| 摘要 |
<p>PROBLEM TO BE SOLVED: To adapt the spectrum of the red emitting light of a color organic EL print head to the sensitivity wavelength of a photosensitive layer for optically sensing the red light of a recording medium. SOLUTION: In the organic EL print head for forming a color image, lights emitted from a light emitting layer made of the same material having color components of R, G and B are converted by a green optical filter, a red optical filter and a blue optical filter so as to match the sensitivity characteristics of the medium as the light having a different wavelength.</p> |
