A multi-layer display including an upper substrate including light emitting diodes (LEDs) fabricated on a topside of the upper substrate, and LED bonding pads fabricated on a bottomside of the upper substrate. The LED bonding pads being electrically connected to the LEDs through vias extending through the upper substrate. The display also including a lower substrate including LED driver circuits and driver bonding pads fabricated on a topside of the lower substrate. The driver bonding pads being electrically connected to the LED driver circuits, where the LED bonding pads and driver bonding pads are aligned and electrically connected to each other, thereby electrically connecting the LED driver circuits to the LEDs.

The present disclosure can be applied to technical fields relating to display devices, and relates to a display device using, for example, micro light emitting diodes (LEDs), and a manufacturing method therefor. The present disclosure comprises the following steps: preparing an assembly in which a shock-absorbing layer is formed on a wiring substrate in which electrode pads are formed; positioning light emitting elements arranged on a base substrate at the locations of the electrode pads on the assembly; transferring the light emitting elements onto the shock-absorbing layer; and bonding the light emitting elements to the electrode pads.

The present disclosure can be applied to technical fields relating to display devices, and relates to a display device using, for example, micro light emitting diodes (LEDs), and a manufacturing method therefor. The present disclosure comprises the following steps: preparing an assembly in which a shock-absorbing layer is formed on a wiring substrate in which electrode pads are formed; positioning light emitting elements arranged on a base substrate at the locations of the electrode pads on the assembly; transferring the light emitting elements onto the shock-absorbing layer; and bonding the light emitting elements to the electrode pads.

A display device includes a bank layer disposed on a substrate and defining a light-emitting area and a sub-area, a first electrode and a second electrode spaced apart from each other and extending from the light-emitting area to the sub-area, a plurality of light-emitting elements disposed on the first electrode and the second electrode in the light-emitting area, a plurality of dummy light-emitting elements disposed on the first electrode and the second electrode in the sub-area, a first connection electrode in electrical contact with an end of each of the plurality of light-emitting elements, and a second connection electrode in electrical contact with another end of each of the plurality of light-emitting elements. The sub-area includes an isolation area in which each of the first electrode and the second electrode is disconnected, and the plurality of dummy light-emitting elements are not disposed in the isolation area.

A display device includes a bank layer disposed on a substrate and defining a light-emitting area and a sub-area, a first electrode and a second electrode spaced apart from each other and extending from the light-emitting area to the sub-area, a plurality of light-emitting elements disposed on the first electrode and the second electrode in the light-emitting area, a plurality of dummy light-emitting elements disposed on the first electrode and the second electrode in the sub-area, a first connection electrode in electrical contact with an end of each of the plurality of light-emitting elements, and a second connection electrode in electrical contact with another end of each of the plurality of light-emitting elements. The sub-area includes an isolation area in which each of the first electrode and the second electrode is disconnected, and the plurality of dummy light-emitting elements are not disposed in the isolation area.

A display device includes pixels including light-emitting elements disposed in each emission area. Each of the pixels includes at least one array including the light-emitting elements and disposed in the emission area, and a number of the light-emitting elements disposed in each of arrays of the pixels is greater than aa minimum number of the light-emitting elements in the each of the arrays having a normal distribution or Poisson distribution.

A display device includes a substrate including a display area and a non-display area, a plurality of pixel electrodes disposed on the substrate in the display area, light emitting elements each disposed on a corresponding one of the plurality of pixel electrodes, a common electrode disposed on the light emitting elements and commonly connected to a plurality of pixels, and an auxiliary electrode disposed on the common electrode and not overlapping with the light emitting elements in a thickness direction of the substrate.

A display device includes a substrate including a display area and a non-display area, a plurality of pixel electrodes disposed on the substrate in the display area, light emitting elements each disposed on a corresponding one of the plurality of pixel electrodes, a common electrode disposed on the light emitting elements and commonly connected to a plurality of pixels, and an auxiliary electrode disposed on the common electrode and not overlapping with the light emitting elements in a thickness direction of the substrate.

In a method of manufacturing a display device, the method includes providing a carrier module including a carrier wafer and light-emitting elements, forming a planarization layer between the light-emitting elements, forming a transparent electrode layer on the planarization layer, inspecting the light-emitting elements, and removing the planarization layer and the transparent electrode layer.

In a method of manufacturing a display device, the method includes providing a carrier module including a carrier wafer and light-emitting elements, forming a planarization layer between the light-emitting elements, forming a transparent electrode layer on the planarization layer, inspecting the light-emitting elements, and removing the planarization layer and the transparent electrode layer.