A light unit, a backlight, a front light, and a display device, have a structure such that an uneven luminance generated in display is suppressed by radiating light in a sufficient amount even to an end portion of a display region, thereby uniformly radiating light in a sufficient amount to the entire display region, without a complicated structure. 4 gramscc; and a second element which includes at least one sheet of synthetic graphite having a density of at least 1. Additional systems and methods are also presented. The system can monitor and handle events from multiple corporations, each having its own business-related event rules, and each potentially having its own procurement approval system. The first, second, third and fourth support legs are vertically adjustable with respect to the corresponding first and second support bars. A streamlined flow of liquid is delivered to the nozzle to prevent after spray and the filter spaced from the nozzle to inhibit pulsation of the dispensed liquid stream.