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  • Wuxi Kinglux Glass Lens Co.Ltd
  • ADD:No.286,Changjiang North Rd,New Dist,Wuxi,JS prov,China
  • Tel: 86-510-66759801
  • Fax: 86-510-84602998
  • Mobile phone: 86-18168862789
  • E-mail: ledglasslens@163.com
  • Contact person: Huimin Zhang
  • What are the recent applications for LEDs?
    Apr 23, 2018

    The quantum efficiency of LEDs is ever increasing with availability of all primary colors (RGB) and reliability as good as the other display technologies. Surface mount LEDs are used in backlights for smaller LCD panels, equipment panels, and indoor message boards. Outdoor message boards are also LEDs for advertising displays and traffic signs. The durability and effectiveness of LEDs makes them ideal traffic lamp replacements for incandescent lamps.

    Light Emitting Layer Timeline CommentsTimelineComments
    GaAsP
    (Gallium Arsenide Phosphide)
    1960sOriginal low efficiency red using liquid phase epitaxy
    GaP
    (Gallium Phosphide)
    1970sHigh efficiency red
    GaAlAs
    (Gallium Aluminum Arsenide)
    1980sSingle and double heterostructure processed using vapor phase epitaxy increase efficiency
    InGaAlP
    (Indium Gallium Aluminum Phosphide)
    1990sMetal organic vapor phase epitaxy
    InGaN
    (Indium Gallium Nitride)
    2000sUltrabright green and blue

    Table 2 - LED Processes