Display device and method of controlling the same

An electronic device comprising:

• a touch screen;
• a memory;
• and
• one or more processors configured to execute instructions stored in the memory to:
• control the touch screen to display a first execution screen,
• control the touch screen to display an object including a plurality of icons corresponding to a plurality of applications while the first execution screen is displayed,
• receive a touch input for an icon among the plurality of icons,
• when the touch input is moved, control the touch screen to display a screen on a position corresponding to a position of the touch input, the screen comprising at least one of a brightness related to a brightness of a second execution screen corresponding to the icon or a color related to a color of the second execution screen,
• when the touch input is positioned on a preset portion of the touch screen, control the touch screen to display the screen without overlapping with the first execution screen, and
• when the touch input is released, control the touch screen to display the second execution screen instead of the screen and the first execution screen without overlapping each other.