OLED panels and techniques for fabricating OLED panels are provided. Multiple cuts may be made in an OLED panel to define a desired shape, as well as the location and shape of external electrical contacts. The panel may be encapsulated before or after being cut to a desired shape, allowing for greater flexibility and efficiency during manufacture.

An electronic device may include a substrate, a plurality of first electrodes located on a first surface of the substrate, a plurality of organic layers located on top of the first electrodes, and a second electrode, located on top of the organic layers, that spreads so as to overlap the plurality of first electrodes in planar view. The second electrode may include a plurality of unit regions demarcated based on the plurality of first electrodes and a plurality of apertures, located in the unit regions, that do not overlap the first electrodes in planar view. Each unit region includes a unit region center point located in a center of the unit region in planar view. Each aperture includes an aperture center point located in a center of the aperture in planar view. The plurality of apertures may include a plurality of D11 apertures each displaced toward a D11 side with respect to the unit region center point and a plurality of D12 apertures each displaced toward a D12 side with respect to the unit region center point. The D12 side is a side opposite to the D11 side in planar view.

Provided are an organic light-emitting display panel and manufacturing method thereof, a display device and a mask. The organic light-emitting display panel includes: multiple organic light-emitting units, a photosensitive module setting area, a display area surrounding the photosensitive module, and a bezel area surrounding the display area. The display area includes a first display area and a second display area. Organic light-emitting units in the first display area share a first cathode. Organic light-emitting units in the same group in the second display area share a second cathode. Two adjacent second cathodes are separated by a first gap. The bezel area extends to the photosensitive module setting area by the first gap.

Provided is an organic electroluminescent device. The organic electroluminescent device comprises a first electrode, a second electrode, and at least two light emitting units disposed between the first electrode and the second electrode, wherein the light emitting units each comprises at least one light emitting layer, and a connection layer of a specific structure is further disposed between adjacent two light emitting units. By using a connection layer of a specific structure, the organic light-emitting device reduces the device voltage, prolongs life time of the device, and improves the device performance.

The present disclosure relates to an organic electroluminescent compound, a plurality of host materials comprising at least one first host compound and at least one second host compound, and an organic electroluminescent device comprising the same. An organic electroluminescent device with improved driving voltage, luminous efficiency and/or lifespan properties can be provided by comprising the organic electroluminescent compound or the specific combination of compounds according to the present disclosure as a host material.

Provided are organometallic compounds comprising a Si or Ge atom which is carrying three substituted or unsubstituted non-fused aromatic rings and which is linked to an aryl-amino group comprising three or more fused rings via a at least one group consisting of pyridine, pyrazine, pyrimidine, and triazine. Also provided are formulations comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organometallic compounds.

A light emitting device that includes a first electrode, a second electrode oppositely disposed to the first electrode, and an emission layer disposed between the first electrode and the second electrode is provided. The emission layer includes a first compound represented by Formula 1.

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A composition, including a first compound represented by Formula 1, and a second compound represented by Formula 2, wherein the first compound and the second compound are different from each other:

Ir(L.sub.11).sub.n11(L.sub.12).sub.n12(L.sub.13).sub.n13  Formula 1

Ir(L.sub.21).sub.n21(L.sub.22).sub.n22(L.sub.23).sub.n23  Formula 2 wherein Formula 1 and Formula 2 are as defined in the specification.

An organic light emitting diode and an organic light emitting device thereof are provided, each including a first compound represented by the following structure, a second compound as a p-type host and a third compound as an n-type host in an emitting material layer. As a result, the organic light emitting diode and the organic light emitting device have advantages in the driving voltage, the luminous efficiency and the lifespan. The organic light emitting device includes the organic light emitting diode and can be a display device or a lighting device.

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An optical modulation device includes a first electro-optical device including a first light-emitting element including a light-emitting layer emitting light including a red wavelength region, a second electro-optical device including a second light-emitting element including a light-emitting layer emitting light including a green wavelength region, a third electro-optical device including a third light-emitting element including a light-emitting layer emitting light including a blue wavelength region, and a prism that synthesizes light emitted from the first, second and third electro-optical devices. Each of the first, second and third light-emitting elements includes a first electrode, a second electrode, and a conductive layer provided therebetween and having a lower reflectance with respect to the light emitted from the light-emitting layer than from the first electrode. A thickness of the conductive layer of the third light-emitting element is thinner than thicknesses of the conductive layers of the first and second light-emitting elements.