A light-emitting device includes a plurality of light-emitting elements, a plurality of light-transmissive members, a covering member, and a plurality of pairs of electrodes. The light-emitting elements are arranged in a plurality of columns and a plurality of rows. The covering member integrally covers lateral surfaces of the light-emitting elements. The pairs of electrodes are arranged at a lower surface of the light-emitting device. The pairs of electrodes include first and second pairs of electrodes aligned along a column direction so that the electrodes of the same polarity among the first and second pairs of electrodes are aligned along the column direction, and a third pair of electrodes arranged adjacent to the first pair of electrodes in a row direction so that one of the third pair of electrodes and one of the first pair of electrodes facing each other in the row direction have the same polarity.

A light emitting device includes: a base member having a first surface including a first region; a first electric terminal including a first pin hole, the first pin hole penetrating the base member along a thickness direction of the base member; a second electric terminal including a second pin hole, the second pin hole penetrating the base member along the thickness direction; a first frame provided on the base member and surrounding the first region; a plurality of light emitting elements provided on the base member in the first region; a light-transmissive first member provided inward of the first frame, and covering the plurality of light emitting elements; and a protective element positioned between the base member and the first frame in the thickness direction. When viewed in a direction from the first pin hole toward the second pin hole, the protective element is positioned between the plurality of light emitting elements and the first pin hole and between the plurality of light emitting elements and the second pin hole.

A light emitting component comprising a light source (10) for emitting blue light (aa), a first layer (1) comprising a red phosphor, and a second layer (2) comprising luminescent crystals (20). Upon absorption of the light emitted by the light source (10), the luminescent crystals (20) emit light of a wavelength in the green light spectrum (cc). The first layer (1) is arranged adjacent to the light source (10). The second layer (2) is arranged remotely from the first layer (1).

A light emitting diode (LED) pixel for a display including a first LED stack having a first well layer, a second LED stack disposed on the first LED stack and having a second well layer, a third LED stack disposed on the second LED stack and having a third well layer, a first electrode disposed on the first LED stack and in ohmic contact with the first LED stack, a second electrode disposed on the second LED stack and in ohmic contact with a surface of the second LED stack, and a third electrode in ohmic contact with a surface of the third LED stack, in which the first well layer includes at least one base material different from that of the second well layer.

An optoelectronic semiconductor component includes a primary light source including a carrier and a semiconductor layer sequence mounted thereon and configured to generate primary light, and at least one conversion unit of at least one semiconductor material adapted to convert the primary light into at least one secondary light, wherein the semiconductor layer sequence and the converter unit are separate elements, the semiconductor layer sequence includes a plurality of pixels, the pixels are configured to be controlled electrically independently of each other, the carrier includes a plurality of control units configured to drive the pixels, all pixels of a first group are free of a conversion unit and are configured to emit the primary light, all pixels of a second group of pixels include exactly one conversion unit each and are configured to emit the at least one secondary light.

A light emitting device according to an embodiment of the present disclosure includes multiple light emitting elements. The light emitting elements each include a semiconductor layer including a first conductive layer, a light emitting layer, and a second conductive layer that are stacked in this order. The first conductive layer has a light emitting surface. The light emitting elements further includes a first electrode in contact with the second conductive layer, and a second electrode in contact with the first conductive layer. The light emitting elements share the first conductive layer and the second electrode with each other. The light emitting elements each include a current path in the first conductive layer from a portion opposed to the first electrode to a portion opposed to the second electrode. The first conductive layer has one or multiple trenches in a region between two current paths adjacent to each other. The light emitting device further includes a light blocking section provided in the one or multiple trenches.

A method to produce a light-emitting device package includes mounting junctions on pads of a metalized substrate, where the junctions are at least partially electrically insulated from each other, and forming wavelength converters, where each wavelength converter is located over a different junction and separated by a gap from neighboring wavelength converters.

A light source module and a lighting device using the light source module. The light source module includes a first light-emitting element and a packaging part covering the first light-emitting element. The packaging part includes a first additional luminous body, a second additional luminous body, and a third additional luminous body, the light emitted by each luminous body is mixed into day white light, which is used as the emitted light of the light source module. The light source module provided by the present disclosure provides a cold white LED (5700K) light source with high luminous efficiency, high CS values and high color rendering by controlling the ratio of luminous energy of different wavelength ranges in the total luminous energy.

A method for inkjet printing includes setting a target volume and a target concentration of ink discharged to a pixel, measuring a volume and a concentration of a liquid drop for each of nozzles, selecting first nozzle groups for achieving the target volume, from a volume pool of the liquid drop for each of the nozzles, selecting second nozzle groups for achieving the target concentration, from the first nozzle groups, selecting recipes by combining brightness trend lines, from the second nozzle groups, performing a printing simulation for each of the recipes to select a final recipe, and performing inkjet printing by using the final recipe.

The display device comprises a light emitting element layer on a substrate and configured to emit light, a wavelength control layer on the light emitting element layer and configured to convert a wavelength of the light, a color filter layer on the wavelength control layer, and an anti-reflection layer on the color filter layer, wherein the anti-reflection layer includes a first inorganic layer on the color filter layer, a second inorganic layer on the first inorganic layer, and a coating layer on the second inorganic layer and including a dye.