Patent ID: 7158205

Claim:
A liquid crystal panel substrate comprising: a substrate; a plurality of pixel units, each pixel unit including a reflective electrode and a switching element electrically connected to the reflective electrode, the pixel units being arranged in a matrix pattern on the substrate, the plurality of pixel units forming a pixel region; a light-shielding layer formed between the reflective electrode and the switching element; a switching element electrode electrically connected to the switching element; a first metal layer located at the edge of the substrate, the first metal layer being formed from the same layer as the switching element electrode; a second metal layer located at the edge of the substrate, the second metal layer being formed from the same layer as the light-shielding layer; and a third metal layer that is located above the second metal layer at the edge of the substrate and that is formed from the same layer as the reflective electrode, wherein the first metal layer, the second metal layer, and the third metal layer are connected to each other through contact holes at the edge of the substrate.