| abstract |
The present invention provides a switchable lens element comprising an inverted lens structure and an isotropic cover sheet formed of an isotropic material, wherein the resulting lens structure comprises an electrically switchable polymer stabilized blue phase LC medium, the blue phase The LC medium has the same refractive index in its isotropic state. In addition, the present invention relates to the use of such a lens element in an electro-optic device, that is, in an autostereoscopic display device operable in a 2D mode or a 3D mode, wherein the lens configuration directs the output from different pixels to different The spatial position is such that a stereoscopic image is viewable and wherein the lens configuration comprises a plurality of the switchable lens elements. |