US 9,070,573 B2Granted

Light-emitting systems

AssigneeEpistar Corporation

InventorsWen-Yung Yeh, Yu-Chen Yu, Hsi-Hsuan Yen, Jui-Ying Lin

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Abstract

A light-emitting system comprises: a first power input terminal and a second power input terminal; an insulating substrate; a first light-emitting-diode string formed on the insulating substrate comprising at least three light-emitting diodes placed sequentially in a first direction to allow a current flow through the at least three light-emitting diodes of the first light-emitting-diode string generally in the first direction; a second light-emitting-diode string formed on the insulating substrate comprising at least three light-emitting diodes placed sequentially in a second direction to allow a current flow through the at least three light-emitting diodes of the second light-emitting-diode string generally in the second direction; a third light-emitting-diode string comprising at least three light-emitting diodes placed sequentially in a third direction to allow a current flow through the at least three light-emitting diodes of the third light-emitting-diode string generally in the third direction.

Claims14

Dependent claims

A light-emitting system comprising:

a first power input terminal and a second power input terminal for receiving an external power input to the light-emitting system;
an insulating substrate;
a first light-emitting-diode string formed on the insulating substrate comprising at least three light-emitting diodes placed sequentially in a first direction to allow a current flow through the at least three light-emitting diodes of the first light-emitting-diode string generally in the first direction;
a second light-emitting-diode string formed on the insulating substrate comprising at least three light-emitting diodes placed sequentially in a second direction to allow a current flow through the at least three light-emitting diodes of the second light-emitting-diode string generally in the second direction;
and
a third light-emitting-diode string comprising at least three light-emitting diodes placed sequentially in a third direction to allow a current flow through the at least three light-emitting diodes of the third light-emitting-diode string generally in the third direction;
wherein the first light-emitting-diode string, the second light-emitting-diode string and the third light-emitting-diode string are serially coupled between the first power input terminal and the second power input terminal, and the first direction is substantially perpendicular to the second direction, wherein the light-emitting diodes in the same string are separated from one another and electrically connected to one another through a plurality of conductors, and the second light-emitting-diode string and the third light-emitting-diode string are arranged in a non-parallel manner.

4 more elements

A light-emitting system comprising:

an insulating substrate;
a first power input terminal and a second power input terminal for receiving an external power input to the light-emitting system formed on the insulating substrate;
a first light-emitting-diode string formed on the insulating substrate comprising at least three light-emitting diodes arranged in a first direction to allow a current flow through the at least three light-emitting diodes of the first light-emitting-diode string generally in the first direction;
a second light-emitting-diode string formed on the insulating substrate comprising at least three light-emitting diodes arranged in a second direction to allow a current flow through the at least three light-emitting diodes of the second light-emitting-diode string generally in the second direction;
and
a third light-emitting-diode string comprising at least three light-emitting diodes arranged in a third direction to allow a current flow through the at least three light-emitting diodes of the first light-emitting-diode string generally in the third direction,
wherein the first light-emitting-diode string, the second light-emitting-diode string and the third light-emitting-diode string are serially coupled between the first power input terminal and the second power input terminal, and the first light-emitting-diode string and the second light-emitting-diode string are arranged in non-parallel directions, and the second light-emitting-diode string and the third light-emitting-diode string are arranged in non-parallel directions, wherein the light-emitting diodes in the same string are separated from one another and electrically connected to one another through a plurality of conductors.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/915,420Filed 29 Oct 2010 · continuation
Priority: 7 Oct 2005
Published: US 2011/0038157 A117 Feb 2011
Granted: 30 Jun 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H10H 29/10
Integrated devices, or assemblies of multiple devices, comprising at least one light-emitting semiconductor element covered by group H10H20/00:…
H10H 20/83
Constructional details: electrodes
H10H 20/857
Packages: interconnections, e.g. lead-frames, bond wires or solder balls
H10W 90/00
Package configurations

Family

Application11/245,255Parent of this continuation-in-part · filed 7 Oct 2005
Application11/609,538Parent of this continuation-in-part · filed 12 Dec 2006
Application12/246,786Parent of this continuation · filed 7 Oct 2008
US 2011/0038157 A1Pre-grant publication · published 17 Feb 2011
US 8,704,241 B2Parent of this continuation
US 7,474,681 B2Parent of this continuation-in-part
Application12/246,786Parent of this continuation-in-part
US 8,487,321 B2Parent of this continuation-in-part
US 2006/0256826 A1Published application
US 2007/0131942 A1Published application
US 2009/0096386 A1Published application
US 9,070,573 B2This patent

From the US filing history. Foreign family members aren’t listed.