The transparent smart light source with feature of adjustable direction

Transparent smart light source according to the present invention is applied to as to reflect the light emitted from the transparent OLED or transmitted in accordance with the polarity and magnitude of the voltage comprises a reflectance / transmittance adjustment element for adjusting the lighting direction, so that the lighting direction for the purpose a can simply be adjusted, it is possible to prevent a light amount loss to the unwanted direction can reduce the power consumption. The transparent smart light source according to the present invention may also serves as a curtain, as well as serving as one trillion people block the external light that enters, can be combined with a solar cell to also serve as the electric power generation. Transparent, OLED, Smart, a light source, illumination, a hydrogen, a solar cell