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1. (WO2018085497) MULTIPLEXING BACKLIGHT WITH ASYMMETRIC TURNING FILM
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.:    WO/2018/085497    International Application No.:    PCT/US2017/059660
Publication Date: 11.05.2018 International Filing Date: 02.11.2017
IPC:
G02B 5/04 (2006.01), G02B 6/00 (2006.01), F21V 5/00 (2018.01), F21V 13/00 (2006.01), F21V 8/00 (2006.01), G02F 1/1335 (2006.01)
Applicants: 3M INNOVATIVE PROPERTIES COMPANY [US/US]; 3M Center Post Office Box 33427 Saint Paul, Minnesota 55133-3427 (US)
Inventors: EPSTEIN, Kenneth A.; (US).
JOHNSON, Nicholas A.; (US).
LAUTERS, Michael E.; (US).
SIEFKEN, Shannon L.; (US).
BOYD, Gary T.; (US)
Agent: FULTON, Lisa P.,; (US).
RHODES, Kevin H.; (US).
BLANK, Colene H.,; (US).
HARTS, Dean M. ,; (US).
LEVINSON, Eric D.,; (US).
MAKI, Eloise J.,; (US).
NOWAK, Sandra K.,; (US).
OLSON, Peter L.,; (US).
RINGSRED, Ted K.,; (US)
Priority Data:
62/417,054 03.11.2016 US
Title (EN) MULTIPLEXING BACKLIGHT WITH ASYMMETRIC TURNING FILM
(FR) RÉTROÉCLAIRAGE À MULTIPLEXAGE COMPORTANT UN FILM TOURNANT ASYMÉTRIQUE
Abstract: front page image
(EN)The disclosure describes asymmetric turning films (ATFs) that may be used in conjunction with multiple light sources in a liquid crystal display assembly to provide multiple different characteristic output distributions of light. In some examples, the ATFs include a structured surface defining a plurality of microstructures having two or more faces with each face configured to reflect light in different directions. The microstructure may define a microstructure axis and an angle gradient characterizing the rotation of the microstructure axis across the structured surface of the ATF.
(FR)L'invention concerne des films tournants asymétriques (ATF) qui peuvent être utilisés conjointement avec de multiples sources de lumière dans un ensemble d'affichage à cristaux liquides pour fournir de multiples distributions de sortie caractéristiques différentes de la lumière. Dans certains exemples, les ATF comprennent une surface structurée délimitant une pluralité de microstructures ayant deux faces ou plus, chaque face étant conçue pour réfléchir la lumière dans différentes directions. La microstructure peut délimiter un axe de microstructure et un gradient d'angle caractérisant la rotation de l'axe de microstructure à travers la surface structurée de l'ATF.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)