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OPTICAL MEMBER, ILLUMINATION DEVICE, AND DISPLAY DEVICE

  • US 20150219831A1
  • Filed: 09/18/2013
  • Published: 08/06/2015
  • Est. Priority Date: 09/25/2012
  • Status: Abandoned Application
First Claim
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1. An optical member, comprising:

  • a base material that is transparent and has a sheet-like shape, one surface of the base material being a light-receiving surface where light enters and another surface thereof being a light-exiting surface where light exits;

    an anisotropic light focusing part that is formed over the light-receiving surface of the base material and that exerts, on incident light, a light focusing effect in a light focusing direction along the light-receiving surface of the base material, but does not exert a light focusing effect in a non-light focusing direction along the light-receiving surface of the base material, said non-light focusing direction being perpendicular to said light focusing direction; and

    an anisotropic light diffusing part that is formed over the light exiting surface of the base material and that diffuses and emits light from the anisotropic light focusing part, said anisotropic light diffusing part comprising anisotropic light diffusing particles having an elongated shape, a long-axis direction of said elongated shape being in the non-light focusing direction and a short-axis direction thereof being in the light focusing direction, thereby relatively increasing an amount of light diffused in the light focusing direction and relatively decreasing an amount of light diffused in the non-light focusing direction.

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