Novaled GmbH

The present invention relates to a display device comprising a plurality of OLED pixels comprising at least two OLED pixels, the OLED pixels comprising an anode, a cathode, and a stack of organic layers, wherein the stack of organic layers is arranged between and in contact with the cathode and the anode, and comprises a first electron transport layer, a first hole transport layer, and a first light emitting layer provided between the first hole transport layer and the first electron transport layer, and a driving circuit configured to separately driving the pixels of the plurality of OLED pixels, wherein, for the plurality of OLED pixels, the first hole transport layer is provided in the stack of organic layers as a common hole transport layer shared by the plurality of OLED pixels, and the first hole transport layer comprises (i) at least one first hole transport matrix compound consisting of covalently bound atoms and (ii) at least one electrical p-dopant selected from metal salts and from electrically neutral metal complexes comprising a metal cation and at least one anion and/or at least one anionic ligand consisting of at least 4 covalently bound atoms, wherein the metal cation of the electrical p-dopant is selected from alkali metals; alkaline earth metals, Pb, Mn, Fe, Co, Ni, Zn, Cd; rare earth metals in oxidation state (II) or (III); Al, Ga, In; and from Sn, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W in oxidation state (IV) or less, a method for preparing the display device and a chemical compound for use therein.

The present invention is related to a solar cell comprising a first electrode; a second electrode; and a stack of layers provided between the first electrode and the second electrode; wherein the stack of layers comprises one light absorbing layer provided with a perovskite crystal structure; and at least one dopant layer, wherein the dopant layer consists of one or more n-dopant material(s); or one or more p-dopant material(s).

The present invention relates to an organic electroluminescent device comprising a compound of Formula (I): and an organic electronic device comprising the organic electroluminescent device.

The present invention relates to an organic electronic device comprising an anode layer, a cathode layer, at least one emission layer (EML) and at least one hole injection layer (HIL), wherein the hole injection layer is arranged between the anode layer and the at least one emission layer.

The present invention relates to an electroluminescent device comprising an electron injection layer comprising a compound of formula (I) and a metal and a display device comprising the organic electroluminescent device.

The present invention relates to a compound and their use in organic electronic devices, an organic semiconductor layer comprising the compound, an organic electronic device comprising the organic semi-conductor layer, and a display device comprising the organic electronic device.

The present invention is directed to an electroluminescent device comprising an anode layer, a cathode layer, a first emission layer, a hole injection layer and a first hole transport layer that comprises a compound containing a metal.

The present invention relates to a compound of Formula (I): an organic semiconducting layer comprising the same, an organic electronic device comprising the organic semiconducting layer and a display device or a lighting device comprising the organic electronic device.

The invention relates to Organic light emitting diode comprising at least one emission layer, an electron injection layer and at least one cathode electrode, wherein: the electron injection layer comprises an organic phosphine compound, wherein the electron injection layer is free of a metal, metal salt, metal complex and metal organic compound; the cathode electrode comprises at least a first cathode electrode layer, wherein the first cathode electrode layer comprises a first zero-valent metal selected from the group comprising alkali metal, alkaline earth metal, rare earth metal and/or a group 3 transition metal; and the electron injection layer is arranged in direct contact to the first cathode electrode layer.

The present invention relates to a compound, an organic semiconducting material comprising the same, an organic electronic device comprising the same and a display device comprising the same.