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1. (WO2013116623) BIDIRECTIONAL LIGHT SHEET
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2013/116623 International Application No.: PCT/US2013/024312
Publication Date: 08.08.2013 International Filing Date: 01.02.2013
IPC:
F21K 99/00 (2010.01) ,H01L 25/075 (2006.01) ,H01L 33/62 (2010.01) ,F21Y 101/02 (2006.01) ,F21Y 103/00 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
K
LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
99
Subject matter not provided for in other groups of this subclass
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
25
Assemblies consisting of a plurality of individual semiconductor or other solid state devices
03
all the devices being of a type provided for in the same subgroup of groups H01L27/-H01L51/128
04
the devices not having separate containers
075
the devices being of a type provided for in group H01L33/78
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33
Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
48
characterised by the semiconductor body packages
62
Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
Y
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L, F21S and F21V104
101
Point-like light sources
02
Miniature, e.g. light emitting diodes (LED)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
Y
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L, F21S and F21V104
103
Elongated light sources, e.g. fluorescent tubes
Applicants: THE PROCTER & GAMBLE COMPANY[US/US]; One Procter & Gamble Plaza Cincinnati, Ohio 45202, US
Inventors: HASENOEHRL, Erik, John; US
MCGUIRE, Kenneth, Stephen; US
Agent: GUFFEY, Timothy B.; c/o The Procter & Gamble Company Global Patent Services 299 East 6th Street Sycamore Building, 4th Floor Cincinnati, Ohio 45202, US
Priority Data:
61/593,88502.02.2012US
Title (EN) BIDIRECTIONAL LIGHT SHEET
(FR) FEUILLE DE LUMIÈRE BIDIRECTIONNELLE
Abstract:
(EN) A solid state light sheet (10) and method of fabricating the sheet are disclosed. In one embodiment, bare LED chips have top and bottom electrodes, where the bottom electrode is a large reflective electrode. The bottom electrodes of an array of LEDs (e.g., greater than 1,000 LEDs) (12) are bonded to an array of electrodes formed on a flexible bottom substrate. Conductive traces are formed on the bottom substrate connected to the electrodes. A transparent top substrate having conductors is then laminated over the bottom substrate. Various ways to connect the LEDs in series are described along with many embodiments. The light sheets (10) may be formed to emit light from opposite surfaces of the light sheet, enabling it to be used in a hanging fixture to illuminate the ceiling as well as the floor.
(FR) L'invention porte sur une feuille de lumière à semi-conducteurs (10) et sur un procédé de fabrication de la feuille. Dans un mode de réalisation, des puces de diodes électroluminescentes nues ont des électrodes supérieure et inférieure, l'électrode inférieure étant une grande électrode réfléchissante. Les électrodes inférieures d'un groupement de diodes électroluminescentes (par exemple, de plus de 1000 diodes électroluminescentes) (12) sont reliées à un groupement d'électrodes formées sur un substrat inférieur souple. Des pistes conductrices sont formées sur le substrat inférieur connecté aux électrodes. Un substrat supérieur transparent ayant des conducteurs est ensuite stratifié sur le substrat inférieur. Différentes façons de connecter les diodes électroluminescentes en série sont décrites avec de nombreux modes de réalisation. Les feuilles de lumière (10) peuvent être formées de façon à émettre une lumière à partir de surfaces opposées de la feuille de lumière, permettant à celle-ci d'être utilisée dans une monture suspendue pour éclairer le plafond ainsi que le plancher.
front page image
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, DK, DM, DO, 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, 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, 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, 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, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)