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1. (WO2019046340) DIRECT-LIT BACKLIGHT UNIT WITH 2D LOCAL DIMMING
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Pub. No.: WO/2019/046340 International Application No.: PCT/US2018/048404
Publication Date: 07.03.2019 International Filing Date: 28.08.2018
IPC:
F21V 7/04 (2006.01) ,F21V 7/00 (2006.01) ,G02F 1/335 (2006.01) ,G09F 13/04 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
7
Reflectors for light sources
04
Optical design
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
7
Reflectors for light sources
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
29
for the control of the position or the direction of light beams, i.e. deflection
33
Acousto-optical deflection devices
335
having an optical waveguide structure
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
F
DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
13
Illuminated signs; Luminous advertising
04
Signs, boards, or panels, illuminated from behind the insignia
Applicants:
CORNING INCORPORATED [US/US]; One Riverfront Plaza Corning, New York 14831, US
Inventors:
KUKSENKOV, Dmitri, Vladislavovich; US
LOEBER, David, August, Sniezek; US
MI, Xiang-Dong; US
Agent:
MASON, Matthew, J.; US
Priority Data:
62/551,49329.08.2017US
Title (EN) DIRECT-LIT BACKLIGHT UNIT WITH 2D LOCAL DIMMING
(FR) UNITÉ DE RÉTROÉCLAIRAGE À ÉCLAIRAGE DIRECT À GRADATION LOCALE 2D
Abstract:
(EN) Backlight units include a light guide plate having a plurality of light extraction features, at least one light source optically coupled to a second major surface of the light guide plate, a rear reflector positioned proximate the second major surface, and a patterned reflective layer positioned proximate a first major surface of the light guide plate. Display and lighting devices comprising such backlight units are further disclosed.
(FR) La présente invention concerne des unités de rétroéclairage comprenant une plaque de guidage de lumière pourvue d'une pluralité d'éléments d'extraction de lumière, au moins une source de lumière couplée optiquement à une seconde surface principale de la plaque de guidage de lumière, un réflecteur arrière positionné à proximité de la seconde surface principale, et une couche réfléchissante à motifs positionnée à proximité d'une première surface principale de la plaque de guidage de lumière. L’invention concerne en outre des dispositifs d’affichage et d’éclairage comprenant de telles unités de rétroéclairage.
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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 (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)