Provided is a ultra-small light-emitting diode (LED) electrode assembly including a base substrate; an electrode line formed on the base substrate, and including a first electrode and a second electrode formed in a line shape to be interdigitated with each other while being spaced apart from each other; and at least one ultra-small LED device connected to the electrode line. A cross section of at least one of the first and second electrodes in a vertical direction has a height variation such that the first and second electrodes easily come in contact with the at least one ultra-small LED device.

A display panel and a display device are disclosed. The display panel includes an underlay substrate, a light emitting functional layer, a light shielding layer, a light extraction layer, and a light filter layer. The light emitting functional layer includes a plurality of light emitting units. The light shielding layer includes a plurality of first apertures. The first apertures are disposed to correspond to the light emitting units. The light extraction layer covers sidewalls of the first apertures and comprises a plurality of second apertures. The light filter layer includes a plurality of light filter units. The light filter units are filled in the second apertures, and a refractive index of the light extraction layer is less than a refractive index of the light filter unit.

The present disclosure provides a light-emitting chip, a light-emitting device and a display apparatus. The light-emitting chip includes a pixel circuit layer, a light-emitting unit group located on a side of the pixel circuit layer, and a plurality of conductive pads located on a side of the pixel circuit layer facing away from the light-emitting unit. The pixel circuit layer includes at least a part of the structure of the pixel circuit and a plurality of signal lines. The light-emitting unit group includes at least one light-emitting unit, the light-emitting unit is electrically connected with the pixel circuit. One of the conductive pads is electrically connected with one of the signal lines. The light-emitting device includes the plurality of light-emitting chips and the second drive circuit, the plurality of conductive pads are connected with the second drive circuit. The display apparatus includes a light-emitting device.

Display structures and methods of fabrication are described. In an embodiment, a display structure includes an array of pixel driver chips embedded in an insulation layer, a redistribution layer (RDL) over and in electrical contact with the array of pixel driver chips, and an array of light emitting diodes (LEDs) over and in electrical contact with the RDL, where the array of LEDs includes different groups of LEDs designed for different wavelength emission spectra, and the top surfaces of the LEDs are coplanar.

A light emitting apparatus includes a substrate and at least one light emitting device disposed on the substrate and configured to emit light, wherein a luminous flux in a blue wavelength region is in the range of 0.01 times to 0.1 times the total luminous flux.

An optoelectronic device includes a semiconductor stack, including a first semiconductor layer, an active layer, and a second semiconductor layer; a contact electrode formed on the second semiconductor layer; an insulating reflective structure covering the contact electrode and including a plurality of insulating reflective structure openings to expose the contact electrode; a metal reflective structure covering the plurality of insulating reflective structure openings to electrically connect to the contact electrode; and an insulating structure including one or more first insulating structure openings to expose the first semiconductor layer and one or more second insulating structure openings to expose the metal reflective structure.

A display apparatus includes a through hole panel, a mounting module including a plurality of light emitting diodes (LEDs) and disposed to oppose the through hole panel, and a plurality of supporting reinforcement parts including a first portion of one or more supporting reinforcement parts disposed in a first direction and in contact with the through hole panel, and a second portion of one or more supporting reinforcement parts disposed in a second direction and in contact with the mounting module. The first portion and the second are configured to adjust a spacing distance between the through hole panel and the mounting module.

A display includes a first housing portion having graphic openings and a second housing portion spaced apart from the first housing portion. A first circuit board has LEDs and is disposed between the first and second housing portions. A first side wall and a second side wall define photon recycling cavities in a sequence wherein adjacent photon recycling cavities have a shared end wall an LED. The first side wall has a first angular surface and the second side wall has a second angular surface. The first angular surface and the second angular surface redirecting light from an associated LED of the plurality of LEDs so that light from the plurality of light emitting diode is indirectly communicated through the graphic openings after reflecting from the first angular surface and the second angular surface.

A display panel includes an integrated circuit substrate, a light-emitting device layer and a second electrode. The light-emitting device layer includes light-emitting devices disposed respectively in light-emitting areas and insulating layers disposed respectively in insulating barrier areas, and each insulating barrier area is disposed between two adjacent light-emitting areas. Each insulating layer has opposite ends respectively connected to the second electrode and the integrated circuit substrate and each light-emitting device is surrounded by several insulating layers, so that the several insulating layers, the second electrode and the integrated circuit substrate together form a closed accommodating chamber for accommodating the light-emitting device.

A display device includes a display area in which a plurality of pixels, each including a plurality of pixel electrodes spaced apart from each other, are disposed. A first light blocking layer is disposed in the display area and includes a plurality of holes overlapping the plurality of pixel electrodes. A plurality of color filters is disposed on the first light blocking layer and respectively corresponds to the plurality of holes. A second light blocking layer is disposed on the color filter and corresponds to the pixel electrodes of some of the plurality of pixels. The second light blocking layer surrounds the pixel electrodes of some of the plurality of pixels in a plan view and includes a plurality of light blocking patterns having different widths.