LightEmitting Diode(LED) ProcessDesign
- Team Project Report(Group12)
Ⅰ. INTRODUCTION
Ⅰ. LED
LED(LightEmitting Diode)는 반도체에 전압을 인가할 때 생기는 발광현상을 이용한 광원이다. 전기를 통해주면 전자가 에너지 레벨이 높은 곳에서 낮은 곳으로 이동하면서 특정한 파장의 빛을 내는 화합물 반도체에
All of the top, middle, and bottom side of an umbrella were important considerations. Through many times of experiments, we decided to use one straight lighted LED, and it was located at the bottom since it would be more easily noticed.
In the process of making an actual product, new constraints were considered or were solved naturally. First of all, number of piezoelectric sheets were limited
process, the concept of green building appeared. One of these alternatives, green building certification was actively developed and carried out in each countries.
The United States established US Green Building Council (USGBC) in 1993 for pursuing the sustainability of buildings and construction industry, designed buildings and communities that can give environment improving quality of life and
An organic lightemitting diode (OLED) is a solid state device like the LED but composed of several layers in which the emissive electroluminescent layer is a film of organic compounds which emitlight in response to an electric current.
Function of each part
Cathode : injecting electron composed of metal
Anode : injecting hole composed of transparent ITO
Emissive polymer : reco
Water proof
Voltage
Brightness
Existing umbrella played a role in the protection of mankind from the rain. In addition to this fundamental function, Luminella is a competitive factor as LEDs on the surface of umbrella emitlight and thus reducing the accidents. For this facility, piezoelectric size should be approximately 3X5cm as users have to be able to fold and open an umbrella. Piezoelec