Abstract: The present disclosure relates to an extrusion nozzle apparatus and a method for extruding a thermoelectric material using the extrusion nozzle apparatus. An extrusion nozzle apparatus according to one embodiment of the present disclosure comprises: an inlet introducing material; an outlet discharging the input material; and a discharge pipe formed in a multi-stage shape including a plurality of stages, wherein the input material is pressurized inside the discharge pipe and moves in a first direction from the inlet toward the outlet. The cross-sectional area of the plurality of stages in a direction perpendicular to the first direction progressively decreases from the inlet to the outlet. Accordingly, the thermoelectric performance of a thermoelectric material may be improved, and production cost and production time may be reduced.

Abstract: The present invention relates to a thermoelectric material and, specifically, to a thermoelectric material capable of improving the figure of merit and a preparation method therefor. In the present invention, the thermoelectric material may comprise: a matrix compound having a composition of chemical formula 1 or 2; and particles having a composition of chemical formula 3 dispersed in the matrix compound. (AB2)x(Bi2Se2.7Te0.3)1-x, (CB)x(Bi2Se2.7Te0.3)1-x, DyEz.

Abstract: The present invention relates to a thermoelectric material and, specifically, to a thermoelectric material manufacturing method for increasing potential density. The thermoelectric material manufacturing method of the present invention can comprise the steps of: preparing a bulk thermoelectric material by using thermoelectric material raw materials; preparing a powder of the bulk thermoelectric material; adding, to the powder, a metal additive selected from the thermoelectric material raw materials; forming an intermediate in which the metal additive is dispersed in the thermoelectric material; and sintering same at at least the melting point temperature of the metal additive.

Abstract: A plasma display apparatus comprises a scan electrode and a sustain electrode; a data electrode for intersecting the scan electrode and the sustain electrode; and a pulse controller for controlling to apply a pulse having an opposite phase to the scan electrode and the sustain electrode during a reset period and apply a negative sustain pulse to the scan electrode and the sustain electrode during a sustain period, wherein a distance between the scan electrode and the sustain electrode is longer than that between the sustain electrode and the data electrode. Therefore, a surface discharge mode can be used even when applying negative pulses to the sustain electrode in a reset period, and a size and cost of a plasma display apparatus can be reduced by applying a negative pulse of the same magnitude as a sustain voltage without a separate negative voltage source.

Abstract: Disclosed are a plasma display panel and a method of manufacturing the same. The plasma display panel includes a scan electrode and a sustain electrode formed on a glass substrate, each including a discharge ignition part for generating initial discharge and a discharge diffusion portion for diffusing discharge to the entirety using the initial discharge, and the plasma display panel includes a dielectric layer disposed on a upper side of the glass substrate to cover the scan electrode and sustain electrode.

Abstract: A method of driving a plasma display panel is disclosed. According to a negative sustain driving method for a plasma display panel using a negative sustain voltage, the negative sustain voltage and the ground level voltage are alternately applied to each of scan electrode Y and sustain electrode Z in a sustain period, and the negative sustain voltage is first applied to the sustain electrode Z.

Abstract: A plasma display panel comprises a front panel having a front glass, and a rear panel opposing the front panel. The rear panel includes a rear glass positioned to face the front glass, an address electrode formed on the rear glass, a lower dielectric layer covering the address electrode, a barrier rib, positioned on the lower dielectric layer, partitioning a discharge cell. At least one of a scan electrode and a sustain electrode is formed inside the barrier rib. A gap between the scan electrode and the sustain electrode is greater than a height of the barrier rib. The address electrode intersects with the scan electrode and the sustain electrode, and has a protrusion electrode in proximity to the scan electrode.

Abstract: A method of driving a plasma display panel is disclosed. The method including a scan electrode, a sustain electrode, and a barrier rib includes applying a scan pulse of a positive polarity to the scan electrode for an address period, and applying a data pulse of a negative polarity corresponding to the scan pulse of the positive polarity to the address electrode for the address period. A gap between the scan electrode and the sustain electrode positioned within a discharge cell partitioned by the barrier rib is more than a height of the barrier rib.

Abstract: A plasma display panel and a method of manufacturing the plasma display panel are disclosed. The plasma display panel includes a scan electrode, a sustain electrode, and a barrier rib formed on a glass, and an upper dielectric layer having a differential thickness formed on the glass. The upper dielectric layer covers the scan electrode and the sustain electrode. As the upper dielectric layer is far away from a discharge region portion between the scan electrode and sustain electrode, the width of the upper dielectric layer gradually increases. A distance between the scan electrode and the sustain electrode positioned within a discharge cell partitioned by the barrier rib is more than a height of the barrier rib.

Abstract: Disclosed are a plasma display apparatus and a driving method thereof. The plasma display apparatus includes a plasma display panel comprising a plurality of scan electrodes and sustain electrodes, a driver driving the plurality of scan electrodes and sustain electrodes, and a negative sustain pulse controller controlling the driver and adjusting each of an energy supply time and an energy recovery time of a negative sustain pulse supplied to one or more of the scan electrodes or sustain electrodes during a sustain period.

Abstract: A plasma display apparatus comprises a scan electrode and a sustain electrode; a data electrode for intersecting the scan electrode and the sustain electrode; and a pulse controller for controlling to apply a pulse having an opposite phase to the scan electrode and the sustain electrode during a reset period and apply a negative sustain pulse to the scan electrode and the sustain electrode during a sustain period, wherein a distance between the scan electrode and the sustain electrode is longer than that between the sustain electrode and the data electrode. Therefore, a surface discharge mode can be used even when applying negative pulses to the sustain electrode in a reset period, and a size and cost of a plasma display apparatus can be reduced by applying a negative pulse of the same magnitude as a sustain voltage without a separate negative voltage source.

Abstract: A plasma display apparatus and a method of driving the same are disclosed. In the method of driving the plasma display apparatus, a first pulse falling from a reference voltage level is supplied to the sustain electrode during a pre-reset period prior to a reset period. A voltage of the scan electrode is maintained at the reference voltage level during the supplying of the first pulse to the sustain electrode.

Abstract: A plasma display apparatus and a method of driving the same are disclosed. The plasma display apparatus includes a drive integrated circuit (IC) supplying a driving voltage to a scan electrode, a scan reference voltage supply unit, a setup supply unit, and a sustain pulse supply unit. The scan reference voltage supply unit supplies a first voltage to the drive IC during a reset period, and supplies a scan reference voltage to the drive IC during an address period. The setup supply unit supplies a pulse gradually rising from the first voltage to a second voltage to the drive IC during the reset period. The sustain pulse supply unit supplies a sustain pulse having a negative sustain voltage to the drive IC during a sustain period.

Abstract: A plasma display panel is disclosed. The plasma display panel includes a substrate, a plurality of electrodes, and a dielectric layer. The substrate includes a plurality of substrate depression portions spaced from each other with a predetermined distance therebetween. The plurality of electrodes are positioned between the substrate depression portions. The dielectric layer covers upper portions of the plurality of electrodes and an upper portion of the substrate.

Abstract: Provided is a plasma display panel in which a front substrate and a rear substrate are spaced a predetermined distance apart and sealed. The rear substrate comprises an address electrode, a scan electrode and a sustain electrode spaced apart from the address electrode, a dielectric layer provided to insulate the scan electrode, the sustain electrode, and the address electrode with each other, and a barrier rib provided on the dielectric layer. A thickness of the dielectric layer in a region between the scan electrode and the sustain electrode in a discharge cell is different from a thickness of the dielectric layer in remaining region of the discharge cell.

Abstract: A plasma display apparatus and a method of driving the same are disclosed. The plasma display apparatus includes a drive integrated circuit for supplying a driving voltage to a scan electrode, a scan reference voltage supply unit, a setup supply unit and a sustain pulse supply unit. The scan reference voltage supply unit supplies a first voltage to the drive integrated circuit during a reset period and supplies a scan reference voltage to the drive integrated circuit during an address period. The setup supply unit supplies a pulse gradually rising from the first voltage to a second voltage to the drive integrated circuit during the reset period. The sustain pulse supply unit supplies a sustain pulse of a negative polarity with a negative sustain voltage to the drive integrated circuit during a sustain period.

Abstract: A method of manufacturing a plasma display panel is disclosed. The method includes forming a first dielectric layer on the electrode and the substrate, coating a dielectric material on at least a portion of the first dielectric layer, and firing the dielectric material to form a second dielectric layer.

Abstract: A plasma display apparatus and a method of driving the same are disclosed. In the method of driving the plasma display apparatus, a first pulse falling from a reference voltage level is supplied to a sustain electrode prior to a reset period. A voltage of a scan electrode is maintained at the reference voltage level during the supplying of the first pulse to the sustain electrode. A reset pulse is supplied to at least one of the scan electrode and the sustain electrode during the reset period.

Abstract: A plasma display apparatus and a method of driving the same are disclosed. The plasma display apparatus includes an energy storing unit, a first energy recovery circuit unit and a second energy recovery circuit unit. The energy storing unit recovers a voltage stored in each of a scan electrode and a sustain electrode of a plasma display panel. The first energy recovery circuit unit recovers the voltage stored in the scan electrode, stores the recovered voltage in the energy storing unit, and supplies the voltage stored in the energy storing unit to the scan electrode. The second energy recovery circuit unit recovers the voltage stored in the sustain electrode, stores the recovered voltage in the energy storing unit, and for supplies the voltage stored in the energy storing unit to the sustain electrode.

Abstract: A plasma display apparatus and a method of driving the same are disclosed. The plasma display apparatus includes a plasma display panel including a scan electrode, a sustain electrode and an address electrode, a scan driver, a sustain driver and a data driver. The scan driver supplies a first pulse to the scan electrode during a sustain period. The sustain driver supplies a second pulse to the sustain electrode during the sustain period. The second pulse and the first pulse are alternately supplied. The data driver supplies a third pulse of a polarity opposite a polarity of the first pulse and the second pulse to the address electrode during the sustain period corresponding with the first pulse and the second pulse.