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WHITE LED PACKAGING STRUCTURE AND WHITE LIGHT SOURCE SYSTEM
WHITE LED PACKAGING STRUCTURE AND WHITE LIGHT SOURCE SYSTEM
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机译：白光LED封装结构和白光光源系统
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摘要
Provided is a white LED packaging structure, comprising: a substrate, LED chips and a wavelength conversion material layer, wherein the LED chips have at least two types of wavelengths; a peak wavelength of the first type of LED chips is between 385 nm and 425 nm; a peak wavelength of the second type of chips is greater than the peak wavelength of the first type of LED chips; a peak wavelength of an emission spectrum of the wavelength conversion material layer is between 440 nm and 700 nm; and the wavelength conversion material layer absorbs light emitted from the LED chips, so as to emit a white light source.
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