In a display device using a substrate having flexibility, a drop in reliability due to defects such as cracks in the case where a substrate is made to curve is controlled. A display device is provided including a first substrate having flexibility, the first substrate including a curved part, an organic film covering a first surface of the first substrate and a second surface opposing the first surface in the curved part; and a pixel part and a drive circuit part arranged on the first surface.

A foldable display device includes a display panel including a front surface and a rear surface opposite the front surface, the front surface including a first component area including a first transmissive portion, a second component area including a second transmissive portion, and a main display area at least partially surrounding the first component area and the second component area, wherein, in a state in which the foldable display device is folded about a first folding axis that crosses the main display area such that two areas of the front surface or two areas of the rear surface face each other, the first component area and the second component area overlap each other on a plane.

A transparent display device including a base substrate, a plurality of pixels disposed on the base substrate, each pixel having an emission area and a transmission area transparent to external light, a circuit element layer disposed on the base substrate, a first electrode disposed on the circuit element layer and corresponding to the emission area, a pixel define layer disposed on the circuit element layer, the pixel define layer including a first sidewall defining the emission area and a second sidewall defining the transmission area, an emission layer disposed on the first electrode and corresponding to the emission area, and a second electrode disposed on the emission layer and including an opening that corresponds to the transmission area, in which the first sidewall is inclined at a first angle, and the second sidewall is inclined at a second angle greater than the first angle.

A display apparatus and a method of manufacturing the same are provided. According to an embodiment, a display apparatus includes: a substrate; a thin-film transistor located on the substrate; and a buffer layer, a conductive layer, and an insulating layer sequentially located from the substrate between the substrate and the thin-film transistor, and a thickness of the insulating layer is less than a thickness of the buffer layer.

Disclosed are a heterocyclic compound represented by Formula 1 and an organic light emitting device using the same. The heterocyclic compound is used as a material for hole injection layer, hole transport layer, hole injection and transport layer, light emission layer, electron transport layer, or electron injection layer of the organic light emitting device and provides improved efficiency, low driving voltage, and improved lifetime characteristic. ##STR00001##

The present invention relates to a method for manufacturing a polyimide-based film and a polyimide-based film manufactured thereby and, particularly, to a method for manufacturing a polyimide-based film and a polyimide-based film manufactured thereby, wherein the polyimide-based film is useful as a cover substrate for a flexible electronic device since flexure characteristics thereof, represented by yield elongation, are excellent.

The present invention relates to compounds of formula (1) which are suitable for use in electronic devices: ##STR00001##

One embodiment can provide a photovoltaic roof tile. The photovoltaic roof tile can include a front glass cover, a back glass cover, a plurality of photovoltaic structures positioned between the front and back glass covers, and a single encapsulant layer positioned between the front glass cover and the photovoltaic structures. A surface of the photovoltaic structures is in direct contact with the back glass cover.

A display film includes a transparent glass layer having a thickness of 250 micrometers or less, or in a range from 25 to 100 micrometers. A transparent energy dissipation layer is fixed to the transparent glass layer. The transparent energy dissipation layer has a glass transition temperature of 27 degrees Celsius or less, a Tan Delta peak value of 0.5 or greater, or from 1 to 2 and a Young's Modulus (E′) greater than 0.9 MPa over a temperature range of −40 degrees Celsius to 70 degrees Celsius. In a preferred embodiment, the transparent energy dissipation layer comprises a cross-linked polyurethane layer or a cross-linked polyurethane acrylate layer.

The present disclosure relates to the field of display technology, and provides an array substrate and a display panel. The array substrate is provided with a via hole and further includes an annular wiring area. The annular wiring area is located around the via hole and is provided with an incision extending toward an outer edge of the annular wiring area along an inner edge of the annular wiring area, and at least a portion of the annular wiring area is bent toward a side away from a display side along the inner edge.