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1999 Fiscal Year Final Research Report Summary

DEVELOPMENT OF SUPER LOW CONSUMPTION REFLECTIVE FULL COLOR LIQUID CRYSTAL DISPLAY FOR MOVING IMAGE

Research Project

Project/Area Number 09355011
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 電子デバイス・機器工学
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

UCHIDA Tatsuo  GRADUATE SCHOOL OF ENGINEERING, TOHOKU UNIVERSITY, PROFESSOR, 大学院・工学研究科, 教授 (60091659)

Co-Investigator(Kenkyū-buntansha) MIYASHITA Tetsuya  GRADUATE SCHOOL OF ENGINEERING, TOHOKU UNIVERSITY, ASSISTANT PROFESSOR, 大学院・工学研究科, 助教授 (10239402)
SEKI Hidehiro  DEPARTMENT OF ENGINEERING, HACHINOHE INSTITUTE OF TECHNOLOGY, PROFESSOR, 工学部, 教授 (30134018)
FUKUDA Ichiroh  DEPARTMENT OF ENGINEERING, KANAZAWA INSTITUTE OF TECHNOLOGY, PROFESSOR, 工学部, 教授 (10064445)
KAWAKAMI Tohru  GRADUATE SCHOOL OF ENGINEERING, TOHOKU UNIVERSITY, RESEARCH ASSOCIATE, 大学院・工学研究科, 助手 (90282102)
Project Period (FY) 1997 – 1999
KeywordsLiquid crystal / Display / High brightness / Full color / Moving image
Research Abstract

Reflective type liquid crystal displays (LCDs) have advantages of thin shape, light weight and low power consumption, while it was considered to be quite difficult to achieve sufficient brightness in reflective color LCD because of large absorption of the color filter. Then, we have already solved this problem by increasing the viewing angle of liquid crystal extremely and by collecting the reflected light into a certain angle range.
In this research, in order to realize a high performance reflective LCD with full color moving image, R-OCB mode with active-matrix-drive is adopted. We aimed to establish a theory of the optical designing and optimization of the liquid crystal panel, optical retardation films and polarizers. For this purpose, we newly proposed theoretical expression focusing on optical properties of the above mentioned elements. In this method we have succeeded to express the wavelength dependence and viewing angle dependence of each element by simple diagrammatic method.
By using this expression, almost all the optical characteristics of display can be treated theoretically and all the parameters to design the reflective display can be optimized and determined. As the result, we have designed an extremely high performance reflective LCD with high brightness, achromatic while in wide viewing angle range and very good dark state or very high contrast ratio in wide viewing angle range.
Finally, based on the above mentioned design condition, a high performance reflective full color LCD is actually fabricated as a trial. This LCD was confirmed to have extremely high contrast and almost no color shift in wide viewing angle range. In addition, this LCD has as high brightness as a color photograph in wide viewing angle (0 to 50 degrees from normal direction) and higher contrast the color photograph.

  • Research Products

    (64 results)

All Other

All Publications (64 results)

  • [Publications] T.Inomata,T.Miyashita,R.Mizoguchi,O.Okamato and T.Uchida: "Reflective Color-Sequential LCD without Micro-Color Filters Using Color Polarizers"Mol.Cryst.Liq.Cryst.. 315-321 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Iwakura,T.Sugiyama,S.Inoue,H.Seki,T.Miyashita and T.Uchida: "Optical Designing for a Bright Reflective Direct-Matrix-LCD Using Homeotropically Aligned Liquid Crystal"Mol.Cryst.Liq.Cryst.. 323-331 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Seki,T.Uwano and T.Uchida: "Color Matching of Guest-Host Liquid Crystal Displays"Mol.Cryst.Liq.Cryst.. 415-421 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Onda,T.Miyashita and T.Uchida: "Mechanism of Excellent Fast Response and Recover in OCB-Cell with Bend Alignment"Mol.Cryst.Liq.Cryst.. 383-389 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Uchida: "High Performance Reflective Color LCDs"The 19th International Display Research Conference. 471 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N.Koma,T.Miyashita and T.Uchida: "Using an OCB-Mode TFT-LCD for High-Speed Transision from Splay to Bend Alignment"1999 SID Symposium Digest of Technical Papers. 28-31 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Shibazaki,T.Ishinabe,T.Miyashita and T.Uchida: "Reflective LCD with High Brightness and Wide Viewing Angle by Using Optically Compensated Twist-LCD Cell(OCT)"1999 SID Symposium Digest Technical Papers. 690-693 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Ishinabe,T.Miyashita and T.Uchida: "Improvement of the Diffusing Property of Reflective LCDs Using R-OCB Cells"1999 SID Symposium Digest Technical Papers. 698-701 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Shibazaki,T.Ishinabe,T.Miyashita,T.Uchida,k.Yoshida,H.Tanaka and T.Sunata: "Reflective LCD with High Brightness and Wide Viewing Angle by Using Optically Compensated Twist LC Cell(OCT)"Digest of 1999 International Workshop on Active-Matrix Liquid-Crystal Displays. 57-60 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Miyatake,Y.Fujimura,T.Miyashita and T.Uchida: "Investigation of Anisotropic Scattering Films with Unique Function Such as Light Scattering Polarizer"Mol.Cryst.Liq.Cryst.. 423-430 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Araki,H.Chiba,M.Suzuki,T.Miyashita and T.Uchida: "Electrically Tunable Color Filter Using Liquid Crystal"The 19th International Display Research Conference. 133-136 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Shibazaki,T.Ishinabe,T.Miyashita,T.Uchida,K.Yoshida,H.Tanaka and T.Sunata: "A Full-Color Reflective TFT LCD Compensated Twist Mode with Wide Viewing Angle"Proceedings of The Sixth International Display Workshops. 211-214 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Uwano,H.Seki and T.Uchida: "Optical Characteristics of a Linear Polarizer for Reflective LCDs"Proceedings of The Sixth International Display Workshops. 343-346 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Ishinabe,T.Miyashita,TUchida: "Optical Design of R-OCB Mode Full-Color Reflective LCD with Wide Viewing Angle and High Contrast"1998 SID International Symposium Digest of Technical Papers(Anaheim Convention Center, Calfornia). 774-777 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Uchida: "Advanced Liquid Crystal Displays"Proceedings of the 18th International Display Research Conference"Asia Display'98"(Seoul). 45-50 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Uwano,H.Seki and T.Uchida: "Dye Combination of Guest-Host Liquid Crystal Displays"Proceedings of the 18th International Display Research Conference"Asia Display'98"(Seoul). 901-904 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Onda,T.Miyasita and T.Uchida: "Dynamic Behavior of OCB-cell with Fast Response for Color Sequential Liquid Crystal Display"Proceedings of the 18th International Display Research Conference"Asia Display'98"(Seoul). 1055-1058 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] I.Fukuda,N.Matui,Y.Kotani and T.Uchida: "Refrective-Type TN-LCDs with single polarizer"Proceedings of SPIE(San Diego). 3475. 24-34 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Shibazaki,T.Ishinabe,M.Miyai,K.Yoshida,Y.Ugai,T.Miyashita and T.Uchida: "Full-color refrective TFT-LCD using the R-OCB Mode with a wide viewing angle and high contrast ratio"Proceedings of the 18th International Display Research Conference"Asia Display'98"(Seoul). 51-54 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Ohizumi,T.Miyashita,T.Uchida and M.Kano: "Optimization for Reflective STN-LCDs with a Single Polarizer"Proceedings of the 18th International Display Research Conference"Asia Display'98"(Seoul). 1059-1062 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Uwano,H.Seki and T.Uchida: "Color Matching in Reflective Guest-Host Liquid Crystal Displays"Proceedings of the Fifth International Display Workshops(Kobe). 37-40 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Uchida: "Field Sequential Full Color LCD without Color Filter by Using Fast Response LC Cell"Proceedings of the Fifth International Display Workshops(Kobe). 151-154 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] E.Aminaka,Y.Nishiura,Y.Shinagawa,T.Miyashita and T.Uchida: "Analysis of Alignment and Anchoring Energy in Discotic Liquid Crystal Films for Wide Viewing Angle of LCDs"Proceedings of the Fifth International Display Workshops(Kobe). 853-854 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Y.Han,T.Uchida and S.B.Kwon: "A Novel Optical Mesurement Method for the Determination of LC Pretilt Angle without a Restriction of Pretilt Magnitude and a Cell Gap of LC"Mol.Cryst.Liq.Cryst.. 157-162 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Seki,N.Sugiura,M.Shimizu and T.Uchida: "A New Reflective Color Guest-Host Display with Scattering Effect"Mol.Cryst.Liq.Cryst.. 125-131 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Wako,K.Y.Han and T.Uchida: "Relation Among Micro-Structure of Rubbing Fiber, Shape of the Microgroove of Rubbed Polymer and its Anchoring Strength"Mol.Cryst.Liq.Cryst.. 235-246 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N.Sugiura and T.Uchida: "Designing Bright Reflective Full-Color LCDs Using an Optimized Reflector"1997 SID International Symposium Digest of Technical Papers(Hynes Convention Center,Boston). 1011-1014 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Ishinabe,T.Uchida,T.Miyashita and M.Suzuki: "Optical Design of R-OCB Mode Reflective LCD"1997 International Workshop on Active-Matrix Liquid-Crystal Displays(Kogakuin Univ.,Tokyo). 135-138 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Uchida,K.Saitoh,T.Miyashita and M.Suzuki: "Field Sequential Full Color LCD without Color Filter for AM-LCD"The 17th International Display Research Conference(Tront Canada). 37-40 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Ueno,L.Xuan,T.Tohyama,T.Miyashita and T.Uchida: "Mechanism of Molecular Alignment on the Rubbed Surface"The 17th International Display Research Conference(Tront Canada). L18-L20 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Wako,K.Y.Han,T.Oshima,T.Miyashita and T.Uchida: "Evalution of the Anchoring Strengh of Liquid Crystal Based on Rubbed Area Density"The 17th International Display Research Conference(Tront Canada). L21-L24 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 内田龍男、関秀廣他: "エレクトロニクス材料・技術シリーズ反射カラーLCD総合技術"株式会社 シーエムシー. 262 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T. Inomata, T. Miyashita, R. Mizoguchi, O. Okamoto and T. Uchida: "Reflective Color-Sequential LCD without Micro-Color Filters Using Color Polarizers"Mol. Cryst. Liq. Cryst.. 315-321 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y. Iwakura, T. Sugiyama, S. Inoue, H. Seki, T. Miyashita and T. Uchida: "Optical Designing for a Bright Reflective Direct-Matrix-LCD Using Homeotropically Aligned Liquid Crystal"Mol. Cryst. Liq. Cryst. 323-331 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Seki, T. Uwano, And T. Uchida: "Color Matching of Guest-Host Liquid Crystal Displays"Mol. Cryst. Liq. Cryst. 415-421 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S. Onda, T. Miyashita and T. Uchida: "Mechanism of Excellent Fast Response and Recover n OCB-Cell with Bend Alignment"Mol. Cryst. Liq. Cryst. 383-389 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Uchida: "High Performance Reflective Color LCDs"The 19th International Display Research Conference. 471 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Koma, T. Miyashita and T. Uchida: "Using an OCB-Mode TFT-LCD for High-Speed Transition from Splay to Bend Alignment"1999 SID Symposium Digest of Technical Papers. 28-31 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Shibazaki, T. Ishinabe, T. Miyashita and T. Uchida: "Reflective LCD with High Brightness and Wide Viewing Angle by Using Optically Compensated Twist-LCD Cell (OCT)"1999 SID Symposium Digest of Technical Papers. 690-693 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Ishinabe, T. Miyashita and T. Uchida: "Improvement of the Diffusing Property of Reflective LCDs Using R-OCB Cells"1999 SID Symposium Digest of Technical Papers. 698-701 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Shibazaki, T. Ishinabe, T. Miyashita, T. Uchida, K. Yoshida, H. Tanaka and T. Sunata: "Reflective LCD with High Brightness and Wide Viewing Angle by Using Optically Compensated Twist LC Cell (OCT)"Digest of 1999 International Workshop on Active-Matrix Liquid-Crystal Displays. 57-60 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Miyatake, Y. Fujimura, T. Miyashita and T. Uchida: "Investigation of Anisotropic Scattering Films with Unique Functions Such as Light Scattering Polarizer"Mol. Cryst. Liq. Cryst.. 423-430 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S. Araki, H. Chiba, M. Suzuki, T. Miyashita and T. Uchida: "Electrically Tunable Color Filter Using Liquid Crystal"The 19th International display Research Conference. 133-136 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Shibazaki, T. Ishinabe, T. Miyashita, T. Uchida, K. Yoshida, H. Tanaka and T. Sunata: "A Full-Color Reflective TFT LCD Compensated Twist Mode with Wide Viewing Angle"Proceedings of The Sixth International Display Workshops. 211-214 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Uwano, H. Seki and T. Uchida: "Optical Characteristics of a Linear Polarizer for Reflective LCDs"Proceedings of The Sixth International Display Workshops. 343-346 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Ishinabe, T. Miyashita, T. Uchida: "Optical Design of R-OCB Mode Full-Color Reflective LCD with Wide Viewing Angle and High Contrast"1998 SID International Symposium Digest of Technical Papers (Anaheim Convention Center, California). 774-777 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Uchida: "Advanced Liquid Crystal Displays"Proceedings of the 18th International Display Research Conference. 45-50 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Uwano, H. Seki and T. Uchida: "Dye Combination of Guest-Host Liquid Crystal Displays"Proceedings of the 18th International Display Research Conference "Asia Display '98" (Seoul). 901-904 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S. Onda, T. Miyashita and T. Uchida: "Dynamic Behavior of OCB-cell with Fast Response for Color Sequential Liquid Crystal Display"Proceedings of the 18th International Display Research Conference "Asia Display '98" (Seoul). 1055-1058 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] I. Fukuda, N. Matui, Y. Kotani and T. Uchida: "Refrective0Type TN-LCDs with single polarizer"Proceedings of SPIE (San Diego). Vol. 3475. 24-34 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Shibazaki, T. Ishinabe, M. Miyai, K. Yoshida, Y. Ugai, T. Miyashita, and T. Uchida: "Full-color reflective TFT-LCD using the R-OCB Mode with a wide viewing angle and high contrast ratio"Proceedings of the 18th International Display Research Conference "Asia Display '98" (Seoul). 51-54 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Ohizumi, T. Miyashita, T. Uchida and M. Kato: "Optimization for Reflective Guest-Host Liquid Crystal Displays"Proceedings of the 18th International Display Research Conference "Asia Display '98" (Seoul). 1059-1062 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Uwano, H. Seki and T. Uchida: "Color Matching in Reflective Guest-Host Liquid Crystal Displays"Proceedings of the Fifth International Display Workshops (Kobe). 37-40 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Uchida: "Field Sequential Full Color LCD without Color Filter by Using Fast Response LC Cell"Proceedings of the Fifth International Display Workshops (Kobe). 151-154 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] E. Amiaka, Y. Nishiura, Y. Shinagawa, T. Miyashita and T. Uchida: "Analysis of Alignment and Anchoring Energy in Discotic Liquid Crystal Films for Wide Viewing Angle of LCDs"Proceedings of the Fifth International Display Workshops (Kobe). 853-854 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Y. Han, T. Uchida and S.B. Kwon: "A Novel Optical Measurement Method for the Determination of LC Pretilt Angle without a Restriction of Pretilt Magnitude and a Cell Gap of LC"Mol. Cryst. Liq. Cryst.. 157-162 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Seki, N. Sugiura, M. Shimizu and T. Uchida: "A New Reflective Color Guest-Host Display with Scattering Effect"Mol. Cryst. Liq. Cryst.. 125-131 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K. Wako, K.Y. Han and T. Uchida: "Relation Among Micro-Structure of Rubbing Fiber, Shape of the Microgroove of Rubbed Polymer and it Anchoring strength"Mol. Cryst. Liq. Cryst.. 235-246 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Sugiura and T. Uchida: "Designing Bright Reflective Full-Color LCDs Using an Optimized Reflector"1997 SID International Symposium Digest of Technical Papers (Hynes Convention Center, Boston). 1011-1014 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Ishinabe, T. Uchida, T. Miyashita and M. Suzuki: "Optical Design of R-OCB Mode Reflective LCD"1997 International Workshop on Active-Matrix Liquid-Crystal Displays (Kogakuin Univ., Tokyo). 135-138 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Uchida, K, Saitoh, T. Miyashita and M. Suzuki: "Field Sequential Full Color LCD without Color Filter for AM-LCD"The 17th International Display Research Conference (Tront Canada). 37-40 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Ueno, L. Xuan, T. Tohyama, T. Miyashita and T. Uchida: "Mechanism of Molecular Alignment on the Rubbed Surface"The 17th International Display Research Conference (Tront Canada). L18-L20 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K. Wako, K.Y. Han, T. Oshima, T. Myashita and T. Uchida: "Evaluation of the Anchoring Strength of Liquid Crystal Based on Rubbed Area Density"The 17th International Display Research Conference (Tront Canada). L21-L24 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Seki and T. Uchida: "Series of Electronic Material and Technology "Technology of Reflective Color LCDs""C.M.C. Co., Ltd. 1-262 (1998)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2001-10-23  

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