| US 7,499,126 B2 | ||
| Polarizing film and display device having the same | ||
| Yeon-Sik Ham, Suwon-si (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd., (Korea, Republic of) | ||
| Filed on Jul. 31, 2006, as Appl. No. 11/496,220. | ||
| Claims priority of application No. 10-2005-0072096 (KR), filed on Aug. 08, 2005; and application No. 10-2006-0070518 (KR), filed on Jul. 27, 2006. | ||
| Prior Publication US 2007/0030418 A1, Feb. 08, 2007 | ||
| Int. Cl. G02F 1/1335 (2006.01); G02B 27/28 (2006.01) | ||
| U.S. Cl. 349—96 [349/106; 349/104; 359/483; 359/502] | 16 Claims |
| 1. A polarizing film comprising:
a first protecting layer;
a polarizing layer formed on the first protecting layer; and
a second protecting layer formed on the polarizing layer, the second protecting layer having a retardation value Rth of about
110 nm to about 200 nm along a direction corresponding to a thickness of the second protecting layer (thickness-wise direction),
wherein the retardation value Rth along a thickness-wise direction is expressed by the following equation:
Rth=d(nx−nz),
wherein ‘d’ represents the thickness of the second protecting layer, nx represents a refractive index along an x-direction, and nz represents a refractive index along a z-direction.
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