WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |

Search International and National Patent Collections
World Intellectual Property Organization
Machine translation
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/114859    International Application No.:    PCT/JP2005/007410
Publication Date: 02.11.2006 International Filing Date: 18.04.2005
G02F 1/141 (2006.01), G02F 1/1368 (2006.01)
Applicants: FUJITSU LIMITED [JP/JP]; 1-1, Kamikodanaka 4-chome, Nakahara-ku, Kawasaki-shi, Kanagawa 2118588 (JP) (For All Designated States Except US).
YOSHIHARA, Toshiaki; (For US Only).
MAKINO, Tetsuya; (For US Only).
TADAKI, Shinji; (For US Only).
SHIROTO, Hironori; (For US Only).
KIYOTA, Yoshinori; (For US Only).
BETSUI, Keiichi; (For US Only)
Inventors: YOSHIHARA, Toshiaki; .
MAKINO, Tetsuya; .
TADAKI, Shinji; .
SHIROTO, Hironori; .
KIYOTA, Yoshinori; .
BETSUI, Keiichi;
Agent: KOHNO, Takao; KOHNO PATENT OFFICE, 4-3, Tsuriganecho 2-chome Chuo-ku Osaka-shi, Osaka 5400035 (JP)
Priority Data:
(JA) 液晶表示装置
Abstract: front page image
(EN)Ten liquid crystal panels prepared by injecting ten kinds of liquid crystal materials having voluntary polarizations individually between a TFT substrate having no storage capacity and a common substrate are measured on the transmissivity at the time when voltages (7V and 5 V) are applied to the liquid crystals. In the cases of applied voltages of 7 V and 5 V, a transmissivity of 50 % or more is obtained, if the conditions of ‖2Ps·A‖ ≤ ‖7Clc·A‖ and ‖2Ps·A‖ ≤ ‖5Clc·A‖ are satisfied among the magnitude Ps(nC/cm2) of the voluntary polarization per unit area of the liquid crystal material, the electrode area A (cm2) of pixels and the liquid crystal capacity Clc (nF/cm2) per unit area, and a transmissivity of 80 % or more is obtained, if the conditions of ‖2Ps·A‖ ≤ ‖4.5Clc·A‖ and ‖2Ps·A‖ ≤ ‖3Clc·A‖ are satisfied. A sufficiently high transmissivity can be obtained without any storage capacity.
(FR)La présente invention concerne dix panneaux à cristaux liquides, préparés en injectant dix types de matériaux à cristaux liquides ayant des polarisations volontaires individuellement entre un substrat TFT n’ayant aucune capacité de stockage et un substrat commun, et dont la transmissivité est mesurée au moment où les tensions (7 V et 5 V) sont appliquées aux cristaux liquides. Dans les cas de tensions appliquées de 7 V et 5 V, une transmissivité de 50 % ou plus est obtenue, si les conditions de ‖2Ps·A‖ ≤ ‖7Clc·A‖ et ‖2Ps·A‖ ≤ ‖5Clc·A‖ sont satisfaites pour la magnitude Ps(nC/cm2) de la polarisation volontaire par unité de surface du matériau à cristaux liquides, la surface de pixels de l’électrode A (cm2) et la capacité des cristaux liquides Clc (nF/cm2) par unité de surface, et une transmissivité de 80 % ou plus est obtenue, si les conditions de ‖2Ps·A‖ ≤ ‖4,5Clc·A‖ et ‖2Ps·A‖ ≤ ‖3Clc·A‖ sont satisfaites. Une transmissivité suffisamment élevée peut être obtenue sans aucune capacité de stockage.
(JA) 蓄積容量を設けないTFT基板と共通基板との間に自発分極を有する10種類の液晶材料を夫々注入した10枚の液晶パネルに対して、液晶に電圧(7V及び5V)を印加したときの透過率を測定した。印加電圧が7V,5Vである場合、液晶材料の単位面積あたりの自発分極の大きさPs(nC/cm)と、画素の電極面積A(cm)と、単位面積あたりの液晶容量Clc(nF/cm)との間に、|2Ps・A|≦|7Clc・A|,|2Ps・A|≦|5Clc・A|の条件を満たす場合に50%以上の透過率、|2Ps・A|≦|4.5Clc・A|,|2Ps・A|≦|3Clc・A|の条件を満たす場合に80%以上の透過率が得られる。蓄積容量を設けなくても、十分に高い透過率が得られる。                                                                                           
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)