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.

Provided is a display panel. The display panel includes a base substrate, a light-emitting layer, a package layer, and a light conversion layer that are successively stacked. The light conversion layer includes a plurality of light conversion units arranged in an array and a plurality of micro-mirror structures. The plurality of light conversion units include a plurality of first light conversion units, and the plurality of micro-mirror structures include a plurality of first micro-mirror structures surrounding the first light conversion units. Each of the first micro-mirror structures is configured to reflect at least a portion of light from an interior of each of the first light conversion units.

An optoelectronic apparatus comprises an at least partially transparent first cover, a second cover and at least one first layer segment, in particular intermediate layer segment, which is arranged between the first cover and the second cover. The first layer segment carries an arrangement of a plurality of optoelectronic light sources. The arrangement of the plurality of optoelectronic light sources has a defined shape with a defined contour and the first layer segment has the same shape and the same contour as the arrangement of the plurality of optoelectronic light sources.

A light-emitting element extending in one direction includes: a semiconductor core including a main body extending in the one direction, a first end connected to one side of the main body and having an inclined side surface, and a second end connected to an other side of the main body and having a width less than that of the main body; and an insulation film around at least a portion of the outer surface of the semiconductor core, wherein the insulation film includes a first insulation film around the first end of the semiconductor core; and a second insulation film around the second end of the semiconductor core, wherein the diameter of an outer surface of the first insulation film is the same as a diameter of an outer surface of the second insulation film.

An embodiment provides a display device including a light functional layer disposed on a substrate, the light functional layer includes a bank having openings, a first light scattering pattern, a first sub-light conversion pattern, a second light scattering pattern, and a second sub-light conversion pattern sequentially disposed in a first opening of the openings, and a thickness of each of the first sub-light conversion pattern and the second sub-light conversion pattern is thicker than a thickness of the first light scattering pattern and the second light scattering pattern.

A display device includes a pixel electrode, a light emitting element including a first semiconductor layer, an active layer, and a second semiconductor layer sequentially located on the pixel electrode, a groove being in a portion of the light emitting element where the second semiconductor layer is located, a common electrode on the light emitting element, and a light scattering layer on the common electrode and filling the groove.

The invention relates to a lighting system for a motor vehicle. The lighting system includes a first lighting device with a plurality of separately controllable first light-emitting pixels and two second lighting devices, each of which can be arranged laterally on the first lighting device and each of which has a plurality of separately controllable second light-emitting pixels. According to the invention, at least one light-emitting pixel of the second light-emitting pixels has a second pixel size that is larger than the first pixel size of at least one light-emitting pixel of the first light-emitting pixels. The invention also relates to a motor vehicle.

Embodiments provide a quantum dot composition, a display device produced from the quantum dot composition, and a method for manufacturing the quantum dot composition. The quantum dot composition includes a scatterer, a first quantum dot including a first core, a second quantum dot including a second core that is different from the first core, a first ligand bonded to a surface of the first quantum dot, a second ligand bonded to the surface of a second quantum dot, and a scatterer ligand bonded to a surface of the scatterer, wherein each of the first ligand and the second ligand each makes a chemical bond to the scatterer ligand.

A lighting-board packaging structure includes a circuit substrate, an LED chip, a diffuser structure, a black light-transmissive layer, a haze layer, and an anti-reflection layer. The LED chip is disposed on the circuit substrate by a chip-on-board process and emits a color light. The diffuser structure has two types of scattering particles doped therein and covers the LED chip for homogenizing and diffusing the color light. A doping concentration of each of the two types of scattering particles in the diffuser structure is not greater than 10%. The black light-transmitting layer is stacked on the diffuser structure to reduce reflection of an ambient light incident to the lighting-board packaging structure. The haze layer is stacked on the black light-transmissive layer for scattering the ambient light. The anti-reflection layer is stacked on the haze layer for allowing the ambient light to enter.

A light-emitting array includes a semiconductor LED structure, multiple outcoupling structures, multiple independent first electrical contacts, and second electrical contact(s). The LED structure extends contiguously over the array. The second electrical contacts are in electrical contact with the second semiconductor layer. Each outcoupling structure is a protruding portion of the second semiconductor layer. Each first electrical contact includes a circumscribed electrode layer opposite a corresponding outcoupling structure. Each outcoupling structure and corresponding first electrical contact define a corresponding discrete, circumscribed pixel region within the contiguous area of the array, each pixel region separate from the others. Some light emitted in the pixel region is collected or redirected by the outcoupling structure to exit the outcoupling structure and propagate away from the array.