Patent ID: 8243232
Filing Date: 2012-08-14
Classification: G02F

Abstract:
1. A backlight for a liquid crystal display device, where a number of point light source elements are aligned in a plane, comprising: a number of backlight units, each of which is formed of a support substrate for supporting point light source elements and point light source elements arranged on the support substrate, a region in which the point light source elements are aligned being divided into a number of smaller regions, each of which having a backlight unit; and a reflective sheet provided on the support substrates of the backlight units, having openings created at points where the point light source elements are located, characterized in that the reflective sheet is formed of a number of sheets and covers the entire region and the reflective sheet is provided over a number of the support substrates of the backlight units and that a center-to-center distance between each of adjacent point light source elements of adjacent sheets located at adjacent edges of the adjacent sheets is shorter than any center-to-center distance between each of adjacent point light source elements located on the same sheet.