A display panel includes a substrate including an opening and a display area surrounding the opening, a light-emitting element in the display area and including a first electrode, an intermediate layer, and a second electrode, a multi-layered dam in a non-display area between the opening and the display area, an encapsulation layer extending substantially over the display area and the non-display area, and a first layer pattern disposed in one area of the non-display area.

Provided is a display panel including a bank layer including a first pixel opening and a second pixel opening, a first light-emitting element disposed in the first pixel opening, and including a first anode, a first organic layer, and a first cathode contacting the bank layer, a second light-emitting element disposed in the second pixel opening, and including a second anode, a second organic layer, and a second cathode spaced apart from the first cathode and contacting the bank layer, and a barrier layer disposed between the bank layer and the first anode, and exposing at least a part of the first anode. The first anode is spaced apart from the bank layer with the barrier layer disposed the first anode and the bank layer on a cross-section.

A display apparatus includes a substrate, a first pixel electrode disposed on the substrate and including a transparent electrode layer having a first extinction coefficient at a pre-determined wavelength, a counter electrode disposed on the first pixel electrode, a first emission layer disposed between the first pixel electrode and the counter electrode, and a first oxide semiconductor layer disposed between the first pixel electrode and the first emission layer, and having a second extinction coefficient less than the first extinction coefficient at the pre-determined wavelength.

An organic light-emitting diode (OLED) array substrate, a method for manufacturing an organic light-emitting diode (OLED) array substrate and a display apparatus are provided, and the OLED array substrate includes: a base substrate; a driving transistor, a first electrode, a second electrode, an organic material functional layer, and an auxiliary electrode connected to the second electrode disposed on the base substrate; and the driving transistor includes a gate electrode, a source electrode and a drain electrode, and the first electrode is electrically connected with the source electrode or the drain electrode; the auxiliary electrode is disposed in a same layer as at least one of the first electrode, the gate electrode, and the drain electrode.

A method of manufacturing an organic light emitting display device, the method includes forming a thin film transistor (TFT) in an active area of a substrate and forming a signal pad and a first pad electrode, connected to the signal pad, in a pad area of the substrate, forming a passivation layer on the TFT and the first pad electrode, forming a planarization layer on the passivation layer, removing a certain region of the passivation layer to simultaneously form an area, through which the TFT is exposed to the outside, and an area through which the first pad electrode is exposed to the outside, forming a first anode electrode connected to the TFT, a first auxiliary electrode spaced apart from the first anode electrode, and a second pad electrode that is connected to the first pad electrode and covers the exposed first pad electrode; and forming a second anode electrode, covering a top and a side surface of the first anode electrode, and a second auxiliary electrode covering a top and a side surface of the first auxiliary electrode.

A thin film transistor, a method for manufacturing the thin film transistor, an array substrate comprising the thin film transistor and an organic light emitting display panel comprising the thin film transistor are provided. The thin film transistor at least comprising an active layer made of carbon nanotube material with semiconductor properties or graphene with semiconductor properties; further comprising a first conductive layer and a second conductive layer respectively located on upper and lower sides of the active layer and in contact with the active layer, the first conductive layer and the second conductive layer formed a secondary electron emitting layer with electron multiplication function. The thin film transistor is advantageous in its simple structure and simple manufacturing process.

A lighting apparatus of the present disclosure includes an organic light emitting diode formed by a first electrode, an organic light emitting layer, and a second electrode on a first substrate and configures the first electrode by a transparent conductive material having an electrical resistance of 2800 to 5500? in each pixel. Therefore, even though the first electrode and the second electrode are in contact with each other to remove the electrical resistance by the organic light emitting layer in the pixel, the overcurrent is suppressed from being applied to the pixel by the electrical resistance of the first electrode. Further, at least one conductive pattern formed of a low electrical resistance transparent conductive material which is connected to the first electrode in the pixel is disposed to suppress the degradation of the luminance by the first electrode having a high electrical resistance.

Disclosed is a light-emitting element including a reflective electrode, a light-transmitting electrode over the reflective electrode, a partition wall over the light-transmitting electrode, the partition wall having a first opening and a second opening which overlap with the light-transmitting electrode, an electroluminescence layer over the first opening and the second opening, and an opposing electrode over the electroluminescence layer. A thickness of the light-transmitting electrode in a region overlapping with the first opening is smaller than a thickness of the light-transmitting electrode in a region overlapping with the second region.

An organic light-emitting device includes, in order an anode, an organic layer comprising a light-emitting layer, and a cathode. The anode is a laminated structure comprising in order: a first anode layer comprising a metal compound or a conductive oxide; a second anode layer that is a reflective layer; and a third anode layer comprising a metal compound or a conductive oxide. Light generated in the light-emitting layer is extracted through the cathode.

An organic light-emitting diode may have transparent electrodes. An organic emissive layer may be interposed between the electrodes. The emissive layer may emit light in response to current injected from the electrodes. The organic light-emitting diode electrodes may cover an electrode area. The electrode area may be square or may have other shapes. To enhance brightness uniformity, portions of the electrodes in a peripheral region (H1, H2) of the electrode area may have higher sheet resistances than a central portion of the electrode area. The electrode area may be square and may have four corners. The higher sheet resistances may be associated with regions of the electrode area adjacent to the corners. Elevated sheet resistances may be produced by forming the electrodes with different thicknesses in different areas or by providing supplemental conductive structures (104) in selected areas of the electrode area.