We have studied electro-optic characteristics as a function of pretilt angle ($ heta$$_{p}$) in the fringe-field switching (FFS) mode using the LC with positive dielectric anisotropy. When $ heta$$_{p}$ is increased from 0$^{circ}$ to 20$^{circ}$, a maximum transmittance and an operating voltage are obviously decreased. In the viewing angle characteristics, the cell with low pretilt angle has a wide region for the contrast ratio greater than 5 and has a best luminance uniformity. Therefore, in the FFS device, a low pretilt angle is favored for high transmittance and wide viewing angle.gle.