Patent ID: 9620044
Date: 2017-04-11
CPC Classifications: G02B,G09G

Claim:
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.