Abstract: The present invention provides an electroluminescent device comprising a substrate (1) and stacked thereon in the order of mention a first transparent electrode (2), an electroluminescent stack (3), and a second electrode (4). Furthermore, the electroluminescent device comprises at least one additional hard layer (5) that is located underneath the second electrode and/or on top of the second electrode and that has a hardness larger than the hardness of the second electrode. Methods for the production of such electroluminescent devices are likewise provided.

Abstract: The present invention provides an electroluminescent device comprising a substrate (1) and stacked thereon in the order of mention a first transparent electrode (2), an electroluminescent stack (3), and a second electrode (4). Furthermore, the electroluminescent device comprises at least one additional hard layer (5) that is located underneath the second electrode and/or on top of the second electrode and that has a hardness larger than the hardness of the second electrode. Methods for the production of such electroluminescent devices are likewise provided.

Abstract: The invention relates to an organic electroluminescent device (1) comprising a substrate (2), at least one electroluminescent layer stack on top of the substrate (2) with at least a substrate electrode (3), a counter electrode (5) and at least one organic electroluminescent layer (4) arranged between substrate electrode (2) and counter electrode (5), and a short prevention layer (6) covering the counter electrode (5) establishing a double layer (DL) with a tensile stress (TS) induced by the short prevention layer (5), and an electrically isolating layer (8) at least partly covering the short prevention layer (6), wherein the electrically isolating layer (8) is suitable to partially dissolve the organic layer (4) in the vicinity of a defect (7) within the electroluminescent layer stack and the tensile stress (TS) induced by the short prevention layer (6) is suitable to roll up (10) the double layer (DL) adjacent to the defect (7) after deposition of the electrically isolating layer (8).

Abstract: This invention relates to an organic electroluminescent device (1) produced with less effort comprising a substrate (2), a substrate electrode (3) on top of the substrate (2), an electroluminescent layer stack (4) with at least one organic light emitting layer on top of the substrate electrode (3), a counter electrode (5) at least covering the electroluminescent layer stack (4), and a short prevention layer (6) covering the counter electrode (5) establishing a double layer (DL) of counter electrode (5) and short prevention layer (6), and an electrically isolating layer at least partly on top of the short prevention layer, where a tensile stress (TS) is induced to the double layer (DL) by the short prevention layer (5) suitable to roll-up (10) the double layer (DL) after deposition of the electrically isolating layer (8) adjacent to a cut introduced at least to the double layer (DL) in an area, where the double layer (DL) is arranged on top of the electroluminescent layer stack (4) suitable to electrically dis

Abstract: The invention relates to an electroluminescent device (10) comprising a substrate and on top of the substrate a substrate electrode, a counter electrode and an electroluminescent layer stack with at least one organic electroluminescent layer (50) arranged between the substrate electrode (20) and the counter electrode (30), and an encapsulation means (90) encapsulating at least the electroluminescent layer stack, the electroluminescent device (10) comprises at least one contact means (60), for electrically contacting the counter electrode (30) to an electrical source. The invention discloses that at least one protective means (70) is arranged on the substrate electrode (20), wherein the protective means (70) is electrically non-conductive and is at least fully covering the area below the contact means (60).

Abstract: The invention discloses an electroluminescent device (10), comprising a substrate (40) and on top of the substrate (40) a substrate electrode (20), a counter electrode (30) and an electroluminescent layer stack with at least one organic electroluminescent layer (50) arranged between the substrate electrode (20) and the counter electrode (30), and an encapsulation means (90) at least encapsulates the electroluminescent layer stack, at least one divide (80,80?) dividing at least the counter electrode (30) into a plurality of electrically separated counter-electrode-segments (110,110?,110?), below the divide (80,80?) an electrically non-conductive protective means (70) is arranged on the substrate electrode (20) exceeding the divide (80, 80?) and the protective means (70) is arranged on the substrate electrode (20) with a shape suitable to prevent the emergence of a shadowing edge.

Abstract: The present invention relates to an organic electroluminescent device comprising a substrate (40) and on top of the substrate (40) a substrate electrode (20), a counter electrode (30) and an electroluminescent layer stack (50) with at least one organic electroluminescent layer arranged between the substrate electrode (20) and the counter electrode (30), an encapsulation means (90) encapsulating at least the electroluminescent layer stack (50) and at least one non-conductive spacer means (70) arranged on the substrate electrode (20) to mechanically support the encapsulation means (90) and to prevent an electrical short between the substrate electrode (20) and the counter electrode (30) during the mechanical support, wherein the spacer means (70) comprise at least one light scattering means (80) for redirecting at least a part of light (65) trapped in the substrate (40), to a method of manufacturing such an encapsulated electroluminescent device and to the use of an array, preferably a hexagonal array, of non-c

Abstract: The present invention is directed to the field of organic light emitting diode (OLED) electroluminescent devices comprising a novel hole-conducting material having a Spirobixanthen-unit.

Abstract: The invention relates to an electroluminescent device (10) comprising a layer system with a substrate electrode (20) on top of a substrate (40) and at least one stack of subsequent layers comprising a counter electrode (30) and an electroluminescent layer stack with at least one organic electroluminescent layer (50) wherein the electroluminescent layer stack is arranged between the substrate electrode (20) and the counter electrode (30), and at least one electrical shunt means (122, 122?, 122?) applied to the top of the substrate electrode (20) to improve the current distribution over the substrate electrode (20), characterized in that the electrical shunt means (122, 122?, 122?) is applied to the substrate electrode (20) via at least one electrical connecting means (120), whereas the electrical connecting means (120) and the shunt means (122, 122?, 122?) are arranged outside the stack of subsequent layers.

Abstract: This invention relates to an organic electroluminescent device (1) produced with less effort comprising a substrate (2), a substrate electrode (3) on top of the substrate (2), an electroluminescent layer stack (4) with at least one organic light emitting layer on top of the substrate electrode (3), a counter electrode (5) at least covering the electroluminescent layer stack (4), and a short prevention layer (6) covering the counter electrode (5) establishing a double layer (DL) of counter electrode (5) and short prevention layer (6), and an electrically isolating layer at least partly on top of the short prevention layer, where a tensile stress (TS) is induced to the double layer (DL) by the short prevention layer (5) suitable to roll-up (10) the double layer (DL) after deposition of the electrically isolating layer (8) adjacent to a cut introduced at least to the double layer (DL) in an area, where the double layer (DL) is arranged on top of the electroluminescent layer stack (4) suitable to electrically dis

Abstract: The invention relates to an organic electroluminescent device (1) comprising a substrate (2), at least one electroluminescent layer stack on top of the substrate (2) with at least a substrate electrode (3), a counter electrode (5) and at least one organic electroluminescent layer (4) arranged between substrate electrode (2) and counter electrode (5), and a short prevention layer (6) covering the counter electrode (5) establishing a double layer (DL) with a tensile stress (TS) induced by the short prevention layer (5), and an electrically isolating layer (8) at least partly covering the short prevention layer (6), wherein the electrically isolating layer (8) is suitable to partially dissolve the organic layer (4) in the vicinity of a defect (7) within the electroluminescent layer stack and the tensile stress (TS) induced by the short prevention layer (6) is suitable to roll up (10) the double layer (DL) adjacent to the defect (7) after deposition of the electrically isolating layer (8).

Abstract: The present invention provides an electroluminescent device comprising a substrate (1) and stacked thereon in the order of mention a first transparent electrode (2), an electroluminescent stack (3), and a second electrode (4). Furthermore, the electroluminescent device comprises at least one additional hard layer (5) that is located underneath the second electrode and/or on top of the second electrode and that has a hardness larger than the hardness of the second electrode. Methods for the production of such electroluminescent devices are likewise provided.

Abstract: An electroluminescent device (10) comprising a substrate (40) and on top of the substrate (40) a substrate electrode (20), a counter electrode (30) and an electroluminescent layer stack with at least one organic electroluminescent layer (50) arranged between the substrate electrode (20) and the counter electrode (30), characterized in that at least one image carrier body (200) is at least partially arranged on the substrate electrode (20), suitable to influence the appearance of the device (10).

Abstract: The invention relates to an electroluminescent device (10) comprising a layer system with a substrate electrode (20) on top of a substrate (40) and at least one stack of subsequent layers comprising a counter electrode (30) and an electroluminescent layer stack with at least one organic electroluminescent layer (50) wherein the electroluminescent layer stack is arranged between the substrate electrode (20) and the counter electrode (30), and at least one electrical shunt means (122, 122?, 122?) applied to the top of the substrate electrode (20) to improve the current distribution over the substrate electrode (20), characterized in that the electrical shunt means (122, 122?, 122?) is applied to the substrate electrode (20) via at least one electrical connecting means (120), whereas the electrical connecting means (120) and the shunt means (122, 122?, 122?) are arranged outside the stack of subsequent layers.

Abstract: The invention discloses an electroluminescent device (10), comprising a substrate (40) and on top of the substrate (40) a substrate electrode (20), a counter electrode (30) and an electroluminescent layer stack with at least one organic electroluminescent layer (50) arranged between the substrate electrode (20) and the counter electrode (30), and an encapsulation means (90) at least encapsulates the electroluminescent layer stack, at least one divide (80,80?) dividing at least the counter electrode (30) into a plurality of electrically separated counter-electrode-segments (110,110?,110?), below the divide (80,80?) an electrically non-conductive protective means (70) is arranged on the substrate electrode (20) exceeding the divide (80, 80?) and the protective means (70) is arranged on the substrate electrode (20) with a shape suitable to prevent the emergence of a shadowing edge.

Abstract: The invention relates to an electroluminescent device (10) comprising a substrate and on top of the substrate a substrate electrode, a counter electrode and an electroluminescent layer stack with at least one organic electroluminescent layer (50) arranged between the substrate electrode (20) and the counter electrode (30), and an encapsulation means (90) encapsulating at least the electroluminescent layer stack, the electroluminescent device (10) comprises at least one contact means (60), for electrically contacting the counter electrode (30) to an electrical source. The invention discloses that at least one protective means (70) is arranged on the substrate electrode (20), wherein the protective means (70) is electrically non-conductive and is at least fully covering the area below the contact means (60).

Abstract: The present invention is directed to the field of organic light emitting diode (OLED) electroluminescent devices comprising a novel hole-conducting material having a Spirobixanthen-unit.

Abstract: A lighting system includes at least two light-emitting diodes each emitting, in operation, visible light in a preselected wavelength range. A converter converts part of the visible light emitted by one of the diodes into visible light in a further wavelength range so as to optimize the color rendition of the lighting system. The diodes include a blue light-emitting diode and a red light-emitting diode. Further, the converter includes a luminescent material for converting a portion of the light emitted by the blue light-emitting diode into green light.