Abstract: An optical sheet and a liquid crystal display including the same are disclosed. The optical sheet includes a reflective polarizing film, a first adhesive layer on one surface of the reflective polarizing film, and a first diffusion layer on the first adhesive layer. The first adhesive layer has first and second thicknesses. The first diffusion layer includes a first light transmitting material and a plurality of first diffusion particles. At least one of the first diffusion particles has a portion protruding above a surface of the first light transmitting material, and a height of the portion, h1, substantially satisfies the following equation: 0.1D1?h1?0.7D1, where D1 is a diameter of the at least one of the first diffusion particles. The first thickness, T1, and the second thickness, T2, substantially satisfy the following equation: 10 nm?|T1?T2|?2 ?m.

Abstract: An optical sheet, a backlight unit including the optical sheet and a liquid crystal display including the backlight unit are disclosed. The optical sheet includes a reflective polarizing film, and a first diffusing layer on the reflective polarizing film. The first diffusing layer includes a plurality of first diffusion particles. The first diffusion particles have a volume distribution as a function of diameter. For a diameter D of a first diffusion particle corresponding to a maximum value of the volume distribution, a summation of volumes of a portion of the first diffusion particles having diameters between D?2 ?m and D+2 ?m is about 40% to 80% of a total volume of the first diffusion particles.

Abstract: An optical sheet, a backlight unit including the optical sheet, and a liquid crystal display including the backlight unit may be provided. The optical sheet may include a reflective polarizing film, a base film on one surface of the reflective polarizing film, and a plurality of projections on the base film. The base film may include a first surface and a second surface opposite the first surface. A first thickness T1 is a distance between the first surface and the second surface and a second thickness T2 is a distance between the first surface and the second surface. The first and second thickness T1 and T2 satisfy the following equation: 0.1 ?m?|T1?T2|?10 ?m.

Abstract: An optical sheet, a backlight unit including the optical sheet and a liquid crystal display including the backlight unit are disclosed. The optical sheet includes a reflective polarizing film, and a first diffusing layer on the reflective polarizing film. The first diffusing layer includes a plurality of first diffusion particles. The first diffusion particles have a volume distribution as a function of diameter. For a diameter D of a first diffusion particle corresponding to a maximum value of the volume distribution, a summation of volumes of a portion of the first diffusion particles having diameters between D?2 ?m and D+2 ?m is about 40% to 80% of a total volume of the first diffusion particles.

Abstract: An optical sheet, a backlight unit including the optical sheet, and a liquid crystal display including the backlight unit may be provided. The optical sheet may include a reflective polarizing film, a base film on one surface of the reflective polarizing film, and a plurality of projections on the base film. The base film may include a first surface and a second surface opposite the first surface. A first thickness T1 is a distance between the first surface and the second surface and a second thickness T2 is a distance between the first surface and the second surface. The first and second thickness T1 and T2 satisfy the following equation: 0.1 ?m?|T1-T2??10 ?m.

Abstract: An optical sheet, a backlight unit including the optical sheet, and a liquid crystal display including the backlight unit may be provided. The optical sheet may include a reflective polarizing film, a base film on one surface of the reflective polarizing film, and a projection portion on the base film. The projection portion may include a plurality of diffusion particles, a plurality of peaks, a plurality of valleys formed from the plurality of peaks, and a base portion between the base film and the peaks and the valleys. A height of the base portion is approximately 5% to 50% of a height of one of the peaks.

Abstract: An optical sheet, a backlight unit including the optical sheet, and a liquid crystal display including the backlight unit may be provided. The optical sheet may include a reflective polarizing film, a first adhesive layer on one surface of the reflective polarizing film, and a first diffusion layer on the first adhesive layer. The first diffusion layer may include a first light transmitting material and a plurality of first diffusion particles provided therein. A difference between a refractive index of the first adhesive layer and a refractive index of the first light transmitting material is less than or equal to approximately 0.2.

Abstract: An optical sheet and a liquid crystal display including the same are disclosed. The optical sheet includes a reflective polarizing film, a first adhesive layer on one surface of the reflective polarizing film, and a first diffusion layer on the first adhesive layer. The first adhesive layer has first and second thicknesses. The first diffusion layer includes a first light transmitting material and a plurality of first diffusion particles. At least one of the first diffusion particles has a portion protruding above a surface of the first light transmitting material, and a height of the portion, h1, substantially satisfies the following equation: 0.1D1?h1?0.7D1, where D1 is a diameter of the at least one of the first diffusion particles. The first thickness, T1, and the second thickness, T2, substantially satisfy the following equation: 10 nm?|T1?T2|?2 ?m.