A display device has a first electrode provided corresponding to each of a plurality of pixels in a region in which the plurality of pixels is provided, a second electrode provided over the plurality of pixels and extending to a contact region provided outside the pixel region, a light emitting layer provided between the first electrode and the second electrode, a third electrode provided in the contact region, an organic insulating layer covering the third electrode and provided with a contact hole exposing the third electrode, and a connection portion between the second electrode and the third electrode in the contact hole, wherein the maximum distance between any two points on the outer periphery of the connection portion is 1 m or more and 100 m or less.

A display apparatus according to an embodiment of the present disclosure comprises a display area, a first area disposed in the display area and comprising a hole region and a first pattern portion surrounding the hold region, a plurality of first patterns disposed in the first pattern portion, and a first insulating layer and a second insulating layer disposed on the plurality of first patterns, wherein the first insulating layer and the second insulating layer are spaced apart from each other between the plurality of first patterns, and wherein the first insulating layer and the second insulating layer are in contact with each other on an upper surface of each of the plurality of first patterns.

The present application provides a display panel and a manufacturing method thereof. The display panel includes an array substrate, a light emitting layer, and a water and oxygen adsorption layer. The light emitting layer is disposed on the array substrate. The light emitting layer includes a pixel definition structure and a plurality of light emitting parts, the pixel definition structure includes a plurality of grooves, and the light emitting parts are disposed in the grooves. The water and oxygen adsorption layer includes a plurality of water and oxygen adsorption parts, the water and oxygen adsorption parts are disposed on the pixel definition structure, and a surface of the water and oxygen adsorption parts is convex.

A method for manufacturing a display device, includes discharging ink containing a solvent onto a substrate to form a preliminary functional layer, providing a temperature control member on a lower surface of the substrate, providing a drying member having a plurality of thermally conductive balls on an upper surface of the substrate, and drying the preliminary functional layer by the drying member.

According to one embodiment, a display device comprises a first lower electrode, a rib including a first pixel aperture, a partition including a lower portion on the rib and an upper portion protruding from a side surface of the lower portion, a first upper electrode, and a first organic layer between the first lower electrode and the first upper electrode. The lower portion includes a bottom layer and a stem layer on the bottom layer. The bottom layer is formed of a material which has a smaller etching rate to a mixed acid containing phosphoric acid, nitric acid, and acetic acid than the stem layer and which is conductive.

A display device of the present disclosure includes an organic EL layer formed on a circuit portion, which is formed on a substrate, with an insulating film interposed therebetween, a cathode electrode formed on the organic EL layer in common to all pixels, and a metal wiring provided on an outer peripheral portion of an effective pixel region and electrically connecting the cathode electrode to a wiring of the circuit portion. Then, the metal wiring has a recess or a projection on a contact surface in a connection portion with the cathode electrode. Furthermore, an electronic device according to the present disclosure has the display device having the above configuration.

A method for manufacturing a display apparatus having high display quality is provided. A method for manufacturing a display apparatus including first to third insulators, first and second conductors, and first and second EL layers is provided. The first conductor is formed over the first insulator, and the second insulator is formed over the first insulator and over the first conductor. A first opening portion reaching the first conductor is formed in the second insulator. A sacrificial layer is formed over the second insulator and over a bottom surface of the first opening portion, and a resist is applied over the sacrificial layer. Light exposure and development are performed on the resist, so that a second opening portion reaching the sacrificial layer is formed in a region overlapping with the first conductor. A third opening portion is formed in a region of a bottom surface of the second opening portion, and the first EL layer is formed over the resist, over the sacrificial layer, and over the first conductor. Then, the resist and the sacrificial layer are removed, whereby the first EL layer over the resist and over the sacrificial layer is removed. The second EL layer is formed over the first EL layer and over the second insulator, and the second conductor and the third insulator are formed in order over the second EL layer.

An OLED display panel and an OLED display device are provided. The OLED display panel comprises: a substrate comprising a display area and a non-display area; a pixel driving circuit disposed on the display area, wherein the pixel driving circuit comprises a reset signal input end and a cathode signal input end; and a cathode signal trace arranged on the non-display area, wherein the cathode signal trace is electrically connected to both the reset signal input end and the cathode signal input end.

An electronic device includes a substrate, a display unit and a touch sensor unit. The substrate includes a first region and a second region, wherein the first region and the second region are separate from each other. The display unit, disposed at the first region of the substrate, includes an electroluminescent (EL) device that includes a first cathode electrode in a patterned cathode layer over an interconnection structure disposed between the substrate and the EL device. The touch sensor unit, disposed at the second region of the substrate, is configured to detect a touch event. The touch sensor unit includes a second cathode electrode in the patterned electrode layer, and a capacitor defined in the interconnection structure. The capacitor includes a conductive plate electrically coupled to the second cathode electrode.

In accordance with various embodiments of the disclosed subject matter, a transparent display panel and a related display device are provided. In some embodiments, a transparent display panel is provided, the transparent display panel comprises: a first region and a second region, wherein the first region comprises a plurality of first display units, the second region comprises a plurality of second display units, a transmission rate of the one of the plurality of first display units is higher than a transmission rate of the one of the plurality of second display units, and a luminance rate of the one of the plurality of first display units is lower than a luminance rate of the one of the plurality of second display units.