abstract |
The invention relates to a light modulation element comprising a cholesteric liquid crystalline medium sandwiched between two substrates (1) each provided with a common electrode structure (2) and a drive electrode structure (3), wherein the substrate with the drive and/or common electrode structure is additionally provided with an alignment electrode structure (4) separated from the drive and or common electrode structure on the same substrate by a dielectric layer (5), characterized in that it comprises at least one alignment layer (6) directly adjacent to the liquid crystalline medium. The invention further relates to a method of producing said light modulation element and the use of the light modulation element in various types of optical and electro-optical devices, such as electro-optical displays, Liquid Crystal Displays (LCDs), non-linear optical (NLO) devices and optical information storage devices. |