IMAGE DISPLAY DEVICE AND DRIVE METHOD THEREFOR

摘要

The image display device includes a front CF-less liquid crystal panel, a first light guide plate, a PDLC panel, and a rear CF-less liquid crystal panel that are arranged sequentially, and a light-guide plate light source unit. At an image displaying time, the PDLC panel becomes in a spreading state. At this time, light source light emitted by the light-guide plate light source unit is guided to the first light guide plate, and is applied to the PDLC panel. The light source light spread by the PDLC panel is applied to the front CF-less liquid crystal panel and the rear CF-less liquid crystal panel. At an image non-displaying time, the PDLC panel becomes in a transmittance state, and transmits background light.

主权项

1. An image display device that separates one frame period of a given input signal into a plurality of sub-frame periods, and displays an image corresponding to any of a plurality of colors in each sub-frame period, the image display device comprising:
two first display panels each comprising a plurality of first display elements arranged in a matrix shape; and a light irradiating unit that applies light of the plurality of colors to the two first display panels, wherein the light irradiating unit comprises: a light source unit; and a second display panel capable of switching between a spreading state of spreading incident light and a transmittance state of allowing incident light to be transmitted, the second display panel becomes in the spreading state at a time when the image is to be displayed, to spread light emitted by the light source unit, and the two first display panels are arranged at both main surface sides of the second display panel, respectively, and display the image by controlling a transmission factor of light spread by the second display panel.