Analysis of eight technologies of LED lighting industry in 2013

At present, OLED has been applied in the field of small size display, such as cell phone terminals, and the development potential in the field of large-size TV and lighting has also been recognized by the industry. OLED has been regarded as one of the most promising display and lighting products in twenty-first Century. The OLED, it is from 2012 officially boarded the stage lighting, although currently only a small role, but there is no small LED alternative threat. OLED is called organic light emitting diode (OLED), which is based on organic semiconductor material.

OLED has many advantages, such as all solid state, active luminescence, high contrast, ultra thin, low power consumption, no view limit, fast response speed, wide working temperature range, easy to realize flexibility and large area, low power consumption and so on.

At present, OLED has been applied in the field of small size display, such as cell phone terminals, and the development potential in the field of large-size TV and lighting has also been recognized by the industry. OLED has been regarded as one of the most promising display and lighting products in twenty-first Century. The OLED, it is from 2012 officially boarded the stage lighting, although currently only a small role, but there is no small LED alternative threat. However, the application of OLED in the field of lighting, light effect is a small test. In the display area of OLED brightness of 100 ~ 300cd/cm2 can be applied, but in the course of lighting, brightness to achieve at least 1000 ~ 3000cd/cm2.

The next few years, OLED and LED in the field of lighting in the rate of change, will depend on the progress of the OLED light efficiency.

Key words: two PSSPSS (PatternedSapphireSubstrate), which is grown on sapphire substrate by dry etching mask, the mask patterned by standard photolithography process, using ICP etching etching sapphire, and remove the mask, and then on the growth of GaN materials, the longitudinal development of GaN material into horizontal. On the one hand, can effectively reduce the bit dislocation density of GaN epitaxial material, thereby reducing the active area of the non radiative recombination, enhance the internal quantum efficiency, reduce reverse leakage current and improve the life of LED; on the other hand, the active region of the light emitted by the GaN and sapphire substrate interface, multiple scattering changes exit light reflection angle LED, increase the light flip probability from the sapphire substrate, thereby improving the light extraction efficiency.

Therefore, PSS a time to become an extension of the main manufacturers competing to enhance the brightness of the mainstream technology, the rapid popularization of the second half of 2013 PSS has accounted for nearly 80% of the world's LED sapphire substrate.

Key words: three non sapphire substrate in addition to the successful commercialization of SiC CREE substrate, people have been accustomed to the substrate material is sapphire. Come over to 2013, the first time the sapphire substrate program on the status of the sapphire substrate launched a challenge.

Key words: eutectic technology in another four in 2013 is the most common packaging technology. The eutectic is at a relatively low temperature eutectic solder eutectic material fusion phenomenon, eutectic alloy directly from solid to liquid, but not through the plastic stage, is a liquid and generate two solid balance reaction. Eutectic temperature. The key of eutectic welding technology is the selection of eutectic material and the control of welding temperature. In the case of eutectic welding, the pure tin (Sn) or gold tin (Au-Sn) can be used as the contact layer on the bottom of the grain. When the substrate is heated to a suitable eutectic temperature, gold or silver penetratesinto gold tin alloy layer, alloy layer changes increase the melting point, the eutectic layer and LED curing fastening welding heat sink or substrate.

The eutectic layer and the heat sink or the substrate are fully bonded as a whole, breaking the heat bottleneck from the chip to the substrate in the cooling system, improving the life of the LED.

Keyword five: HVLEDHVLED as its name implies is the high voltage LED, compared with the traditional DCLED, with low cost, high efficiency, high efficiency, low power consumption, low power consumption and other advantages.

Specifically: 1, HVLED chip directly on the chip to achieve a series of parallel particles, so that it will work in the low current and high voltage, the chip will simplify the solid crystal, the number of bonding, packaging costs. 2, HV chip in the unit area to form a plurality of micro grain integration, to avoid inter chip BIN such as wavelength, brightness, voltage span brings the problem of consistency; 3, HVLED chip is the power type chip driver at low current, with the red LED chip + yellow phosphor powder to form a warm white. Form than the traditional DCLED+ red fluorescent powder + yellow phosphor powder warm white light with high luminous efficiency, and shortened the LED warm white and cold white light effect package gap, high color and easier to achieve light finger; 4 and HVLED because of its high working voltage, easy realization of packaging products working voltage close to the City electricity. To improve the conversion efficiency of the power supply; the working current is low, the product in the application of line loss will be significantly lower than that of the traditional DC power LED chip.

Key words: AC drive IC Seoul semiconductor Acrich2 series launch, the creative design of the IC equipped with a bright spot immediately, the industry has been tracking the IC models and manufacturers in.

Key words: seven MLCOBMLCOB (Multilenschipsonboard) is based on COB structure, directly to every single LED chip package a lens, avoid light loss caused by the total reflection light, but also has the advantages and characteristics of COB.

Key words: intelligent lighting intelligent lighting refers to the intelligent lighting control system through the wireless network communication, to achieve the intelligent control of lighting equipment.

Lighting equipment through intelligent control, extended to a variety of control methods, such as PC, PDA, computer remote control, remote telephone also has the light brightness adjustment, light soft start, timing control, scene settings and other functions; and to achieve safety, comfort, energy saving, high efficiency.