This invention provides a method for exploiting precoder optimization gains and multi-user diversity gains with interference alignment in general MIMO wireless networks including multiple users. A complementary predicate related to a qualifying predicate is determined to be available. One end of the passage is closed off by a plug with an opposed end of the passage having an end cap. The memory controller performs a Z comparison test wherein Z coordinates of the batch are compared with existing Z coordinates read from a frame buffer to determine whether each new color of the batch associated with the compared Z coordinate should be written into the frame buffer. An assembling method of the display panel mentioned above and a liquid crystal display using the display panel are also provided.