| 摘要 |
In a three-dimensional image display device for displaying color three-dimensional images, a fly eye lens, a display panel, and a light source are provided in this order from the observer side. A display panel has four pixels arrayed in a (2x2) matrix correlated with one lens element of the fly eye lens. In the event that j is a natural number, a pixel magnifying projection width e in a second direction is set in a range of the following expression according to mean interpupillary distance Y of the observers. <maths id="MATH-US-00001" num="00001"> <MATH OVERFLOW="SCROLL"> <MROW> <MFRAC> <MI>e</MI> <MN>3</MN> </MFRAC> <MO><></MO> <MROW> <MFRAC> <MI>Y</MI> <MROW> <MN>2</MN> <MO>x</MO> <MI>j</MI> </MROW> </MFRAC> <MO>.</MO> </MROW> </MROW> </MATH> </MATHS>
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