The present disclosure provides a light-emitting diode, including a first electrode, a light-emitting functional layer and a second electrode which are stacked, the first electrode is a transparent electrode, the second electrode includes a metal electrode layer and a semiconductor auxiliary layer, the metal electrode layer is attached to the light-emitting functional layer, the semiconductor auxiliary layer is located on a surface of the metal electrode layer away from the light-emitting functional layer. The metal electrode layer is made of a magnesium-silver alloy, a thickness of the metal electrode layer is between 3 nm and 5 nm, and the semiconductor auxiliary layer is made of IZO, a thickness of the semiconductor auxiliary layer is between 100 nm and 130 nm. The present disclosure further provides a light emitting device and a method of manufacturing a light emitting diode. The light-emitting diode has high color rendering index and low power consumption.

Provided are a method of preparing a graphene-based thin-film laminate and the graphene-based thin-film laminate prepared by using the method. The method may include repeating following operations 60 times or less, the cycle including: (a) to (d) processes described above, a graphene-based thin-film laminate prepared using the same, and an electrode and electronic device including the graphene-based thin-film laminate.

An organic electroluminescence element in an embodiment according to the present invention includes a first electrode, a third electrode including a region overlapping the first electrode, a first insulating layer between the first electrode and the third electrode, a second insulating layer between the first insulating layer and the third electrode, an electron transfer layer between the first insulating layer and the third electrode, a light emitting layer, containing an organic electroluminescence material, between the electron transfer layer and the third electrode, and a second electrode located between the first insulating layer and the second insulating layer and electrically connected with the electron transfer layer. The organic electroluminescence element includes an overlap region where the third electrode, the light emitting layer, the electron transfer layer, the first insulating layer and the first electrode overlap each other in an opening of the second insulating layer.

A multi-functional active matrix display comprises a transparent front sheet, a semi-transparent layer of light emissive devices adjacent the rear side of the front sheet and forming a matrix of display pixels, and a solar cell layer located behind the light emissive devices for converting both ambient light and internal light7 from the light emissive devices into electrical energy, the solar cell layer including an array of electrodes on the front surface of the solar cell layer for use in detecting the location of a change in the amount of light impinging on a portion of the front surface of the solar cell layer.

The present invention relates to the doping of organic semiconductors and processes for producing layers of p-doped organic semiconductors. Disclosed is a process for p-doping organic semiconductors comprising treating the organic semiconductor with an oxidized salt of the organic semiconductor. A process for producing a layer of a p-doped organic semiconductor comprising producing a p-doped organic semiconductor by treating the organic semiconductor with an oxidized salt of the organic semiconductor; disposing a composition comprising a solvent and the p-doped organic semiconductor on a substrate; and removing the solvent is also described. Also disclosed is a process for producing a layer of a p-doped organic semiconductor comprising: disposing a composition comprising a solvent, the organic semiconductor and a protic ionic liquid on a substrate; and removing the solvent. A process for producing a semiconductor device comprising a process for doping an organic semiconductor according to the invention is also described. Finally, a high purity p-dopant composition is described.

An organic light-emitting device includes a substrate, a first electrode, an organic light-emitting layer, an organic functional layer, a translucent electrically-conductive film, and a second electrode. The first electrode is disposed over the substrate. The organic light-emitting layer is disposed over the first electrode. The organic functional layer is disposed over the organic light-emitting layer. The translucent electrically-conductive film is disposed on the organic functional layer and is in contact with the organic functional layer. The second electrode is composed of a metal material or an alloy material and is disposed over the translucent electrically-conductive film. Furthermore, in the translucent electrically-conductive film, the film thickness is equal to or larger than 60 nm and the residual stress is in a range of −400 MPa to +400 MPa.

The present disclosure provides an OLED display substrate including a substrate, a pixel defining layer on the substrate, for defining a plurality of sub-pixel regions having different colors; and cavity length adjusting layers in the sub-pixel regions, wherein the cavity length adjusting layers comprise a conductive ink, and the cavity length adjusting layers have different thicknesses in the sub-pixel regions having different colors.

A display device in an embodiment according to the present invention includes a first electrode, an insulation layer including an opening region exposing an inner side region of the first electrode, and a cover region covering regions apart from an inner side region of the first electrode, an end part of the cover region overlapping with a periphery edge part of the first electrode, an organic layer above the first electrode, a second electrode arranged opposite the first electrode and corresponding to the opening region of the insulation layer above the organic layer, and a conductive layer above the cover region of the insulation layer and at least a part of the second electrode and the conductive layer are in contact.

The invention relates to a light extraction substrate having a light extraction layer. The light extraction layer includes boron, boroate, and/or borosilicate as well as nanoparticles.

A flexible organic light-emitting display device and a method of manufacturing the flexible organic light-emitting display device are provided. The flexible organic light-emitting display device comprises a lower flexible substrate assembly and an upper flexible substrate assembly that are bonded by a bonding layer. The lower flexible substrate assembly includes a first flexible substrate, a thin film transistor formed on the first flexible substrate, a white organic light-emitting element formed on the thin film transistor, and an encapsulation layer formed on the white organic light-emitting element. The upper flexible substrate assembly comprises a second flexible substrate, an interlayer and a touch sensing unit formed on the interlayer layer. The interlayer may be at least one of a color filter layer, a transparent resin layer, an insulating film layer and a second flexible substrate.