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1. (WO2007001938) MULTILAYER OPTICAL COMPENSATOR, DISPLAY, AND PROCESS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/001938 International Application No.: PCT/US2006/023689
Publication Date: 04.01.2007 International Filing Date: 16.06.2006
IPC:
G02F 1/13363 (2006.01) ,B32B 23/08 (2006.01) ,B32B 27/36 (2006.01) ,G02B 1/04 (2006.01)
[IPC code unknown for ERROR IPC Code incorrect: invalid subgroup (0=>999999)!]
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
23
Layered products essentially comprising cellulosic plastic substances
04
comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance
08
of synthetic resin
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27
Layered products essentially comprising synthetic resin
36
comprising polyesters
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1
Optical elements characterised by the material of which they are made; Optical coatings for optical elements
04
made of organic materials, e.g. plastics
Applicants:
NITTO DENKO CORPORATION [JP/JP]; 1-1-2, Shimohozumi Ibaraki Osaka, 567-8680, JP (AllExceptUS)
ELMAN, James, Frank [US/US]; US (UsOnly)
HAMMERSCHMIDT, Jon, Andrew [US/US]; US (UsOnly)
Inventors:
ELMAN, James, Frank; US
HAMMERSCHMIDT, Jon, Andrew; US
Agent:
WESTERMAN, HATTORI, DANIELS & ADRIAN, LLP; 1250 Connecticut Avenue, NW-Suite 700 Washington, DC 20036-2657, US
Priority Data:
11/159,73623.06.2005US
Title (EN) MULTILAYER OPTICAL COMPENSATOR, DISPLAY, AND PROCESS
(FR) COMPENSATEUR OPTIQUE MULTICOUCHES, AFFICHAGE ET PROCEDE ASSOCIES
Abstract:
(EN) Disclosed is a particular multilayer compensator polymeric film for a LC cell comprising two or more first layers having an out-of-plane birefringence not more negative than -0.005 and one or more second layers having an out-of- plane birefringence more negative than -0.005, wherein the second layers are amorphous and comprise selected polymeric materials having sufficient thickness so that the overall in-plane retardation (Re) of the compensator is from 0 to 300nm and the out-of-plane retardation (Rth) of at least one of the one or more second layers is more negative than -20nm.
(FR) L'invention concerne un film polymère de compensateur multicouche spécifique destiné à une cellule LC comprenant au moins deux premières couches présentant une biréfringence hors plan pas plus négative que -0.005 et au moins une seconde couche présentant une biréfringence hors plan pas plus négative que -0.005, les secondes couches étant amorphes et comprenant des matériaux polymères sélectionnés possédant une épaisseur suffisante de manière que le retard hors plan global (Re) du compensateur soit compris entre 0 et 300nm et que le retard hors plan (Rth) des secondes couches soit plus négatif que -20nm.
front page image
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)