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    • 1. 发明申请
    • WHITE LED DEVICE COMPRISING DUAL-MOLD AND MANUFACTURING METHOD FOR THE SAME
    • 包含双模的白色LED装置及其制造方法
    • WO2005067068A1
    • 2005-07-21
    • PCT/KR2004/003522
    • 2004-12-30
    • SSIPARK, Jun-KyuYOO, Jae-Hyoung
    • PARK, Jun-KyuYOO, Jae-Hyoung
    • H01L33/00
    • H01L33/504H01L33/56H01L2224/48091H01L2224/48247H01L2224/73265H01L2924/181H01L2924/00014H01L2924/00012
    • A conventional high-luminance white light emitting diode (LED) device has the disadvantage of it being difficult to achieve high luminance and excellent and uniform quality since emitted light is weaker in the red wavelength region that at yellow wavelengths. The present invention provides a high-luminance white LED device with improved color rendering and spectrum distribution, and a method of manufacturing the same. The white LED device according to one embodiment of the present invention is characterized by dual molds. The white LED device includes: an LED chip mounting member for mounting an LED chip; at least one blue LED chip or ultraviolet LED chip mounted on the LED chip mounting member; a first mold having a transparent epoxy resin and a first phosphor and sealing the blue or ultraviolet LED chip, the first phosphor dispersed in the transparent epoxy resin to convert light emitted from the blue or ultraviolet LED chip into first light having a first wavelength; and a second mold having a transparent epoxy resin and a second phosphor and formed on the first mold, the second phosphor dispersed in the transparent epoxy resin to convert light emitted from the blue or ultraviolet LED chip into second light having a second wavelength, the second light being white light obtained by combination of the emitted light with the first light. The white LED device having the dual molds can be a lamp-type LED device, an injection-molded housing package-type LED device, or a transfer-molded chip-type LED device.
    • 传统的高亮度白光发光二极管(LED)器件的缺点是难以实现高亮度和优异且均匀的质量,因为发射光在黄色波长的红色波长区域较弱。 本发明提供一种具有改进的显色性和频谱分布的高亮度白光LED装置及其制造方法。 根据本发明的一个实施例的白色LED装置的特征在于双模。 白色LED装置包括:用于安装LED芯片的LED芯片安装构件; 至少一个蓝色LED芯片或紫外LED芯片安装在LED芯片安装构件上; 具有透明环氧树脂和第一荧光体并密封蓝色或紫外LED芯片的第一模具,分散在透明环氧树脂中的第一荧光体将从蓝色或紫外LED芯片发射的光转换成具有第一波长的第一光; 以及第二模具,其具有透明环氧树脂和第二荧光体,并且形成在所述第一模具上,所述第二荧光体分散在所述透明环氧树脂中,以将从蓝色或紫外LED芯片发射的光转换为具有第二波长的第二光, 光是通过发射的光与第一光的组合而获得的白光。 具有双模的白色LED装置可以是灯型LED装置,注射成型的壳体封装型LED器件或转印成型的芯片型LED器件。