| 摘要 |
PURPOSE: A projection display device and a wall display system are provided to laminate a plurality of projection display devices to configure a large wall display system, thereby minimizing gaps between images. CONSTITUTION: If screens(40) of projection display devices(100) are shifted as much as E in a direction opposite to a direction in which an optical axis is eccentric, projected beams reaching a vertex are reached to tops and bottoms of front sides of the screens. The screens have the best thickness. |
