OLED lighting device with tag element
The invention relates to an organic light emitting diode (OLED) device ( 200 ) comprising a tag element ( 201 ) that encodes operating information about the device, for example its maximal driving current, such that this information can be read out wirelessly and/or electrically by wire but approximately without Ohmic losses. The invention further comprises a socket ( 600 ) with a read-out unit ( 601 ) for reading out the operating information from such a tag element ( 201 ). The tag element may for instance comprise a tag electrode ( 201 ) that can capacitively couple to a counter-electrode ( 601 ) in the socket.
1. An OLED device having an electrode area and comprising a tag element that encodes operating information about the device, the tag element comprising a pattern that constitutes at least a portion of the electrode area, wherein said information is at least one of readable wirelessly or readable electrically by wire.
2. The OLED device according to claim 1 , wherein the pattern is optically detectable.
3. The OLED device according to claim 2 , wherein the pattern is a barcode.
4. The OLED device according to claim 1 , wherein the tag element comprises a tag electrode on the surface of the device or below a dielectric layer.
5. The OLED device according to claim 4 , wherein the operating information is encoded in an effective area of the tag electrode.
6. The OLED device according to claim 1 , wherein the tag element is disposed on the surface of the device.
7. The OLED according to claim 1 , wherein the tag element is covered by an encapsulation.
8. The OLED device according to claim 1 , wherein the operating information comprises a plurality of driving parameters of the OLED device, including at least one of a nominal driving current, a minimal driving current, a maximal driving current, a driving power, a driving voltage, a color-point of the OLED device, a color temperature of the OLED device, a white point of the OLED device, or a parameter related to dimming of the OLED device.
9. A socket for an OLED device according to claim 1 , comprising a read-out unit for reading out operating information from the OLED device.
10. The socket according to claim 9 , further comprising an optical sensor for optically detecting the pattern carried by a tag element of OLED device when the latter is mounted to the socket.
11. The socket according to claim 9 , further comprising a read-out electrode that capacitively couples to the electrode of the OLED device when the latter is mounted to the socket.
12. The socket according to claim 9 , further comprising a control circuit for driving the OLED device mounted to the socket according to operating information read out from said OLED device.
13. A set of OLED devices according to claim 1 , wherein:
each OLED device comprises a tag element that encodes operating information about the device, wherein said information is at least one of readable wirelessly or readable electrically by wire; and
different operating information is encoded in the tag elements such that the OLED devices have different light output behavior when being operated according to said operating information.