Patent application number | Description | Published |
20130120693 | POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - A polarizing plate includes a polarizer and a protective film facing a surface of the polarizer, the protective film having a water vapor transmission rate (WVTR) of about 100 g/m | 05-16-2013 |
20130162930 | POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - A polarizing plate includes a polarizer and at least one protective film on at least one side of the polarizer. The protective film has an in-plane retardation (Re) of greater than about 10,000 nm at a wavelength of 550 nm, as calculated by Re=(nx−ny)×d, wherein nx and ny are indexes of refraction in x-axis and y-axis directions of the protective film, respectively, and d is a thickness of the protective film. | 06-27-2013 |
20130162935 | POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - A polarizing plate includes a polarizer; and a protective film attached to at least one side of the polarizer via an adhesive layer. The adhesive layer is formed of a water-based adhesive including a polyvinyl alcohol resin, a zirconium compound, and an imine crosslinking agent. The polarizing plate has a variation in light transmittance (|B-A|) from 0% to about 0.25% at wavelengths from 400 nm to 780 nm, where A is an average value of initial light transmittance of the polarizing plate at wavelengths from 400 nm to 780 nm, and B is an average value of light transmittance of the polarizing plate at wavelengths from 400 nm to 780 nm measured after the polarizing plate has been dipped in water of 25° C. for 3 hours, followed by drying at 25° C. for 2 hours. | 06-27-2013 |
20130170033 | POLARIZING PLATE AND OPTICAL DISPLAY DEVICE INCLUDING THE SAME - A polarizing plate includes a polarizer, a first protective film attached to one side of the polarizer, and a second protective film attached to another side of the polarizer. A ratio between coefficients of thermal expansion of the first and second protective films, measured in a transverse direction (TD) at a temperature from about 25° C. to about 120° C., ranges from about 0.5 to about 2. A ratio between coefficients of thermal expansion of the first and second protective films measured in a machine direction (MD) at a temperature from about 25° C. to about 120° C. ranges from about 0.5 to about 2. | 07-04-2013 |
20140168768 | POLARIZING PLATE AND OPTICAL DISPLAY APPARATUS INCLUDING THE SAME - A polarizing plate includes a polarizer, a protective film on an upper surface of the polarizer, a half-wavelength (λ/2) retardation film on a lower surface of the polarizer, an adhesive layer on a lower surface of the half-wavelength (λ/2) retardation film, and a quarter-wavelength (λ/4) retardation film on a lower surface of the adhesive layer. The half-wavelength (λ/2) retardation film may have a refractive index n1, the quarter-wavelength (λ/4) retardation film may have a refractive index n2, and the adhesive layer may have a refractive index n in the range of n106-19-2014 | |
20140168769 | POLARIZING PLATE, METHOD FOR PREPARING THE SAME, AND OPTICAL DISPLAY APPARATUS INCLUDING THE SAME - A polarizing plate includes a polarizer having absorption and transmission axes, a protective film on an upper surface of the polarizer, a half-wavelength (λ/2) retardation film on a lower surface of the polarizer, an adhesive layer on a lower surface of the half-wavelength (λ/2) retardation film, and a quarter-wavelength (λ/4) retardation film on a lower surface of the adhesive layer. An absolute orthogonal b-coordinate value based on a CIELAB color coordinate system of the polarizing plate may be approximately 3 or less when the polarizing plate is stacked with a reference polarizing plate having a degree of polarization of at least 99.9% such that an angle between the absorption axis of the polarizer and an absorption axis of a polarizer of the reference polarizing plate or an angle between the transmission axis of the polarizer and a transmission axis of the polarizer of the reference polarizing plate is 90°. | 06-19-2014 |