| 摘要 |
An optical assembly (10) comprises: a light emitting module (13) that includes a plurality of light emitting devices (11); a light guide plate (15); and a side cover (20). The light guide plate (15) has a protrusion (15c) on a top surface of a first part (15b) of the light guide plate (15). The side cover (20) has a hole (21a,21b,21c) receiving the protrusion to firmly couple the light guide plate (15) with the cover (20). |
