Polarizing plate and optical display apparatus comprising same
AssigneeSamsung SDI Co., Ltd.
InventorsJun Mo KOO, Bong Choon KIM, Jung Hun YOU, Sang Hum LEE, Dong Yoon SHIN
Life of this patent
Estimating the term…
Loading patent…
AssigneeSamsung SDI Co., Ltd.
InventorsJun Mo KOO, Bong Choon KIM, Jung Hun YOU, Sang Hum LEE, Dong Yoon SHIN
Estimating the term…
A polarizing plate and an optical display apparatus including the same. The polarizing plate includes: a polarizer; a first retardation layer; and a second retardation layer, the first retardation layer and the second retardation layer being sequentially laminated on a lower surface of the polarizer, wherein the first retardation layer has a short wavelength dispersion of about 1 to about 1.03, a long wavelength dispersion of about 0.98 to about 1, and an in-plane retardation of about 220 nm to about 270 nm at a wavelength of about 550 nm, the second retardation layer has a short wavelength dispersion of about 1 to about 1.1, a long wavelength dispersion of about 0.96 to about 1, and an in-plane retardation of about 80 nm to about 130 nm at a wavelength of about 550 nm, and a ratio (Rth/d) of out-of-plane retardation (Rth, unit: nm) of the second retardation layer at a wavelength of about 550 nm to thickness (d, unit: μm) of the second retardation layer ranges from about −33 nm/μm to about −15 nm/μm.
A polarizing plate comprising:
Dependencies are inferred from the claim text.