Retardation film for IPS mode, polarizing plate comprising same, and liquid crystal display device comprising same
AssigneeSamsung SDI Co., Ltd.
InventorsSang Hum Lee, Kyung Il Sul, Jung Hun You
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Abstract
Disclosed herein are a retardation film for IPS mode, a polarizing plate including the same, and a liquid crystal display including the same. The retardation film for IPS mode has an out-of-plane retardation at a wavelength of 450 nm (Rth (450) of about −80 nm to 0 nm, an out-of-plane retardation at a wavelength of 550 nm (Rth (550) of about −60 nm to 10 nm, an out-of-plane retardation at a wavelength of 650 nm (Rth (650) of about −60 nm to 10 nm, and an in-plane retardation (Re) at a wavelength of 550 nm of about 0 nm to 10 nm.
Claims16
A retardation film for IPS mode, wherein:
- the retardation film has an out-of-plane retardation at a wavelength of 450 nm (Rth (450)) of about −30 nm to 0 nm, an out-of-plane retardation at a wavelength of 550 nm (Rth (550)) of about −10 nm to 0 nm, an out-of-plane retardation at a wavelength of 650 nm (Rth (650)) of about −5 nm to 10 nm, and an in-plane retardation (Re) at a wavelength of 550 nm of about 0 nm to 10 nm, and
- wherein Rth (450) is less than Rth (550), |Rth(450)|/|Rth(550)| is from about 3 to 8, and |Rth(650)|/|Rth(550)| is about 0 to 2.
A retardation film for IPS mode, wherein:
- the retardation film has an out-of-plane retardation at a wavelength of 450 nm (Rth (450)) of about −80 nm to −33 nm, an out-of-plane retardation at a wavelength of 550 nm (Rth (550)) of about −60 nm to −32 nm, an out-of-plane retardation at a wavelength of 650 nm (Rth (650)) of about −60 nm to −31 nm, and an in-plane retardation (Re) at a wavelength of 550 nm of about 0 nm to 10 nm, and
- wherein Rth (450) is less than Rth (550), |Rth(450)|/|Rth(550)| is greater than 0 to less than or equal to 2, and |Rth(650)|/|Rth(550)| is greater than 0 to less than or equal to 2.
Dependencies are inferred from the claim text.