Abstract: Organic metal compounds, organic light-emitting devices, and lighting devices employing the same are provided. The organic metal compound has a chemical structure represented by Formula (I): wherein M is Ir, Pt, Ru, Os, Cu, Au, or Pd; n is 1, 2, or 3; m is 0, 1, or 2, and the sum of m and n is equal to a valence of M; L is a bidentate ligand; R1 is hydrogen, C1-9 alkyl group, C5-10 cycloalkyl group, or C5-12 aromatic group; each of R2 is independent and can be hydrogen, halogen, cyano group, C1-9 alkyl group, C1-6 fluoroalkyl group, C5-10 cycloalkyl group, or C5-12 aromatic group; R3 is halogen; and, R4 and R5 are independently the same or different hydrogen, hydroxyl group, amine group, alkyl amine group, halogen, cyano group, C1-9 alkyl group, C1-6 fluoroalkyl group, C5-10 cycloalkyl group, or C5-12 aromatic group.

Abstract: Organic metal compounds, organic light-emitting devices, and lighting devices employing the same are provided. The organic metal compound has a chemical structure represented by Formula (I): , wherein M is Ir, Pt, Ru, Os, Cu, Au, or Pd; n is 1, 2, or 3; m is 0, 1, or 2, and the sum of m and n is equal to a valence of M; L is a bidentate ligand; R1 is hydrogen, C1-9 alkyl group, C5-10 cycloalkyl group, or C5-12 aromatic group; each of R2 is independent and can be hydrogen, halogen, cyano group, C1-9 alkyl group, C1-6 fluoroalkyl group, C5-10 cycloalkyl group, or C5-12 aromatic group; R3 is halogen; and, R4 and R5 are independently the same or different hydrogen, hydroxyl group, amine group, alkyl amine group, halogen, cyano group, C1-9 alkyl group, C1-6 fluoroalkyl group, C5-10 cycloalkyl group, or C5-12 aromatic group.

Abstract: In an embodiment of the present disclosure, a liquid crystal display is provided. The liquid crystal display includes an upper substrate, a lower substrate opposite to the upper substrate, and a liquid crystal layer disposed between the upper substrate and the lower substrate, wherein the liquid crystal layer includes a first chiral compound and a second chiral compound, and the first chiral compound and the second chiral compound are enantiomeric and separated from each other.

Abstract: A liquid crystal compound of Formula (I) is provided. In Formula (I), A is benzene, naphthalene, pyridine, furan, thiophene or a single bond, D is benzene, naphthalene, pyridine, furan, thiophene or a single bond, R1 and R2 are C1-10 alkyl, C1-10 alkoxy, fluoro or trifluoro methyl, E is benzene, naphthalene, pyridine, furan, thiophene or a single bond, W is —CO—O—, —O—CO—, —O—, —CH2—CH2—, —CH?CH—, —CH2—O— or a single bond, Z is benzene, naphthalene, pyridine, furan, thiophene or a single bond, Y is hydrogen, methyl, ethyl or propyl, m is 0, 1 or 2, p is 0, 1 or 2, r is 0, 1 or 2, q is 0, 1 or 2, and n is 0, 1, 2 or 3. The invention also provides a liquid crystal display and photochromic material including the compound.

Abstract: A liquid crystal compound of Formula (I) is provided. In Formula (I), A is benzene, naphthalene, pyridine, furan, thiophene or a single bond, D is benzene, naphthalene, pyridine, furan, thiophene or a single bond, R1 and R2 are C1-10 alkyl, C1-10 alkoxy, fluoro or trifluoro methyl, E is benzene, naphthalene, pyridine, furan, thiophene or a single bond, W is —CO—O—, —O—CO—, —O—, —CH2—CH2—, —CH?CH—, —CH2—O— or a single bond, Z is benzene, naphthalene, pyridine, furan, thiophene or a single bond, Y is hydrogen, methyl, ethyl or propyl, m is 0, 1 or 2, p is 0, 1 or 2, r is 0, 1 or 2, q is 0, 1 or 2, and n is 0, 1, 2 or 3. The invention also provides a liquid crystal display and photochromic material including the compound.