Abstract: The present invention relates to a polarizing plate and a liquid crystal display device. In the present invention, the polarizing plate is lightweight and has a small thickness and excellent properties including durability, water resistance, workability, pressure-sensitive adhesion and light leakage prevention ability; and the liquid crystal display device including the same are provided.

Abstract: Provided are a polarizer, a manufacturing method thereof, and an image display device employing the same. The polarizer includes a polarization element, a first adhesive layer formed on one side of the polarization element, a second adhesive layer formed on the other side of the polarization element, a protective film attached to the first adhesive layer, and an adhesion layer formed under the second adhesive layer.

Abstract: The present invention relates to a polarizer in which contents of zinc, boron, and potassium are controlled to be within a certain range, a polarizing plate, and an image display device having excellent durability and heat resistance, and a method of manufacturing the polarizer. In one embodiment, the present invention provides a polarizer, in which the value of zinc content (wt. %)×boron content (wt. %)/potassium content (wt. %) is 0.1 to 4.0, boron content is 1.0 wt. % to 5.0 wt. % and potassium content is 0.3 wt. % to 2.0 wt. %, based on the weight of the polarizer, a polarizing plate and an image display device including the same. Further, the present invention provides a method of manufacturing a polarizer, the method including at least a dyeing process, a cross-linking process, a stretching process and a washing process.

Abstract: A polarizing plate, a fabrication method thereof, and a display device using the same are provided. The polarizing plate includes a polarizing element, a first adhesive layer formed on one surface of the polarizing element, a second adhesive layer formed on the other surface of the polarizing element, a protective film attached to an upper portion of the first adhesive layer, a bonding layer attached to a lower portion of the second adhesive layer, and a luminance enhancement film attached to the bonding layer.

Abstract: There is provided a method for producing a polarizer having improved cross transmittance. The method for producing a polarizer includes: dyeing a polyvinyl alcohol (PVA)-based film with molecular iodine by immersing the PVA-based film in an aqueous iodine solution (a dyeing step); absorbing the molecular iodine into the PVA-based film using an aqueous boric acid solution (a cross-linking step); arranging the molecular iodine in the certain direction by stretching the PVA-based film in a certain direction (an stretching step); and drying, in an oven, the PVA-based film in which the molecular iodine is oriented; wherein a phosphate compound is added to the iodine aqueous solution (the dyeing step) or the aqueous boric acid solution (the stretching step) so that a weight ratio of the boric acid: the phosphate compound is in a range of 1:0.1 to 1:10.

Abstract: Provided are polarizer, polarizing plate, and image display device having excellent durability and heat resistance in which contents of zinc, boron, and iodine in the polarizer are controlled in a specific range. According to an embodiment of the present invention, a polarizer having a value of zinc content (wt %)×boron content (wt %)/iodine content (wt %) in a range of about 0.1 to about 3.0 in all positions in which a depth (D) from a surface to a center of the polarizer is 0?D?200 nm, polarizing plate and image display device including the polarizer are provided. The polarizer, polarizing plate, and image display device according to the present invention have excellent durability and heat resistance in which initial cross transmittance and color are maintained and transmittance, degree of polarization, and color are maintained even under high temperature conditions.

Abstract: Provided are a modified polyvinyl alcohol-based resin with an acrylic group introduced thereto and including a hydroxyl group formed during the introduction of the acrylic group, an adhesive including the modified polyvinyl alcohol-based resin having excellent adhesion, humidity resistance, and water resistance, an adhesive including a polyvinyl alcohol-based resin, and a compound having an epoxy group, and an acrylic group, a polarizing plate and an image display device including the adhesive. The adhesive for a polarizing plate according to an embodiment of the present invention has excellent adhesion, humidity resistance, and water resistance as well as having excellent solubility with respect to water and an increase in adhesion while physical properties of a typical polyvinyl alcohol-based resin are maintained.

Abstract: A composition for forming a photosensitive organic anti-reflective layer includes about 0.5 to about 5 percent by weight of an acid-labile thermal cross-linking agent that is decomposed by an epoxy group and a photo-acid generator, about 10 to about 22 percent by weight of a copolymer resin that includes an acrylate monomer containing anthracene or a methacrylate monomer containing anthracene, about 0.1 to about 1 percent by weight of a photo-acid generator, and a solvent.

Abstract: There is provided a method of producing a polyvinyl alcohol (PVA) film polarizer having an excellent durability, the method comprising dyeing, cross-linking, stretching, and drying, wherein additives containing phosphorus is inputted into one or more of the dyeing, the cross-linking, and the stretching. In this case, the additives containing phosphorus may be selected from a group consisting of a phosphoric acid, potassium phosphate monobasic, potassium phosphate dibasic, magnesium phosphate dibasic, sodium phosphate monobasic, and ammonium phosphate monobasic. An amount of the additives containing phosphorus in an added solution may be 0.01 to 15 wt %. As described above, when inputting the additives containing phosphorus while producing a polarizer, cross-linking between iodine and a polymer matrix becomes strong due to the phosphorus contained in the additives, thereby producing a polarizer having an excellent durability, and particularly, an excellent thermal stability.

Abstract: There is provided a method for producing a polarizer having improved cross transmittance. The method for producing a polarizer includes: dyeing a polyvinyl alcohol (PVA)-based film with molecular iodine by immersing the PVA-based film in an aqueous iodine solution (a dyeing step); absorbing the molecular iodine into the PVA-based film using an aqueous boric acid solution (a cross-linking step); arranging the molecular iodine in the certain direction by stretching the PVA-based film in a certain direction (an stretching step); and drying, in an oven, the PVA-based film in which the molecular iodine is oriented; wherein a phosphate compound is added to the iodine aqueous solution (the dyeing step) or the aqueous boric acid solution(the stretching step) so that a weight ratio of the boric acid:the phosphate compound is in a range of 1:0.1 to 1:10.

Abstract: A composition for forming a photosensitive organic anti-reflective layer includes about 0.5 to about 5 percent by weight of an acid-labile thermal cross-linking agent that is decomposed by an epoxy group and a photo-acid generator, about 10 to about 22 percent by weight of a copolymer resin that includes an acrylate monomer containing anthracene or a methacrylate monomer containing anthracene, about 0.1 to about 1 percent by weight of a photo-acid generator, and a solvent.