A display panel comprising a first display area, a second display area including a through portion, and a third display area disposed between the first display area and the second display area. The display panel further comprises a substrate extending continuously from the first display area to the third display area and separating the substrate in the second display area. A plurality of display elements is arranged on the substrate and includes a first display element, a second display element, and a plurality of third display elements. An organic insulating layer is arranged between the substrate and the plurality of display elements and includes a second display area hole disposed between the second display element and the through portion, and a third display area hole disposed between adjacent third display elements of the plurality of third display elements.

An etching composition for a silver-containing thin film, the etching composition comprising an inorganic acid compound, a sulfonic acid compound, an organic acid compound, a nitrate, a metal oxidizing agent, an amino acid compound, and water.

An embodiment of the present invention provides a manufacturing method of a display device, including: forming a pixel circuit portion overlapping a display area on a substrate; forming a first electrode that is electrically connected to the pixel circuit portion; forming a partition wall overlapping a portion of the first electrode; forming a dummy line overlapping a peripheral area surrounding the display area by using a dispenser; and forming at least a portion of an intermediate layer in the partition wall by an inkjet process.

A display device includes a via layer disposed on a substrate and including a via groove having a shape recessed from a first surface to a second surface of the via layer. A first electrode is disposed on the first surface. A pixel-defining film is disposed on the via layer and the first electrode. A first pixel-defining film through-hole passes through the pixel-defining film in a thickness direction and exposes the first electrode. A second pixel-defining film through-hole passes through the pixel-defining film in the thickness direction. The second pixel-defining film through-hole is spaced apart from the first pixel-defining film through-hole and overlaps the via groove. An emission layer is disposed on an exposed portion of the first electrode. A protrusion is disposed on the pixel-defining film and includes a protrusion through-hole which passes through the protrusion in the thickness direction and overlaps the second pixel-defining film through-hole.

A display panel includes: a substrate on which pixels are disposed; a bank which defines a light emitting area of the pixels; a light emitting layer formed in the light emitting area, the bank includes: a hydrophilic bank which extends in a row direction and separates pixel rows; a first hydrophobic bank which is formed on the hydrophilic bank; and a second hydrophobic bank which extends in a column direction and separates pixel columns, and the first hydrophobic bank has a lower hydrophobic property than that of the second hydrophobic bank.

A display device includes a substrate on which a plurality of pixels are disposed; a bank defining emission areas of the plurality of pixels; and an emission layer formed in each of the emission areas, wherein the bank includes a first bank extended in row and column directions; a second bank disposed on the first bank and extended in the column direction to separate adjacent pixel columns; and a third bank disposed on the second bank, wherein the first bank is hydrophilic, and each of the second bank and the third bank has a hydrophobic upper surface.

A display device includes a substrate on which pixels are arranged; a first bank which is disposed on the substrate, extends in a row direction and in a column direction, and defines a light emitting area of the pixels; a second bank which is disposed on the first bank, extends in the column direction, and separates adjacent pixel columns; and a third bank which is disposed on both sides of the first bank.

A display device includes a substrate, a first semiconductor layer on the substrate and including an oxide semiconductor, a first gate insulating film on the first semiconductor layer, a first conductive layer on the first gate insulating film, a first interlayer insulating film on the first conductive layer, and a second conductive layer on the first interlayer insulating film and connected to the first semiconductor layer through a through-hole. The through-hole includes a first through-hole passing through the first interlayer insulating film, and a second through-hole overlapping the first through-hole and passing through the first semiconductor layer. The second conductive layer is in contact with a side surface of the first semiconductor layer exposed at the second through-hole.

A display apparatus includes a display panel in which a through-opening is defined, where the display panel includes a first pixel area in which a first pixel is disposed, a second pixel area in which a second pixel is disposed, and a connection area extending from the first pixel area to the second pixel area, where an edge of the first pixel area, an edge of the connection area, and an edge of the second pixel area define at least a part of the through-opening passing through the display panel, and where a thickness of the display panel in the connection area is less than a thickness of the display panel in the first pixel area.

A light-emitting device includes a strip-like high flexibility region and a strip-like low flexibility region arranged alternately in a direction. The high flexibility region includes a flexible light-emitting panel. The low flexibility region includes the light-emitting panel and a support panel having a lower flexibility than that of the light-emitting panel and overlapping with the light-emitting panel. It is preferable that the light-emitting panel include an external connection electrode and that a length in the direction of a low flexibility region A that overlaps with the external connection electrode be longer than a length in the direction of a low flexibility region B that is closest to the region A.