| 主权项 |
1. An image display device, comprising:
at least one screen; an image projector for projecting an image on the screen; and a control unit that periodically switches between a light-transmitting state and a light-scattering state of the screen, wherein: the screen comprises: a pair of oppositely disposed substrates having an electrode, at least one of which is a transparent substrate, and 7a liquid crystal light modulating layer provided between the pair of substrates having an electrode, the liquid crystal light modulating layer comprising a complex comprising a chiral nematic liquid crystal phase of positive dielectric constant anisotropy, and a solid phase of polymeric resin; the screen is in a light-transmitting state under no applied voltage, and is switchable to a light-scattering state in response to applied voltage; the screen and the image projector are synchronized such that the image projector projects an image on a part of the screen or on the whole screen when the screen is in a light-scattering state, and projects no image when the screen is in a light-transmitting state; and the control unit controls the periodic switching so that a switching frequency is 40 Hz to 100 Hz, and a light-scattering state duty ratio is 0.01 to 0.20. |
