US Patent 8467008 Clamping device, backlight module, and display apparatus

A clamping device including a back frame and a top cover is provided. The back frame includes a first body and a first sidewall, wherein the first sidewall is connected to the first body in a substantially vertical manner. The top cover includes a second body and a second sidewall, wherein the second sidewall is connected to the second body in a substantially vertical manner. When the top cover is assembled to the back frame, the second sidewall leans closely against the first sidewall, and the first body is opposite to the second body. The second body includes a main part and a concave part connecting together, wherein the distance from the concave part to the first body is shorter than the distance from the main part to the first body. Furthermore, a backlight module and a display apparatus that utilize the clamping device are also provided.