An image display system includes: a frame buffer including plurality of lines; a memory controller conducting writing and reading operations with the frame buffer; an image data provider supplying image data to the memory controller and generating a writing address; a display controller generating a reading address and receiving image data that is read from the frame buffer by the memory controller; a tearing-protection bus arbiter storing a burst length, receiving the writing and reading addresses, and selectively outputting the writing and reading addresses; and a display device displaying the image data by the display controller. The reading address contains a start address for the reading operation and the writing address contains a start address for the writing operation. If the writing and reading addresses are the same or if a difference between the start addresses for the writing and reading operations is less than the burst length, the tearing-protection bus arbiter outputs the reading address to the memory controller and holds the writing address.