US 12,113,159 B2 · Dual emission LED chip

Abstract

Proposed is a dual emission LED chip that emits light to the upper and lower sides of a PN junction, wherein the duel emission LED chip uses the electroluminescent effect of the PN junction including a P layer and an N layer provided below the P layer, and characterized in that the dual emission LED chip emits light in the upward direction of the P layer and the downward direction of the N layer. The dual emission chip can be applied as a single chip to a field requiring dual emission, thereby enabling miniaturization of applied equipment, and increases power efficiency, thereby reducing manufacturing costs. In addition, as the dual emission LED chip can be manufactured through a batch process, a separate packaging process is not required.

Claims10

Dependent claims

A dual emission light-emitting diode (LED) chip comprising an LED chip which uses an electroluminescence effect of a P-N junction including a P-layer (P) and an N-layer (N) below the P-layer (P),

wherein light is emitted in each of an upward direction of the P-layer (P) and a downward direction of the N-layer (N),
wherein a P-direction connection unit is provided on an upper surface of the P-layer (P),
wherein an N-direction connection unit is provided on a lower surface of the N-layer (N),
wherein the P-direction connection unit provides a power connection to the P-layer (P),
wherein the N-direction connection unit provides a power connection to the N-layer (N), and
wherein the P-N junction is protected from an external environment by the P-direction connection unit and the N-direction connection unit.

3 more elements

Dependencies are inferred from the claim text.

Dual emission LED chip

Life of this patent

Dual emission LED chip

Life of this patent

Abstract

Claims10