Discussed is a light-emitting device that can include a first electrode and a second electrode facing each other, and disposed on a substrate; a first light emitting stack and a second light emitting stack between the first electrode and the second electrode; and a charge generation stack between the first light emitting stack and the second light emitting stack. The charge generation stack can include a first layer including a first host, a second host, and a metal dopant, and a second layer including the first host, the metal dopant, a third host, and a p-type organic dopant. Amounts of the metal dopant in the first layer and the second layer respectively can increase in going towards an interface between the first layer and the second layer.

Disclosed are a light emitting element and a display device including the same, wherein a hole generation layer is further provided between a hole transport layer and an emission layer, in addition to an electron blocking layer, in order to control the speed of electrons and holes introduced into the emission layer, whereby it is possible to prevent accumulation of carriers at the electron blocking layer or the hole transport layer, and therefore it is possible to reduce turn-on voltage, to maintain uniform efficiency irrespective of change in current density, to prevent defects at specific gradation, and to increase lifetime.

A light emitting display device can include a light emitting diode structure disposed on a substrate and having a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel, a bank that defines a pixel area of each of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel, and a function improving unit disposed on the first emission part, the second emission part, the third emission part, the fourth emission part and the bank. One or two of sub-pixel among the first to fourth sub-pixels include a tandem emission part in which a first emission unit including a first emission layer and a second emission unit disposed on the first emission unit and including a second emission part are laminated.

A display device includes a substrate, a light-emitting element positioned on the substrate; and an encapsulation layer positioned on the light-emitting element and comprising a first layer, a second layer positioned on the first layer, and a third layer positioned on the second layer, wherein the first layer comprises a first polymer, the second layer comprises a compound represented by Formula 1, and the third layer comprises a second polymer and a hygroscopic getter, wherein, in Formula 1, A is a C.sub.1-C.sub.10 alkyl group or a C.sub.6-C.sub.60 aryl group, n is an integer from 1 to 100, m is an integer from 1 to 6, o is an integer greater than or equal to 1, and R.sup.1 is a hydroxyl group.

A display device includes a sacrificial layer positioned between an encapsulation layer and a light-emitting element that includes a first compound that is the same as a first compound of a light-emitting layer of the light-emitting element, thereby protecting the light-emitting element from an outgas of the encapsulation layer to prevent the generation of dark spots.

A light-emitting device having an electron transport layer that includes a first electron transport layer including an inorganic oxide and a second electron transport layer including an organic material is provided. The first electrode is a reflective electrode.

A light emitting display apparatus includes a planarization layer provided in a substrate, a plurality of anodes provided on the planarization layer, a bank including opening regions exposing the anodes, a light emitting layer provided on the plurality of anodes and the bank, and a cathode provided on the light emitting layer, the cathode including a boundary region cathode and a main cathode, wherein a boundary groove is at an outer portion of each of the plurality of anodes.

According to one embodiment, a display device includes a substrate, a pixel circuit, an insulating layer including a contact hole, a lower electrode connected to the pixel circuit through the contact hole, an upper electrode, an organic layer between the lower and upper electrodes, a rib including an aperture, a partition above the rib, and a filling material inside the contact hole. The organic layer includes a first organic layer in contact with the lower electrode through the aperture, and a second organic layer on the partition. The partition and the rib overlap at least part of the contact hole and the filling material in plan view.

A display device includes a substrate, a first conductive layer on the substrate, a buffer layer on the first conductive layer, a first semiconductor layer on the buffer layer, a gate insulating layer on the first semiconductor layer and the buffer layer and a second conductive layer on the gate insulating layer, wherein the second conductive layer is in contact with the first conductive layer and the first semiconductor layer through a first contact hole on the buffer layer and the gate insulating layer.

A display device includes: a display panel including a base layer, a light emitting element layer, and an encapsulation layer; and an input detection unit disposed on the display panel, wherein the display panel includes: a first side and a second side, wherein the encapsulation layer includes an organic encapsulation layer including: an inclined part adjacent to the first side and the second side; and a flat part extending from the inclined part, wherein a first angle formed by the inclined part with respect to an upper surface of the base layer in a first part of the display panel and input detection unit adjacent to the first side is less than a second angle formed by the inclined part with respect to the upper surface of the base layer in a second part of the display panel and input detection unit adjacent to the second side.