Provided is a display device 100 that includes a display panel having flexibility (an organic EL panel 1 as an example), and an optical member 2 having flexibility, arranged so as to be stacked on the display panel, wherein the display panel and the optical member 2 are stacked and bonded in a bent state, and thereafter stretched into a flat shape.

A method for making an electroluminescent marking on an exterior wall of an aircraft, including a step of superpositioning of layers designed or configured to produce the electroluminescent marking on a first face of a flexible backing distinct from the aircraft to obtain a marking tape and a step of affixing the marking tape to the exterior wall of the aircraft. The disclosure herein also concerns a marking tape for the implementing of the method, a marking device obtained from the method, and an aircraft comprising the marking device.

The present disclosure proposes a flexible display and a method of forming the flexible display. The flexible display includes a flexible base, an OLED element disposing on the flexible base, an encapsulation layer disposed on the OLED element, with the flexible base and/or the encapsulation layer comprising one or more patterned inorganic layers and two or more organic layers, which are configured to wrap the inorganic layers. Therefore, when the stress focuses on the inorganic layer and leads to fractures and peeling-offs, the organic layers that wrapped the inorganic layer prevent the expansion of the fractures and peeling-offs, therefore extend the life of the flexible display being flexible and pliable.

Provided is a transparent conductive film-equipped substrate that makes it difficult for an insulating film provided on a portion from which a transparent conductive film has been removed to peel off. The transparent conductive film-equipped substrate 10 includes a substrate 1 and a transparent conductive film 2 provided on the substrate 1 and subjected to patterning, wherein the transparent conductive film-equipped substrate is made up so that: a removal region A1 where the transparent conductive film 2 has been removed by patterning, a non-removal region A2 where the transparent conductive film is left unremoved, and a boundary region A3 provided between the removal region A1 and the non-removal region A2 are formed on the substrate 1; and the boundary region A3 is formed with insular portions 2b in which the transparent conductive film 2 is formed in insular shapes.

The present invention provides a circularly polarizing plate that makes it possible to realize a bendable display device having reduced reflectivity and reflective tint and has excellent bending resistance, and a display device including a circularly polarizing plate. The circularly polarizing plate of the present invention is a circularly polarizing plate used for a bendable display device and includes a polarizer, and a phase difference film that is arranged on one side of the polarizer. The phase difference film includes a λ/2 plate and a λ/4 plate, the λ/2 plate and the λ/4 plate each include a liquid crystal compound, and a slow axis direction of the phase difference film is adjusted to define an angle of 75 to 105 degrees with respect to a bending direction of the display device.

A display device includes: an insulating substrate having flexibility and including a bent portion that is bent at 90 degrees or more outside a display area provided with an image display function; and a spacer disposed inside the bent portion and including a curved area around which the bent portion is wrapped and a plane area facing the insulating substrate, wherein the insulating substrate includes a flat portion adjacent to the bent portion and provided so as to face the plane area.

According to one embodiment, a light-emitting element includes a substrate, a first electrode, a second electrode, and a light-emitting layer. The substrate is light-transmissive. The second electrode is provided between the first electrode and a portion of the substrate. The second electrode is light-transmissive. A light-emitting layer is provided between the first electrode and the second electrode. The substrate includes a first region and a second region. The first region overlaps at least a portion of the light-emitting layer in a first direction, the first direction is from the second electrode toward the first electrode. The second region is provided around the first region along a plane perpendicular to the first direction. The substrate has an opening provided in at least a portion of the second region.

An oxadiazole dye for use as an organic photosensitizer. The oxadiazole dye comprising donor-π-spacer-acceptor type portions in which at least one of an oxadiazole isomer acts as a π-conjugated bridge (spacer), a biphenyl unit acts as an electron-donating unit, a carboxyl group act as an electron acceptor group, and a cyano group acts as an anchor group. An optional thiophene group acts as part of the π-conjugated bridge (spacer). The dye for use as organic photosensitizers in a dye-sensitized solar cell and in photodynamic therapies. Computational DFT and time dependent DFT (TD-DFT) modeling techniques showing Light Harvesting Efficiency (LHE), Free Energy for Electron Injection (ΔG.sup.inject), Excitation Energies, and Frontier Molecular Orbitals (FMOs) indicate that the series of dye comprise a more negative ΔG.sup.inject and a higher LHE value; resulting in a higher incident photon to current efficiency (IPCE).

Platinum, palladium, and gold tetradentate metal complexes of Formulas I and II including indoloacridine.

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The complexes are suitable for use as phosphorescent or delayed fluorescent and phosphorescent emitters in display and lighting applications.

The present invention relates to: a composition for an organic photoelectronic element comprising at least one type of a first chemical compound represented by chemical formula 1 and at least one type of a second chemical compound represented by chemical formula 2; an organic photoelectronic element comprising the same; and a display apparatus comprising said organic photoelectronic element. Chemical formulas 1 and 2 are described in the specification of the present invention.