Abstract: Discussed are a backlight unit and an LCD device using the same. The backlight unit according to an embodiment includes a light source; a light guide plate facing the light source; a plurality of protrusion patterns provided on the bottom of the light guide plate; an optical sheet disposed on the light guide plate; and a reflector disposed under the light guide plate, wherein each of the plurality of protrusion patterns has a cross-sectional structure comprising a first side that is a portion of the bottom of the light guide plate, a second side that extends from one end of the first side, and a third side that extends from the other end of the first side.

Abstract: A liquid crystal display device includes: a first substrate having a display area and a non-display area surrounding the display area, the first substrate including first, second, third and fourth sides; a first common line formed in the non-display area corresponding to the second, third and fourth sides of the first substrate; a second substrate facing and spaced apart from the first substrate; a common electrode formed on an entire surface of the second substrate; and a liquid crystal layer between the first and second substrates.

Abstract: Discussed are a backlight unit and an LCD device using the same. The backlight unit according to an embodiment includes a light source; a light guide plate facing the light source; a plurality of protrusion patterns provided on the bottom of the light guide plate; an optical sheet disposed on the light guide plate; and a reflector disposed under the light guide plate, wherein each of the plurality of protrusion patterns has a cross-sectional structure comprising a first side that is a portion of the bottom of the light guide plate, a second side that extends from one end of the first side, and a third side that extends from the other end of the first side.

Abstract: A liquid crystal display device includes: a first substrate having a display area and a non-display area surrounding the display area, the first substrate including first, second, third and fourth sides; a first common line formed in the non-display area corresponding to the second, third and fourth sides of the first substrate; a second substrate facing and spaced apart from the first substrate; a common electrode formed on an entire surface of the second substrate; and a liquid crystal layer between the first and second substrates.