Light emitting device having first and second electrodes

Patent metadata

Field	Value
Publication number	US-10607968-B2
Application number	US-201815927678-A
Country	US
Kind code	B2
Filing date	Mar 21, 2018
Priority date	Sep 22, 2017
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

A light emitting device includes: a substrate; a first electrode and a second electrode on the substrate and spaced apart from each other; a light emitting diode between the first electrode and the second electrode and connected to the first and second electrodes; a first contact on the first electrode; and a second contact on the second electrode. The first contact contacts the first electrode and a first portion of the light emitting diode, and the second contact contacts the second electrode and a second portion of the light emitting diode.

First claim

What is claimed is:

1. A light emitting device comprising:
a substrate;
a first electrode and a second electrode on the substrate and spaced apart from each other, the second electrode having a lower surface facing the substrate, an upper surface opposite the lower surface, and a side surface between the lower surface and the upper surface;
a light emitting diode between the first electrode and the second electrode, the light emitting diode being electrically connected to the first electrode and the second electrode;
a first contact contacting the first electrode and a first portion of the light emitting diode; and
a second contact contacting a second portion of the light emitting diode and directly contacting the side surface of the second electrode,
wherein the first electrode and the second electrode do not contact the light emitting diode, and
wherein the side surface of the second electrode faces the light emitting diode.

2. The light emitting device of claim 1 , further comprising an insulation pattern between the first contact and the second contact.

3. The light emitting device of claim 2 , wherein the insulation pattern contacts the first contact, the second contact, and the light emitting diode.

4. The light emitting device of claim 3 , wherein the insulation pattern is a single layer.

5. The light emitting device of claim 2 , wherein the insulation pattern completely covers the first electrode.

6. The light emitting device of claim 2 , wherein the insulation pattern partially covers the first electrode.

7. The light emitting device of claim 1 , wherein the first contact does not extend beyond the first electrode and the light emitting diode.

8. The light emitting device of claim 1 , wherein the light emitting diode comprises a plurality of light emitting diodes, and the plurality of light emitting diodes are electrically connected to the first electrode and the second electrode.

9. The light emitting device of claim 8 , wherein the plurality of light emitting diodes comprises first light emitting diodes.

10. The light emitting device of claim 8 , wherein the plurality of light emitting diodes comprises second light emitting diodes, and
wherein one end and another end of each of the second light emitting diodes contact the substrate.

11. The light emitting device of claim 1 , further comprising a first protrusion between the substrate and the second electrode.

12. The light emitting device of claim 11 , further comprising a second protrusion between the substrate and the first electrode.

13. A light emitting device comprising:
a substrate;
a first electrode and a second electrode on the substrate and spaced apart from each other;
a light emitting diode between the first electrode and the second electrode, the light emitting diode being electrically connected to the first electrode and the second electrode;
a first contact contacting the first electrode and a first portion of the light emitting diode;
a second contact contacting the second electrode and a second portion of the light emitting diode; and
an insulating pattern between the first contact and the second contact,
wherein a portion of the second contact is on an upper surface of insulation pattern with respect to the substrate, and the first contact is under a lower surface of the insulation pattern, and
wherein the first electrode and the second electrode do not contact the light emitting diode.

Assignees

• Samsung Display Co Ltd

Inventors

• Woo Yeoung Keol
• Bae Chul Min
• Ha Heon Sik

Classifications

• H01L33/62

  Electricity · mapped topic

• H01L24/96

  Electricity · mapped topic

• H01L2933/0066

  Electricity · mapped topic

• H01L2224/95101

  Electricity · mapped topic

• H01L2224/95133

  Electricity · mapped topic