ORGANIC ELECTRO-OPTICAL DEVICE, LIGHT SOURCE, DISPLAY DEVICE AND SOLAR CELL

摘要

The invention relates to an organic electro-optical device (10), to a light source, a display device and a solar cell. The organic electro-optical device comprises an organic electro-optical compound (40) sandwiched between an anode layer (30) and a cathode layer (50). The cathode layer comprises an electron-injecting metal being a metal having a relatively low work-function for injecting electrons into the organic electro-optical compound. The cathode layer is sealed from moisture via a sealing layer (60) deposited on the cathode layer. The sealing layer comprises a getter layer (70) for consuming water and an organic planarization layer (80) for encapsulating contamination particles (100) in or on the cathode layer. The getter layer is sandwiched between the cathode layer and the organic planarization layer. The sealing layer is sealed using an inorganic barrier layer (90). The effect of the sealing layer according to the invention is that it significantly increases the life-time of the organic electro-optical device.