Cantor Colburn LLP
Compensation film and optical film, and display device
A compensation film includes: a first retardation layer including a polymer; a second retardation layer including a liquid crystal having positive birefringence; and a compensation layer including a liquid crystal having a vertical alignment property, where an angle between slow axes of the first and second retardation layers is in a range of about 85 to about 95 degrees, an entire in-plane retardation (Re0) of the first retardation layer, the second retardation layer and the compensation layer for wavelengths of 450 nm, 550 nm and 650 nm satisfy the following inequation: Re0(450 nm)<Re0(550 nm)<Re0(650 nm), an in-plane retardation (Re3) of the compensation layer for the incident light having a wavelength of about 550 nm is in a range of about zero to about 50 nm, and a thickness direction retardation (Rth3) of the compensation layer for the incident light is less than zero.
SAMSUNG ELECTRONICS CO., LTD.
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G02F G02F C09K G02F C09K C09K G02B G02B
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Sang ah Myung Sup Hyung Jun Hyun-Seok
Gam Jung Kim Choi