ELECTRO-OPTICAL SWITCHING ELEMENT AND ELECTRO-OPTICAL DISPLAY

摘要

The present invention relates to electro-optical switching elements and displays comprising them. In particular, it relates to electro-optical switching elements comprising at least a light reflecting layer, a light switching layer, and a light conversion layer, which comprises one or more light emitting substances, in particular, a light reflecting layer, which selectively reflects visible light, a light controlling element that controls the amount of transmitted and/or reflected light, and a light converting layer that shifts the wavelength of the transmitted light to longer values. The displays give bright images under either bright or dark conditions with small power consumption. They are particularly suitable for so called liquid crystal, electronic paper (e-paper) and MEMS switching applications.

主权项

1. An electro-optical switching element comprising,
one or more layers of light reflecting layer (1), capable to selectively reflect light, an electro-optical element (2), capable to control the intensity of light and stacked over the light reflecting layer (1), and one or more layers of light converting layer (3), capable to shift the wavelength of (the) light to longer values and arranged over the electro-optical element (2), wherein, the light reflecting layer (1) is in the underside of the electro-optical element (2) and the light converting layer (3) is in the front side of the electro-optical element (2) designed to face an observer of the electro-optical switching element.