Abstract: A backlight module and a liquid crystal display device having the same are provided. The backlight module includes a light guide plate, a light source, a shading sheet and at least one reflecting sheet. The light guide plate has a first face, a second face corresponding to the first face and a lateral face connected to the first face and the second face, and a light gathering structure is formed at least on the first face. The light source includes a light emitting device and two power source legs, and the light emitting device is detachably attached to the light guide plate. The shading sheet is attached to the first face. The at least one reflecting sheet is attached to the lateral face.

Abstract: An electric wrench which includes a main body, a control unit, a torque sensor, a vibrating module and a phonetic module is provided. The main body includes a handle extend to form a holding portion. The vibrating module which includes a shell body and a vibration motor is mounted to the holding portion. The shell body includes a first end adjacent to one of the handle, and a second end. The first end defines a motor receiving space, and the vibration motor is disposed in the motor receiving space and electrically connected to the control unit. Whereby, the wrench is light-weight and friendly and comfortable for holding, and the vibration can be sensed by hand, and may produce, for example, human sound. Furthermore, the vibration and the human sound may be produced at the same time.