Driving methods and display systems are described for operating a display panel in flash mode. In an embodiment, the driving method includes time multiplexing between at least two panel operation voltage (VOP) levels including a first VOP level and a second VOP level across all Vdd input lines to a display area, and emitting a first wavelength range from a first subpixel group during application of the first VOP level across all of the Vdd input lines and emitting a second wavelength range from a second subpixel group during application of the second VOP level across all of the Vdd input lines.