Abstract: A micromirror device for an image display apparatus in which it is possible to drive a mirror by rotation is provided. The micromirror device according to the present invention includes a substrate, a pair of first posts protrusively formed on an upper surface of the substrate and, electrodes formed on the substrate. A supporting plate is supported by the first posts and rotatably arranged using a portion supported by the first posts as a hinge point, a second post is protrusively formed on the supporting plate, and a mirror is supported by the second post for reflecting light incident on one surface thereof, wherein a slope of the mirror can be controlled by an electrostatic attraction between the electrode and the mirror.

Abstract: An electrostatic attraction type inkjetting apparatus including aboard having an ink chamber for receiving ink and a nozzle hole extending from the ink chamber to the extreme end of the board and thus open at the extreme end of the board; a membrane laminated on the board; a lower electrode received in the ink chamber; and an upper electrode disposed on the outer surface of the membrane. By the electrostatic attraction generated during an electric potential difference application between the upper and lower electrodes, the membrane is deformed inward to the ink chamber to press the ink of the ink chamber. Thus, the ink is jetted outward through the nozzle hole. Since the membrane and the driving section are integrally formed with each other, the manufacturing process becomes simpler, and electrostatic attraction generation, and ink discharge are performed efficiently.

Abstract: A micromirror device for an image display apparatus in which it is possible to drive a mirror by rotation is provided. The micromirror device according to the present invention includes a substrate, a pair of first posts protrusively formed on an upper surface of the substrate so as to be separated from each other by a predetermined distance, electrodes formed on the substrate, a supporting plate supported by the first posts and rotatably arranged using a portion supported by the first posts as a hinge point, a second post protrusively formed on the supporting plate, and a mirror supported by the second post for reflecting light incident on one surface thereof, wherein a slope of the mirror can be controlled by an electrostatic attraction between the electrode and the mirror.