| 摘要 |
The present invention relates to methods of patterning OLED organic layers using photo-oxidation. Specifically, the present invention relates to methods of patterning color changing material layers using light and ambient oxygen, together with a photomask, to photobleach unmasked areas of the layers. In particular, color changing materials can be patterned without physically removing any material from the layer. The method produces photobleached areas of the color changing material layers that do not absorb or emit light and that are substantially transparent to visible light. In particular, the methods of the present invention are useful for making high resolution, full-color OLED display devices comprising patterned fluorescent color changing material layers to create red and green sub-pixels starting from a monochromatic blue-emitting OLED display device. |
