Disclosed are apparatus and methods for optical interconnections that include the integration of a photonics die (pDie) and an electronic die (eDie) with a socket layer, waveguides and fiber connectors to enable high bandwidth communications. In one embodiment, an exemplary optical interconnect device includes an electronic die coupled to a photonics die and integrated with a substrate, a socket, a board, a pair of micro-lenses and a mirror coupled to a waveguide, which can be embedded in the board. In another embodiment, the waveguide is embedded in a socket layer and coupled to a fiber connector. In these embodiments, the exemplary optical interface device can be coupled one more other optical interconnect devices via a waveguide array and/or a fiber array.

Presented are apparatus, systems and methods for creating tuned color emissions, from lighting and displays, that can be electronically controlled to select a desirable spectrum of wavelengths safer for human vision, for optimal color reproduction, for energy/brightness efficiency, and more. Apparatus including light emitting chips, materials, package design, electronic control devices and circuits, lights, light-fixtures, display panels, visual computing devices and systems, are disclosed. An embodiment is described which is capable of operating in modes, where eye-safe colors are rendered with minimal harmful wavelengths, as well as at least one mode of operation favoring color rendering, and brightness configurations. An embodiment is operable to deliver a paper-like black-on-white viewing experience, in both night-time and day-time operating modes, with reduced high-energy blue-wavelength light spectra. In one embodiment, the light-emitter, controller, display and system are operable to switch between these modes of operation.

Active control of light emitting diodes (LEDs) and LED packages within LED displays is disclosed. LED packages are disclosed that include a plurality of LED chips that form at least one LED pixel for an LED display. Each LED package may include an active electrical element that is configured to receive a control signal and actively maintain an operating state, such as brightness or grey level while other LED packages are being addressed. Active electrical elements may include active circuitry that includes one or more of a driver device, a signal conditioning or transformation device, a memory device, a decoder device, an electrostatic discharge (ESD) protection device, a thermal management device, and a detection device, among others. In this regard, each LED pixel of an LED display may be configured for operation with active matrix addressing.

A light-emitting diode package structure includes a heat dissipation substrate, a redistribution layer, and multiple light-emitting diodes. The heat dissipation substrate includes multiple copper blocks and a heat-conducting material layer. The copper blocks penetrate the heat-conducting material layer. The redistribution layer is disposed on the heat dissipation substrate and electrically connected to the copper blocks. The light-emitting diodes are disposed on the redistribution layer and are electrically connected to the redistribution layer. A side of the light-emitting diodes away from the redistribution layer is not in contact with any component.

A display tile structure includes a tile layer with opposing emitter and backplane sides. A light emitter having first and second electrodes for conducting electrical current to cause the light emitter to emit light is disposed in the tile layer. First and second electrically conductive tile micro-wires and first and second conductive tile contact pads are electrically connected to the first and second tile micro-wires, respectively. The light emitter includes a plurality of semiconductor layers and the first and second electrodes are disposed on a common side of the semiconductor layers opposite the emitter side of the tile layer. The first and second tile micro-wires and first and second tile contact pads are disposed on the backplane side of the tile layer.

A display device comprises a first substrate, a first power bottom line on the first substrate, a second substrate on the first power bottom line, the second substrate having a first power connection hole to expose the first power bottom line, and a pixel driving unit including a plurality of switching elements on the second substrate.

A display device comprises a first substrate, a first power bottom line on the first substrate, a second substrate on the first power bottom line, the second substrate having a first power connection hole to expose the first power bottom line, and a pixel driving unit including a plurality of switching elements on the second substrate.

A light-emitting device includes a semiconductor epitaxial structure including a first semiconductor layer, an active layer, and a second semiconductor layer sequentially stacked in such order in a stacking direction, and including a plurality of through holes. The through holes extend downwardly in a direction from the second semiconductor layer to the first semiconductor layer. The through holes expose a portion of a surface of the first semiconductor layer. The light-emitting device has an ampacity. Each of the through holes has a first radius. A ratio of the first radius to the ampacity ranges from 0.1 to 0.4. A light-emitting apparatus including the light-emitting device is also provided.

The present invention relates to a composition based on a polyamide matrix having a high thermal conductivity and comprising specific proportions of alumina and of graphite and also a flame-retardant system. This composition may in particular be used for producing components for lighting devices comprising light-emitting diodes.

Disclosed are a light emitting device package. The light emitting device package includes a body having recess; a first lead frame including a first and second portions on a first region of the body; a second lead frame including a third and fourth portions on a second region of the body; a third lead frame between the first and second lead frame. The body has a length of the first direction greater than a width of the second direction, wherein the second portion of the first lead frame extends toward the second lead frame and has a small width, and wherein the fourth portion of the second lead frame extends toward the first lead frame. A first light emitting device is disposed on the first portion of the first lead frame and a second light emitting device is disposed on the third portion of the second lead frame.