EL structure Character LCD Modules

EL in sandwich structures above and below each one electrode, wherein the electrode of ITO film, a light emitted from the surface of the ITO film, the lower electrode of the second electrode, also known as the back electrode, wherein the main material is silver or carbon.
Luminescent materials (mainly zinc sulfide, on behalf of mathematical formulas: ZNS) when it will have different activator, combining a variety of substances, so the different colors of light. (Currently used light pink color: pure blue, pure green, blue, white)Character LCD Modules
EL technology, which involves a complex solid-state chemistry, materials science, vacuum plating (IONSPATTERING ion sputtering), in the current research, the manufacturing process requires not only high-tech production, detection technology, and because of the special nature of the industry, requires a lot of high- scientific and technical personnel and skilled workers.
EL emission luminance and voltage relationship: L = Lo exp (-uo / u) where L = light intensity, u = excitation condition, and the light emitting structure of the light emitting powder single constant related to [1] - [3]
Luminous intensity in the low frequency range is proportional to frequency, as the frequency increases, the luminescent intensity saturation, but the surface light-emitting experiment no obvious relationship between the duty cycle, in other words, at the same frequency, changing the duty cycle of the waveform of the voltage , does not significantly change the luminous intensity.COG LCD Display