Abstract: A wavelength conversion member, for a backlight, is provided. The wavelength conversion member includes a stack of a plurality of resin layers, with at least one of the plurality of resin layers containing quantum dots. The plurality of resin layers is integrally molded through co-extrusion, and forms a three-layer structure comprising a middle layer containing the quantum dots and upper and lower layers that do not contain the quantum dots. The upper layer and the lower layer are respectively on an upper side and a lower side of the middle layer. The upper and lower layers each contain a light scattering agent. Each of the plurality of resin layers is directly joined together with a bonding layer at an interface between the middle layer and the upper layer and not at an interface between the middle layer and the lower layer.

Abstract: A wavelength conversion member, for a backlight, is provided. The wavelength conversion member includes a stack of a plurality of resin layers, with at least one of the plurality of resin layers containing quantum dots. The plurality of resin layers is integrally molded through co-extrusion, and forms a three-layer structure comprising a middle layer containing the quantum dots and upper and lower layers that do not contain the quantum dots. The upper layer and the lower layer are respectively on an upper side and a lower side of the middle layer. The upper and lower layers each contain a light scattering agent. Each of the plurality of resin layers is directly joined together with a bonding layer at an interface between the middle layer and the upper layer and not at an interface between the middle layer and the lower layer.

Abstract: To provide a quantum dot-containing resin sheet or film, a method for producing the same, and a wavelength conversion member that can, in particular, solve the problem of aggregation of the quantum dots and the problem with the use of a scattering agent, suppress a decrease in light conversion efficiency, and improve the light conversion efficiency of a resin molded product containing quantum dots. The quantum dot-containing resin sheet or film of the present invention includes a stack of a plurality of resin layers, at least one of the resin layers containing quantum dots, and the plurality of resin layers is integrally molded through co-extrusion.

Abstract: To provide a quantum dot-containing resin sheet or film, a method for producing the same, and a wavelength conversion member that can, in particular, solve the problem of aggregation of the quantum dots and the problem with the use of a scattering agent, suppress a decrease in light conversion efficiency, and improve the light conversion efficiency of a resin molded product containing quantum dots. The quantum dot-containing resin sheet or film of the present invention includes a stack of a plurality of resin layers, at least one of the resin layers containing quantum dots, and the plurality of resin layers is integrally molded through co-extrusion.

Abstract: To provide a quantum dot-containing resin sheet or film, a method for producing the same, and a wavelength conversion member that can, in particular, solve the problem of aggregation of the quantum dots and the problem with the use of a scattering agent, suppress a decrease in light conversion efficiency, and improve the light conversion efficiency of a resin molded product containing quantum dots. The quantum dot-containing resin sheet or film of the present invention includes a stack of a plurality of resin layers, at least one of the resin layers containing quantum dots, and the plurality of resin layers is integrally molded through co-extrusion.

Abstract: To provide a quantum dot-containing resin sheet or film, a method for producing the same, and a wavelength conversion member that can, in particular, solve the problem of aggregation of the quantum dots and the problem with the use of a scattering agent, suppress a decrease in light conversion efficiency, and improve the light conversion efficiency of a resin molded product containing quantum dots. The quantum dot-containing resin sheet or film of the present invention includes a stack of a plurality of resin layers, at least one of the resin layers containing quantum dots, and the plurality of resin layers is integrally molded through co-extrusion.

Abstract: An LED light emitting device 5 as an example of a light emitting device utilizing a semiconductor to which the present invention is applied includes a package 10, a semiconductor light emitting element 200, a first sealing layer 50, and a second sealing layer 60. The semiconductor light emitting element 200 includes a p-n functioned semiconductor layer, and serves as a light source that emits light in accordance with application of a voltage to the semiconductor layer. The semiconductor light emitting element 200 is connected to power supply terminals 201 that supply a current.

Abstract: An LED light emitting device 5 as an example of a light emitting device utilizing a semiconductor to which the present invention is applied includes a package 10, a semiconductor light emitting element 200, a first sealing layer 50, and a second sealing layer 60. The semiconductor light emitting element 200 includes a p-n functioned semiconductor layer, and serves as a light source that emits light in accordance with application of a voltage to the semiconductor layer. The semiconductor light emitting element 200 is connected to power supply terminals 201 that supply a current.