ORGANIC ELECTROLUMINESCENT DEVICE

摘要

The invention relates to OLED devices (1) operational at high voltages providing a good life time performance, which can be manufactured with reduced effort and costs. The organic electroluminescent device (1) comprising a substrate (2) carrying multiple electroluminescent layer stacks (3) connected in series each comprising a first and a second electrode (31, 33) and an organic light emitting layer stack (32) arranged between the first and second electrode (31, 33), a cover lid (4) sealed to the substrate (2) to encapsulate the electroluminescent layer stacks (3) providing a gap (5) between the electroluminescent layer stacks (3) and an inner side (41) of the cover lid (4), where the connection in series is established by connecting the first electrode (31) of at least one of the electroluminescent layer stacks (3) involved in the serial connection via a conductive bridge (6) to the second electrode (33) of another electroluminescent layer stack (3) involved in the serial connection, preferably the adjacent electroluminescent layer stack (3), where the conductive bridge (6) comprises an conductive path (62) arranged on the inner side (41) of the cover lid (4), a first electrical connection (61) connecting the first electrode (31) to the conductive path (62) and a second electrical connection (63) connecting the conductive path (62) with the second electrode (33) of the other electroluminescent layer stack (3), preferably the adjacent electroluminescent layer stack (3). The invention further relates to a method providing the organic electroluminescent device (1) with process steps leading to a reduced effort and costs.