To obtain a bright display, to obscure the wirings between pixels and to improve visibility by allowing the transmission of light as much as possible.

The intersected parts of gate wirings and source wirings 2 are provided with switching elements near these parts. The upper parts of these switching elements are provide with two kinds of interlayer insulating films 5 and 6 varying in refractive index. The upper parts of these interlayer insulating films 5 and 6 are provided with pixel electrodes 3 connected to the switching elements. The interlayer insulating films 5 and 6 form optical refracting means. As a result, the light is refracted at the boundary surfaces between the interlayer insulating films 5 and 6 and the light is introduced to the pixel parts on the light shielding materials, such as wirings, as well.