Organic light emitting diode lighting equipment
View Patent ↗An organic light emitting diode lighting equipment includes a transparent substrate main body, a first electrode formed on the substrate main body, a subsidiary electrode formed on the first electrode to partition the first electrode at a predetermined distance, an organic emissive layer formed on the first electrode, and a second electrode formed on the organic emissive layer. The subsidiary electrode has an inclined lateral side facing toward the organic emissive layer.
1. An organic light emitting diode lighting equipment, comprising:
a transparent substrate main body;
a first electrode formed on the substrate main body;
a subsidiary electrode formed on the first electrode to partition the first electrode at a predetermined distance;
an organic emissive layer formed on the first electrode; and
a second electrode formed on the organic emissive layer, with
the subsidiary electrode having an inclined lateral side facing toward the organic emissive layer,
light emitted from the organic emissive layer being partially firstly reflected against the lateral side of the subsidiary electrode and secondly reflected against the second electrode, while the reflected light passes through the first electrode and is discharged to an exterior of the organic light emitting diode lighting equipment.
2. The organic light emitting diode lighting equipment of claim 1 , wherein the subsidiary electrode is formed from a reflective material.
3. The organic light emitting diode lighting equipment of claim 2 , wherein the first electrode is formed from a transparent material, and the second electrode is formed from a reflective material.
4. The organic light emitting diode lighting equipment of claim 3 , wherein the subsidiary electrode is electrically connected to the first electrode, and is formed from a material having a lower electrical resistivity compared to the first electrode.
5. The organic light emitting diode lighting equipment of claim 3 , wherein the subsidiary electrode has a shape selected from the group consisting of a mesh shape and a stripe shape.
6. The organic light emitting diode lighting equipment of claim 3 , wherein the subsidiary electrode has a shape selected from a group consisting of various geometrical figures including a star, a triangle, and a hexagon.
7. The organic light emitting diode lighting equipment of claim 3 , wherein the subsidiary electrode has a shape selected from a group consisting of numbers, symbols, and letters.
8. The organic light emitting diode lighting equipment of claim 1 , wherein the first electrode, the organic emissive layer, and the second electrode are sequentially deposited within the area defined by the subsidiary electrode.
9. The organic light emitting diode lighting equipment of claim 1 , further comprising an insulating layer covering the subsidiary electrode to electrically insulate the subsidiary electrode from the second electrode.
10. The organic light emitting diode lighting equipment of claim 1 , wherein the subsidiary electrode has a bottom side facing toward the first electrode and a top side facing toward the second electrode such that the bottom side is larger in width than the top side.
11. An organic light emitting diode lighting equipment, comprising:
a transparent substrate;
a transparent first electrode formed on the transparent substrate;
an organic emissive layer formed on the transparent first electrode;
a reflective subsidiary electrode protruding from the transparent first electrode and formed in a predetermined pattern, and the reflective subsidiary electrode comprising a protrusion having inclined lateral sides which face toward the organic emissive layer; and
a reflective second electrode formed on the organic emissive layer and electrically insulated from both of the transparent first electrode and the reflective subsidiary electrode,
light emitted from the organic emissive layer being partially firstly reflected against the lateral sides of the reflective subsidiary electrode and secondly reflected against the reflective second electrode, while the reflected light passes through the transparent first electrode and is wholly discharged to an exterior of the organic light emitting diode lighting equipment.
12. The organic light emitting diode lighting equipment of claim 11 , wherein the reflective subsidiary electrode has a bottom side facing toward the transparent first electrode and a top side facing toward the reflective second electrode such that the bottom side is different in width compared to the top side.
13. The organic light emitting diode lighting equipment of claim 12 , wherein the reflective subsidiary electrode has a bottom side facing toward the transparent first electrode and a top side facing toward the reflective second electrode such that the bottom side is larger in width compared to the top side.