Light emitting diode package with coaxial leads
View Patent ↗The leads of a light emitting diode are made coaxial. The inner lead protrudes lower than the outer lead. The package is inserted into a spongy display panel for power supply. The display panel has three layers: a lower conducting layer for contacting said inner lead and a top conducting layer for contacting said outer layer, and an insulating layer between the top and the bottom layer. For LED with a bottom electrode and a top electrode, the LED can be mounted on the planar tops of the inner lead and the top electrode wire bonded to the outer lead, or the LED can be mounted on the side surface of the inner lead and the top electrode wire bonded to the outer lead. For LED with two bottom electrode, the LED electrodes can straddle over the planar tops of the inner lead and the outer lead, or the LED electrodes can straddle over the telescopic side surfaces of the two leads.
1. A light emitting diode (LED) package, comprising:
a light emitting diode having a top electrode and a bottom electrode,
two coaxial leads having an outer lead and an inner lead protruding below said outer lead, and
an insulating layer separating said two coaxial leads,
wherein the top of inner lead and the top of the outer lead are coplanar, and wherein said LED is mounted on said top of the inner lead and the top electrode of the LED is wire bonded to said outer lead.
2. A light emitting diode (LED) package, comprising:
a light emitting diode having a first electrode and a second electrode;
two coaxial leads having an outer lead connected to said first electrode and an inner leads connected to said second electrode and protruding below said outer lead;
an insulating layer separating said two coaxial leads; and
a display panel having a soft conducting top layer for contacting said outer lead to a first power source, a soft conducting bottom layer for contacting said inner lead to a second power source, and an insulating layer separating said top layer and said bottom layer.
3. A light emitting diode (LED) package comprising:
a light emitting diode having a first electrode and a second electrode;
two coaxial leads having an outer lead connected to said first electrode, and an inner lead connected to said second electrode and protruding below said outer lead; and
an insulating layer separating said two coaxial leads,
wherein said LED has two soldered bottom electrodes.
4. The LED package as described in claim 3 , wherein the top of said inner lead and the top of said outer lead are coplanar, and the two soldered bottom electrodes straddle over said top of inner lead and said top of said outer lead.
5. The LED package as described in claim 3 , wherein said inner lead protrudes over the top of said outer lead, and the two soldered bottom electrodes straddle over the side surfaces of said outer lead and said inner lead.