| 摘要 |
<p>A flexible photovoltaic cell integrated onto an active card, such as a greeting card or 'smart' card, may be fabricated separately and then integrated with additional electronics on the active card. Alternatively, the photovoltaic cell may be fabricated on the active card itself, constituting, if desired, part or all of its surface design. In addition, a flexible photovoltaically powered display, which may be utilized in a wide variety of display contexts including retail shelf systems, is described. The photovoltaic cell is preferably activated by ambient light (e.g., fluorescent or incandescent).</p> |
