Transparent light emitting device with controlled emission

1. A light emitting device comprising:

a transparent substrate;

a partially transparent an anode layer or anode layer assembly arranged on said transparent substrate;

a light emitting layer arranged on said anode layer; and

a transparent cathode layer arranged on said light emitting layer; wherein

said anode layer or anode layer assembly comprises a first surface facing said transparent substrate and a second surface facing said light emitting layer and is positioned opposite to said first surface;

said first surface comprises a transparent conductive material;

said second surface comprises a metal layer having first and second domains which metal layer comprises at least one metal or alloy which is in non-oxidized form in said first domains and oxidized in said second domains;

said first domains are conductive and non-transparent;

said second domains are transparent and electrically isolating; and

said first domains are in direct contact with said light emitting layer and are arranged to allow electrical contact between said first surface and said light emitting layer.

2. The light emitting device according to claim 1 , herein said first surface comprises a conductive polymer.

3. The light emitting device according to claim 1 , wherein said first surface comprises at least one conducting oxide.

4. The light emitting device according to claim 1 , wherein said anode layer comprises a metal or alloy layer which is partly in oxidized form, wherein said first surface and said first domains are in non-oxidized form, and said second domains are in oxidized form.

5. The light emitting device according to claim 1 , further comprising:

an additional light emitting layer arranged on said cathode; and

an additional partly transparent anode layer or anode layer assembly arranged on said additional light emitting layer,

wherein

said anode layer or anode layer assembly comprises a first surface facing said additional light emitting layer and a second surface positioned opposite to said first surface;

said first surface comprises first and second domains;

said first domains are conductive and non-transparent;

said second domains are transparent and electrically isolating;

said second surface comprises a transparent conductive material, and wherein

said first domains are in direct contact with said light emitting layer and are arranged to allow electrical contact between said second surface and said light emitting layer.

6. An OLED comprising a light emitting device according to claim 1 .

7. A method for manufacturing a light emitting device, comprising:

providing a transparent substrate;

providing a partly transparent anode layer or anode layer assembly on said transparent substrate, wherein the anode layer or anode layer assembly has a first transparent and conducting surface facing said transparent substrate, wherein said anode layer or assembly is provided with first domains of non-transparent conductive material and with second domains of transparent electrically isolating material,

providing a light emitting layer on said anode layer; and

providing a transparent cathode layer on said light emitting layer,

wherein said first domains are in direct contact with said light emitting layer and are arranged to allow electrical contact between said first surface and said light emitting layer, wherein said anode layer is provided either by

applying a first sub-layer of a transparent conductive material;

applying a second sub-layer of a metal or alloy; and

selectively oxidizing said second sub-layer, thereby forming said first and second domains,

or by

applying a layer of a metal or alloy; and

selectively oxidizing the surface of said layer to a predetermined depth, thereby forming said first domains of conductive material and said second domains of electrically isolating material.

8. The method according to claim 7 , wherein said selective oxidation is performed by

partially covering said second sub-layer; and

oxidizing uncovered domains of said second sub-layer.

9. The method according to claim 7 , wherein applying the anode layer comprises using electroplating of a metal.