Abstract: A liquid jet head includes an actuator substrate having a principal surface on which ejection channels and non-ejection channels are formed, common electrodes formed on side surfaces of the ejection channels, individual electrodes formed on side surfaces of the non-ejection channels, individual electrode pads for connection to the individual electrodes, and common electrode pads for connection to the common electrodes. A groove is formed on the principal surface of the actuator substrate for isolating the individual electrode pads and the common electrode pads from one another. An external substrate has individual electrode terminals and common electrode terminals for connection to the individual electrode pads and common electrode pads, respectively. A connection wiring that connects the common electrode terminals to each other is formed along the groove to prevent an electrical short circuit between the connection wiring and the individual electrodes.

Abstract: A liquid jet head includes an actuator substrate having ejection grooves and non-ejection grooves partitioned by walls each including a piezoelectric body. The non-ejection grooves have, at ends on one side thereof, respective inclined surfaces rising from bottom surfaces thereof to upper surface openings at upper portions thereof. Common electrodes are provided in a strip form along a longitudinal direction of the walls on both side surfaces of the walls facing the ejection grooves, and active electrodes are provided in a strip form along the longitudinal direction of the walls on both side surfaces of the walls facing the non-ejection grooves. The active electrodes extend from positions in the vicinity of the ends on one side of the non-ejection grooves to ends on the other side thereof.

Abstract: Individual electrode pads to be connected to individual electrodes are formed on a first principal face of an actuator substrate at a +X side end thereof. Common electrode pads to be connected to common electrodes are formed on a ?X side with respect to the individual electrode pads on the first principal face of the actuator substrate. A groove is formed along a Y direction between the individual electrode pads and the common electrode pads on the first principal face of the actuator substrate.

Abstract: A liquid jet head according to an embodiment of the present invention includes an actuator substrate having slender ejection grooves and slender non-ejection grooves partitioned by slender walls each including a piezoelectric body. The non-ejection grooves have, at ends on one side thereof, respective inclined surfaces rising from bottom surfaces thereof to upper surface openings at upper portions thereof, common electrodes are provided in a strip form along a longitudinal direction of walls on both side surfaces of the walls facing the ejection grooves, active electrodes are provided in a strip form along the longitudinal direction of the walls on both side surfaces of the walls facing the non-ejection grooves, and the active electrodes are provided from positions in the vicinity of the ends on one side of the non-ejection grooves to ends on the other side thereof.

Abstract: In an ink jet head nozzle plate manufacturing method, a laser beam is generated using a laser beam source. A direction of the laser beam is changed using a mirror that reflects the laser beam. The laser beam reflected by the mirror is condensed using micro-lenses arranged on a common plane. Nozzle openings are formed in a nozzle plate using the laser beam condensed by the micro-lenses.

Abstract: A method for efficiently and stably manufacturing a nozzle plate wherein nozzle openings are accurately formed. According to an ink jet head nozzle plate manufacturing method for emitting a laser beam through lenses onto the face of a nozzle plate to form a plurality of nozzle openings, these lenses are a plurality of micro lenses arranged on the same plane, and the pitch for arranging the micro lenses that are adjacent in the direction in which the nozzle openings are formed in the nozzle plate is defined as an integer multiple of the pitch for arranging adjacent nozzle openings.

Abstract: Disclosed is a head chip and a method of producing the same which help to achieve an improvement in production yield and a reduction in production cost and which allow high speed printing and high density printing.

Abstract: A head chip is manufactured by disposing partition walls made of piezoelectric ceramic between a pair of opposing substrates made of a dielectric material so that the partition walls are spaced apart at a preselected interval to form channels. Inorganic conductive films are formed on a surface of one of the substrates. At least one metal film is formed on a portion of each of the inorganic conductive films. An electrode is formed on a side surface of each of the channels. Each of the electrodes is electrically connected to a respective one of the metal films via a respective one of the inorganic conductive films.

Abstract: Disclosed is a head chip and a method of producing the same which help to achieve an improvement in production yield and a reduction in production cost and which allow high speed printing and high density printing.

Abstract: A head chip has a substrate having a first main surface and a second main surface opposite the first main surface. First partition walls are disposed on the first main surface of the substrate in spaced apart relation at a preselected interval to form first channels each for receiving ink. Second partition walls are disposed on the second main surface of the substrate in spaced apart relation at a preselected interval to form second channels each for receiving ink. Electrodes are connected to side walls of the first and second channels and are driven by a voltage signal to deform the side walls to vary the volume in the first and second channels to thereby eject ink from the first and second channels.

Abstract: A head chip and a head unit, in which manufacturing cost is reduced and also manufacturing steps are simplified, are provided.

Abstract: A manufacturing method of a head chip is provided by which manufacturing cost is reduced and manufacturing steps are simplified.

Abstract: A head chip and a head unit, in which recording density is improved and also manufacturing cost is reduced, are provided, in a head chip in which: partition walls 12 made of piezoelectric ceramic are arranged on a board 11 with predetermined intervals; chambers 13 are defined between the respective partition walls 12; a driver voltage is applied to electrodes 14 provided on the side surfaces of the partition walls 12 to change the capacity in the chambers 13; and the ink filled in the chambers 13 is jetted from nozzle openings, the chambers 13 are arranged in parallel between two upper and lower sheets of boards 11a and 11b, which are made of a dielectric material having a light transmitting property, in the width direction with predetermined intervals, and also a plurality of the boards are laminated in the vertical direction.

Abstract: A head chip and a head unit, in which manufacturing cost is reduced and also manufacturing steps are simplified, are provided.

Abstract: A method of manufacturing a color filter for a multicolor liquid crystal display unit comprises the steps of forming an organic high-polymer color filter layer over a surface of a substrate. A protective film is then formed on the color filter layer and on the surface of the substrate. Thereafter, a thin metal electroless plating film is formed on the protective film. The electroless plating film is then patterned to form a shading film.

Abstract: A thin film transistor array for a liquid crystal display device is produced by simultaneously forming gate electrodes and picture element electrodes; forming islands of a layered structure comprised of a gate insulating film, a thin semiconductor film and a light shielding film in a single masking step; and forming the gate, source and drain wiring metals in contact windows by the "lift-off" technique after using a resist film for opening the contact windows. Only three masking steps are required thereby enabling an increase in production yield and a lower production cost as compared to conventional techniques which typically require seven masking steps.