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    • 4. 发明授权
    • White light emitting diode (LED) lighting device
    • 白光发光二极管(LED)照明装置
    • US08710519B2
    • 2014-04-29
    • US13583428
    • 2010-07-09
    • Ming ZhangKun ZhaoDong-ming Li
    • Ming ZhangKun ZhaoDong-ming Li
    • H01L33/50
    • C09K11/7792C09K11/586C09K11/7421C09K11/7703C09K11/7761C09K11/7774H01L33/504Y02B20/181
    • An alternating current (AC) white LED lighting device and a method for manufacturing the same are provided. The AC white LED lighting device consists of blue, violet or ultraviolet LED chips, blue afterglow luminescence materials A and yellow luminescence materials B. Wherein the weight ratio of the blue afterglow luminescence materials A to the yellow luminescence materials B is 10-70 wt %:30-90 wt %. Because of using afterglow luminescence materials, the light will be sustained when an excitation light source disappears, which can eliminate the influence of LED chips light output variation due to the AC fluctuation on the lighting device. And the problem of the heating of the chips also can be overcome. At the same time, the influence of temperature quenching effect and direction change of the AC current on the AC white LED lighting device is eliminated.
    • 提供交流(AC)白光LED照明装置及其制造方法。 交流白光LED照明装置由蓝色,紫色或紫外线LED芯片,蓝色余辉发光材料A和黄色发光材料B组成。其中蓝色余辉发光材料A与黄色发光材料B的重量比为10-70wt% :30-90重量%。 由于使用余辉发光材料,当激发光源消失时,光将会持续,这样可以消除由于照明装置上的交流波动引起的LED芯片光输出变化的影响。 而且芯片加热的问题也可以克服。 同时,消除了交流电流对AC白光LED照明装置的温度淬火效应和方向变化的影响。
    • 9. 发明授权
    • Photoluminescent sheet
    • 光致发光片
    • US08652651B2
    • 2014-02-18
    • US11716811
    • 2007-03-12
    • Choong-Yong SohnYoung-Wook Ko
    • Choong-Yong SohnYoung-Wook Ko
    • B32B9/00B32B19/00H05B33/00
    • C09K11/7734C09K11/7731C09K11/7761C09K11/7774G02B6/005
    • A photoluminescent sheet is disclosed. In one embodiment, the photoluminescent sheet includes i) a phosphor, for absorbing some light, of at least one wavelength, of light emitted from a light source and emitting particular light of a wavelength different from the wavelength of the emitted light, ii) a matrix, for having the phosphor, the remaining of the light emitted from the light source penetrating the matrix and iii) a passivation film, for being laminated to at least one surface of the matrix, whereas a roughness is formed on a surface of the passivation film to reduce a contacting area between the photoluminescent sheet and another sheet. According to one embodiment of the present invention, wet is not generated on a screen even though the photoluminescent sheet is connected to other sheets.
    • 公开了一种光致发光片。 在一个实施例中,光致发光片包括:i)用于吸收从光源发射的光的至少一个波长的一些光并发射与发射光的波长不同的波长的特定光的荧光体,ii) 矩阵,用于具有磷光体,剩余的从光源发射的光穿透基体,和iii)钝化膜,用于层压到基体的至少一个表面上,而在钝化层的表面上形成粗糙度 膜以减少光致发光片与另一片之间的接触面积。 根据本发明的一个实施例,即使光致发光片连接到其它片,也不会在屏幕上产生湿。