Patent Number: 8,816,335

Title: Method for creating serially-connected OLED devices

Abstract: By the invention it is proposed a method of preparing a serial connection of OLED-devices, comprising the steps of providing a carrier substrate; depositing a first electrode material layer on said carrier substrate; depositing a layer of an organic optoelectronic active material on said first electrode material layer; depositing a second electrode material layer on said organic optoelectronic active material layer; ablating at least the second electrode material layer and the organic optoelectronic active material layer at least in selected areas to build a trench forming separated OLED-devices on the carrier surface; electrically interconnecting neighboring OLED-devices by connecting the anode of a first OLED-device to the cathode of a neighboring second OLED-device, wherein in the steps of depositing the organic optoelectronic active material layer and the cathode layer, the carrier substrate surface is covered over its entire functional area with said layers, and wherein the electrical interconnection of the neighboring OLED-devices is performed by at least partially filling the trenches built in the ablating step with an electrical conductive material. Furthermore, an illuminant is provided comprising serial connected OLED-devices.

Inventors: Schwab; Holger (Aachen, DE)

Assignee: Koninklijke Philips N.V.

International Classification: H01L 35/24 (20060101)

Expiration Date: 8/26/12018