Optoelectronic circuit comprising light emitting diodes

Patent metadata

Field	Value
Publication number	US-2019342956-A1
Application number	US-201616066622-A
Country	US
Kind code	A1
Filing date	Dec 28, 2016
Priority date	Dec 29, 2015
Publication date	Nov 7, 2019
Grant date	—

Abstract

An optoelectronic circuit including series-connected sets of light emitting diodes and a module for controlling said sets, the sets of light emitting diodes being arranged on a support and being distributed among a series of aligned basic circuits which are located on the support and each of which includes at least one light emitting diode from each set.

First claim

1 . An optoelectronic circuit comprising series-connected assemblies of light-emitting diodes and a module for controlling said assemblies, the assemblies of light-emitting diodes being arranged on a support and being distributed on a succession of aligned elementary circuits located on the support, each elementary circuit comprising at least one light-emitting diode of each assembly.

2 . The optoelectronic circuit of claim 1 , wherein each assembly comprises groups, connected in parallel, of light-emitting diodes.

3 . The optoelectronic circuit of claim 2 , wherein, for each assembly, each elementary circuit comprises the light-emitting diodes of at least one of the groups of said assembly.

4 . The optoelectronic circuit of claim 3 , wherein each elementary circuit is divided into circuit segments, and wherein, for each group, the light-emitting diodes of said group are distributed over all the circuit segments.

5 . The optoelectronic circuit of claim 4 , wherein the circuit segments are aligned.

6 . The optoelectronic circuit of claim 1 , wherein each elementary circuit further comprises a current-limiting circuit.

7 . The optoelectronic circuit of claim 6 , wherein the current-limiting circuits are connected in parallel.

8 . The optoelectronic circuit of claim 6 , wherein each current-limiting circuit comprises a resistor.

9 . The optoelectronic circuit of claim 1 , comprising at least in aligned fashion on the support, successively:
the control module; and said assemblies of light-emitting diodes distributed over said succession of elementary circuits.

10 . The optoelectronic circuit of claim 9 , further comprising:
an additional control module; and additional assemblies of light-emitting diodes distributed over an additional succession of elementary circuits located on successive aligned portions of the support, each elementary circuit of the additional succession comprising at least one light-emitting diode of each additional assembly.

11 . A method of manufacturing the optoelectronic circuit of claim 1 , comprising the steps of:
manufacturing an initial optoelectronic circuit comprising the series-connected assemblies of light-emitting diodes and the module for controlling said assemblies, and further comprising additional assemblies of light-emitting diodes distributed over an additional succession of aligned elementary circuits located on the support, each elementary circuit of the additional succession comprising at least one light-emitting diode of each additional assembly; and cutting the initial optoelectronic circuit to remove the additional assemblies.

Assignees

• Aledia

Inventors

• Mercier Frédéric
• Salmon Yves

Classifications

• H05B45/48 Primary

  having LEDs organised in strings and incorporating parallel shunting devices · CPC title

• H05B45/44 Primary

  with an active control inside an LED matrix · CPC title

• H05B33/083 Primary

  Electricity · mapped topic