Illuminating apparatus providing polarized color light and display apparatus including the same
First Claim
Patent Images
1. An illuminating apparatus providing polarized color light, the apparatus comprising:
- a light source;
a polarization light guide plate unit which converts a polarization direction of light emitted from the light source into linearly polarized light and collimates the linearly polarized light; and
a cholesteric liquid crystal color filter, disposed on an upper portion of the polarization light guide plate unit, which selectively reflects light incident thereon from the polarization light guide plate unit according to a polarized status and a wavelength of the light from the polarization light guide plate unit.
2 Assignments
0 Petitions
Accused Products
Abstract
An illuminating apparatus providing polarized color light and a display apparatus including the illuminating apparatus are provided. The illuminating apparatus includes a light source; a polarization light guide plate (LGP) unit which converts a polarization direction of light emitted from the light source into linearly polarized light, and collimates the linearly polarized light; and a cholesteric liquid crystal color filter which disposed on an upper portion of the polarization LGP unit, and selectively reflects light according to a polarized status and a wavelength of the light.
32 Citations
31 Claims
-
1. An illuminating apparatus providing polarized color light, the apparatus comprising:
-
a light source; a polarization light guide plate unit which converts a polarization direction of light emitted from the light source into linearly polarized light and collimates the linearly polarized light; and a cholesteric liquid crystal color filter, disposed on an upper portion of the polarization light guide plate unit, which selectively reflects light incident thereon from the polarization light guide plate unit according to a polarized status and a wavelength of the light from the polarization light guide plate unit. - View Dependent Claims (2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
-
5. The apparatus of claim 5, wherein the polarization separating layer comprises a stack of a plurality of thin films having different refractive indices.
-
29. A display apparatus comprising:
-
an illuminating apparatus; and a display panel which displays images using light emitted from the illuminating apparatus; wherein the illuminating apparatus comprises a light source; a polarization light guide plate unit which converts a polarization direction of light emitted from the light source into linearly polarized light and collimates the linearly polarized light; and a cholesteric liquid crystal color filter, disposed on an upper portion of the polarization light guide plate unit, which selectively reflects light incident thereon from the polarization light guide plate unit according to a polarized status and a wavelength of the light from the polarization light guide plate unit.
-
-
30. A display apparatus comprising:
-
an illuminating apparatus; and a display panel which displays images using light emitted from the illuminating apparatus, wherein the illuminating apparatus comprises; a light guide plate which guides the light emitted from the light source; and a fine structure layer which is disposed on the light guide plate, the fine structure layer comprising a first layer on which an exit unit having a concave portion and a convex portion is repeatedly disposed, and a second layer which is disposed on the first layer and comprises an anisotropic material having a refractive index that is different according to a polarization direction of the incident light.
-
-
31. A display apparatus comprising:
-
an illuminating apparatus; and a display panel which displays images using light emitted from the illuminating apparatus, wherein the illuminating apparatus comprises; a light guide plate which guides the light emitted from the light source; a collimator which is disposed on a side portion of the LGP that is adjacent to the light source, and decreases an incident angle of incident onto the LGP; an anisotropic layer which is disposed on a lower portion of the LGP, the anisotropic layer comprising an anisotropic material having a refractive index which varies according to a polarization direction of light; and a first light exiting layer which is disposed on a lower portion of the anisotropic layer, the first light exciting layer comprising a plurality of first light exiting patterns which reflect light transmitted through the anisotropic layer toward the upper portion of the light guide plate.
-
Specification