Optical member, display device including the same, method for manufacturing the same

Abstract

Disclosed are an optical sheet, a display device including the same, and a method for manufacturing the same. The optical sheet includes a host layer, a plurality of wavelength conversion particles in the host layer, and a plurality of optical path change particles in the host layer.

1 .- 18 . (canceled) 
     
     
         19 . An optical member comprising:
 a lower substrate;   an upper substrate;   a host layer sandwiched between the upper and lower substrates;   a plurality of quantum dots in the host layer;   a plurality of optical path change particles in the host layer;   a first inorganic protective layer provided below the lower substrate; and   a second inorganic protective layer provided below the upper substrate,   wherein the first and second inorganic protective layer comprise silicon oxide.   
     
     
         20 . The optical member of  claim 19 , wherein the wavelength conversion particles convert a wavelength of incident light. 
     
     
         21 . The optical member of  claim 19 , wherein each wavelength conversion particle has a diameter of about 1 nm to about 10 nm, and each optical path change particle has a diameter of about 1 μm to about 10 μm. 
     
     
         22 . The optical member of  claim 19 , wherein the host layer includes silicon resin. 
     
     
         23 . The optical member of  claim 19 , wherein a difference in a refractive index between each optical path change particle and the host layer is in a range of about 0.3 to about 1.5. 
     
     
         24 . The optical member of  claim 19 , wherein each optical path change particle includes an inorganic material. 
     
     
         25 . The optical member of  claim 19 , wherein each optical path change particle includes a metallic oxide. 
     
     
         26 . The optical member of  claim 25 , wherein the optical path change particle includes a material selected from the group consisting of titanium oxide and aluminum oxide. 
     
     
         27 . The optical member of  claim 19 , wherein the host layer includes thermoplastic resin. 
     
     
         28 . The optical member of  claim 27 , wherein the host layer includes a material selected from the group consisting of polyacrylonitrile, polyvinylidene chloride, and ethylene vinyl alcohol. 
     
     
         29 . A display device comprising: an optical member including a lower substrate, an upper substrate, a host layer, a plurality of quantum dots in the host layer, a plurality of optical path change particles in the host layer, a first inorganic protective layer provided below the lower substrate, and a second inorganic protective layer provided below the upper substrate, wherein the first and second inorganic protective layer comprise silicon oxide. 
     
     
         30 . The display device of  claim 29 , further comprising:
 a light source to output light to the optical member; and   a display panel provided above the optical member to receive light converted by the optical member.