Patent ID: 6755545
Filing Date: 2004-06-29
Classification: G02B

Abstract:
A backlight assembly comprising:a lamp assembly for generating a first light to emit the light; and a first light guide plate for enhancing a brightness of the first light, the first light guide plate including a body for guiding the first light exiting from the lamp assembly, the body having a plurality of side faces, upper and bottom faces connected to the side faces, the bottom face having brightness enhancing recesses for enhancing the brightness of a second light incident on the body, the second light reflected to the side faces so that the second light has a different pathway from each other in the body, each of the brightness enhancing recesses having at least three side walls for reflecting the second light to the upper face, wherein each of the side walls having a trigonal shape, and each of areas of the side walls are different corresponding to the amount of the second light reflected from the side walls, and the brightness enhancing recesses having a polyhedron horn shape.