Organic light emitting diode lighting apparatus
View Patent ↗An organic light emitting diode lighting apparatus is disclosed. The apparatus includes a plurality of electrode lines that feed current to or from a plurality of light emitting diodes, and a flexible printed circuit board (FPCB) that has a plurality of connection lines electrically connected to the plurality of electrode lines through the plurality of contact holes. In some embodiments, the FPCB has a fuse for each of the electrode lines.
1. An organic light emitting diode lighting apparatus, comprising:
a substrate main body including a light emitting area and a pad area;
a plurality of electrode lines that are formed on the substrate main body;
at least one organic emission layer that is formed on the plurality of electrode lines in the light emitting area;
a common electrode that is formed on the organic emission layer;
a pad insulation layer covering the plurality of electrode lines, wherein the pad insulation layer has a plurality of contact holes that expose a part of each of the plurality of electrode lines in the pad area; and
a flexible printed circuit board (FPCB) that includes a plurality of connection lines electrically connected to the plurality of electrode lines through the plurality of contact holes.
2. The organic light emitting diode lighting apparatus of claim 1 , wherein the plurality of electrode lines are divided into a plurality of electrode line groups.
3. The organic light emitting diode lighting apparatus of claim 2 , wherein contact holes that expose the electrode lines belonging to the same electrode line group are formed at substantially the same distance from the light emitting area.
4. The organic light emitting diode lighting apparatus of claim 2 , wherein contact holes that expose the electrode lines belonging to different electrode line groups are formed at different distances from the light emitting area.
5. The organic light emitting diode lighting apparatus of claim 2 , wherein the organic emission layer emits at least one color of light.
6. The organic light emitting diode lighting apparatus of claim 5 , wherein the organic emission layer formed on the electrode lines belonging to different electrode line groups emits different colors of light.
7. The organic light emitting diode lighting apparatus of claim 6 , wherein the organic emission layer emits red-based, green-based, and blue-based light.
8. The organic light emitting diode lighting apparatus of claim 6 , wherein the organic emission layer emits bluish-green-based light and orange-based light.
9. The organic light emitting diode lighting apparatus of claim 2 , wherein the plurality of connection lines are formed in a direction intersecting the plurality of electrode lines.
10. The organic light emitting diode lighting apparatus of claim 9 , wherein one connection line of the plurality of connection lines is connected to electrode lines that belong to one of the plurality of electrode line groups.
11. The organic light emitting diode lighting apparatus of claim 9 , wherein the plurality of connection lines are formed of a metal film and have a thickness in the range of about 0.5 μm to about 50 μm.
12. The organic light emitting diode lighting apparatus of claim 11 , wherein the plurality of electrode lines are formed through a deposition process, and the plurality of connection lines are formed through a plating process.
13. The organic light emitting diode lighting apparatus of claim 1 , further comprising:
a sealing member that covers the light emitting area on the substrate main body.
14. The organic light emitting diode lighting apparatus of claim 1 , wherein each of the plurality of connection units includes a line unit, a connection unit spaced from the line unit, and a fuse unit that connects the line unit with the connection unit.
15. The organic light emitting diode lighting apparatus of claim 14 , wherein the connection unit is electrically connected to one of the plurality of electrode lines through one of the plurality of contact holes.
16. The organic light emitting diode lighting apparatus of claim 15 , wherein the fuse unit has a line width in the range of about 50 μm to about 100 μm.
17. The organic light emitting diode lighting apparatus of claim 15 , wherein two or more fuse units are connected to one connection unit.
18. The organic light emitting diode lighting apparatus of claim 15 , wherein the connection unit is formed in a polygonal shape.
19. The organic light emitting diode lighting apparatus of claim 15 , wherein the connection unit is formed in a circular or oval shape.