Various embodiments and methods relating to a pixel are disclosed. The dilution valve is capable of mixing two input streams of solutions, at any dilution ratio from 0% to 100%, into a single output stream solution mixture. In this way, in the event of dynamic changes of state, a speed regulator defines a power-determining signal according to a first regulation difference and the second regulation difference. By adjusting a valve controlling the force and volume of flow of the second stream andor by adjusting the trajectory adjuster, the intersection of the first and second streams may be modified and, therefore, the laminarity of the first stream may be modified.