An embodiment modular light-emitting diode (LED) display panel includes attachment points for use in attachment as part of a multi-panel modular LED display, a printed circuit board including a first side and an opposite second side, and a plastic casing attached to the opposite second side of the printed circuit board. A perimeter of the plastic casing is substantially rectangular and has a height and a width. The modular LED display panel further includes a display surface including a plurality of LEDs arranged as pixels and attached to the first side of the printed circuit board. The pixels are arranged in a rectangular array including at least fifty pixels. Each of the pixels of the rectangular array is spaced from each respective adjacent pixel of the rectangular array by a pitch. The pitch is a predetermined constant number. The pitch does not depend on the height and the width.

The present disclosure relates to a display panel and a method for manufacturing a display panel. The display panel includes a first substrate having a first wiring, a second substrate having a second wiring, the first substrate, and the second substrate being laminated on each other to form a laminated structure, and a third wiring located on a side surface of the laminated structure, wherein the third wiring connects the first wiring and the second wiring.

The disclosure provides a portable light. The portable light includes a housing having a front surface, a rear surface, and an internal space for receiving electronic components and a battery. The portable light also includes a chip-on-board (COB) assembly. The COB assembly includes a substrate, a matrix of individual light emitting diode (LED) chips mounted to the substrate, and an outer coating covering the matrix of LED chips. The front surface of the housing is curved in one direction and the COB assembly is correspondingly curved and mounted to the front surface, such that individual LED chips are positioned about the curve and orientated to direct light outwardly about the curve to provide a collective beam angle greater than 220 degrees. The portable light further includes a front lens cover to protect the COB assembly.

Semiconductor light emitting device includes: substrate including main and back surfaces, first and second side surfaces, and bottom and top surfaces, wherein main surface includes first to fourth sides; first main surface electrode on main surface and including first base portion contacting the sides of the main surface, and die pad connected to first base portion; second main surface electrode disposed on the main surface and including second base portion contacting first and third sides of the main surface, and wire pad connected to second base portion; semiconductor light emitting element including first electrode pad and mounted on die pad; wire connecting first electrode pad and wire pad; first insulating film covering portion between first base portion and die pad; second insulating film covering portion between second base portion and wire pad and having end portions contacting main surface; and light-transmitting sealing resin.

A lighting device includes a substrate having a plurality of flat portions and a non-flat portion disposed between the flat portions, a plurality of light emitting sources disposed on the substrate, a fluorescent substrate layer covering one or more light emitting sources and converting a wavelength of a light from the light emitting source, and a connection line disposed on the substrate and electrically connecting the light emitting sources adjacent to each other between the adjacent light emitting sources. The substrate has a first end and a second end are arranged at different distance from a central axis.

An LED panel light includes a flexible base film, a plurality of circuits arranged on the flexible base film and a plurality of LED lamp beads arranged on the flexible base film, each circuit is connected with at least one LED lamp bead and is provided with at least two mutually parallel conductive wires. The conductive wire consists of a plurality of secondary conductive wires, and a plurality of the secondary conductive wires form a mesh. A method of making a LED panel light includes the following specific steps: S1: providing a flexible base film; S2: manufacturing a plurality of mesh-type conductive wires on the flexible base film by using a mould with circuit patterns of LED panel light; conductive wires forming a circuit, and a plurality of the circuits forming an LED panel light circuit; S3: connecting LED lamp beads with the conductive wires in the circuits.

A circuit board, a light-emitting diode (LED) retrofit lamp for use with the circuit board and a method of manufacturing an LED retrofit lamp are described herein. A circuit board includes a body part and two longitudinal fingers symmetrically extending from the body part in a longitudinal direction of the LED retrofit lamp.

An optoelectronic assembly comprises at least two electrical contacts on a surface of an optoelectronic component for supplying electrical energy for generating electromagnetic radiation, and at least two meander-shaped contact lugs, each of which comprises a first and a second section. The first section in each case of the at least two meander-shaped contact lugs is coupled to one of the at least two electrical contacts. The second section in each case of the at least two meander-shaped contact lugs comprises a fastening element which is designed to go into a mechanical linkage to a fiber structure of a carrier and to create an electrical connection to the first section.

A battery charger may include a printed circuit board (PCB) having a first portion supporting alternating current (AC) electrical components and a second portion supporting direct current (DC) electrical components; an indicator including a light-emitting diode (LED) supported on the first portion of the PCB and operable to emit light; and an isolating member positioned on the first portion between the AC electrical components and the LED. A trace on the PCB may be electrically connected to the second portion of the PCB, the trace extending from the second portion and along the first portion, and the LED may be electrically connected to and receiving DC power through the trace, the LED being selectively positioned along a length of the trace. The LED may be positioned more than about 8 mm from the AC electrical components.

A modular user interface unit for an appliance is provided. The modular user interface unit includes an upper film layer comprising a conductive polymer and a plurality of electrodes. The modular user interface unit also includes a circuit board with a microcontroller thereon. The circuit board is electrically coupled to the upper film layer by a conductive polymer connector. The microcontroller is configured to receive raw capacitance data from the plurality of electrodes and to detect a touch based on the raw capacitance data.