Discussion on the market trend, the trend of technology evolution and the patent layout of LED filament lamp

LED filament lamp is currently the market has great potential for development of lighting products, in the Middle East, the Americas and the European market visibility is very high, but also one of the key products in the Asian supply chain LED lighting manufacturers. At present, LED filament lamps on the market one of the core filament, its key patents mainly fall crystal electric in Taiwan, LEDinside interviewed Taiwan EPISTAR, by the company marketing center director Wang Xiwei, intellectual property director Guo Meng Jun, as well as three intellectual property manager Zhou Guanyou and share LED filament lamp market trends, technology the evolution trend, patent layout and so on.

This time by the crystal electric marketing center director Wang Xiwei, director of intellectual property and intellectual property manager Guo Mengjun, three Zhou Guanyou share LED filament lamp market trends, technology evolution trend, patent layout etc.. (photo: LEDinside)

LED filament lamp has been able to replace the traditional tungsten lamp, art light source

LED filament lamp lighting market the main buyers get attention in recent years, mainly because of consumer demand in recent years for light art lamps, art lamps, crystal lamps, classical lamps, tungsten lamp and halogen lamp light source has a tendency to replace the traditional and changed to LED, but the early spread of LED lighting products and can not meet the traditional lighting the needs of manufacturers in the art lamps, so LED filament lamp this market to emerge.

The main application of A19 and A60 LED filament and A55 lighting products, focused on 450lmLED lighting (using 4 filaments), and B35 F35, this is the 250lm specification, the candle lamp (using 2~3 filament), antique lamp, candle lamp, bulb, lamp decoration and so on is existing or to be replaced the overall market, and continue to expand the scale growth.

Crystal electric marketing center director Wang Xiwei, intellectual property Commissioner Guo Mengjun LEDinside interview, and intellectual property manager Zhou Guanyou three. (photo: LEDinside)

LED filament lamp technology trends

EPISTAR pointed out that LED filament lamp core technology in LED, the other filament assembly and there is no special difference compared to traditional light bulbs. The composition of LED filament consists of LED crystal, solid gel, phosphor and substrate. Substrate requirements for light transmittance, light shape no dead angle, in order to classify, sapphire, glass, transparent ceramic substrates are used. If the metal substrate is used, the product is easy to fail when the spot welding is assembled.

The use of glass substrate on the market filament, although the cost is low, but poor thermal conductivity, so the filament product design is limited to the width of the glass filament (1-2mm). However, the sapphire substrate width is only 0.8-1mm, the quality is comparable to that of the transparent ceramic substrate, but the cost of sapphire is higher than that of glass. However, due to the abundant supply of sapphire, so the use of sapphire substrate made of filament lamp accounted for 70-80%, transparent ceramic substrate accounted for 20%, glass accounted for about 10%. In this case, the general market LED filament prices, from $0.15 to $0.3 of low-priced goods, to higher prices of products are.

In addition, the price difference also comes from the phosphor and patent protection. With the improvement of process technology, the yield of the product has been solved, so in addition to the stable and high reliability of the LED crystal, the phosphor with excellent color performance has been gradually adopted by the market. Red phosphors, for example, because of its high color rendering, and the general price difference is very large. However, the crystal is also predicted that the future of LED filament lamp is bound to be the same as the LED bulb light bulb to face the challenge of price decline, but it was able to further open the market, so that the permeability gradually increased.

LED filament lamp to pay more attention to patents

Crystal power currently offers a variety of LED crystal products to lighting related customers, in addition to the general light bulb for the bulk also has some LED filament bulbs. EPISTAR said LED filament lamp now more patents than in the past, because a key technology of LED filament, is a number of LED bonding on the transparent substrate, light LED filament lamp produces better and luminous effect. The key technology of the crystal electric in 2004 made the United States, Europe, Taiwan and other places, Chinese, patents, and has been authorized to Yang Jing (Cosmoled), leedarson (Leedarson), FSL (FSL) and other manufacturers, and continue with other willing customer consultation, hope through patent licensing, and expand strategy partners, and to further expand the market, establish the competitive advantage.

Crystal electricity forecast 2016 LED filament lamp market size of up to 150 million, in 2017 to see the 300 million, in the year of the 600 million, for the current LED lighting market is a very potential product. LED has its own LED filament related patents, will continue to work with customers for product design and development, provide relevant solutions to promote the commercialization of filament lamp.

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