ELECTRO-OPTICAL SWITCHING ELEMENT AND ELECTRO-OPTICAL DISPLAY

摘要

The instant invention relates electro-optical switching elements and displays comprising them. In particular, it relates to electro-optical switching elements comprising cholesteric liquid crystal layers, in particular, with both-handed twist senses, which selectively reflect visible light and/or light emitting moieties which are embedded in the cholesteric liquid crystal layers or other layers and an light controlling element that controls the amount of transmitted and/or reflected light. The displays give bright images under either bright or dark conditions with small power consumption. They are particularly suitable for e-paper applications and/or digital signage applications.