| 摘要 |
A display (11) comprises an array of a plurality of liquid crystal elements (1, 2, 3 ..., 10) electrically connected in series. The element (1) with the lowest capacitance when energized comprises a liquid crystal material having a positive dielectric anisotropy so that it has a higher capacitance when energized than when non-energized. A second of the elements (2) has a capacitance when non-energized lower than the capacitance of the first element (1) when it is energized. The display (11) can be used for detecting a voltage or an electric field (V1, V2, V3, V4). |
