In the complaint, Jingdian pointed out that V-TAC's LED filament bulbs, for example, the VT-5115D model No. 215, the VT-5100D 200, and the VT-5133 bulb of the 283, infringe a number of its U.S. patents (including but not limited to US6346771). /US7489068/US7560738/US8240881/US9065022/US9488321/US9664340).
In recent years, under the background of LED lighting product prices and profit-sharing industries, filament lamps can be described as dark horses. They are attracting attention. LED filament packaging is a kind of technological innovation. LED filaments are a series of chips fixed in series on glass substrates. The die-bonding package is completed, which has the characteristics of low current and high voltage, which effectively reduces the heating of the LED and the cost of the driver. It has outstanding advantages. It can produce a LED bulb with a similar shape to an incandescent lamp and can easily achieve 360 degrees. The whole week glows.
Search applet 'patent king', to view the technical information involved in the patent US7560738, the patent technology shows that on the transparent substrate, a number of LED chips using metal wires connected in series, directly cut the filament packaging 'multi-chip series' features.
Crystal Power injects a large amount of resources every year, and is committed to the research and development of the most advanced LED technology. In IncoPat used the 'applicant tool' to quickly look up the patents related to Epistar's optoelectronics, and analyzed the technical results using the IPC classification number for the search results. A comprehensive layout of related technologies for filament lamps, involving LED chips, transparent substrates, thermal substrates and high-angle light bulbs and other technical fields.
Crystal Power has many key patents in LED filament and LED filament lamp technology. In addition to the Filament Lamp related litigation filed in the United States in 2016, it continues to launch LED filament lamp patent offensives and also expands the market through patent licensing. As of 2018 Month, Crystal Electric LED Filament Lamp related patents have authorized Hong Kong Super Era Source, QLS, Xiamen Development Crystal Lighting and its subsidiaries and other companies.