Methods and systems for emitting light from electrically biased graphene are provided. An exemplary method of generating a light emission from graphene includes suspending a graphene membrane using at least one mechanical clamp and providing a current to the graphene membrane to establish a source-drain bias voltage along the graphene membrane.

An organic light emitting display panel and apparatus, and a manufacturing method therefor are provided. The organic light emitting display panel includes a plurality of light emitting units, the light emitting unit includes an anode, a first auxiliary functional structure, a light emitting structure and a cathode, the anode, the first auxiliary functional structure, the light emitting structure and the cathode are successively laminated, and the first auxiliary functional structures of different light emitting units are arranged separate from one another, the anodes of different light emitting units are arranged separate from one another, and the light emitting structures of different light emitting units are arranged separate from one another.

The invention relates to new conjugated semiconducting polymers containing thermally cleavable side groups. The thermally cleavable side groups are selected from among carbonate groups and carbamate groups, By thermally cleaving side groups, the solubility or the polymers can he reduced in a targeted manner. The polymers are used as semiconductors in organic electronic (OE) devices, especially in organic photovoltaic (OPV) devices, organic photodetectors (OPDs), organic light emitling diodes (OLEDs), and organic field effect transistors (OFETs).

The invention relates to improved Organic Light Emitting Transistor (OLET) pixel architecture for OLET based displays.

An organic light-emitting diode display is disclosed. In one aspect, the display includes a substrate, a scan line formed over the substrate and configured to provide a scan signal, and a data line crossing the scan line and configured to provide a data voltage. A driving voltage line crosses the scan line and is configured to provide a driving voltage. The display also includes a switching transistor electrically connected to the scan line and the data line and a driving transistor electrically connected to the switching transistor and including a driving gate electrode, a driving source electrode, and a driving drain electrode. The display further includes a storage capacitor including a first storage electrode formed over the driving transistor and the driving gate electrode as a second storage electrode. The second storage electrode overlaps the first storage electrode in the depth dimension and extends from the driving voltage line.

The present teachings relate to an organic electroluminescent transistor with improved light-emission characteristics. More specifically, the present organic electroluminescent transistor has an emissive ambipolar channel including at least one layer of an n-type semiconductor material, at least one layer of a p-type semiconductor material, and at least one layer of an emissive material arranged between the layers of the p-type and n-type semiconductor materials, with the n-type semiconductor material comprising an electron-transporting compound represented by formula (N-1):

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where X, Ar, Ar′, R.sup.1, R.sup.2, m and m′ are as defined herein.

The present teachings relate to an organic electroluminescent transistor with improved light-emission characteristics. More specifically, the present organic electroluminescent transistor has an emissive ambipolar channel including at least one layer of an n-type semiconductor material, at least one layer of a p-type semiconductor material, and at least one layer of an emissive material arranged between the layers of the p-type and n-type semiconductor materials, where the multilayer emissive ambipolar channel includes, among various layers, a layer of a p-type semiconductor material comprising a benzothieno-benzothiophene compound, and/or a layer of an emissive material comprising a blend material that includes an organic carbazole derivative as the host matrix compound and an iridium complex as the guest emitter.

A light-emitting device includes a carrier, an organic layer sequence arranged on the carrier and having at least one emitter layer containing a light-emitting material configured to emit light of a first wavelength range, a first electrode and a second electrode, and a multiplicity of nanostructures, wherein the nanostructures have a refractive index smaller than a refractive index of the light-emitting material of the emitter layer and at least some of the nanostructures project into the emitter layer or pierce through the emitter layer.

A housing for an optical component is provided in various embodiments. The housing has a leadframe section and a mold compound. The leadframe section is formed from an electrically conductive material and has a first side and a second side facing away from the first side. On the first side, the leadframe section has at least one first receiving region for receiving the optical component and/or at least one contact region for electrically contacting the optical component. The leadframe section has at least one trench which is formed in the leadframe section on the first side thereof alongside the receiving region and/or the contact region. The leadframe section is embedded in the mold compound. The mold compound has at least one receiving recess in which the first receiving region and/or the contact region and the trench are arranged.

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.