Abstract: Disclosed is a thermal layer, as well as a backlight unit and a display device including the same. A composition for the thermal layer comprises a thermally conductive material, about 10 to 40 parts by weight of a binder based on 100 parts by weight of the thermally conductive material, about 5 to 30 parts by weight of a filler based on 100 parts by weight of the thermally conductive material, and about 5 to 40 parts by weight of a curing agent based on 100 parts by weight of the binder. A backlight unit according to the present invention comprises a light source, a reflector reflecting a light emitted from the light source and the present thermal layer disposed on one surface of the reflector. The thermal layer is formed by applying a mixture of the thermally conductive material, the binder, the filler and the curing agent.

Abstract: A diffuser for a backlight unit of a display device including a base film, a first diffusion layer including a first resin and a plurality of first diffusion particles, and being formed on an upper surface of the base film, and a second diffusion layer including a second resin and a plurality of second diffusion particles, and being formed on a lower surface of the base film. Further, the plurality of first diffusion particles are contained within the first resin such that an upper surface of the first diffusion layer is substantially flat.

Abstract: The present invention is directed to a light guide whose one or both sides are structured, a method and an apparatus for manufacturing the same. The present invention is also directed to an illuminating system using the light guide whose one or both sides are structured. The illuminating system comprises a light source part including a light source generating a light and an optical guide optically connected with the light source part for emitting a light inputted from the light source part to outside. The optical guide comprises a hollow outer pipe and a hollow inserted body inserted into the outer pipe, wherein its one side is extended in a substantially same direction as a longitudinal direction to the optical guide, and it is structured with a plurality of linear structures arranged side by side.

Abstract: A backlight unit and a display device having heat dissipating layer, and a method for manufacturing the heat dissipating layer are provided. A backlight unit includes a light source for emitting a light; a reflector below the light source for reflecting the light emitted from the light source and absorbing heat generated by the light source; and a heat dissipating layer including thermal conductive particles, the heat dissipating layer being disposed on a first surface of the reflector for dissipating the heat transferred to the reflector.

Abstract: A backlight unit having a polarization film for performing the function of a reflective polarization film, wherein the backlight unit includes a light source, an optical film and a polarization film. The light source emits a light having a certain wavelength, the optical film is located proximate to the light source to transmit the light outputted from the light guiding plate in a certain direction, and the polarization film is located proximate to the optical film. Here, the polarization film has a UV curing resin and lines disposed on the UV curing resin, and polarizes the light transmitted from the optical film. The backlight unit manufactures the polarization film by using an UV curing resin and a metal substance, and thus the manufacture period of the polarization film may be reduced enabling the polarization film to be manufactured in great quantities.

Abstract: The present invention relates to a prism sheet employed in a backlight unit. The prism sheet according to one embodiment of the present invention comprises a coating layer having a resin transmitting the incident light from the outside; and a plurality of beads contained in the resin and scattering the incident light; a base film disposed on the coating layer and transmitting the light; and a plurality of prisms disposed on the base film, and refracting and condensing the light transmitted from the base film. The prism sheet of the present invention may not be deformed even if the temperature of the backlight unit is increased.

Abstract: The present invention is directed to a light guide whose one or both sides are structured, a method and an apparatus for manufacturing the same. The present invention is also directed to an illuminating system using the light guide whose one or both sides are structured. The illuminating system comprises a light source part including a light source generating a light and an optical guide optically connected with the light source part for emitting a light inputted from the light source part to outside. The optical guide comprises a hollow outer pipe and a hollow inserted body inserted into the outer pipe, wherein its one side is extended in a substantially same direction as a longitudinal direction to the optical guide, and it is structured with a plurality of linear structures arranged side by side.

Abstract: A prism sheet of an LCD includes a body part made of a transparent resin material and a plurality of polypyramid-shaped optical unit structures formed in a intaglio type on the body part. The plurality of optical unit structures have intaglio-type polypyramid shapes in an inside of their polygonal structure. A center of the intaglio portion corresponds to a vertex of the polypyramid, thereby forming a point.

Abstract: Disclosed is a thermal layer, as well as a backlight unit and a display device including the same. A composition for the thermal layer comprises a thermally conductive material, about 10 to 40 parts by weight of a binder based on 100 parts by weight of the thermally conductive material, about 5 to 30 parts by weight of a filler based on 100 parts by weight of the thermally conductive material, and about 5 to 40 parts by weight of a curing agent based on 100 parts by weight of the binder. A backlight unit according to the present invention comprises a light source, a reflector reflecting a light emitted from the light source and the present thermal layer disposed on one surface of the reflector.

Abstract: A prism sheet of a liquid crystal display (LCD) includes a body part made of a transparent resin material; and a plurality of intaglio-type optical unit structures arranged on the body part, each of the optical unit structures having an intaglio-type or a relief type polyhedron inside of a rectangular structure thereof, a center of the intaglio portion forming a line, not a dot.