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    • 1. 发明公开
    • Dot matrix and segmented displays with uniform illumination
    • Punktmatrix- und segmentierte Anzeigen mitgleichmäßigerBeleuchtung
    • EP2175436A1
    • 2010-04-14
    • EP08017601.9
    • 2008-10-08
    • Barton, Richard Peter JamesMay, William, Wallace
    • Barton, Richard Peter JamesMay, William, Wallace
    • G09F9/33
    • G09F9/33G09F9/3023
    • This invention relates to white and coloured dot-matrix and segmented displays in which the colour is produced by means of blue or ultra-violet light-emitting diodes (LED) together with a wavelength conversion phosphor, or combination of phosphors. A white or coloured dot-matrix display is produced by conversion of blue or Ultra-Violet light from an array of light-emitting diodes (LEDs) 1 by means of a layer of phosphor 5 applied to a substrate 4 so as to provide uniform illumination over the areas 8 . In comparison to the previous art the invention improves the uniformity and consistency of illumination over the illuminated areas of the display and also improves reliability by distancing the phosphor layer 5 from the dissipation generated by the LEDs 1 .
    • 本发明涉及白色和彩色的点阵和分段显示器,其中通过蓝色或紫外发光二极管(LED)与波长转换荧光体或荧光体的组合产生颜色。 通过用施加到基板4的磷光体层1转换来自发光二极管(LED)阵列1的蓝色或超紫色光来产生白色或彩色点阵显示器,以便提供均匀的照明 在区域8。 与以前的技术相比,本发明改进了照明区域的照明的均匀性和一致性,并且通过将荧光体层5与由LED 1产生的耗散区隔开来提高了可靠性。