➀ Researchers at Tianjin University developed a non-destructive 'soft-touch' testing method for micro-LED wafers using flexible 3D probes with minimal pressure (0.9 MPa) to prevent surface damage;

➁ The system achieves 1/10,000th the pressure of traditional probes, ensuring wafer integrity and extending probe lifespan to over 1 million cycles;

➂ This innovation addresses critical quality control challenges in micro-LED production, enabling efficient yield screening and showing potential for commercialization in flexible electronics.

➀ A joint research project by Heinrich-Heine-Universität Düsseldorf and Universität Innsbruck explores manganese as a sustainable alternative to rare-earth elements in LED phosphors;

➁ Mn²⁺ in alkali lithosilicates demonstrates stable white-light emission under high temperatures, potentially replacing dual rare-earth phosphors in LEDs;

➂ The innovation addresses geopolitical and cost challenges of rare-earth mining while improving material accessibility and thermal performance for lighting applications.

➀ Researchers from Zhejiang University and the University of Cambridge have developed perovskite-based LEDs with pixels as small as a virus, potentially revolutionizing display technology.

➁ These LEDs, which are monochrome and measure 90 nanometers wide, offer brightness and efficiency comparable to conventional LEDs but face challenges in achieving full-color displays and long-term durability.

➂ While the smallest pixels may not be visible to the human eye, they could find applications in advanced technologies like augmented reality devices requiring ultra-high resolution.

➀ This article introduces the smallest IoT-enabled RGB LED Controller built using the IndusBoard Coin V2 and a WS2812B NeoPixel LED ring.

➁ Key features include web-based control, custom animations, scalable design, and fine-tuned control capabilities.

➂ The controller can be used for smart home lighting, interactive displays, wearable tech, and art installations. The project details include a bill of materials, circuit design, and step-by-step instructions for setting up the IoT RGB LED Controller.