C09K2323/031

Fluoro-boron pyrrole liquid crystal compounds containing 8-(bisphenylethynyl)-ester group flexible multiple ring, preparation method and use thereof

A series of 8-(bisphenylethynyl)-ester flexible multiple ring-containing fluoroboron pyrrole liquid crystal dyes are synthesized by introducing a diphenylethynyl rigid structure at position 8 of a boron-dipyrromethene core via a Sonogashira coupling reaction, and a flexible multiple ring such as bicyclohexane, or cholesterol is connected to the biphenylethynyl via an esterification reaction. The dye compounds all have maximum emission wavelengths in methylene chloride concentrated around 525 nm, present green fluorescence, and show good dichroic colour ratios and ordered parameters in E7 liquid crystal. The liquid crystal compounds are in a liquid crystal intermediate phase within the range of 100-280° C., and may be used for manufacturing liquid crystal display products, especially as guest dyes for guest-host mode liquid crystal displays. The response time can be improved and a rapid response effect achieved when the compounds are added to E7 liquid crystal and used for a guest-host display mode.

Polarizer and image display device
11467442 · 2022-10-11 ·

An object of the present invention is to provide a polarizer having a high degree of alignment and an image display device including the polarizer. The polarizer according to the embodiment of the present invention is a polarizer which is formed of a polarizer-forming composition containing a polymer liquid crystal compound and a dichroic material, in which the polymer liquid crystal compound is a thermotropic liquid crystal and a crystalline polymer, and the polymer liquid crystal compound and the dichroic material are horizontally aligned.

Low refractive layer and electronic device including the same

A low refractive layer includes a plurality of hollow inorganic particles and a matrix between the hollow inorganic particles, and capable of exhibiting a good refractive index and improved durability by enhancing the weight ratio of the hollow inorganic particles to the matrix. An electronic device according to an embodiment of the inventive concept including the low refractive layer may exhibit improved reliability and good display quality.

FORMULATIONS OF BIOREACHABLE DOPANTS FOR LIQUID CRYSTALS

The present disclosure relates to formulations having one, two, or more chiral dopants, as well as materials and methods including such formulations. In particular instances, the formulation can include an achiral host, such as a nematic substance.

LIQUID CRYSTAL DISPLAY DEVICE AND DRIVING METHOD THEREOF
20170363889 · 2017-12-21 ·

A liquid crystal display device, being widely used in the fields such as electronic tags, electronic papers, business cards and flexible display screens or the like, and a driving method for the liquid crystal display device. The liquid crystal display device has an upper substrate, a lower substrate and one or more layers of an encapsulated liquid crystal sandwiched between the upper substrate and the lower substrate. The layers of the encapsulated liquid crystal include two different liquid crystal microcapsules uniformly mixed. Combined with a driving method of a combination of high-low voltage and high-low temperature, a color display effect of high contrast and repeatable writing can be achieved.

Polarizing plate and optical display device comprising same

Provided are a polarizing plate and a display device comprising the same, the polarizing plate comprising: a polarizing film; a polarizing film protection film arranged on at least one surface of the polarizing film; an adhesive layer interposed between the polarizing film and the polarizing film protection film; and a printing layer impregnated in the adhesive layer and formed on at least part of the edge of the adhesive layer, wherein a curve ensuring portion is formed on at least one surface of the printing layer.

COLOR MATERIAL DISPERSION LIQUID FOR COLOR FILTER, COLOR RESIN COMPOSITION FOR COLOR FILTER, COLOR MATERIAL FOR COLOR FILTER, COLOR FILTER, LIQUID CRYSTAL DISPLAY DEVICE, AND LIGHT-EMITTING DISPLAY DEVICE

Disclosed is a color material dispersion liquid for a color filter, the dispersion liquid having excellent dispersibility and being capable of forming a high-contrast, high-luminance coating film; a color resin composition for a color filter, the composition having excellent dispersibility and being capable of forming a high-contrast, high-luminance coating film; a color material with excellent dispersibility; a high-contrast and high-luminance color filter; a liquid crystal display device including the color filter, and a light-emitting display device including the color filter. The color material dispersion liquid for a color filter, includes: (A) a color material, (B) a dispersant and (C) a solvent, wherein the color material (A) contains a zirconium lake color material of an acid dye.

Optically anisotropic film stack including solid crystal and fabrication method thereof

A film stack includes a plurality of first films and a plurality of second films alternately stacked. At least one second film of the plurality of second films includes a solid crystal including crystal molecules aligned in a predetermined alignment direction. At least one first film of the plurality of first films includes an alignment structure configured to at least partially align the crystal molecules of the solid crystal in the predetermined alignment direction.

Laminate, organic electroluminescent device, and liquid crystal display device

Provided is a laminate, which has a polarizer and an optically anisotropic layer and is excellent in thermal durability, and an organic electroluminescent device and a liquid crystal display device, which include the laminate. The laminate has two substrates and a polarizing plate disposed between the two substrates, in which the polarizing plate has a polarizer and an optically anisotropic layer, the polarizer contains a polyvinyl alcohol-based resin, the optically anisotropic layer is formed of a composition containing a polymerizable liquid crystal compound represented by General Formula (I): L.sub.1-G.sub.1-D.sub.1-Ar-D.sub.2-G.sub.2-L.sub.2, a moisture permeability of the substrate is 10.sup.−3 g/m.sup.2.Math.day or less, and a water content of the polarizing plate is 3.0 g/m.sup.2 or less.

FILM FOR ENHANCING COLOR PURITY AND CORRECTING BRIGHTNESS FOR LIQUID CRYSTAL DISPLAY DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE COMPRISING SAME
20170329179 · 2017-11-16 ·

The present invention relates to a film capable of enhancing color purity and correcting brightness for a liquid crystal display device, and a liquid crystal display device comprising the same, and can provide a liquid crystal display device having enhanced color gamut and color purity by introducing, to the inside of an adhesive layer or a coating layer of the liquid crystal display device, a combination of an absorption dye for absorbing a specific wavelength band and a fluorescent dye absorbing a specific wavelength band and emitting light, thereby blocking unnecessary wavelengths except for RGB wavelengths.