US 9,812,670 B2
Polarization film, antireflection film, and display device
Hyun-Seok Choi, Anyang-si (KR); Sangah Gam, Seoul (KR); and Seong-Jun Yoon, Yongin-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jun. 26, 2015, as Appl. No. 14/751,958.
Claims priority of application No. 10-2014-0080186 (KR), filed on Jun. 27, 2014.
Prior Publication US 2015/0380689 A1, Dec. 31, 2015
Int. Cl. H01L 51/52 (2006.01); G02B 1/14 (2015.01); G02B 5/30 (2006.01); G02B 1/111 (2015.01); H01L 51/50 (2006.01); H01L 51/00 (2006.01); G02F 1/1335 (2006.01)
CPC H01L 51/5281 (2013.01) [G02B 1/111 (2013.01); G02B 1/14 (2015.01); G02B 5/305 (2013.01); G02B 5/3033 (2013.01); G02B 5/3083 (2013.01); H01L 51/5012 (2013.01); H01L 51/5256 (2013.01); G02F 2001/133541 (2013.01); H01L 51/004 (2013.01); H01L 51/0035 (2013.01); H01L 51/0036 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A polarization film comprising:
a polarization layer comprising a melt-blend of a hydrophobic polymer and a dichroic dye,
the melt-blend being a product obtained by melting the hydrophobic polymer and the dichroic dye at a temperature of greater than or equal to the melting point of the hydrophobic polymer without a solvent,
the hydrophobic polymer comprising a polyolefin, a polyamide, a polyester, a polyacryl, polystyrene, a copolymer thereof, or a combination thereof, and
the dichroic dye having a maximum absorption wavelength in a range of about 380 nanometers to about 780 nanometers; and
protective layers disposed on both of opposite surfaces of the polarization layer, the protective layers having a cross-linking structure.