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1. (WO2007079148) AN OPTICAL FILM COMPOSITE FOR TF SYSTEMS HAVING INTEGRATED FUNCTIONS OF LIGHT DIFFUSION AND REFLECTIVE POLARIZATION
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2007/079148 International Application No.: PCT/US2006/049436
Publication Date: 12.07.2007 International Filing Date: 28.12.2006
IPC:
G02B 5/30 (2006.01) ,G02F 1/1335 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
30
Polarising elements
G PHYSICS
02
OPTICS
F
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1
Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
133
Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333
Constructional arrangements
1335
Structural association of optical devices, e.g. polarisers, reflectors, with the cell
Applicants: LEE, Seo-Hern,[KR/KR]; KR (UsOnly)
KANG, Myeong-Kyun,[KR/KR]; KR (UsOnly)
KIM, Youn-Sihn,[KR/KR]; KR (UsOnly)
CHOI, Jong-Bok,[KR/KR]; KR (UsOnly)
3M INNOVATIVE PROPERTIES COMPANY[US/US]; 3M CENTER Post Office Box 33427 Saint Paul, MN 55133-3427, US (AllExceptUS)
Inventors: LEE, Seo-Hern,; KR
KANG, Myeong-Kyun,; KR
KIM, Youn-Sihn,; KR
CHOI, Jong-Bok,; KR
Agent: PECHMAN, Robert J. ; 3M CENTER OFFICE OF INTELLECTUAL PROPERTY COUNSEL Post Office Box 33427 Saint Paul, MN 55133-3427, US
Priority Data:
10-2005-013469930.12.2005KR
Title (EN) AN OPTICAL FILM COMPOSITE FOR TF SYSTEMS HAVING INTEGRATED FUNCTIONS OF LIGHT DIFFUSION AND REFLECTIVE POLARIZATION
(FR) FILM OPTIQUE COMPOSITE POUR SYSTÈMES TF AYANT DES FONCTIONS INTÉGRÉES DE DIFFUSION DE LA LUMIÈRE ET DE POLARISATION RÉFLECTIVE
Abstract:
(EN) The present invention provides an optical film composite that comprises a linear reflective polarizing film; a birefringent polymeric substrate layer placed on the reflective polarizing film; and a TF (turning film) layer placed beneath the reflective polarizing film. The optical axis of the birefringent polymeric substrate layer is oriented with respect to the transmission axis of the reflective polarizing film to have 0° to 25° of an angular difference between the axes. The optical film composite can be employed in LCD devices to improve optical performance.
(FR) La présente invention concerne un film optique composite qui comprend un film polarisant à réflexion linéaire, une couche de substrat polymère biréfringent placée sur le film polarisant réfléchissant et une couche de film d’accord (TF) placée sous le film polarisant réfléchissant. L’axe optique de la couche de substrat polymère biréfringent est orienté par rapport à l’axe de transmission du film polarisant réfléchissant de manière à obtenir une différence angulaire de 0 à 25° entre les axes. Le film optique composite peut être utilisé dans des dispositifs d’affichage à cristaux liquides pour améliorer les performances optiques.
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, GT, HN, 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, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, 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 Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (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)