Abstract: The present application provides a compound of general formula (I), capable of being used for an organic electroluminescent device as a guest material of a light-emitting layer. The compound contains a structure in which a natural heterocyclic ring coordinates with iridium (Ir), and a light-emitting wavelength of the compound can be effectively regulated. Using the compound as the guest material of the light-emitting layer facilitates the improvement of luminous efficiency and light stability of the organic electroluminescent device. In addition, the compound provided by the present application has a small molecular weight, is applied to a light-emitting layer, has a low evaporation temperature, and facilitates processing. The present application also provides a guest material of a light-emitting layer containing the compound of general formula (I), an organic electroluminescent device, and a display device.

Abstract: Disclosed is a negative dielectric anisotropic liquid crystal compound represented by Formula (I): wherein R1, R2, R3, and n are as defined herein. A process for preparing the negative dielectric anisotropic liquid crystal compound, a negative dielectric anisotropic liquid crystal composition including the negative dielectric anisotropic liquid crystal compound, and use of the negative dielectric anisotropic liquid crystal compound are also disclosed.

Abstract: Disclosed herein are novel liquid crystal compounds of formula I: wherein each of the substituents is given the definition as set forth in the Specification and Claims. Also disclosed are liquid crystal media including the novel liquid crystal compounds of formula I, which are suitably applied in an active matrix display device.

Abstract: A liquid crystal composition includes at least one polar compound represented by Formula (I), at least one polar compound represented by Formula (II), at least one compound represented by Formula (III), and at least one compound represented by Formula (IV), in which Formulae (I) to (IV) are as defined herein.

Abstract: A liquid crystal composition includes at least one polar compound represented by Formula (I), at least one polar compound represented by Formula (II), at least one compound represented by Formula (III), at least one compound represented by Formula (IV), and at least one compound represented by Formula (V), in which Formulae (I) to (V) are as defined herein.