Patent ID: 7929100

Claim:
A liquid crystal display device comprising: a liquid display panel; a first circuit board electrically connected to the liquid display panel, the first circuit board having first and second conductive layers formed therein and a first solder pad formed therein to be electrically connected to the first conductive layer; and a second circuit board having a second solder pad formed therein to be soldered to the first solder pad and a third conductive layer formed therein to be electrically connected to the second solder pad, wherein the first circuit board has a first surface and a second surface facing the first surface, the liquid display panel is disposed on the first surface, and the first solder pad is disposed on the second surface, wherein the second circuit board has a light source portion embedded therein that is electrically connected to the third conductive layer, and wherein the first solder pad has a via hole formed therein, and the first solder pad is electrically connected to the second solder pad through the via hole.