Provided are a wire structure, a method for fabricating a wire, a thin film transistor substrate, and a method for fabricating a TFT substrate. The boom is pivotally attached to the support frame to allow side-to-side movement and includes a centrally positioned elbow joint to allow vertical adjustment of the distal end of the boom. Moreover, the device includes an internal circular X-polarizer located external to the back light to circularly polarize internal light.