A light emitting device includes a substrate and a plurality of light emitting components. The substrate has a plurality of accommodation recesses. The light emitting components are disposed in the accommodation recesses. The light emitting components include a die, a wavelength converting colloid, and a rooflike optic component apiece. The die can emit light and are disposed in accommodation recess. The die is perpendicularly projected onto the substrate to form a first orthogonal projection region. The wavelength converting colloid fills the accommodation recess and covers the die. The wavelength converting colloid has a convex surface. The rooflike optic component is disposed on the convex surface. The rooflike optic component is perpendicularly projected onto the substrate to form a second orthogonal projection region. The area of the first orthogonal projection region is less than the area of the second orthogonal projection region.

A wavelength conversion device and a manufacturing method thereof are provided. The wavelength conversion device includes a wavelength conversion module including a carrier, a first light-blocking layer, a second light-blocking layer, a filter layer, a wavelength conversion layer, and a protective layer. The carrier has a first surface and a second surface opposite the first surface. The first light-blocking layer is disposed on the first surface and has a first opening. The second light-blocking layer is disposed on the second surface and has a second opening. The filter layer is disposed on the second surface and in the second opening. The wavelength conversion layer is disposed on the filter layer. The protective layer is disposed on the second light-blocking layer. The width of the second opening of the second light-blocking layer is greater than the width of the first opening of the first light-blocking layer.

A light emitting device comprises: a plurality of light emitters; a plurality of light propagating units, each being associated with a group of light emitters and comprising: a waveguide for coupling in light from different light emitters at different locations of an in-coupling end, wherein the waveguide is a multimode waveguide for propagating light in dependence of the characteristics of the light for combining the light emitted by the light emitters at a transmitting end; a funnel element with a smaller cross-section at a receiving end than at an output end, wherein the receiving end is arranged to couple the light at the transmitting end into the funnel element for propagating the light to the output end for output of emitted light being a combination of light of the different characteristics.

A light-emitting substrate includes a substrate, light-emitting devices, a color conversion layer and a first reflective layer. The substrate has a first surface and a second surface that are opposite to each other; the second surface of the substrate is provided with a second recess therein. The light-emitting devices are disposed on the first surface of the substrate; a light-emitting device includes a light exit region. The color conversion layer is disposed on a side of the light-emitting device toward the second surface. The color conversion layer is located in the second recess, and an orthographic projection of the light exit region of the light-emitting device on the substrate is located within a range of the color conversion layer on the substrate. The first reflective layer is disposed on a side of the light-emitting device away from the substrate and covers at least the light-emitting device.

Light-emitting diode (LED) devices and more particularly lens structures for LED chips in LED packages are disclosed. Lens structures include complex shapes for achieving various emission patterns in LED packages. Complex lens shapes include arrangements of multiple lenses within a same LED package. A first lens is arranged on an LED chip with a self-forming shape, followed by a second lens that encapsulates the first lens. The self-forming shape of the first lens provides the ability to have lens widths that taper inward and depressions positioned relative to the underlying LED chip. Combinations of shapes for the first and second lenses may be configured to collectively provide tailored light emission profiles in corresponding LED packages.

A colour conversion resonator system, comprising: a first partially reflective region configured to transmit light of a first primary peak wavelength and to reflect light of a second primary peak wavelength; a second partially reflective region configured to at least partially transmit light of the first and second primary peak wavelengths and to reflect light of a third primary peak wavelength; a third partially reflective region configured to at least partially reflect light with the third primary peak wavelength; a first colour conversion resonator cavity arranged to receive input light with the first primary peak wavelength through the first partially reflective region and to convert at least some of the light of the first primary peak wavelength to provide light of the second primary peak wavelength, wherein the first colour conversion resonator cavity is arranged such that the second primary peak wavelength resonates in the first colour conversion resonator cavity and resonant light with the second primary peak wavelength is output through the second partially reflective region; and a second colour conversion resonator cavity arranged to receive input light comprising the second primary peak wavelength through the second partially reflective region and to convert at least some of the second primary peak wavelength to provide light of the third primary peak wavelength, wherein the second colour conversion resonator cavity is arranged such that the third primary peak wavelength resonates in the second colour conversion resonator cavity and resonant light with the third primary peak wavelength is output through the third partially reflective region, wherein the first colour conversion resonator cavity and the second resonator cavity are arranged partially to overlap to provide a non-overlapping portion and an overlapping portion thereby to define a first light emitting surface and a second light emitting surface respectively, wherein the first light emitting surface is arranged to provide resonant light of the second primary peak wavelength and the second light emitting surface is arranged to provide resonant light of the third primary peak wavelength.

A display module includes: a substrate, a first dielectric layer, a second dielectric layer and a plurality of color filters. The substrate is disposed with a plurality of light-emitting diodes (LEDs) thereon. The LEDs have a non-smooth upper surface. The first dielectric layer is located on the substrate and surrounding the LEDs. The first dielectric layer is filled between the substrate and the second dielectric layer, and a refractive index of the second dielectric layer is greater than a refractive index of the first dielectric layer. The color filters are located on a side of the second dielectric layer opposite to the first dielectric layer.

A light emitting apparatus including: a substrate; a light-emitting source disposed on the substrate and configured to emit light; and a light-absorbing filler that absorbs light such that when an output spectrum is calculated based on a spectrum of light emitted from the light-emitting source and a preset setting function, a ratio of an area of a specific reference wavelength range in the output spectrum to an area of an entire wavelength range in the output spectrum is less than or equal to a threshold value.

A method for manufacturing a light-emitting device includes: providing a structure including: a plurality of light-emitting elements each having a light-emitting surface, and a support member disposed at least between the plurality of light-emitting elements and supporting the plurality of light-emitting elements; disposing, on the structure, a mask member covering the support member between the plurality of light-emitting elements, the mask member defining a plurality of openings each positioned above a corresponding one of the light-emitting surfaces of the plurality of light-emitting elements; disposing a plurality of wavelength conversion members in the plurality of openings; and after disposing the plurality of wavelength conversion members, removing the mask member and the support member between the plurality of light-emitting elements.

A light emitting device includes: a support defining first and second recesses partitioned by a wall, an area of a first bottom surface of the first recess is greater than a second bottom surface of the second recess; first and second light emitting elements in the first recess; a third light emitting element in the second recess; a first light transmissive member apart from the third light emitting element in the first recess, including a first wavelength conversion member having an emission peak wavelength longer than the first light emitting element, and overlapping the first and second light emitting elements; and a second light transmissive member located in the second recess and overlapping the third light emitting element.

The first to third light emitting elements are drivable independently.

The emission peak wavelength of the first light emitting element is longer than the second and third light emitting elements.