Abstract: A display module includes components of a display panel having an outward first FPC for connecting to a system, wherein the first FPC has a foldable part on which a welding area is defined, and a backlight unit opposite to the display panel for providing illumination for the display panel. The backlight unit has an outward second FPC which is welded with the welding area of the foldable part. Both the foldable part and second FPC are folded and turned around to keep the welding area attach to the backside of the backlight unit.

Abstract: A pipe enlarging tool includes a ratchet mechanism that includes a base securely connected to the threaded rod that has a cone member to enlarge pipes clamped by a chuck assembly in the base of the tool. A ratchet is pivotably connected to the cap and selectively engaged with the toothed inner periphery of the handle which is rotatably mounted to the cap. A knob includes a positioning assembly which biases the ratchet to push one of two toothed ends of the ratchet to engage with the toothed inner periphery of the handle. The handle can be reciprocally operated by the ratchet mechanism to move the threaded rod to enlarge the pipe or to remove the cone member from the pipe.

Abstract: A tube expander including: a main body, two opposite clamping blocks being disposed under a bottom of the main body, the two clamping blocks defining therebetween an insertion space in which a copper tube can be clamped; and a bolt screwed through the main body. One end of the bolt, which extends out of the main body, has a rotary switch. A top face of the rotary switch is formed with a polygonal socket in which a connecting member is accommodated. The connecting member is easily connectable with a mechanical power source for conveniently and quickly ascend/descending the bolt within the insertion space of the main body.