| 摘要 |
Provided is a scanning-type image display device that can display images in an emphasized manner, with clear differentiation between an image valid region and an image invalid region, and can reduce power consumption. In a retinal scanning display, when in the process for laser scanning in the main scanning direction by a high-speed scanning unit, when the optical scanning position reaches a position (point PA1) that is a predetermined distance from a position (point PB1) at which switch is made between an invalid scanning region (Za2) where image display in accordance with an image signal is not performed to a valid scanning region (Za1) where image display is performed, a voltage control unit commences supply of bias current from a current supply unit, and when the optical scanning position reaches a position (point PD1) that is a predetermined distance from a position (point PC1) at which switch is made from a valid scanning region (Za1) to an invalid scanning region (Za2), the voltage control unit stops supply of bias current from the current supply unit.
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