Samsung Sdi Co., Inc.

Wan Taek Hong

Seong Hoon Lee

Seung Mi Shin

A Ra Jo

Seon Gyeong Jeong

Beom Deok Lee

Bong Choon Kim

Jun Mo Koo

Boem Deok Lee

Disclosed are an optical laminate and an optical display apparatus including the same. The optical laminate includes: a polarizer; and a retardation layer stacked on a light incidence surface of the polarizer, wherein the retardation layer includes a positive C layer, the positive C layer having an in-plane retardation of 0 nm to 30 nm and an out-of-plane retardation of −50 nm to −15 nm at a wavelength of 550 nm, and the in-plane retardation of the positive C layer at a wavelength of 550 nm and an absolute value of a tilted angle of a slow axis of the positive C layer with respect to a light absorption axis of the polarizer satisfy Relation 1.

Optical laminate and optical display apparatus comprising the same

Provided are an optical display device module and an optical display device including same, the optical display device module comprising an optical display device panel, and a first polarizing plate arranged on at least one surface of the optical display device panel, wherein the first polarizing plate includes a first polarizer and a first phase difference layer arranged between the first polarizer and the optical display device panel, the first phase difference layer includes at least a positive C layer, the optical display device panel includes a second phase difference layer therein, and the second phase difference layer and the first phase difference layer satisfy formula 1 and formula 2.

Optical display device module and optical display device including same

An optical laminate and an optical display apparatus including the same are provided. An optical laminate includes: a polarizer; and a first protective layer and a retardation layer stacked on a light incidence surface of the polarizer, the retardation layer including at least a positive C layer, and a laminate of the first protective layer and the retardation layer having a photoelastic coefficient of about 2×10cm/dyne or less and a modulus of about 2,000 MPa to about 4,000 MPa, as measured in an absorption axis direction of the polarizer in the optical laminate.

A polarizing plate and an optical display including the same are provided. A polarizing plate includes: a polarizer; and a first protective layer and a second protective layer sequentially stacked on a surface of the polarizer, and the second protective layer includes a positive C retardation layer, the positive C retardation layer having a thickness of about 10 μm or less, an index of refraction of about 1.50 to about 1.55, and a glass transition temperature (Tg) of about 150° C. to about 250° C.

Polarizing plate and optical display comprising the same

A polarizing plate for IPS mode and an optical display apparatus including the same are provided. A polarizing plate includes: a polarizer; a first protective layer on an upper surface of the polarizer; and a second protective layer on a lower surface of the polarizer, wherein, assuming an axis of the polarizer having a high index of refraction in an in-plane direction of the polarizer is a reference axis (0&#xb0;), an angle of an axis of the first protective layer having a low index of refraction in the in-plane direction thereof is in a range of about &#x2212;5&#xb0; to +5&#xb0;, the first protective layer has an in-plane retardation Re of about 5,000 nm or more at a wavelength of 550 nm, the second protective layer includes a positive C plate layer, and the second protective layer satisfies at least one of Relations 1 and 2.

Polarizing plate for in-plane switching mode and optical display apparatus comprising the same

A polarizing plate includes: a bonding layer; a polarizer on a first surface of the bonding layer; and a polarizer protective film on a second surface of the bonding layer, and a ratio (&#x3b2;/&#x3b1;) of a measured tensile modulus (&#x3b2;), in a transverse direction (TD), of the polarizing plate to a sum (&#x3b1;) of a measured thickness (&#x3b1;) of the polarizer and a measured thickness (&#x3b1;) of the polarizer protective film is greater than 0.27 and less than 0.50, and a ratio (&#x3b2;/&#x3b2;) of a measured tensile modulus (&#x3b2;), in the TD, of the polarizer to a measured tensile modulus (&#x3b2;), in the TD, of the polarizer protective film is greater than 0 and less than 0.2.

Growing community of inventors

Suwon-si, South Korea

Wan Taek Hong