A method and apparatus for processing primitives in a computer graphics display system. Via light-compensating elements installed between any two neighboring light-emitting elements, the present invention solves the brightness defects occurring in the portions between any two neighboring light-emitting elements and further increases the brightness and uniformity of a planar backlight source. Based on the disparity, a viewpoint direction of the image pixel may be determined by the image rendering apparatus. The nonvolatile fuse adapts to operate with a voltage supply greater than about 1. The oxygen introduction includes delivering the oxygen into the oil-bearing formation without having the introduced oxygen contact the walls of the tubing string and without having the introduced oxygen contact the injected water within the tubing string while the injected water is in the tubing string.