A liquid crystal display apparatus, comprising: a liquid crystal modulation element (2R, 2B, 2G) including an electrode layer having a first electrode, a pixel electrode layer having second electrodes, a liquid crystal layer disposed between the first electrode and the second electrodes, a first alignment film disposed between the first electrode and the liquid crystal layer, and a second alignment film disposed between the second electrode and the liquid crystal layer; and a controller that is configured to provide, in a modulation operation state of the liquid crystal modulation element which is a liquid crystal driving state for image display, a first electric potential to the first electrode and second electric potentials to the second electrodes such that signs of interelectrode electric potential differences (PV, NV) generated therebetween are cyclically inverted, and to further provide, in a non-modulating operation state which is a state other than the modulation operation state, a third electric potential to the first electrode and fourth electric potentials to the second electrodes; the controller being adapted to sequentially perform (a) a first control to set said third and fourth electric potentials so as to generate interelectrode electric potential differences having a fixed sign and being identical to each other in an in-plane direction of the liquid crystal layer which is a direction orthogonal to a thickness direction of the liquid crystal layer, such that charged particles with a predetermined sign of-charge that have accumulated in the modulation operation state at a predetermined interface between one of the first and second alignment films and the liquid crystal layer are dissociated therefrom, and (b) a second control to set said third and fourth electric potentials so as to generate interelectrode electric potential differences having a fixed sign in the in plane direction and resulting in an in-plane electric field component such that the charged particles are diffused in the liquid crystal layer in the in-plane direction, thereby suppressing deterioration of image quality due to the influence of the accumulation of the charged particles. a liquid crystal modulation element (2R, 2B, 2G) including an electrode layer having a first electrode, a pixel electrode layer having second electrodes, a liquid crystal layer disposed between the first electrode and the second electrodes, a first alignment film disposed between the first electrode and the liquid crystal layer, and a second alignment film disposed between the second electrode and the liquid crystal layer; and a controller that is configured to provide, in a modulation operation state of the liquid crystal modulation element which is a liquid crystal driving state for image display, a first electric potential to the first electrode and second electric potentials to the second electrodes such that signs of interelectrode electric potential differences (PV, NV) generated therebetween are cyclically inverted, and to further provide, in a non-modulating operation state which is a state other than the modulation operation state, a third electric potential to the first electrode and fourth electric potentials to the second electrodes; the controller being adapted to sequentially perform (a) a first control to set said third and fourth electric potentials so as to generate interelectrode electric potential differences having a fixed sign and being identical to each other in an in-plane direction of the liquid crystal layer which is a direction orthogonal to a thickness direction of the liquid crystal layer, such that charged particles with a predetermined sign of-charge that have accumulated in the modulation operation state at a predetermined interface between one of the first and second alignment films and the liquid crystal layer are dissociated therefrom, and (b) a second control to set said third and fourth electric potentials so as to generate interelectrode electric potential differences having a fixed sign in the in plane direction and resulting in an in-plane electric field component such that the charged particles are diffused in the liquid crystal layer in the in-plane direction, thereby suppressing deterioration of image quality due to the influence of the accumulation of the charged particles. (a) a first control to set said third and fourth electric potentials so as to generate interelectrode electric potential differences having a fixed sign and being identical to each other in an in-plane direction of the liquid crystal layer which is a direction orthogonal to a thickness direction of the liquid crystal layer, such that charged particles with a predetermined sign of-charge that have accumulated in the modulation operation state at a predetermined interface between one of the first and second alignment films and the liquid crystal layer are dissociated therefrom, and (b) a second control to set said third and fourth electric potentials so as to generate interelectrode electric potential differences having a fixed sign in the in plane direction and resulting in an in-plane electric field component such that the charged particles are diffused in the liquid crystal layer in the in-plane direction, thereby suppressing deterioration of image quality due to the influence of the accumulation of the charged particles.