Liquid crystal medium composition and liquid crystal display panel manufactured with same

A liquid crystal medium composition, comprising:

• a negative liquid crystal material, a polymerizable monomer, a sensitizer, and stabilizer;
• the sensitizer being an organometallic complex that has an amount of 0.01%-5% of total mass of the liquid crystal composition and absorbing ultraviolet light having a wavelength of 300-450 nm, the sensitizer comprises one or more sensitizers represented by the following formula:
• wherein in the formula, M represents central atom that is a metal atom and is specifically Ru, Os, Pt, Cu, Fe, Zn, or Ti;
• ED, ring Z1, and ring Z2 are each an organic ligand or a coordination molecule;
• n1, n2, and n3 being integers of 0-8, but not all zero, wherein ED is selected from a group consisting of S═C═N—, NC—, and R—S—, where R of R—S—is H atom or C1-12 linear or branched alkyl, one or more of non-adjacent CH2 of the linear or branched alkyl is substitutable by O atom;
• ring Z1 represents a five-membered heterocyclic ligand, which is selected from a group consisting of a saturated structure an unsaturated structure, and a five-membered heterocyclic ring containing an aromatic ring and in which X is heteroatom and is specifically one or more of N, O, and S, R1 represents a substituted moiety on the ring Z1, which is H, or C1-12 linear alkyl or branched alkyl, in which one or more of non-adjacent CH2 on the linear alkyl or branched alkyl is substitutable by O atom, substituted moiety R1 comprises other ring structures containing heteroatom, k1 is the number of substituted moiety R1, which is an integral of 0-5;
• and ring Z2 represents a six-membered heterocyclic ligand, which is selected from a group consisting of a saturated structure, an unsaturated structure, or a six-membered heterocyclic ring containing aromatic ring and in which Y is heteroatom and is specifically one or more of N, O, and S, R2 represents a substituted moiety on the ring Z2, which is H, or C1-12 linear alkyl or branched alkyl, in which one or more of non-adjacent CH2 on the linear alkyl or branched alkyl is substitutable by O atom, substituted moiety R2 comprises other ring structures containing heteroatom, k2 is the number of substituted moiety R2, which is an integral of 0-5;
• wherein the polymerizable monomer reacts with ultraviolet light having a wavelength of 300-450 nml;
• wherein the negative liquid crystal material comprises at least one liquid crystal compound represented by the following formula:
• wherein in the formula,
• is
• X represents substituted moieties bound to ring structures, n is an integral of 1-4, n being identical or different for different ring structures, n>1 indicating an individual ring structure has a plurality of substituted moieties X that are identical or different, X being —H, —F, —Cl, —Br, —I, —CN, or —NO2;
• Y1 and Y2 are —R, —O—R, —CO—R, —OCO—R, —COO—R, or —(OCH2CH2)n1CH3, R representing a C1-12 linear or branched alkyl, n1 being an integral of 1-5, Y1 and Y2 being identical or different;
• wherein the polymerizable monomer comprises at least one polymerizable compound represented by the following formula:
• P1-L1-X-L2-P2 Formula III
• wherein P1 and P2 represent polymerizable moieties which are identical or different and are methacrylate, acrylate, ethenyl, ethyleneoxy or epoxy groups;
• L1 and L2 represent linking moieties which are identical or different and are —C—C—, —O—, —COO—, —OCO—, —CH2O—, —OCH2O—, —O(CH2)2O—, —COCH2— or methylenyl;
• X represents a core moiety which is
• wherein X represents substituted moieties bound to the rings, n is an integral of 1-4, multiple values of n in any above formula being identical or different, n>1 indicating an individual ring structure has a plurality of substituted moieties X that are identical or different, the substituted moiety represented by X is:
• —H, —F, —Cl, —Br, —I, —CN or —NO2;
• wherein the stabilizer comprises at least one stabilizer compound represented by the following formula:
• wherein R1 represents a C1-9 linear or branched alkyl, n is an integral of 1-4, n>1 indicates an individual benezene ring structure has a plurality of substituted moieties R1 which are identical or different;
• R2 represents a C1-36 linear or branched alkyl;
• L is —C—C—, —O—, —COO—, —OCO—, —CH2O—, —OCH2O—, —O(CH2)2O—, —COCH2— or methylenyl;
• wherein the negative liquid crystal material has an amount of 90%-99% of the total mass of the liquid crystal medium composition, the polymerizable monomer having an amount of 0.1%-5% of the total mass of the liquid crystal medium composition, the sensitizer having an amount of 5 ppm-1000 ppm of the total mass of the liquid crystal medium composition, the stabilizer having an amount of 5 ppm-500 ppm of the total mass of the liquid crystal medium composition;
• and
• wherein the polymerizable monomer has an amount of 0.1%-1% of the total mass of the liquid crystal medium composition.