Polarised LM of a liquid crystal display
Numéro d’image : 11997413
| Polarised light micrograph of a liquid crystal display (LCD) of the type used to represent numerical figures. Although liquid crystal (LC) flows like a fluid its molecular arrangement exhibits some order. An LCD has a film of LC sandwiched between crossed polarizers & set on top of a mirror. In the 'off' state (as here) light is able to traverse both polarizers,penetrate the LC and reflect back off the mirror. In the 'on' state (see: A608/042) an electric field applied across the LC alters its molecular alignment and hence its polarizing properties; light cannot traverse both polarizers to reach the mirror and the display appears dark | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Davidson, Michael W. |
| Taille de l’image : | 5153 px × 3397 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : |
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