The present invention relates to source and drain electrodes and the array substrate, and a method of manufacturing a reflective liquid crystal display device for forming the pixel electrode by using a mask. The present invention is formed and having provided in correspondence to the organic insulating layer having an embossed surface on the pixel area, so that the protective layer located only in the thin film transistor above, the source and drain electrodes of the thin film transistor of a metallic structure of a three-layer, and the reflection electrode and the pixel electrodes characterized in that the double layer is provided so as to extend from the drain electrode to the metal organic upper insulating layer provided in correspondence with the pixel area. Since doing this, the source and all of the drain electrode and the data line and the pixel electrode can be formed using a single mask, without having a separate contact holes or the like for connecting the drain electrode and the pixel electrode, reducing the manufacturing time by the process can be simplified, yet reduce the cost of the process. A reflective liquid crystal display device, the array substrate, the source and drain electrodes, pixel electrodes, reflector