| 摘要 |
A rear projection display, including a base, a partition, a frame, and an optical engine, is provided. The partition is disposed in the base for defining a system space and a lens adjusting space, wherein the system space and the lens adjusting space are exposed by a front opening on the base. The optical engine is disposed in the system space, and a projection lens of the optical engine protrudes into the lens adjusting space. The frame is disposed on the base for fixing a screen. The focal length can be directly adjusted through the lens adjusting space, and the projection effect can be observed simultaneously from the screen.
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