A frame structure for backlight modules is provided herein. A backlight
module according to the present invention mainly contains a frame
structure, a reflection plate, a light guide plate, optical films, and a
light source unit. The frame structure contains a plate member and a
frame member. There are a number of hook elements and clasp elements
configured at corresponding locations along the edges of the plate member
and the frame member respectively. Also along the edges of the plate
member and frame member, there are a number of grooves and stopping
blades configured at corresponding locations on the plate member and
frame member respectively. When the frame member is joined to the plate
member, their corresponding clasp elements and hook elements would
interact to fixedly join together, and the stopping blades would stick
into the corresponding grooves to prevent the frame member from
deformation and escape under heavy pressure or strong impact.