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1. (WO2007002050) MULTI-LAYERED COMPENSATION FILM USING SPECIFIED TG MATERIAL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/002050    International Application No.:    PCT/US2006/023927
Publication Date: 04.01.2007 International Filing Date: 19.06.2006
IPC:
G02B 5/30 (2006.01), G02F 1/13363 (2006.01)
Applicants: NITTO DENKO CORPORATION [JP/JP]; 1-1-2, Shimohozumi, Ibaraki, Osaka 567-8680 (JP) (For All Designated States Except US).
GREENER, Jehuda [US/US]; (US) (For US Only).
ELMAN, James Frank [US/US]; (US) (For US Only).
RAO, YuanQiao [CN/US]; (US) (For US Only).
HAMMERSCHMIDT, Jon Andrew [US/US]; (US) (For US Only).
BAILEY, David Benedict [US/US]; (US) (For US Only)
Inventors: GREENER, Jehuda; (US).
ELMAN, James Frank; (US).
RAO, YuanQiao; (US).
HAMMERSCHMIDT, Jon Andrew; (US).
BAILEY, David Benedict; (US)
Agent: WESTERMAN HATTORI DANIELS & ADRIAN, LLP; 1250 Connecticut Ave., N.W., Suite 700, Washington, D.C.20036 (US)
Priority Data:
11/165,090 23.06.2005 US
Title (EN) MULTI-LAYERED COMPENSATION FILM USING SPECIFIED TG MATERIAL
(FR) FILM DE COMPENSATION MULTICOUCHE UTILISANT UN MATERIAU A TG SPECIFIEE
Abstract: front page image
(EN) A multilayer compensator includes one or more polymeric first layers and one or more polymeric second layers. The first layers comprise a polymer having an out-of-plane birefringence between -0.005 and +0.005. The second layers comprise an amorphous polymer having an out-of-plane birefringence that is either less than -0.005 or greater than +0.005. The overall in-plane retardation of the multilayer compensator is greater than 20nm, and the out-of-plane retardation is more negative than -20nm or more positive than +20nm. The amorphous polymer of the second layer(s) has a glass transition temperature (Tg) such that 110°C < Tg <180°C when the Rth of the multilayer compensator is more negative than -20nm, and 100°C < Tg <160°C when the Rth of the multilayer compensator is more positive than +20nm.
(FR)L'invention concerne un compensateur multicouche qui comprend une ou plusieurs premières couches polymères et une ou plusieurs deuxièmes couches polymères. Les premières couches comprennent un polymère présentant une biréfringence hors plan comprise entre -0,005 et +0,005. Les deuxièmes couches comprennent un polymère amorphe présentant une biréfringence hors plan inférieure à -0,005 ou supérieure à +0,005. Le retard dans le plan global du compensateur multicouche est supérieur à 20nm, et la valeur du retard hors plan est plus négative que -20nm ou plus positive que +20nm. Le polymère amorphe des deuxièmes couches présente une température de transition vitreuse (Tg) telle que 110 °C < Tg <180 °C lorsque la valeur du retard hors plan (Rth) du compensateur multicouche est plus négative que -20nm, et telle que 100 °C < Tg <160 °C lorsque la valeur du Rth du compensateur multicouche est plus positive que +20nm.
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, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, 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, LV, 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: English (EN)
Filing Language: English (EN)