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LED(Light Emitting Diodes)? ?? PPT?? ???.??
Light Emitting Diodes
Contents of this presentation
What is LEDs?
History of LEDs
Principle of LEDs
Type of LEDS
Manufacture of LEDS
Application of LEDs
What is LEDs?
PKG :Epoxy Resin
LED Chip
Gold Wire
Lead Frame
Structure of LED????
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3. ???? ????? ???? ???? ? ??.
4. ?¡¤?? ?? ???? ?? ????.
5. ????, ?????, ????? ??.
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LED ?? ? Technology
26???
Emerging solid-state lighting technology - rapid development in efficiency, available emission spectrum, higher power and speed - ruggedness, low-voltage operation, high reliability, low cost LEDs .. -
LED ????? ?? ??? ???? ??
30???
¡ò ? LED? ???? ???? - ?? ?? LED - ???, ???, ??? ????? ?? ???? ?? ?? - ?? ??? ????? ?? ??? ?? ?? ??? ????? ????? ??? ? ?? ?? ??? Light Emmiting Diode : ?? ?? ???? PN??? ??? ?..
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LED
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1. LED (Light Emitting Diode) ?? 1) LED ?? - LED (Light Emitting Diode)? ?????? ????? ?????? ????? ???? ??? ?????? ?? p? ???? ??? ?????? ?? n? ???? ???? ??? ??. ?????? ??? ??? ?? ?? ?????? ???.. -
Wire Bonding ??
37???
Wire Diamater??? 18?(0.71MIL)~ 33?(1.3MIL)? ??? fine gold wire? capillary? ?? ????. Capillary? ????? 1/16¡±(.0625¡±/1.587mm)? ??? .437¡±(11.10mm)? ??? ???. Capillary? ?? ??? ?? Tip ??? ????? ?? ?????.. -
[????]Light Emitting Diode
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?? ??????? ???? ??? ?????? ????? ????? ??? ? ??? ???? ???? ???. ??? ? ?? ??? ???? ????? LED Lamp? ???? ?????? ???? ???? ??????? ?? ?? ? ??? LED? ??? ?? ????? ???? ??? ??? ??????Full color ????? ???? ?..
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- ????? ??????5 ?? ????(LED) ? ?? (Zener) ????
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- LED? ?? ???
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- LED(Light Emitting Diode)
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- [????] LED(light emitting diode)
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- AMOLED (Active Matrix Organic Light-Emitting Diode) ????????????
- *?* | 3 ???
- 2,500?
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- LED (Light Emitting Diode)
- *?* | 2 ???
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- *?* | 33 ???
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- LED(Light emitting diode)? ??? ????, ????? ?? ???
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- LED(Light Emitting Diode)? ?? ??
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- LED(Light Emitting Diode)??
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- LED(Light Emitting Diode)? ??? ??
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