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US 10,883,049 B2Granted
Liquid crystal display panel
AssigneeSamsung Display Co., Ltd.
InventorsSung Hwan Hong, Mi Suk Kim, Tae Ho Kim, Keun Chan Oh, Chang Hun Lee
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Abstract
A liquid crystal display (LCD) panel includes a first substrate, a second substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The liquid crystal layer includes liquid crystals with negative dielectric anisotropy and a hindered amine light stabilizer (HALS).
Claims3
An LCD panel, comprising:
- a first substrate;
- a second substrate;
- and
- a liquid crystal layer disposed between the first substrate and the second substrate,
- wherein the liquid crystal layer includes neutral liquid crystal compound and polarized liquid crystal compounds with negative dielectric anisotropy,
- wherein the polarized liquid crystal compounds with negative dielectric anisotropy include a mixture of compounds of Formulas (4) and (5):
- where X is an alkyl group with two to five carbon atoms and Y is an alkyl, alkenyl or alkoxy group with two to five carbon atoms;
- wherein both of the polarized liquid crystal compounds with negative dielectric anisotropy satisfying Formulas (4) and (5) include at least one compound containing an alkoxy group in which Y is an alkoxy group,
- wherein at least one of the polarized liquid crystal compounds with negative dielectric anisotropy satisfying Formulas (4) and (5) include at least one compound in which Y is an alkenyl group,
- wherein a weight of the polarized liquid crystal compounds containing the alkoxy group ranges from 50% to 60% of the total weight of the neutral liquid crystal compound and the polarized liquid crystal compounds with negative dielectric anisotropy, and
- wherein the liquid crystal layer further includes a hindered amine light stabilizer (HALS), wherein the HALS includes at least one unit compound of Formula (1):
- wherein R1 is C1-C18 alkyl, cyclohexyl acrylate, methacrylate, or C7-C18 alkyl aryl, R2 is H, C1-C18 alkyl, cyclohexyl acrylate, methacrylate, or a C4-C8 cycloalkyl residue by two R2s bonded to the same carbon atom, and R3 is a hydroxyl group (—OH), a C1-C18 alkoxy group, a C4-C8 cycloalkoxy group, an alkoxy group of an aromatic cyclic compound, or an alkoxy group of a heteroaromatic compound.
9 more elements
Dependencies are inferred from the claim text.