The present invention provides a lighting device, including: a second OLED layer formed on a window; a solar cell formed on the second OLED layer; and a first OLED layer formed on the solar cell.
申请公布号
US8643028(B2)
申请公布日期
2014.02.04
申请号
US200913513320
申请日期
2009.12.21
申请人
BAN TAE HYUN;KIM KWANG BOK;KUMHO ELECTRIC CO., LTD.
