Head mounted display device

1. Head mounted display device

1 . 1 : Front

1 . 2 : Back

1 . 3 : Left

1 . 4 : Right

1 . 5 : Top

1 . 6 : Bottom

1 . 7 : Perspective

1 . 8 : Enlarged

The broken lines shown in the drawings illustrate portions of the head mounted display device that form no part of the claimed design; The dot-dash broken lines illustrate the boundary of the claimed design and form no part of thereof; The double dot-dash broken lines shown in the drawings indicate the outer limits of portions of figures shown enlarged and form no part of the claimed design.