Striped diffuser, method of manufacturing the same, and liquid crystal display device with adjustable viewing angle employing the striped diffuser

A liquid crystal display device comprising:

• a backlight unit;
• and
• a liquid crystal panel which forms an image using light emitted by the backlight unit, and comprising:
• a color filter comprising a plurality of pixels each of which comprises a plurality of subpixels that transmit light in different wavelength bands;
• a liquid crystal layer whose transmittance is adjusted under an electrical control;
• a first polarizing plate and a second polarizing plate which are spaced apart from each other and the liquid crystal layer is disposed therebetween;
• a diffuser disposed directly on the first polarizing plate or the second polarizing plate, the diffuser comprising diffusing areas and transparent areas which alternate with each other at intervals corresponding to the width of each of the subpixels;
• and
• a thin film transistor layer which controls a transmittance of the liquid crystal layer;
• wherein an area of the liquid crystal layer corresponding to each of the subpixels is divided into a first liquid crystal area facing one of the diffusing areas and a second liquid crystal area facing one of the transparent areas and transmittances of the first and second liquid crystal areas are adjusted separately, and
• wherein the thin film transistor layer includes a first transistor for controlling a transmittance of the first liquid crystal area and a second transistor for controlling a transmittance of the second liquid crystal area.