| 摘要 |
An organic light-emitting device has an active layer that contains a cross-linked material, where selective cross-linking alters the solubility of regions in the active layer. The cross-linked material may be a light-emitting material, or alternatively a host material which can accept a guest material which is light-emitting, for example a dye. As an example, a colour pixel light-emitting device is manufactured with a high cross-linking density in pixel regions 14 and zero or low cross-linking density in inter-pixel regions 15. The active layer is more soluble in the inter-pixel regions 15 which can by easily removed to leave physically separated pixels. This prevents dyes, for example from diffusing out of a pixel during device operation. Light emitting cross-linked polymers or guest materials having different emission spectra are disposed in separate pixels. |
