Abstract:
The present invention relates to a polarizing plate characterized in that pressures-sensitive adhesives used in the upper and lower polarizing plates have different elastic properties and a liquid crystal display device comprising the same. More specifically, the present invention relates to a polarizing plate with improved light leakage phenomenon in accordance with bend of liquid crystal panels, characterized in that as slid distances of pressure-sensitive adhesives on the polarizing plate having the pressure-sensitive adhesive layer formed thereon and bonded to a glass plate with a contact area of 1 cm×1 cm at the time of applying a load of 1,000 gf at room temperature (25° C.) for 1,000 seconds, the difference between the slid distance X1 of pressure-sensitive adhesive for the upper polarizing plate and the slid distance X2 of pressure-sensitive adhesive for the lower polarizing plate is 50 to 500 μm.
Abstract:
An adhesive composition for polarizing plates, a polarizing plate using the same, and an optical member including the same, the adhesive composition including an epoxy compound, a (meth)acrylic compound, and a polyfunctional thiol compound.
Abstract:
The invention relates to an acrylic adhesive composition, more particularly, to an adhesive composition which: specifies the contents of a (meth)acrylic ester-based monomer and an aromatic group-containing monomer of an acrylic copolymer as a composition having little or no difference of birefringence; has excellent durability; and can reduce light leakage due to flexure by mixing a crosslinkable functional group-containing acrylic copolymer (A) and an acrylic copolymer (B) which does not contain the crosslinkable functional group, in a ratio of 1:9 to 5:5.
Abstract:
The present invention relates to an acrylic pressure-sensitive adhesive composition, and more precisely, an acrylic pressure-sensitive adhesive composition which is prepared by copolymerization of a vinyl and/or acrylic monomer having a cross-linkable functional group and comprises 100 weight part of a high molecular weight (meth)acrylic copolymer which is prepared by copolymerization of a vinyl and/or acrylic monomer harboring a cross-linkable functional group and whose weight average molecular weight is 40˜100 times as high as the entanglement molecular weight, 5˜50 weight part of a low molecular weight (meth)acrylic copolymer which does not contain a cross-linkable functional group and whose weight average molecular weight is 2˜15 times as high as entanglement molecular weight, and 0.01˜10 weight part of a multifunctional cross-linking agent. The acrylic pressure-sensitive adhesive composition of the present invention has reliable adhesion durability under high temperature and high humidity and at the same time reduces the light leakage due to the stress relaxation and enhances the cutting-efficiency of a polarizing plate.
Abstract:
According to the present invention, an adhesive film having a phase-difference is characterized by a phase difference value of 25° C./55% RH at a thickness of 20 μm being approximately 20 nm to approximately 150 nm, and 1 rad/s storage modulus by a frequency seep test at 30° C. being approximately 105 dyne/cm2 to approximately 109 dyne/cm2. The adhesive film having a phase-difference exhibits minimal entangling and retains a stretched structure under high temperature and humidity so as to provide an optical member that has decreased light leakage, retains superior durability, reworkability, and adhesion, and has an excellent balance of physical properties.
Abstract translation:根据本发明,具有相位差的粘合膜的特征在于,厚度为20μm的相位差为25℃/ 55%RH,为约20nm至约150nm,1rad / s 在30℃下的频率渗漏试验的储能模量为约105达因/厘米2至约109达因/厘米2。 具有相位差的粘合膜表现出最小的缠结并且在高温和高湿度下保持拉伸结构,从而提供具有减少的光泄漏,保持优异的耐久性,再加工性和粘附性的光学构件,并且具有优异的物理平衡 属性。
Abstract:
A display member includes a display panel, a first adhesive film on the display panel a transparent conductive layer on the first adhesive film, and a second adhesive film and a window on the second adhesive film. At least one of the first adhesive film and the second adhesive film includes a UV curable adhesive composition including a morpholine group-containing (meth)acrylic copolymer.
Abstract:
The present invention relates to a polarizer having an antistatic layer and a liquid crystal display. The present invention may provide a polarizer which may prevent malfunction of devices by static electricity generated in preparation or use procedures even without using the ITO layer conventionally formed between the upper glass substrate of a liquid crystal panel and a polarizer in a liquid crystal display for an antistatic purpose, and has excellent physical properties such as endurance reliability under high temperature or high humidity condition and optical characteristics, and a liquid crystal display thereof.
Abstract:
The present invention relates to a polarizer having an antistatic layer and a liquid crystal display. The present invention may provide a polarizer which may prevent malfunction of devices by static electricity generated in preparation or use procedures even without using the ITO layer conventionally formed between the upper glass substrate of a liquid crystal panel and a polarizer in a liquid crystal display for an antistatic purpose, and has excellent physical properties such as endurance reliability under high temperature or high humidity condition and optical characteristics, and a liquid crystal display thereof.
Abstract:
The present invention relates to a pressure-sensitive adhesive composition, and a polarizer and a liquid crystal display (LCD) device using the pressure-sensitive adhesive composition, and more particularly, to a pressure-sensitive adhesive composition including (A) an acrylic copolymer and (B) a liquid optically-anisotropic compound having a mesogen core in its structure. The liquid optically-anisotropic compound having a mesogen core in its structure according to the present invention has superior solubility and compatibility with pressure-sensitive adhesive resin, and thus the pressure-sensitive adhesive composition including the liquid optically-anisotropic compound can relax stress caused by shrinkage of the polarizer and effectively compensate negative birefringence. Therefore, the polarizer and the LCD device using the pressure-sensitive adhesive composition can prevent light leakage originating from stress concentration in spite of long-term use.
Abstract:
The present invention relates to a polarizing plate characterized in that pressures-sensitive adhesives used in the upper and lower polarizing plates have different elastic properties and a liquid crystal display device comprising the same. More specifically, the present invention relates to a polarizing plate with improved light leakage phenomenon in accordance with bend of liquid crystal panels, characterized in that as slid distances of pressure-sensitive adhesives on the polarizing plate having the pressure-sensitive adhesive layer formed thereon and bonded to a glass plate with a contact area of 1 cm×1 cm at the time of applying a load of 1,000 gf at room temperature (25° C.) for 1,000 seconds, the difference between the slid distance X1 of pressure-sensitive adhesive for the upper polarizing plate and the slid distance X2 of pressure-sensitive adhesive for the lower polarizing plate is 50 to 500 μm.