COB LED is Produced in Different Ways Depending on Electrical and Optical Properties, Says SNE Research12 Apr 2013 • by Natalie Aster
The technology development of COB LED was lead by Nichia in the beginning but as Nichia is now doing business with Citizen the roles are allocated and Nichia is no more participating in the packaging business. Citizen has recently made a plan to mass produce 2,700K, Ra80, 20W LED with luminous efficiency 130lm/W and BridgeLux has recently finished the preparation to mass produce 5,000K, Ra70, 83W LED of luminous efficiency 143lm/W from March 2013. In the COB LED market having power consumption above 30W the two companies have the reputation for having the best level of competitiveness.
In Korea, Seoul Semiconductor has the most advanced technology as it recently self developed a COB LED of 5,000K, Ra70, 40W with luminous efficiency 125~130lm/W which is scheduled to be mass produced. The Korea Polytechnic University is developing a COB LED in cooperation with other industry organizations and targeting a price of 3$ for 1,000lm COB LED by year 2015.
According to the report “LED Lighting - Key Patent Analysis: COB LED” by SNE Research, Cree is also devoting on COB LED by developing a module with chip efficiency 180lm/W and Luminus, an affiliate of Philips has strength in surface illuminant COB LED module which is based on flip chip. This COB is close to surface illuminant as the interior surface of this COB has significantly large light emitting area compared to area which does not. As surface illuminant is very important in improving the quality of light it is expected to become competitive in the future.
LED Lighting - Key Patent Analysis: COB LED
Published: March, 2013
Price: US$ 4,250.00
COB LED is produced in different ways depending on electrical and optical properties including color temperature, color rendering, rated voltage, current consumption, chip size, chip array, size of light emitting area and circuit design. And thus, it is necessary to develop COB LED lighting products which has strength in key components and design structure.
More information can be found in the report “LED Lighting - Key Patent Analysis: COB LED” by SNE Research.
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