Electroluminescent display unit and electronic device

Application Number  00129022 Application Date  2000.09.25
Publication Number  1290042 Publication Date  2001.04.04
Priority Information   1999/9/24 JP 271235/99  
Applicant(s) Name  Semiconductor Energy Laboratory Co., Ltd.  
Inventor(s) Name  Oyama Uruu  
Patent Agency Code  72001 Patent Agent  chen ji
AbstractIn an EL display device in which color purity of each of red, blue and green is different, the EL display device displaying an image of a desired balance of red, blue and green is provided. A video signal supplied to each EL element is gamma-corrected by a correction circuit, the color purity of each of blue luminescence, green luminescence, and red luminescence is suitably controlled in accordance with the voltage and current of the corrected video signal.