31results about How to "Stable discharge characteristics" patented technology

A plasma display panel includes a first substrate and a second substrate facing each other to provide a discharge space between the first substrate and the second substrate, a scan electrode and a sustain electrode both provided on the first substrate, a dielectric layer for covering the scan electrode and the sustain electrode, and a protective layer provided on the dielectric layer. The protective layer includes MgO, at least one element of Si, Ge, C and Sn, and at least one element of fourth, fifth, sixth and seventh group elements of a periodic table. This plasma display panel performs stable discharge characteristics, such as a driving voltage, thereby displaying an image stably.

A plasma display panel includes a first substrate and a second substrate facing each other to provide a discharge space between the first substrate and the second substrate, a scan electrode and a sustain electrode both provided on the first substrate, a dielectric layer for covering the scan electrode and the sustain electrode, and a protective layer provided on the dielectric layer. The protective layer includes magnesium oxide, magnesium carbide, and silicon. This plasma display panel performs stable discharge characteristics, such as a driving voltage, thereby displaying an image stably.

A plurality of nozzles is formed in a nozzle plate. A first liquid repellent film which surrounds an ejecting port of each of the nozzles and which has a liquid repellent property higher than a liquid repellent property of an inner surface of the nozzle is formed on an ink discharge surface. A second liquid repellent film which has a liquid repellent property higher than the liquid repellent property of the first liquid repellent film is formed on an outer side of the first liquid repellent film. A boundary between the first liquid repellent film and the second liquid repellent film is on a circle which is concentric with a circle forming a circumference of the ejecting port of the nozzle. Discharge characteristics of liquid droplets which are discharged from the nozzle can be stabilized.

A plasma display apparatus and a method of driving the plasma display apparatus are provided. According to an embodiment, the plasma display apparatus is driven by dividing a sub-field into at least an address period and a sustain period. The apparatus includes a timing controlling unit to vary a length of the sustain period according to a data pattern associated with at least one address electrode.

Provided is a silicon target material in which particles are not easily generated during a sputtering process and to form a low-defect (high quality) silicon-containing film. A silicon target material having a specific resistance of 20 Ω·cm or more at room temperature is used for forming a silicon-containing film. The silicon target material may be polycrystalline or noncrystalline. However, when the silicon target material is single-crystalline, a more stable discharge state can be obtained. Also, a single-crystal silicon in which crystals are grown by an FZ method is a preferable material as a highly-pure silicon target material because its content of oxygen is low. Further, a target material having n-type conductivity and containing donor impurities is preferable to obtain stable discharge characteristics. Only a single or a plurality of silicon target materials according to the present invention may be used for sputtering film formation of the silicon-containing film.

The invention relates to manufacturing method and apparatus for plastic membranes. A membrane shaped fuse member is closely attached to the surface of the rotary cooling roller by an electrostatic adhesion process. Therefore, electrodes can be heated to and maintained at high temperature, attachment of low molecular weight substances to electrodes can be prevented, long-term discharge stability and discharge easiness can be obtained, spark discharge failure generated at the electrode terminals can be avoided. As a result, plastic membrane with excellent quality can be produced stably in industry. Melt resin can be extruded in membrane shape from the mold head (1), and the membrane shaped fuse member (2) is closely attached to the surface of the rotary cooling roller (3) by an electrostatic adhesion process. Electric current directly flows to the electrode (4) close to the rotary cooling roller (3) and arranged along the width direction of the membrane shaped fuse member (2) for the heating of the heater. The electrode (4) causes the resistors having relatively lower position than the inner side of the end portion of the fuse body (2) to be lowered than other members, wherein the resistors are provided on the width direction from the supporting portions (5) on both ends.

Each of the red, green and blue column electrodes has widened portions each having a row-direction width larger than that of the other portions. Each of the widened portions faces a head portion of each of the transparent electrodes of a pair of row electrodes constituting each row electrode pair. The widened portion of the green column electrode facing the green discharge cell provided with the green phosphor layer is located in a different position in the column direction from a position of each of the widened portions of the red and blue column electrodes respectively facing the red and blue discharge cells respectively provided with the red and blue phosphor layers.

A method of manufacturing a liquid discharge head having a liquid flow path, a discharge energy generating device in the liquid flow path, a discharge port communicating with the liquid flow path, and a movable member facing the discharge energy generating device. The movable member is formed by a photolithographic technique, and a right-angled part and an acute-angled part of an edge of the movable member are removed so as to make a surface of the edge of the movable member curved. The curved surface of the movable member serves to reduce concentration of the stress on the movable member that occurs due to displacement of the movable member resulting from pressure of a bubble generated to discharge ink. Removal of the right-angled and acute-angled parts may be performed by soaking the movable member in an etching solution after formation of the movable member.