Back frame and backlight system

摘要

The present invention provides a back frame, which includes at least first and second primary assembling pieces. The at least two primary assembling pieces are joined to form a main frame structure of the back frame. The back frame further includes secondary assembling pieces that are arranged inside the main frame structure. The secondary assembling pieces are joined to the main frame structure. The primary assembling pieces and/or the secondary assembling pieces form bumps, and the bumps support a light homogenization mechanism. The present invention also provides a backlight system. The present invention uses bumps formed on the primary assembling pieces and/or the secondary assembling pieces to have the back frame firmly support the light homogenization mechanism and making the structure of backlight system more stable.