| 摘要 |
A projection display device is provided to prevent a screen assembly from being arbitrarily separated from a main body by using a locking unit to lock the screen assembly to the main body. A screen assembly(200) is combined to a front surface of a main body(100) and includes a screen on which an image is formed. A transfer member(300) slidably moves the screen assembly toward a front side of the main body so that the screen assembly can be separated from the main body or returned to its original position so as to be combined with the main body, and includes a pair of guide units(310) provided at the sides of the main body which face each other and a pair of sliding units(320) combined with the screen assembly and having sliders(321) slidably combined with the pair of guide units. A locking unit(340) includes a locking unit(341) provided at the main body and a lock receiving unit(342) provided at the slider and locked to the locking unit, and locks the screen assembly such that the screen assembly cannot be separated from the main body.
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