| 摘要 |
Disclosed is an LED screen with the light-transmittance performance and the non-light-transmittance performance of a screen body switched rapidly, comprising a box body (1), light shielding boards (2) and knob assemblies. The box body (1) is provided with several first grid holes (12) which are regularly arranged and a pair of guide rails (11), the light shielding boards (2) are mounted on the guide rails (11), the knob assemblies are mounted on the light shielding boards (2) and can rotate to drive the light shielding boards (2) to slide along the guide rails (11), and the light shielding boards (2) are provided with second grid holes (21) which are arranged corresponding to the first grid holes (12). With the arrangement of the knob assemblies and the guide rails (11), a light-transmittance state and a non-light-transmittance state of the LED screen can be rapidly switched, the structure is simple, and the operation is convenient. |
