Active liquid crystal aligning agent is required only after the friction of the liquid crystal molecular orientation, in addition to the use of friction to the friction material and equipment have higher requirements. The main disadvantage is the creation of dust and static electricity, especially for higher quality of TFT-LCD will impact. So someone has to get oriented in the pursuit of the effect of non-rubbing method. There are two main methods, namely, LB membrane and a light curing method. The former is the use of LB films of molecular orientation of the liquid crystal molecules induced ordered, which is already making use of the photo-curable orderly arrangement of molecules fixed. Although both methods are not available to the extent practical, but also for the future development prospects are not sure.