Creeled, Inc.

Cree Huizhou Solid State Lighting Company Limited

Cree Huizhou Opto Limited

JuZuo Sheng

Xiang Fei

Robert David Schmidt

Christopher P Hussell

Chi Keung Chan

Chak Hau Pang

Yue Kwong Victor Lau

Chak Hau Charles Pang

Yue Kwong Lau

Hao Liu

Zhenyu Zhong

Zhang Zhikuan

Meigui Luo

Light-emitting diode package

Solid-state lighting devices including light-emitting diodes (LEDs), and more particularly LED packages are disclosed. Arrangements for LED packages are disclosed that provide improved reliability and improved emission characteristics in a variety of applications, including outdoor LED displays as well as general illumination. LED packages are disclosed with linear arrangements of LED chips and corresponding lenses to provide improved visibility and color mixing at higher viewing angles. LED packages are disclosed that include different types of lenses that are arranged within the same LED package depending on desired emission characteristics. Body structures for LED packages are disclosed that include arrangements for improved adhesion with encapsulant materials and optional potting materials to provide improved moisture barriers.

Arrangements for light emitting diode packages

Light emitting diode (LED) packages and LED displays utilizing the LED packages are disclosed. LED packages can have a plurality of cavities with each having one or more LEDs. The LEDs can be individually controllable so that the LED package emits the desired color combination of light from the package. The LED packages are arranged with an encapsulant over the cavities that shape the LED package emission to a wide angle or pitch. Some of the LED packages can have three cavities, while others can have four or more cavities. The packages can comprise an encapsulant that forms lenses over the cavities and continues beyond the cavities to cover surfaces of the LED package body. The body can include different anchoring features to improve package reliability by anchoring the encapsulant to the body. One embodiment of an LED display according to the present invention comprises a plurality of LED packages, at least some having a plurality of cavities. Each of the packages comprises a lens over each cavity to produce an emission of the LEDs that has a wider angle compared to the emission without the lens. A potting material can be included between adjacent ones of the LED packages and overlaps the package encapsulant to further improve reliability.

Multiple LED light source lens design in an integrated package

The present invention is directed to LED packages and LED displays utilizing LED packages where the peak emission of the LED displays can exhibit improved emission characteristics. In some embodiments the improved characteristics include a wider horizontal emission angle for the LED packages according to the present invention, which results in improved emission characteristics for the LED display such as a wider far field pattern. This provides improved picture intensity and quality when viewing the display at different horizontal viewing angles. Different embodiments also provide for improved emission characteristics for LED packages emitting different colors of light when viewing at different vertical angles. In one embodiment the red and green LED packages can have emission patterns that are substantially the same at different vertical viewing angles within a range. This helps the colors of the display appear consistent at those angles.

Wide angle oval light emitting diode package

Growing community of inventors

Huizhou, China

JuZuo Sheng