Samsung Sdi Co., Inc.

Cheil Industries Inc.

Mun Bo Ko

Ki Yong Kim

Sung Man Cho

Eun Sol Cho

Kyoung Ah Oh

Yong Woon Kim

Ki Ho Park

Yeon Ju Na

Jin Joo Kim

Dong Yoon Shin

Tae Joon Park

Eun Su Park

Ri Ra Jung

Eun Hwan Jeong

Han Saem Kang

Eun Kyeong Seo

Su Yeon Lee

Do Won Kim

Na Young Kim

Min Jung Kim

Jung Kyu Lee

Provided are a polarizer comprising a polyvinyl alcohol-based film and having an endothermic peak of 50° C. to 60° C. when measured by differential scanning calorimetry at a temperature increase rate of 10° C./min; a polarizing plate comprising a polarizer and a first protective film and a second protective film laminated on one surface and the other surface of the polarizer, respectively, and having an initial shrinkage initiation temperature greater than 70° C. and less than or equal to 90° C. during thermomechanical analysis; and an optical display device comprising same.

Polarizer, polarizing plate, and optical display device comprising same

A polarizing plate and an optical display device comprising the same are disclosed. The polarizing plate includes a polarizer comprising a zinc cation and a unit represented by the Formula 1, and the polarizing plate has a chrominance variation ΔE of about 5.2 or less, as calculated by Equation 1.

Polarizing plate and optical display device including same

A polarizing plate and an optical display comprising the same are disclosed. The polarizing plate includes: a polarizer and a first protective layer stacked on one surface of the polarizer via a bonding layer, wherein the bonding layer is formed of a bonding layer composition including an epoxy compound and a photocationic initiator, and the polarizing plate has a chrominance variation &#x394;E of 5.2 or less, as calculated by Equation 1.

Polarizing plate and optical display device comprising same

Provided are a polarizing plate for a light emitting display device and the light emitting display device including same, the polarizing plate for a light emitting display device having a first adhesive film, a second protective layer, a polarizer, and a first protective layer sequentially laminated therein. The polarizing plate includes a UV absorber; and an as value of the polarizing plate is about &#x2212;2.0 to about &#x2212;20.0, and a bs value of the polarizing plate is about 3.0 to about 30.0.

Polarizing plate for light emitting display device and light emitting display device including same

A polarizing plate includes a polarizer; a first retardation film formed on a lower surface of the polarizer and having an in-plane retardation (Ro) at a wavelength of about 550 nm of about 180 nm to about 220 nm; and a second retardation film formed on a lower surface of the first retardation film and having an in-plane retardation (Ro) at a wavelength of about 550 nm of about 50 nm to about 80 nm. The first and second retardation films have thickness direction retardations (Rth) of opposite signs at a wavelength of about 550 nm. An optical display includes the polarizing plate.

Polarizing plate and optical display including the same

A polarizing plate for an OLED includes a polarizer, a protective film on an upper side of the polarizer, and a stack structure of a &#x3bb;/4 reverse dispersion retardation film and a positive C plate on a lower side of the polarizer. An optical display includes the polarizing plate. The polarizing plate minimizes the difference in retardation at all lateral viewing angles, and can therefore reduce or suppress lateral color shift causing the viewer to see different colors, depending on the lateral viewing angle.

Polarizing plate for OLED and optical display 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 (&#x3bb;/2) retardation film on a lower surface of the polarizer, an adhesive layer on a lower surface of the half-wavelength (&#x3bb;/2) retardation film, and a quarter-wavelength (&#x3bb;/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&#xb0;.

Polarizing plate, method for preparing the same, and optical display apparatus including the same

Growing community of inventors

Uiwang-si, South Korea

Mun Bo Ko