An organic light-emitting diode device and a manufacturing method thereof, a display substrate, and a display device are provided. The organic light-emitting diode device includes an anode layer, an organic light-emitting layer and a cathode layer which are stacked. The organic light-emitting diode device further includes a self-repairing layer, and the self-repairing layer is arranged on a side of the cathode layer away from the anode layer, and the self-repairing layer is applicable for repairing the cathode layer by an oxidation-reduction reaction.

An apparatus for manufacturing a display device and a method of manufacturing the display device are provided. The apparatus for manufacturing the display device includes: a mounting unit, on which a display substrate may be arranged; an inspection unit movably arranged on the mounting unit and configured to inspect whether or not an organic encapsulation layer of the display substrate is defective; and a repair unit movably arranged on the mounting unit and configured to supply an organic material to a defective portion of the organic encapsulation layer, or to remove at least a portion of the defective portion of the organic encapsulation layer.

A display device is provided. The display device includes a substrate, a first electrode, a second electrode, and third electrode spaced apart from each other in a first direction on the substrate, a repair line spaced apart from the first to third electrodes in the first direction on the substrate, a repair connection portion connecting the third electrode and the repair line, and light emitting elements on respective ones of the first to third electrodes and spaced apart from each other.

A method for producing an organic electroluminescent device, includes the steps of forming the thin film encapsulation structure including: step A of forming a first inorganic barrier layer, step B of, after step A, detecting particles located below or above the first inorganic barrier layer and each having an area-equivalent diameter of 0.2 μm or longer and 5 μm or shorter, and finding position information, size information and shape information on each of the detected particles and finding an aspect ratio of each of particles, among the detected particles, having an area-equivalent diameter of 1 μm or longer, step C of supplying each of the particles with a microscopic liquid drop(s) of a coating liquid containing a photocurable resin by an inkjet method based on the position information, step D of, after step C, irradiating the photocurable resin with ultraviolet rays and thus curing the photocurable resin to form an organic barrier layer, and step E of, after step D, forming a second inorganic barrier layer on the first inorganic barrier layer and the organic barrier layer, and wherein step C includes the step of supplying each of first particles each having an aspect ratio of 3 or larger, among the particles, with a first microscopic liquid drop having a volume of 0.1 fL or larger and smaller than 10 fL at least twice along a longer axis of the first particle.

A light emitting display device includes a light emitting element including a pixel electrode, a common electrode, and a light emitting layer interposed between the pixel electrode and the common electrode, and a pixel circuit electrically connected to the pixel electrode of the light emitting element, wherein the pixel electrode may include a first pixel electrode portion, a second pixel electrode portion spaced apart from the first pixel electrode portion, a circuit contact portion connected to the pixel circuit, a first electrode connection portion connected or disconnected between the first pixel electrode portion and the circuit contact portion, and a second electrode connection portion connected or disconnected between the second pixel electrode portion and the circuit contact portion.

A self-luminous display panel 10 in which self-luminous elements 2 are arranged on a plane, wherein each of the self-luminous elements includes: a pair of electrodes 13, 20 disposed facing each other, an electrode of the pair of electrodes including a metal layer 20A; functional layers 15, 16, 17, 18, 19 including a light emitting layer 17, disposed between the pair of electrodes; and a sealing layer 21 that covers the pair of electrodes and the functional layers from a direction. The self-luminous elements include a repaired self-luminous element 2′. The repaired self-luminous element includes a foreign object FO among the functional layers. The electrode including the metal layer has a high resistance portion 201 surrounding, in plan view, an area containing the foreign object, and has a thickened portion 202 of the metal layer at an outer edge, in plan view, of the high resistance portion.

A display panel repair device and a display panel repair method are disclosed. The display panel repair device includes an ultrasonic generator and a beam control device. The ultrasonic generator is configured to generate ultrasonic; and the beam control device is configured to direct the ultrasonic to emit to a pre-determined position, so as to be able to repair a display panel to be repaired by the ultrasonic.

A display device comprises a pixel electrode including a first subpixel electrode and a second subpixel electrode arranged to be spaced apart from each other within at least one subpixel of a plurality of subpixels over a substrate, a driving transistor driving the one subpixel, and a connection electrode structure electrically connecting at least one subpixel of the first subpixel electrode and the second subpixel electrode of the pixel electrode with the driving transistor.

A multi-piece substrate integrally having a plurality of product regions each provided with a light-emitting element driven by a current and a blank region adjacent to each of the plurality of product regions is prepared. The current is passed through a cathode pad and an anode pad to inspect the light-emitting element. A plurality of display panels are cut out from the multi-piece substrate so as to respectively correspond to the plurality of product regions. The multi-piece substrate includes a plurality of first test pads disposed in each of the plurality of product regions for inspecting the light-emitting element, and a plurality of second test pads disposed in the blank region for inspecting the light-emitting element. The cathode pad and the anode pad are included in the plurality of first test pads and are not included in the plurality of second test pads.

The present disclosure provides an organic light-emitting diode display substrate. The organic light-emitting diode display substrate includes: a light-emitting layer, a light modulation layer, and a color conversion layer, in which the light-emitting layer is configured to emit first color light, the light modulation layer and the color conversion layer are arranged on different light-exiting paths of the light-emitting layer, the color conversion layer is configured to convert first color light into second color light and third color light, and the light modulation layer is configured to modulate an emergent direction of first color light.