A display device and a driving method for the same are provided in embodiments of the present application. the display device includes: a LCD panel without a color filter layer, the LCD panel comprising a plurality of first pixel units arranged into an array, each first pixel unit comprising at least three sub-pixels, each sub-pixel comprising a display unit, at least one sub-pixel of each of the plurality of first pixel units being provided with a palmprint identification unit for palmprint identification; and a light source disposed at a light-incident side of the LCD panel and configured for providing light of three-primary colors to three sub-pixels of the at least three sub-pixels respectively, the three sub-pixels comprising the at least one sub-pixel provided with the palmprint identification unit. The driving method is used for the display device having a palmprint identification function.