A light-emitting substrate includes a substrate, a plurality of light-emitting devices and a reflective layer that are disposed on a side of the substrate; the reflective layer has a plurality of openings, the plurality of openings include a plurality of first openings, and a light-emitting device is located in a first opening; the reflective layer includes a plurality of first reflective portions and a second reflective portion connecting any two adjacent first reflective portions; a first reflective portion, corresponding to the light-emitting device, is located on at least one side of the light-emitting device; a thickness of the first reflective portion is less than a thickness of the second reflective portion.

This application provides a flexible display screen and an electronic device. The flexible display screen includes a first film layer, a second film layer, a third film layer, and a connecting piece. The first film layer, the second film layer, and the third film layer are stacked, the third film layer is disposed between the first film layer and the second film layer. The first film layer is provided with a first connecting hole. The second film layer is provided with a second connecting hole. The third film layer is provided with a third connecting hole. The first connecting hole, the second connecting hole, and the third connecting hole communicate with each other. The connecting piece is filled in the first connecting hole, the second connecting hole, and the third connecting hole to connect the first film layer, the second film layer, and the third film layer.

This application provides a flexible display screen and an electronic device. The flexible display screen includes a first film layer, a second film layer, a third film layer, and a connecting piece. The first film layer, the second film layer, and the third film layer are stacked, the third film layer is disposed between the first film layer and the second film layer. The first film layer is provided with a first connecting hole. The second film layer is provided with a second connecting hole. The third film layer is provided with a third connecting hole. The first connecting hole, the second connecting hole, and the third connecting hole communicate with each other. The connecting piece is filled in the first connecting hole, the second connecting hole, and the third connecting hole to connect the first film layer, the second film layer, and the third film layer.

This LED panel comprising: a base substrate including circuit wiring; a plurality of light-emitting diodes disposed to form an array on the base substrate; a side optical layer located laterally to the plurality of light-emitting diodes and including a diffusing agent; and a plurality of upper optical layers respectively located on top of the plurality of light-emitting diodes and including a diffusing agent can provide uniform light in all directions through uniform light distribution by reducing color difference for different viewing angles that occurs due to the structure of a semiconductor light-emitting diode.

This LED panel comprising: a base substrate including circuit wiring; a plurality of light-emitting diodes disposed to form an array on the base substrate; a side optical layer located laterally to the plurality of light-emitting diodes and including a diffusing agent; and a plurality of upper optical layers respectively located on top of the plurality of light-emitting diodes and including a diffusing agent can provide uniform light in all directions through uniform light distribution by reducing color difference for different viewing angles that occurs due to the structure of a semiconductor light-emitting diode.

An aspect is to provide a fluid sterilization device that appropriately causes ultraviolet light emitted from a light source (light emitting element) to enter a flow path pipe to enhance sterilizing ability. The fluid sterilization device can include a cylindrical flow path pipe having a side peripheral wall, and a light source unit including a light emitting element disposed on the side peripheral wall and a substrate on which the light emitting element is mounted, wherein a notched region along a longitudinal direction of the flow path pipe is formed in the side peripheral wall of the flow path pipe, and the light source unit is housed in the notched region. The fluid sterilization device preferably further includes a heat sink that is disposed at a more radially outward position relative to the substrate of the light source unit and that is in contact with an outer surface of the substrate, and a housing that houses the heat sink. The flow path pipe preferably has a through hole at a position in the notched region where the light emitting element faces the notched region, and the fluid sterilization device preferably further includes: an ultraviolet light-transmitting window portion provided in the through hole; and an annular reflector that is housed in the notched region to surround the light emitting element.

An aspect is to provide a fluid sterilization device that appropriately causes ultraviolet light emitted from a light source (light emitting element) to enter a flow path pipe to enhance sterilizing ability. The fluid sterilization device can include a cylindrical flow path pipe having a side peripheral wall, and a light source unit including a light emitting element disposed on the side peripheral wall and a substrate on which the light emitting element is mounted, wherein a notched region along a longitudinal direction of the flow path pipe is formed in the side peripheral wall of the flow path pipe, and the light source unit is housed in the notched region. The fluid sterilization device preferably further includes a heat sink that is disposed at a more radially outward position relative to the substrate of the light source unit and that is in contact with an outer surface of the substrate, and a housing that houses the heat sink. The flow path pipe preferably has a through hole at a position in the notched region where the light emitting element faces the notched region, and the fluid sterilization device preferably further includes: an ultraviolet light-transmitting window portion provided in the through hole; and an annular reflector that is housed in the notched region to surround the light emitting element.

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 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.

An optoelectronic device, comprising a stack including a plurality of light-emitting diodes disposed at a distance from one another, and a plurality of electrically conductive terminals arranged between the diodes, and a light confinement layer extending over the stack and comprising reflective walls defining between them, spaces located to the right of each diode. Further, the confinement layer includes the porous alumina in at least one of the spaces, the porous alumina having, in at least one space, preferably in at least two of the spaces, even in each space, from among the at least some spaces, at least two open pores on a first face of the confinement layer which is located opposite the stack. The optical crosstalk phenomena are advantageously reduced.