There are provided a backlight assembly (1) and a display device, the backlight assembly (1) includes a light source substrate (10), a microstructure film layer (30) and a backlight film material layer (20); the backlight film material layer (20) is located on a light outgoing side of the light source substrate (10), the microstructure film layer (30) is provided between the light source substrate (10) and the backlight film material layer (20), the microstructure film layer (30) includes a light transmission layer (301) and a microstructure region (302); the microstructure region (302) is provided at an edge position of the microstructure film layer (30). The combination of the microstructure region (302) and the light transmission layer (301) can change, at the edge position, an outgoing angle of all or part of backlight passing through the microstructure region (302), so that all or part of the backlight passing through the microstructure region (302) is deflected from a direction perpendicular to the edge where the microstructure region (302) is located and is refracted away from a center of the microstructure film layer (30), thereby an optical path of the backlight with the changed outgoing angle when passing through the backlight film material layer (20) is increased, more red light and green light are excited, and thus a problem of uneven chromaticity of a bluish edge of the backlight during full screen displaying is solved.

There are provided a backlight assembly (1) and a display device, the backlight assembly (1) includes a light source substrate (10), a microstructure film layer (30) and a backlight film material layer (20); the backlight film material layer (20) is located on a light outgoing side of the light source substrate (10), the microstructure film layer (30) is provided between the light source substrate (10) and the backlight film material layer (20), the microstructure film layer (30) includes a light transmission layer (301) and a microstructure region (302); the microstructure region (302) is provided at an edge position of the microstructure film layer (30). The combination of the microstructure region (302) and the light transmission layer (301) can change, at the edge position, an outgoing angle of all or part of backlight passing through the microstructure region (302), so that all or part of the backlight passing through the microstructure region (302) is deflected from a direction perpendicular to the edge where the microstructure region (302) is located and is refracted away from a center of the microstructure film layer (30), thereby an optical path of the backlight with the changed outgoing angle when passing through the backlight film material layer (20) is increased, more red light and green light are excited, and thus a problem of uneven chromaticity of a bluish edge of the backlight during full screen displaying is solved.

Provided is a light source system, including: a light-emitting module configured to emit first light along a first light path and second light along a second light path; a wavelength conversion device configured to receive the first light and emit excited light with a color different from the first light; and a compensation device configured to guide the second light and adjust its luminous intensity distribution so that the luminous intensity distribution of the second light exiting from the compensation device is substantially identical to the excited light. The compensation device includes a compensation element configured to adjust luminous intensity distribution of a light beam so that an emergent light beam of the compensation element has reduced overall luminous intensity compared with an incident light beam. The second light exiting from the compensation device is combined with the excited light to form third light.

Provided is a light source system, including: a light-emitting module configured to emit first light along a first light path and second light along a second light path; a wavelength conversion device configured to receive the first light and emit excited light with a color different from the first light; and a compensation device configured to guide the second light and adjust its luminous intensity distribution so that the luminous intensity distribution of the second light exiting from the compensation device is substantially identical to the excited light. The compensation device includes a compensation element configured to adjust luminous intensity distribution of a light beam so that an emergent light beam of the compensation element has reduced overall luminous intensity compared with an incident light beam. The second light exiting from the compensation device is combined with the excited light to form third light.

A lighting apparatus includes a light source module, a light passing cover, a prism plate and a surface rim. The light source module includes a light source plate and multiple LED modules mounted on the light source plate. The light passing cover has a first side facing to the multiple LED modules for receiving a light from the multiple LED modules. The prism plate is disposed with more than 50 prism units for diffusing the light passing through the light passing cover from a second side of the light passing cover. The surface rim has a light opening for the light diffused by the prism units to escape from the lighting apparatus.

A lighting apparatus includes a light source module, a light passing cover, a prism plate and a surface rim. The light source module includes a light source plate and multiple LED modules mounted on the light source plate. The light passing cover has a first side facing to the multiple LED modules for receiving a light from the multiple LED modules. The prism plate is disposed with more than 50 prism units for diffusing the light passing through the light passing cover from a second side of the light passing cover. The surface rim has a light opening for the light diffused by the prism units to escape from the lighting apparatus.

A light emitting device (1) comprising at least one LED filament (2) comprising a flexible substrate (3) and a plurality of LED light sources (4) arranged on the flexible substrate (3), and an encapsulation (5a, 5b) encapsulating the plurality of LED light sources (4) and at least a part of one side of the flexible substrate (3), where the at least one LED filament (2) comprises at least one knot (6) in the form of intentional complication in cordage of the at least one LED filament (2), and where the intentional complication in cordage is any one of a fastening made by looping the at least one LED filament (2) on itself or together with a further LED filament and tightening it, and an intentional complication in cordage in which the at least one LED filament (2) is interlaced with at least one further LED filament at right angles to one another.

A light emitting device (1) comprising at least one LED filament (2) comprising a flexible substrate (3) and a plurality of LED light sources (4) arranged on the flexible substrate (3), and an encapsulation (5a, 5b) encapsulating the plurality of LED light sources (4) and at least a part of one side of the flexible substrate (3), where the at least one LED filament (2) comprises at least one knot (6) in the form of intentional complication in cordage of the at least one LED filament (2), and where the intentional complication in cordage is any one of a fastening made by looping the at least one LED filament (2) on itself or together with a further LED filament and tightening it, and an intentional complication in cordage in which the at least one LED filament (2) is interlaced with at least one further LED filament at right angles to one another.

A light emitting device includes: a mounting board; a plurality of light sources positioned on the mounting board; first and second prism array layers stacked with each other; a dichroic layer positioned between the first and second prism array layers and the plurality of light sources; and a wavelength conversion layer positioned between the first and second prism array layers and the dichroic layer.

A light emitting device includes: a mounting board; a plurality of light sources positioned on the mounting board; first and second prism array layers stacked with each other; a dichroic layer positioned between the first and second prism array layers and the plurality of light sources; and a wavelength conversion layer positioned between the first and second prism array layers and the dichroic layer.