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1. (WO2007001999) MULTILAYERED OPTICAL COMPENSATOR
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/001999 International Application No.: PCT/US2006/023843
Publication Date: 04.01.2007 International Filing Date: 16.06.2006
IPC:
G02B 5/30 (2006.01) ,G02F 1/13363 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
30
Polarising elements
[IPC code unknown for ERROR IPC Code incorrect: invalid subgroup (0=>999999)!]
Applicants:
NITTO DENKO CORPORATION [JP/JP]; 1-1-2, Shimohozumi Ibaraki Osaka 567-8680, JP (AllExceptUS)
ELMAN, James Frank [US/US]; US (UsOnly)
GAMBLE, William James [US/US]; US (UsOnly)
HURLEY, Daniel Francis [US/US]; US (UsOnly)
Inventors:
ELMAN, James Frank; US
GAMBLE, William James; US
HURLEY, Daniel Francis; US
Agent:
WRIGHT, Lee, C.; Westerman, Hattori, Daniels and Adrian, LLP 1250 Connecticut Avenue, N.W. Suite 700 Washington, DC 20036-2657, US
Priority Data:
11/159,68323.06.2005US
Title (EN) MULTILAYERED OPTICAL COMPENSATOR
(FR) COMPENSATEUR OPTIQUE MULTICOUCHE
Abstract:
(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 (Dnth) birefringence not more negative than -0.01 and not more positive than +0.01. The second layers comprise an amorphous polymer having an out-of-plane birefringence more negative than -0.01 or more positive than +0.01. An overall in-plane retardation (Rin) of the multilayer compensator is greater than 20nm and the out-of-plane retardation (Rth) of the multilayer compensator is more negative than -20nm or more positive than +20nm. The in-plane retardation (Rin) of the one or more first layers is 30% or less of the overall in-plane retardation (Rin) of the multilayer compensator.
(FR) La présente invention concerne un compensateur multicouche qui comprend une ou plusieurs premières couches de polymère et une ou plusieurs secondes couches de polymère. Les premières couches contiennent un polymère caractérisé par une biréfringence hors plan (Dnth) non inférieure à -0,01 et non supérieure à +0,01. Les secondes couches contiennent un polymère amorphe caractérisé par une biréfringence hors plan inférieure à -0,01 ou supérieure à +0,01. Le retard global dans le plan (Rin) du compensateur multicouche est supérieur à 20 nm et le retard hors plan (Rth) du compensateur multicouche est inférieur à -20 nm ou supérieur à +20 nm. Le retard dans le plan (Rin) de la ou des premières couches est inférieur ou égal à 30 % du retard global dans le plan (Rin) du compensateur multicouche.
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 (ARIPO) (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)
Also published as:
KR1020080020628JP2008544304CN101253427