Have bitmap move across form without blinking

I have

            Paint += new PaintEventHandler(this.Display);

and

        public void Display(object sender, PaintEventArgs e)
        {
            Point characterposition = new Point(x, y);
            e.Graphics.DrawImage(character, characterposition);
        }

I want the character (who will be stored in the character variable) as x and y change. I have been using

            this.Invalidate();