DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide a display device capable of suppressing visibility of a non-image region caused by a non-pixel region present between pixel regions of an image source.SOLUTION: A display device 1 includes an image source 11 that has an array of a plurality of pixel regions and emits image light, a lens 12 that enlarges the image light to exit to an observer side, and an optical sheet 20 disposed between the image source 11 and the lens 12 or on the observer side of the lens 12. The optical sheet 20 has two or more optical layers stacked, in which a plurality of first convex or concave unit shapes is formed on an interface between adjoining optical layers, and a plurality of second convex or concave unit shapes is formed on another interface between adjoining optical layers or on an interface between the optical layer and air. When the optical sheet is viewed in the thickness direction, extension directions of the first unit shapes and the second unit shapes are orthogonal to each other.SELECTED DRAWING: Figure 1 【課題】映像源の画素領域間に存在する非画素領域が起因となる非映像領域が視認されてしまうことを抑制することができる表示装置を提供する。【解決手段】表示装置１は、複数の画素領域が配列され映像光を出射する映像源１１と、映像光を拡大して観察者側へ出射するレンズ１２と、映像源１１とレンズ１２との間、又は、レンズ１２の観察者側に配置される光学シート２０とを備え、光学シート２０は、２層以上の光学層が積層され、隣接する光学層の間の界面に凸状又は凹状の第１単位形状が複数形成され、隣接する光学層の間の他の界面又は光学層と空気との界面に凸状又は凹状の第２単位形状が複数形成されており、前記光学シートの厚み方向から見て、前記第１単位形状と前記第２単位形状は、その延在方向が直交する。【選択図】図１