshiga、Y.Hamawaki、T.Unate, “Optical response of structured vertically aligned and in-plane switching LCDs”, SID’89, pp.22(2000).
18.高鄂州,國立台灣工業技術學院碩士論文,1996.
19.Jinn-Chou YOO, “Analyses of in-plane switching mode LCDs, Mol. Cryst. Liq. Cryst, Vol.312, pp.1-11(1999).
20.S.Matsumoto、S.Seyama、Y.Ukai、T.Unate、M.Moriya、T.Inada、K.Saigusa, “Characteristics of in-plane switching LCDs and a wide viewing angle 14.5-in. IPS TFT-LCD”, Euro Display ’96, pp.445(1996).
21.H.Yamakita、K.Nishiyama、A.Shiota、S.Ogawa、K.Kumagawa、A.Takimoto, “Electro-optical characteristics of in-plane switching LCDs using Transparent electrodes structure”, Display Device Development Center.
22. He, Zhan (Akita Univ., Akita, Jpn); Tanaka, Shinji; Nose, Toshiaki; Sato, Susumu, ‘’ Viewing-angle properties of electrically induced hybrid twisted nematic liquid crystal display devices’’ , Proceedings of SPIE - The International Society for Optical Engineering, v 2892, 1996, p 2-9.
23. Kim, Young Jin (Orion Electric Co, Ltd); Park, Soon-Mo; Lee, Sin-Doo, Journal of the Society for Information Display, , v 7, n 2, 1999, p 103-107.
24. Kubono, A.; Kyokane, Y.; Kasajima, Y.; Akiyama, R.; Tanaka, K., ‘’Electro-optical response of hybrid twisted nematic liquid crystal displays’’, Journal of Applied Physics, v 89, n 7, Apr 1, 2001, p 3554.
25. Ishinabe, Takahiro,Miyashita, Tetsuya; Uchida, Tatsuo; Suzuki, Makoto,’’A bright reflective full-color liquid crystal display using optically compensated bend cell with high contrast ratio and wide viewing angle range’’, Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, v 43, n 9 A, September, 2004, p 6158-6161.
26. Lee, S.H., Hong, S.H.; Noh, J.D.; Kim, H.Y.; Seo, D.-S.’’ Chiral-doped optically compensated bend nematic liquid crystal cell with continuous deformation from twist to twisted bend state’’, Japanese Journal of Applied Physics, Part 2: Letters, v 40, n 4 B, Apr 15, 2001, p L389-L392.
27. Kuo, Chen-Lung, Miyashita, Tetsuya; Suzuki, Makoto; Uchida, Tatsuo” Optimum dark-state voltage for wide-viewing-angle optically-compensated-bend-mode liquid-crystal-displays”, Japanese Journal of Applied Physics, Part 2: Letters, v 34, n 10B, Oct 15, 1995, p L1362-L1364.
28. Seung Hee Lee*, Seung Ho Hong, Jeong Dong NOH, Hyang Yul Kim and Dae-Shik Seo1 “ Chiral-Doped Optically Compensated Bend Nematic Liquid Crystal Cell with Comtinuos Deformation From Twist to to Twist Bend State”, Jpn.J.Appl.Phys. Part2 Vol.40(2001), No.4B pp.L389-L392.
29 Pochi YEH、Claire GU, “Optics of Liquid Crystal Display”, John Wiley & Sons,Ins., pp.103(1999).
30Minoru SHIBAZAKI、Takahiro ISHINABE、Tetsuya MIYASHITA、Tatsuo UCHIDA and Tomihisa SUNATA, “New concept of the wide viewing angle liquid crystal display without grayscale inversion”, Jpn. J. Appl. Phys., Vol.40,p1373(2001).
31.Jin-Jei Wu、Shu-Hsia CHEN and Jen-Yu FAN, “Laser and electric field induced local refraction index change in a nematic liquid crystal film”, Jpn. J. Appl. Phys., Vol.39, pp.4895(2000).
32. Kamberaj, Hiqmet (Faculty of Science and Engineering, Manchester Metropolitan University, John Dalton Building); Osipov, Mikail A.; Low, Robert J.; Neal, Maureen P., “Helical twisting power and chirality indices”, Molecular Physics, v 102, n 5, Mar 10, 2004, p 431-446
33. Aoki, Yoshio (Saitama Univ); Nomoto, Satoru; Hirose, Takuji; Nohira, Hiroyuki,” Helical twisting power of new chiral dopants derived from 2-phenylpropanoic acid for nematic liquid crystals”, Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals, v 346, 2000, p 35-40
34. E.Jakeman and E.P.Raynes, Phys.Lett., Vol.39A, p.69, 1972
35.馬瑞穗,國立台灣工業技術學院碩士論文,2002.
36. Xiao and Xuezhi , “HYBRID-ALIGNED NEMATIC (HAN) LIQUID CRYSTAL CELLS.”Guangxue Xuebao/Acta Optica Sinica, v 7, n 6, Jun, 1987, p 552-557.