A controller for a display panel may include a first supply circuit to output first and second driving voltages to a sub-pixel of a first color; and a second supply circuit to output third and fourth driving voltages to a sub-pixel of a second color. A piston disposed in the tube and configured for displacement there along. A pressing projection is provided on opposing interior surfaces of each of the upper and lower tabs of the C-type resin clip, and a press-down tab is provided on the upper and lower tabs of the C-type metal clip. The moveable member includes a pair of wedge-shaped extension tabs. A circuit configuration for particularly fast and simple programming of fuses, in particular electrically programmable fuses, is thereby specified. A thickness of the vibration plate is from 5 \u03bcm to 10 \u03bcm.