The above patent is one of Dow Corning's many intellectual property rights, including its patented high refractive (RI) phenyl optical silicone technology, which gives LED devices many high-value advantages, including improved light output and superior LED components. Mechanical protection and long-lasting gas barrier properties enhance product reliability.
Dow Corning first developed phenyl silicone packaging materials in Japan more than a decade ago and filed patent protection applications in Japan and other parts of the world. Since its inception, the high refractive index of this material has helped set the standard for optical LED silicone materials in these regional markets. Several countries and regions have approved patent applications for this technology, including Japan, South Korea, the United States, the European Union, Taiwan, Malaysia and China, of which the Korean 10-976075 patent was approved in 2010.
As LED devices gradually occupy more and more market share in general lighting, as the world's leading silicone and silicon technology innovator, Dow Corning hopes to make it a high refractive index optical material (such as phenyl silicone). One of the key drivers for the future development of the LED market.
Eric Peeters, vice president of Dow Corning Electronics and Lighting Solutions, stated: "High refractive index is not just a technical term, it represents a strategic market advantage for LED manufacturers worldwide. Our patented materials have a refractive index of up to 1.54, while the traditional The methyl silicone technology can only achieve a refractive index of 1.41. Although the refractive indices of the two seem to be very small, this small difference can increase the light output rate of the LED by 7%; before that, Significantly improving the performance of LED chips requires a huge investment."
Dow Corning's range of phenyl silicone packaging materials not only has a high refractive index, but also has many light and thermal stability requirements for medium and high power LEDs used in general lighting applications, including chip-on-board (COB) LED architectures. Sex. Compared with methyl technology, phenyl silicone packaging materials generally have strong gas barrier properties, which help protect key components of LEDs such as silver electrodes and phosphors from moisture and sulfur. Since the silver electrode itself has both reflective properties and the phosphor is a key component of light conversion, enhancing the gas barrier properties helps maintain the performance of the LED product and the reliability of the light output.
The superior performance and reliability of Dow Corning Phenyl Silicone products over the past decade has helped them establish the market and technology leadership position in today's high performance LED field optical packaging materials. In fact, all of the company's optical packaging materials fall into the patent range of recent wins or its related IP series. Therefore, LED manufacturers can safely design and develop products using high-performance packaging materials with strong international patent protection.
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