[Frankfurt] challenge the limits of luminous efficiency of LED

LEDinside interview 2016 Frankfurt architecture and lighting show that if it comes to the technical progress of various LED manufacturers, in fact, this exhibition can not see the revolutionary innovation technology. Mostly in the existing technology to do optimization and upgrade. But summed up, roughly from the technical side can still find some direction.

Introduction of special materials to improve performance, GaN on GaN LED, or GaN IC and other applications, including flexible LED filament, etc..

Through the improvement of a variety of materials and processes, to optimize the existing products, such as the luminous efficiency to the extreme power LED, or CSP LED.

Special applications, such as infrared iris recognition and infrared biosensor

Let's look at the new focus of the LED industry:

GaN on GaN LED

SORAA for the exhibition, showing the on GaN LED GaN on behalf of manufacturers. And this time also has the honor and co-founder of SORAA, Nobel prize winner Mr. consulting the future direction of the development of LED industry. Mr. Zhong stressed GaN on GaN LED to create a perfect LED light source. At present, the purple LED produced by SORAA is made of GaN substrate, also known as "GaN on GaN" LED. The GaN type semiconductor materials and GaN substrate combination, can effectively reduce the crystal dislocation density. Therefore, the utility model has the advantages of high luminous efficiency and high efficiency.

2014 Nobel prize winner, SORAA co-founder, Mr. Nakamura Shuji. (all images: LEDinside)

Purple LED chip using GaN on GaN technology.

In addition, the SORAA LED lamp also has the following characteristics, that is, the light emitted from the LED light (beam) is more uniform, free to change the shape of the beam. Even the development of known as the "SNAP" optical suite, the removal of the Department of the magnet, as long as the optical suite and the lamp combination, you can change the shape of the beam, but also to change the color temperature. The optical package for users, the use is very flexible, can be used with a variety of commercial occasions to transform the light angle and color temperature.

SORAA developed a variety of SNAP can change the shape of the beam, but also to change the color temperature of the optical suite.

SORAA's LED with the SNAP optical suite, allows the light to accurately change the angle of radiation to another object to be projected.

GaN IC Driver

GaN power components EPISTAR displays in the exhibition of Frankfurt's (GaN IC Driver), the exhibition inquiry is also high. The traditional power supply or power converter design of silicon power devices, and greatly enhance energy efficiency volume are limited, if the switch to GaN power components, can significantly reduce power design size, and improve energy efficiency, and can create the possibility of more new applications.

DOB module, with traditional silicon power components, still need a considerable amount of resistance and capacitance protection circuit.

DOB module, with GaN power components, due to the characteristics of the material can withstand a large voltage, will be able to reduce the relevant protection circuit components, effectively reducing the volume.

Challenge the limits of LED luminous efficiency

This exhibition, the LED manufacturers have displayed high luminous efficiency of the LED products. From small power LED to COB, its luminous efficiency have challenged the technical limit. Due to the development of LED technology has reached a relatively mature stage, the LED efficiency of various manufacturers are actually quite close.

Samsung LED demonstrated by a full range of LED products luminous efficiency, but also can represent the technical progress of each manufacturer.

200LM/W power LED have come out

Such as billion light and Seoul semiconductor, Samsung LED have launched 200LM/W medium power LED. Coincidentally, several companies have claimed that this year's 5630 series of products will reach 220LM/W luminous efficiency.

Manufacturers launched a full range of CSP LED

Various manufacturers have launched a full range of CSP LED, the current 1W specifications of CSP LED mostly in 140LM/W, including DMC (Nichia Direct Mountable Chip) series, 1616 CSP LED and lextar.

0.2W CSP LED lextar up to 210LM/W, 0.9W CSP LED about 140LM/W.

The LEDinside is also observed that more and more LED manufacturers to launch the use of single CSP LED composed of integrated CSP LED module, the target replaces COB LED.

Crystal electric integrated CSP LED module, can be composed of a single CSP 20~40W module, providing customers with a choice other than COB.

Citizen roadmap also plans to launch the fifth generation of COB LED, luminous flux up to 3749LM COB, light efficiency of up to 150LM/W.

Adhere to the quality of light can not compromise

Due to the fierce competition in the price of LED, some LED manufacturers have chosen to move to another high-end market, to make product differentiation. For example, from the Silicon Valley XICATO showed the use of Remote phosphor technology to build the light source module can effectively control the color tolerance in 1~2 (MacAdam Ellipse) within macadam. Because of the company's products to take quality route, the current XICATO products have been used by many European high-end lighting brand manufacturers.

XICATO marketing approach, the use of XICATO MAN to combat a variety of light quality problems.

And the poor quality of light and stroboscopic phenomenon caused by the visual illusion (TLA, temporal light artefacts) problem, in recent years has gradually been the attention of the lighting industry. During the exhibition, many LED manufacturers have made