| 摘要 |
A balloon comprises a printed display. The printed display comprises: a printed image layer 12; a blocking layer 14 provided behind selected portions of the printed image layer; and a diffusion layer 13 provided behind at least those portions of the printed image layer not backed by the blocking layer. The blocking layer acts to block illumination of portions of the printed image layer, such that the printed display provides a different appearance when lit primarily from inside the balloon to when lit primarily from outside the balloon. The printed display may further comprise a transparent or translucent substrate 11 upon which one or more of the layers are printed. The balloon may have an illumination source that is operable to illuminate the inside of the balloon. The illumination source may be an LED (140, Fig.3). There is also provided a method of manufacturing the printed display for a balloon. |
