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LED

Light Emitting Diodes (LEDs) continue to lead the charge in energy-efficient lighting and displays. Recent advancements in OLEDs, microLEDs, and miniLEDs have revolutionized applications in consumer electronics, automotive lighting, and smart devices. With a focus on sustainability and cost efficiency, LED technology is driving the transition to more eco-friendly, long-lasting solutions in television screens, lighting systems, and automotive headlamps. As demand for high-brightness LEDs and smart lighting grows, LED innovations are creating more immersive, energy-efficient solutions for global markets in both residential and commercial sectors.

Miniature surface-mount top-view near-infrared LEDs

Rohm compact near-infra-red LEDs

Rohm has introduced six miniature surface-mount top-view near-infrared LEDs. There are three packages: one measures 1 x 0.6mm and is only 0.2mm thick including a layer of encapsulation. Emission is 2.8mW/sr at 30mA. The other two measure 1.6 x 0.8mm and have either a lensed top (1.24mm tall, 5mW/sr at 20mA), or a flat top (1.06mm tall, 1.9mW/sr at 20mA) ...

Micro-LED display with all-over photodetection

CEALeti microdisplay with organic senors

CEA-Leti revealed GaN micro-LED displays incorporating an array of organic photodetectors. “MicroLED’s high radiance allows us to free up space on the display panel to incorporate photodetectors,” said Leti’s project leader Michaël Pelissier. “Demonstrating the integration of microLEDs with photodetectors paves the way for multi-functional displays that combine imaging, gesture recognition and even biometric scanning.” The display-sensor was described in ...

Circular emitter LEDs for beam-forming

Cree XP-LR XP-GR circular emitter leds

Cree has introduced a pair of circular emitter LEDs with no over-die lens for beam-forming applications. Colour temperature options are 5,000, 5,700 or 6,000K. “These LEDs deliver smoother, more focused light output through optics compared to traditional square LES designs – perfect for premium flashlights, torches, bike lights and headlamps,” according to the company. Using the same 3.45 x 3.45mm ...

Embedded World: Adapter board sets the stage for LED design

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Embedded World 2025: LED design is highlighted by Rutronik with its RAB5 adapter board. It features ams Osram Osire LEDs which are designed for dynamic, ambient lighting. LEDs are customisable to meet specific applications, using the manufacturer’s graphic user interface (GUI). LEDs are individually addressable chips for colour and driver selection. The LEDs can be used for interior and ambient ...

LED matrix driver, touch matrix driver and RISC-V in one IC

Lumissil IS31CS9310 user interface MCU block

Lumissil Microsystems has introduce a speciallist RISC-V microcontroller for touch-controlled LED-based user interfaces, with optional sound feedback. There are two versions: IS31CS9310 for industrial use and AEC-Q100 grade-1 qualified IS32CS9310 for automotive use. An 8 x 12 LED matrix driver is the primary peripheral, with eight PMOS switches and 12 built-in 80mA PWM-controlled current sinks, that allow each LED to ...

GaN LEDs and power transistors on the same chip

Len van Deurzen Cornell

Gallium nitride-based LEDs and power transistors can be made on the same IC, according to scientists from Cornell University and the Polish Academy of Sciences. The trick is to used both sides of the wafer, and exploit a quirk of GaN. “GaN is unique among wide-bandgap semiconductors because it has a large electronic polarisation along its crystal axis, which gives ...

Melexis adds compact auto LED drivers for ambient lighting

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Melexis has extended its LIN RGB automotive LED driver offering with the MLX81123 offering cost-effective performance and reliability in a small package. Ambient LED lighting is now a key design feature for automotive manufacturers, enhancing the end-user’s experience and helping OEMs to provide striking visual distinction. With well known OEMs utilising ambient lighting extensively across their latest models, maintaining a ...

99% usable 100mm AlN wafers for UVC LEDs

Comparison of Crystal IS 100 mm bulk aluminum nitride substrate from CY24 Q1 (left) with 90% usable area and CY24 Q2 (right) with 99.3% usable area

Crystal IS has reached 99% usable area in the 100mm diameter single-crystal aluminum nitride substrates that it is developing for UVC LED production, particularly in the 260 – 270nm germicidal range. The ultra-wide bandgap and high thermal conductivity of AlN is also applicable to RF and power devices. Its first 100mm AlN wafer was made in August last year, and ...