Translated Titles

Simulation of Wide-band Single Cell Gap Transflective LCD Using Hybrid Modes and Fringe-Field-Switching





Key Words

半穿透半反射 ; 混合液晶模態 ; 邊緣場效驅動 ; 液晶光學模擬 ; Transflective ; Hybrid LC Modes ; Fringe-Field-Switching ; Simulation of LC Optics



Volume or Term/Year and Month of Publication


Academic Degree Category




Content Language


Chinese Abstract

本論文以邊緣電場(Fringe-field)為主要的驅動方式,產生FFS液晶模態,使得液晶顯示器具備基本的廣視角及良好的光電效率。首先根據wide-band原理,設計出具有wide-band效果的混合配向反射式結構,討論參數對光電曲線的影響。接著依照相同的觀念,設計兩種穿透式結構:水平配向與混合配向的穿透式結構。 利用模擬軟體2DIMMOS,根據反射式結構的特性,微調反射或穿透區的相關參數,改善E-O curve不一致的問題。接著再利用模擬軟體TechWiz LCD,藉由理論計算結果,外加正C plate,補償相位遲滯片與液晶層。最後我們可設計出同時具有TR match與廣視角的半穿透半反射液晶顯示器。

English Abstract

In this thesis, we use fringe-field as the major drived method to producing FFS LC mode. This kind of LCD has wide viewing angle and good electro-optic efficiency. At first, according to wide-band theory, we can design the hybrid aligned reflective LCD which have wide-band effect. Then, we discuss the influences of parameters on E-O curve. Secondly, we design two different transmissive structures in the light of the same concept : parallel aligned and hybrid aligned transmissive structures. By using the 2DIMMOS software, we fine tune the related parameters of reflective or transmissive region in order to improve the inconsistence of E-O curve. According to the result of calculation with theory, we add positive C plates to compensate the retarder and LC layer by the software TechWiz LCD. After a series of simulations and corrections, we can finally devise a transflective LCD which is TR matched and with wide-viewing angle property.

Topic Category 電機資訊學院 > 光電工程學研究所
工程學 > 電機工程
  1. [1] Masumi Kubo, Takashi Ochi, Yozo Narutaki, Tokihiko
  2. Shinomiya, Yutaka Ishii“Developent of Advancede TFT-  LCD with good legibility under any ambient light
  3. [5] Y. Y. Fan, H. C. Chiang, T. Y. Ho, Y. M. Chen, Y. C.  
  4. 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. [7] F. Zhou, D. K Yang, “Polymer Stabilized Electrically Controlled Birefringence Transreflective Liquid Crystal Displays”, SID’04 Digest, pp.38-41 (2004)
  6. [9] 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)
  7. [10] S. G. Kang, S. H. Kim, S. C. Song, W. S. Park, C. Yi, C. W. Kim, K. H. Chung, “Development of a Novel
  8. Transflective Color LTPS-LCD with Cap-Divided VA-Mode”, SID’03 Digest, pp.31-33 (2004)
  9. [11] 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)
  10. [12] Hyang Yul Kim, Zhibing Ge, and Shin-Tson Wu, “Wide-view transflective liquid crystal display for mobile applications”, APPLIED PHYSICS LETTERS 91, 231108 _2007_
  11. [13] Seo Hern Lee, Kyoung-Ho Park, Jin Seog Gwag, Tae-Hoon Yoon and Jae Chang Kim, “A Multimode-Type Transflective Liquid Crystal Display Using the Hybrid-Aligned Nematic and Parallel-Rubbed Vertically Aligned Modes”,Jpn. J. Appl. Phys. Vol. 42 (2003) pp. 5127–5132, Part 1, No. 8, August 2003
  12. [14] Berreman, D. W., “Numerical Modellling of twisted nematic devices”,Philosophical Transactions of the Royal Society of London A, pp.202-216 (1983)
  13. [15] Frank, F. C., “On the theory of liquid crystals”, Discussions of the Faraday Society, pp. 19-28 (1958)
  14. [16] de Gennes, P. G. and Prost, J, “The Physics of Liquid Crystals”, Oxford: Clarendon Press (1993)
  15. [18] Berreman, D. W., “Optics in Stratified and Anisotropic Media: 4x3-Matrix Formulation ”, Journal of the Optical Society of America, pp. 503-510 (1972)
  16. [20] Xinyu Zhu and Shin-Tson Wu, “Ultrawide-View Liquid Crystal Displays”,SID’05 DIGEST, pp.1164-1167, 2005
  17. [21] Ruibo Lu, Xinyu Zhu, Shin-Tson Wu, Qi Hong, and Thmos X. Wu, “ Super Wide View In-Plane Switching LCD with Positive and Negative Uniaxial A-Films Compenstion”, IEEE/OSA JOURNAL OF DISPLAY TECHNOLOGY,VOL. 1 pp. 3-14, 2005
  18. [24] Tae-Hoon Yoon, Gi-Dong Lee, and Jae Chang Kim,
  19. “Nontwist quarter-wave liquid-crystal cell for ahigh-
  20. [25] C.-L. Kuo, C.-L. Chen, D.-L. Ting, C.-K. Wei, Y.-H.
  21. 7, 109 (1999)
  22. description of polarization mode dispersion and polarization-dependent loss”, 2006 Optical Society of
  23. [27] Seung Jai Kim, Hyang Yul Kim, Seung Hee Lee, Yong Kyun Lee, Kyu Chang Park and Jin Jang, “Cell Gap-Dependent Transmittance Characteristic in aFringe Field-Driven Homogeneously Aligned Liquid Crystal Cell with Positive
  24. Dielectric Anisotropy”, Jpn. J. Appl. Phys. Vol. 44, No. 9A,2005,pp.6581–6586
  25. “Electrooptic Characteristics of a Fringe-Field Driven Hybrid Aligned Nematic Liquid Crystal Cell using a Liquid Crystal with Positive Dielectric Anisotropy”, Jpn. J.Appl. Phys., Vol. 43, No. 2,2004, pp. 637–641
  26. [29] Jeong-Dong Noh, Hyang Yul Kim, Jae-Hyung KIM3, Sang-
  27. Hee NAM and Seung Hee Lee, “Rubbing Angle Effect on
  28. Response Time of the Fringe-Field Switching Nematic Liquid Crystal Display”, Jpn. J. Appl. Phys. Vol. 42 (2003) pp. 1290–1291, Part 1, No. 3, March
  29. [30] Seung Ho Hong, In Cheol Park, Hyang Yul Kim and Seung
  30. Hee Lee, “Electro-Optic Characteristic of Fringe-Field Switching Mode Depending on Rubbing Direction”,Jpn. J. Appl. Phys. Vol. 39 (2000) pp. L527-L530, Part2, No. 6A, 1 June
  31. and Jae Chang Kim, “Electrooptic Characteristics of New Configuration for Reflective In-Plane-Switching Liquid Crystal Device”, Jpn. J. Appl. Phys. Vol. 42 (2003) pp. 7361–7365, Part 1, No. 12, December
  32. Hee Lee, “Viewing Angle Characteristics of Transflective Display in a Homogeneously Aligned Liquid Crystal Cell Driven by Fringe-Field”, Jpn. J.Appl. Phys., Vol. 43, No. 9A/B, 2004, pp. L 1211–L1213
  33. [33] Seung Ho Hong, Yeon Hak Jeong, Hyang Yul Kim and Seung
  34. Hee Lee,“Novel Nematic Liquid Crystal Device Associated with Hybrid Alignment Controlled by Fringe Field”, Jpn. J. Appl. Phys., Vol. 40 (2001) pp. L272-L274, Part2, NO 3B, 15 March 2001
  35. [34] 劉文傑,台灣大學光電工程學研究所.”反射式IPS模態及半穿
  36. intensity”,Journal of the SID, 8/4,299 (2000).
  37. [2] Koichi Fujimori, Yozo Narutaki, Naofumi Kimura, “High-Transmissive Advanced TFT LCD Technology”, Sharp Technical Journal (2003)
  38. [3] Koichi Fujimori, Yozo Narutaki, Naofumi Kimura,Yashisa Itoh, Shlgeaki Mizushima, Yutaka Ishii, Masaya Hijikigama,“New Color Filter Structures For Transflective TFT-LCD”, SID ’02 Digest, pp. 1383-1385 (2002)
  39. [4] K. H. Liu, C. Y. Cheng, Y. R. Shen, C. M. Lai, C. R.
  40. Sheu, Y. Y. Fan, C. C. Chen,I. J. Lin, “A Novel   
  41. Double Gamma Driving Transflective TFT LCD”, IDMC'03 , p.215 (2003)
  42. [6] F. Zhou, D. K. Yang, “Wavelength Divided Trans- 
  43. reflective Liquid CrystalDisplay”, SID’03 Digest,pp.83-85 (2003)
  44. [8] Yuzo Hisatake, Toshiya Ohtake, Atsuko Oono, Yoshinori Higuchi, “A Novel Transflective TFT-LCD using Cholesteric Half Reflector”, IDW’01 Digest, p.129 (2001)
  45. [17] Yeh, P., “Extended Jones matrix method”, Journal of the optical Society of America, pp. 507-513 (1982)
  46. [19] “2DIMMOS 1.5 Display Modeling System”, autronic-MELCHERS GmbH (2004)
  47. [22] E. Collett, Polarized Light: Fundamentals and Applications,chapter3(Marcel Decker, New York, 1993)
  48. [23] E. Collett, Polarized Light: Fundamentals and Applications,chapter4(Marcel Decker, New York, 1993)
  49. contrast reflective display”, 2000 Optical Society of
  50. America., Vol. 25, No. 20, pp.p.1547-p.1549 (2000)
  51. Lu, B.-J. Liao, B.-D. Liu, C. W. Hao, and S.-T. Wu, SID J.
  52. [26] Michael Reimer and David Yevick, “Mueller matrix
  53. America Vol. 23, No. 6, pp.1502-1508 (2006)
  54. [28] Wan Cheol Kim, Yeon Hak Jeong and Seung Hee Lee,
  55. [31] Seo Hern Lee, Hee Wook Do, Gi-Dong Lee, Tae-Hoon Yoon
  56. [32] Tae Bong Jung, Je Hoon Song, Dae-Shik Seo and Seung
  57. 透半反射式PVA模態的液晶顯示器設計與最佳化”