Disclosed are a light-emitting device, a manufacturing method thereof, and a display screen. In the light-emitting device, an isolation trench is formed from one side of the first semiconductor layer to one side of the second semiconductor layer. A reflective structure is formed on the side wall of the isolation trench and the first semiconductor layer, which helps to reduce light loss and improving the light output efficiency of the device. The isolation trench does not completely penetrate the second semiconductor layer, so that the second semiconductor layer located on the light output surface side is a continuous and uninterrupted integrated structure, and a surface thereof remains flat so that the transparent conductive layer has a flat structure, improving the overall coverage of the transparent conductive layer. The present invention has no cracks, peeling problems, thus improving the electrical stability of the device and increasing the reliability thereof.

Provided are a light emitting substrate, a method for manufacturing same, and a display apparatus. The light emitting substrate includes a base substrate; a plurality of light emitting units located at a side of the base substrate; a plurality of protective structures located at a side of the plurality of light emitting units facing away from the base substrate; the plurality of protective structures each covers a respective one of the plurality of light emitting units; and a plurality of reflective patterns located at a side of the plurality of protective structures facing away from the plurality of light emitting units; orthographic projections of the plurality of reflective patterns on the base substrate fall within orthographic projections of the plurality of protective structures on the base substrate.

A micro light emitting diode (LED) is provided. The micro LED includes a first light emitting unit and a second light emitting unit disposed on a top of the first light emitting unit. A first electrode of the first light emitting unit is inserted through a groove of the second light emitting unit and electrically connected with a substrate. A third light emitting unit is either shielded by the first light emitting unit or arranged at one side of the first light emitting unit. The first light emitting unit, the second light emitting unit, and the third light emitting unit are connected with a common connection point of the substrate by respective common electrodes. Thus an area of a light emitting surface of the micro LED is further reduced.

A light-emitting substrate has a display region and a peripheral region located on at least one side of the display region, the peripheral region includes a first peripheral region, and the first peripheral region and the display region are spaced apart in a first direction. The light-emitting substrate includes: a substrate; a first conductive layer disposed on the substrate, the first conductive layer including a plurality of signal lines located in the display region; an insulating layer covering the plurality of signal lines; and a second conductive layer disposed on the insulating layer. The insulating layer includes a first insulating layer and a second insulating layer sequentially stacked in a direction away from the substrate; and at least between the first peripheral region and the display region, at least part of edges of the first insulating layer exceeds an edge of the second insulating layer.

A light-emitting device and a display apparatus. The light-emitting device extracts, by means of a light extraction member, light emitted from a side surface (a second light-emitting surface) of a semiconductor light source; the light from the side surface is collected to a top part to be emitted to a wavelength conversion member together with light from a first light-emitting surface; white light is emitted from a top part (a second abutting surface of the wavelength conversion member; and after passing through a light-transmitting layer, the white light is emitted from a top part of the light-transmitting layer that is in the thickness direction thereof and is provided with a light inhibition layer, and the white light from the top part is partially inhibited by the light inhibition layer.

A light-emitting substrate includes a first substrate, a reflective layer and support columns. The reflective layer is disposed on the first substrate and provided with first openings. At least for two of cross-sections, parallel to a place where the first substrate is located, of a first opening, an area of a cross-section relatively proximate to the first substrate is less than an area of a cross-section relatively away from the first substrate. The support columns are located on a side of the reflective layer away from the first substrate and fixed on the first substrate. An orthographic projection of a support column on the first substrate is a first projection, an orthographic projection a minimum cross-section of the cross-sections is a second projection, and the second projection lies within a range of the first projection.

In an LED display device according to an embodiment of the present disclosure, the LED display device comprises a second pixel driving circuit on a substrate, an LED element attached to a region not overlapping the second pixel driving circuit, including a first LED element, a second LED element and a growth substrate, and providing a double light-emitting spectrum, an element fixing layer surrounding the LED element, a first pixel driving circuit on the element fixing layer, and an element protecting layer on the first pixel driving circuit. In addition, the first LED element is controlled by the first pixel driving circuit, and the second LED element is controlled by the second pixel driving circuit. Therefore, the LED display device provides a dual emission spectrum, can realized high luminance and high definition, and can prevent a pixel defect.

A light emitting element includes a first element rod including a first semiconductor layer and an active layer and having a first inclination angle on a side surface; a second element rod on the first element rod and having a second inclination angle on a side surface; a third element rod on the second element rod and having a third inclination angle on a side surface, the second inclination angle being smaller than the first inclination angle and the third inclination angle; a protective layer around one side and an other side of the first element rod, a side of the second element rod, and a side of the third element rod; and a contact electrode around the protective layer and electrically connected to the first semiconductor layer.

A display device includes a bank including an opening defining pixels, light emitting elements disposed in the pixels, a color conversion layer disposed on the light emitting elements in the opening, a capping layer overlapping the color conversion layer, and a color filter layer disposed on the capping layer. The color filter layer includes a low refractive material.

A light-emitting element, a light-emitting device and a display device are provided, which relate to the technical filed of semiconductor devices. The light-emitting element is a flip-chip light-emitting diode, and has a light-emitting surface and a backlight surface respectively located on outermost sides of the flip-chip light-emitting diode and opposite to each other; the flip-chip light-emitting diode includes an epitaxial staked layer configured to generate predetermined light; and a light-splitting layer disposed on a side of the epitaxial stacked layer proximate to the light-emitting surface; the light-splitting layer is configured to reflect predetermined light with an incident complementary angle of a first angle, transmit predetermined light with an incident complementary angle of a second angle, and reflect predetermined light with an incident complementary angle of a third angle; and the first angle is smaller than the second angle, and the second angle is smaller than the third angle.