06-02-2014 дата публикации
Номер: US20140036200A1
Принадлежит:
LG CHEM, LTD.
The present application relates to a reflective polarizer, a method of manufacturing a reflective polarizer, an optical element, and a display device. The reflective polarizer may have excellent thermal and physical durability even when exposed to a light source and external friction. In addition, the method for manufacturing a reflective polarizer according to the present application may provide a large-sized reflective polarizer without using expensive equipment. 1. A reflective polarizer , comprising:a resin layer; anda convex portion which comprises particles having an average particle diameter of 2 to 100 nm and which forms grids on the resin layer.2. The polarizer according to claim 1 , wherein the resin layer includes a resin having a refractive index of 1.1 to 2.0.3. The polarizer according to claim 1 , wherein the resin included in the resin layer is also present in the convex portion.4. The polarizer according to claim 1 , wherein the convex portion has a porosity represented by Equation 1 of 5 to 50%:{'br': None, 'i': P', 'V', '−V', 'V, 'sub': 1', '2', '1, 'Porosity ()=()/×100\u2003\u2003[Equation 1]'}{'sub': 1', '2, 'where Vrepresents a total volume of the convex portion, and Vrepresents a occupied volume by the particles in the convex portion.'}5. The polarizer according to claim 1 , wherein the particles are silver particles claim 1 , copper particles claim 1 , chromium particles claim 1 , platinum particles claim 1 , gold particles claim 1 , nickel particles claim 1 , palladium particles claim 1 , tungsten particles claim 1 , iridium particles claim 1 , molybdenum particles claim 1 , iron particles claim 1 , titanium particles claim 1 , chromium particles claim 1 , cobalt particles claim 1 , or aluminum particles claim 1 , or an alloy of at least two thereof.6. The polarizer according to claim 1 , wherein the particles are core-shell particles each including a core including a metal or metal alloy claim 1 , and a shell which is present at an outside ...
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