IMAGE DISPLAY APPARATUS AND ADJUSTMENT METHOD THEREOF

原文（中国語）

An image display apparatus includes image display parts, optical elements, and a movement driving unit for changing relative positions of the image display parts and the optical elements. The movement driving unit includes an estimated value acquisition unit for acquiring an estimated value with respect to a change of relative positions of the image display parts and the optical elements, an allowable value acquisition unit for acquiring an allowable value with respect to a change of a position, and a control mode selection unit for selecting any one of a plurality of control modes for controlling the movement driving unit based on a result of comparison between the estimated value and the allowable value.