At present, white LEDs are widely used in lighting and backlighting applications, and have been globally recognized as a key technology in the lighting industry. As the application fields of LEDs continue to expand, so do the demands for higher performance, longer lifespan, and better color stability.
Traditional white LEDs are typically made by mixing phosphor with silica resin. The blue light emitted by the LED chip excites the phosphor, which then emits green, yellow, and red light, combining to produce white light. However, due to the poor weather resistance, thermal stability, and optical density of organic resins, these materials tend to degrade over time—leading to issues such as light decay, color shift, yellowing, and aging. As a result, traditional LED packaging is unsuitable for high-end lighting applications that require long-term reliability and consistent performance.
To address these limitations, Yantai Hilde New Materials Co., Ltd. (hereinafter referred to as "Hilde") has developed an innovative solution using glass ceramic fluorescent sheets. Combining the excellent optical transmission, high thermal stability, and strong weather resistance of glass with the luminescent properties of ceramic phosphors, Hilde's technology overcomes the shortcomings of conventional LED packaging, including poor durability, low optical density, and color instability.
This new packaging method ensures uniform color distribution, concentrated light emission, and minimal color shift even under high temperatures. It also offers superior resistance to yellowing and degradation, making it ideal for high-power LED applications where heat management is critical.
In conventional LED and LDP technologies, phosphor is typically dispersed in organic resins for encapsulation. However, prolonged exposure to heat from the LED chip or laser can cause the resin to crack, discolor, or degrade, leading to reduced luminous efficiency and color drift. Hilde’s glass ceramic fluorescent sheets eliminate these issues, providing more stable and efficient performance.
The company’s glass ceramic fluorescent package products have already gained significant market recognition. In just four months since mass production began, they have received positive feedback from multiple clients:
- **Shenzhen Ajibi Optoelectronics Technology Co., Ltd.**: "The illuminating film provided by your company performs very well at high optical density! I hope to sign the supply contract as soon as possible."
- **Leijie Technology Co., Ltd.**: "The optical properties of fluorescent films are very good and the price is reasonable. Our company will gradually replace imported products."
- **Guangzhou Jinglifeng Optoelectronics Technology Co., Ltd.**: "The performance after packaging and testing is better than that of traditional rubber powder mixed packaging, and we hope to further cooperate."
- **Guangyao Optoelectronic Energy Saving Technology Co., Ltd.**: "I have found a suitable fluorescent film for more than a year, and I have found a suitable cooperation partner."
- **Ningbo Shengpu Optoelectronics Co., Ltd.**: "The optical properties of fluorescent films are comparable to those of Taiwan samples."
- **Delta Electronics Industry Co., Ltd.**: "The optical performance of the product is no problem, and the price is reasonable."
- **Shenzhen Yangyang Electronic Technology Co., Ltd.**: "The color point distribution is concentrated, high temperature resistance, high heat stability, and low color shift. It's a great product. Hope to further cooperate!"
Based on the innovation of its "Glass Ceramic Fluorescent Sheet" technology and strong market competitiveness, Hilde has decided to submit this technology for the 2017 Advanced Technology LED Golden Globe Award in the category of "Innovative Technology of the Year."
**About Hilde**
Yantai Hilde New Materials Co., Ltd. was established in December 2005 with a registered capital of $9 million. The company covers an area of 38,200 square meters and includes a research and development center and industrialized workshop totaling 11,000 square meters. It is one of the few companies of its size in Shandong Province, recognized as a high-tech enterprise with a foreign-invested "Thousand-Person Plan" and two overseas Taishan scholars.
Over the past decade, the company has focused on building core technical capabilities, forming a multidisciplinary R&D team that continuously collaborates with universities and research institutions. Recently, Hilde has successfully developed over 100 products across nine major series, receiving support and recognition from government authorities at all levels. The company has won four national-level projects, three provincial-level projects, five municipal-level projects, and six district-level projects, while securing five national patents and establishing two enterprise technical standards.
With a strong foundation in R&D and a clear vision for future growth, Hilde is well-positioned to lead the next generation of LED packaging solutions.
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