Abstract: The invention relates to a polymerisable LC medium with flat optical dispersion, a polymer film with flat optical dispersion obtainable from such a medium, and the use of the polymerisable LC medium and polymer film in optical, electro optical, electronic, semiconducting or luminescent components or devices.

Abstract: The present invention relates to a process of preparing a light modulation element of the PS-ULH (polymer stabilised ULH) type, which allows to reduce the operational voltage and allows to improve the switching time of the light modulation element.

Abstract: The invention relates to a polymerisable LC material comprising one or more direactive mesogenic compounds selected from the group of compounds of formula I, and one or more monoreactive mesogenic compounds selected from the group of compounds of formula II, wherein the parameter A11, P11 to P21, R21, Sp11 to Sp21, X11 to X21, and Z11 to Z21 have one of the meanings as given in claim 1. Furthermore, the present invention relates also to a method for its preparation, a polymer film with improved thermal durability obtainable from the corresponding polymerisable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.

Abstract: The invention relates to a polymerisable LC medium with flat optical dispersion, a polymer film with flat optical dispersion obtainable from such a medium, and the use of the polymerisable LC medium and polymer film in optical, electro optical, electronic, semiconducting or luminescent components or devices.

Abstract: The invention provides a light modulation element comprising a flexoelectric polarisable liquid-crystalline medium, characterized in that the switching from a boundary state A to a boundary state B comprises a combination of a distinct flexoelectric switching regime and a distinct dielectric switching regime upon application of an electric field. Furthermore, the present invention relates to the use of such a light modulation element in an electro-optical device, i.e. an LCD display device, and electrooptical devices comprising the light modulation element according to the present invention. Moreover, the invention relates to a method of production of the light modulation element according to the present invention.

Abstract: The invention relates to mesogenic media comprising a first component, component A, consisting of bimesogenic compounds selected from the group of compounds of formulae A-I to A-III a second component, component B, consisting of nematogenic compounds, preferably selected from the group of compounds of formulae B-I to B-III and a third component, component C, consisting of one or more chiral molecules, wherein the parameters have the meaning given in claim 1, to the use of mesogenic media in flexoelectric liquid crystal devices and to those devices comprising a liquid crystal medium according to the present invention.

Abstract: The present invention relates to a process of preparing a light modulation element of the PS-ULH (polymer stabilised ULH) type, which allows to reduce the operational voltage and allows to improve the switching time of the light modulation element.

Abstract: Mesogenic media comprising a first component, component A, consisting of bimesogenic compounds optionally a second component, component B, consisting of nematogenic compounds, and optionally a second or third component, component C, consisting of one or more chiral molecules, is suitable for use in flexoelectric liquid crystal devices.

Abstract: The invention provides a light modulation element comprising a flexoelectric polarisable liquid-crystalline medium, characterized in that the switching from a boundary state A to a boundary state B comprises a combination of a distinct flexoelectric switching regime and a distinct dielectric switching regime upon application of an electric field. Furthermore, the present invention relates to the use of such a light modulation element in an electro-optical device, i.e. an LCD display device, and electrooptical devices comprising the light modulation element according to the present invention. Moreover, the invention relates to a method of production of the light modulation element according to the present invention.

Abstract: The invention relates to mesogenic media comprising a first component, component A, consisting of bimesogenic compounds optionally a second component, component B, consisting of nematogenic compounds, preferably selected from the group of compounds of formulae B-I to B-III and optionally a second or third component, component C, consisting of one or more chiral molecules, wherein the parameters have the meaning given in claim 1, to the use of mesogenic media in flexoelectric liquid crystal devices and to those devices comprising a liquid crystal medium according to the present invention.

Abstract: The invention relates to compounds of formula I wherein R11, R12, MG11, MG12, X11, X12 and Sp1 have the meaning given in claim 1, to the use of these compounds of formula I in liquid crystal media and to respective devices comprising a liquid crystal medium according to the present invention and in particular to flexoelectric liquid crystal devices.

Abstract: The invention relates to mesogenic media comprising a first component, component A, consisting of bimesogenic compounds selected from the group of compounds of formulae A-I to A-III a second component, component B, consisting of nematogenic compounds, preferably selected from the group of compounds of formulae B-I to B-III and a third component, component C, consisting of one or more chiral molecules, wherein the parameters have the meaning given in claim 1, to the use of mesogenic media in flexoelectric liquid crystal devices and to those devices comprising a liquid crystal medium according to the present invention.