Reflection efficiency of reflected light is improved and white display is efficiently performed in a liquid crystal display device which performs display by reflecting incident external light. A liquid crystal display device with higher visibility and higher image quality is provided. White display is performed utilizing reflected light which is efficiently scattered with the use of a pixel electrode layer whose surface has depressions and projections, whereby reflection efficiency of the reflected light can be improved and white display can be efficiently performed. Further, a liquid crystal display device with higher visibility and higher image quality can be provided.