Brightness less than AC LED chip factory layout HV LED

Alternating current light-emitting diode (AC LED) chip factory have raised the proportion of high voltage (HV) LED chip development. In the AC LED technology is difficult to break through the shackles of contrast, the brightness can keep up the traditional direct current (DC) LED, therefore, AC LED providers are scrambling to increase both the luminous efficiency and heat dissipation of the advantages of the HV LED layout, to make up for the AC LED product line by the loss of revenue.

Fuhua electronic LED Department Senior Manager Chen Dongliang said, in the face of DC LED luminous efficiency and price offensive, AC LED supply chain manufacturers have turned to HV LED and DC LED increased layout.

Fuhua electronic LED Department Senior Manager Chen Dongliang said that the current AC LED DC LED up to 60 brightness gap to 70%, and the price is still higher than that of DC LED, therefore, Seoul Jingyuan photoelectric semiconductor (Seoul Semiconductor), Samsung Electronics (Samsung) AC LED chip manufacturer's product strategy also make a new start, to embrace HV LED, to master general lighting more business opportunities.

The day before, AC LED chip and package that has been through the semiconductor manufacturers in Seoul as many as sixteen star HV LED collocation rectifier, developed the luminous efficiency of 100 lumens per watt AC LED module Acrich2, and with the integration of multicellular (Integrated Multi -cELl) technology, to improve the power factor (PF) reached 0.99, compared with the previous generation to save power the amount of up to 50%.

Chen Dongliang pointed out that since the AC LED light emitting efficiency to meet the lighting requirements of the market, and actively explore the past and small candle lamp bulb application domain, however constrained by the price is higher than the DC LED, so those hard to stretch, in view of this, Seoul is trying to use HV LED equipped with semiconductor rectifiers, create AC LED module, general lighting market actively snatch cake.

However, EPISTAR Seoul semiconductor and Samsung HV LED core technology manufacturers use different types of grain, so the development of the HC LED architecture is different, also is the same size light emitting efficiency. HV currently EPISTAR LED luminous efficiency has reached 150 lumens per watt; as for the Samsung and Seoul semiconductor light emitting efficiency, up to 100 lumens per watt following system.

Chen Dongliang believes that the price of HV LED increase the brightness and expanding sector priority in Seoul, built in the 8 watt semiconductor advertised 600 lumens AC LED module HV LED module as an example, the overall price of more than $3; however, Nichia (Nichia) DC LED per watt quote about NT 8 yuan, conversion the eight DC LED module offer only about $3, it cost HV LED still decline in space.

By DC LED luminous efficiency and rapid price rise shock, not only AC LED upstream epitaxial and chip manufacturers, packaging and lighting industry are also affected.

Chen Dongliang is mentioned in the beginning of 2011, Fuhua electronic from AC LED packaging factory Kuazu downstream lighting system, to expand the product to the sea, but the economic downturn affected by Japan, the monthly AC LED package shipments have been looking from three hundred thousand down to one hundred thousand, it also started DC Fuhua electronic LED deployment, a large amount of orders. Now has to DC LED, the main supply line to the parent company's use of Datong lighting products.