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 device includes a substrate; a frame disposed on an upper surface of the substrate; a first light-emitting element disposed on the upper surface of the substrate and within a first region along an inner periphery of the frame; a second light-emitting element disposed on the upper surface of the substrate and within a second region surrounded by the first region; a wall part disposed on the upper surface of the substrate, contacting the frame, and extending from the inner periphery of the frame toward the second region; a wavelength conversion member disposed on the upper surface of the substrate and within a region surrounded by the frame, and covering the wall part, the first light-emitting element, and the second light-emitting element; and a circuit including a first drive circuit that drives the first light-emitting element and a second drive circuit that drives the second light-emitting element.

A light-emitting device includes a substrate; a first frame disposed on the substrate; a second frame disposed on the substrate and inward of the first frame; a first light-emitting element disposed on the substrate and between the first and second frames; a second light-emitting element disposed on the substrate and inward of the second frame; a first wavelength conversion member disposed on the substrate and within a region surrounded by the first frame, and covering the second frame, the first light-emitting element, and the second light-emitting element; and a circuit including a first drive circuit that drives the first light-emitting element and a second drive circuit that drives the second light-emitting element. The first wavelength conversion member includes a phosphor-containing portion, phosphor particles are present predominantly on a substrate side of the phosphor-containing portion, and a height of the second frame is less than a thickness of the phosphor-containing portion.

A display device capable of more efficiently taking out light transmitted through a wavelength conversion layer is provided. The display device includes, at least, a light source provided in each of a first pixel and a second pixel and configured to emit light of a first wavelength, a first wavelength conversion layer formed in the first pixel and configured to convert the light of the first wavelength into light of a second wavelength, a second wavelength conversion layer formed in the second pixel and configured to convert the light of the first wavelength into light of a third wavelength different from the second wavelength, a first color filter provided in the first pixel and configured to selectively transmit the light of the second wavelength, a second color filter provided in the second pixel and configured to selectively transmit the light of the third wavelength, and a plurality of nano members on which the light of the second wavelength and the light of the third wavelength are incident, and wherein the plurality of nano members include a high refractive index dielectric, and wherein the plurality of nano members are arranged in the first pixel in a first periodic distance, and wherein the plurality of nano members are arranged in the second pixel in a second periodic distance different from the first periodic distance.

The invention relates to a method for manufacturing an optoelectronic device (1) with a diode array (20), including the following steps: producing an electret layer (30) having conversion zones (Zc) separated two-by-two by a spacing zone (Ze) with zero surface potential, where each conversion zone (Zc) is formed of a plurality of so-called polarized elementary zones (32) with non-zero surface potential, spaced apart two-by-two by a so-called non-polarized elementary zone (33) with zero surface potential, such that the conversion zone (Zc) has a structured surface potential; producing color conversion pads (P), by placing the electret layer (30) in contact with a colloidal solution(S) containing photoluminescent particles (p).

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.

A semiconductor light emission element includes: a substrate having insulating or semi-insulating properties; a light-emitting functional layer where a first semiconductor layer having a first polarity, a light emission layer, and a second semiconductor layer having a second polarity are sequentially laminated on the substrate; an insulating film covering the light-emitting functional layer; a first pad electrode and a second pad electrode electrically connected to the first semiconductor layer and the second semiconductor layer, respectively, and at least one intermediate pad electrically insulated from the light-emitting functional layer, the first, second, and at least one intermediate pads being provided on the insulating film; and a pad separation groove separating each of the first pad electrode, the second pad electrode, and the intermediate pad, and exposing the insulating film.

A semiconductor light emission element includes: a substrate having insulating or semi-insulating properties; a light-emitting functional layer where a first semiconductor layer having a first polarity, a light emission layer, and a second semiconductor layer having a second polarity are sequentially laminated on the substrate; an insulating film covering the light-emitting functional layer; a first pad electrode and a second pad electrode electrically connected to the first semiconductor layer and the second semiconductor layer, respectively, and at least one intermediate pad electrically insulated from the light-emitting functional layer, the first, second, and at least one intermediate pads being provided on the insulating film; and a pad separation groove separating each of the first pad electrode, the second pad electrode, and the intermediate pad, and exposing the insulating film.

The present invention relates to a LED filament (1) having a longitudinal extension (L) and a transverse extension (W) being perpendicular to the longitudinal extension (L), the LED filament (1) comprising: at least one first LED filament portion (2) extending in the longitudinal extension (L) of the LED filament (1) and comprising a plurality of first LED dies (3) adapted to emit first LED light, the first LED dies (3) being encapsulated by a first encapsulant (4) comprising a luminescent material; at least one second LED filament portion (5) parallel to the first LED filament portion (2) and comprising a plurality of red, green, and blue LED dies (6, 7, 8) adapted to emit second LED light comprising at least one of red, green and blue light; wherein the plurality of red, green, and blue LED dies (6, 7, 8) are arranged in rows running in the transverse direction (W) and spaced apart in the longitudinal direction (L), wherein each row comprises at least two LED dies, and wherein at least one of the red LED die and the green LED die (6, 8) is arranged between each blue LED die (7) and the first LED filament portion (2) in order to reduce or prevent optical cross-talk between the first encapsulant (4) and the second LED light.

A light emitting diode (LED) module includes a substrate, the substrate includes a light emitting region, the light emitting region includes a plurality of light emitting sub-regions, and a first light emitting sub-region and a second light emitting sub-region are provided symmetrically about a symmetry axis to form a group of symmetric light emitting regions; or the light emitting region includes a first light emitting region and a second light emitting region, and the first light emitting region and the second light emitting region are provided symmetrically about a symmetry axis; an LED array, provided within the light emitting region.