Abstract: A random number generation method and random number generator using a ZnS scintillator. The random number generator includes: a radioisotope emission layer emitting an alpha particle or a beta particle that is emitted when an atomic nucleus decays; a polymer layer disposed under the radioisotope emission layer; an inorganic scintillator layer disposed between the radioisotope emission layer and the polymer layer and applied with an inorganic scintillator substance; and a wafer layer disposed under the polymer layer and including a photodiode detecting light produced from the inorganic scintillator layer.

Abstract: A multilayer capacitor includes: a body including a capacitance region in which at least one first internal electrode and at least one second internal electrode are alternately laminated in a first direction with at least one dielectric layer interposed therebetween; and first and second external electrodes spaced apart from each other and respectively disposed on first and second surfaces of the body, the first and second surfaces opposing each other. The body further includes a first via electrode, connecting the at least one first internal electrode and the first external electrode to each other in the first direction, and a second via electrode connecting the at least one second internal electrode and the second external electrode to each other in the first direction.

Abstract: A plasma display includes a plurality of scan electrodes. A scan voltage is sequentially supplied to the plurality of scan electrodes, and a non-scan voltage that is higher than the scan voltage is supplied to scan electrodes to which the scan voltage is supplied. The non-scan voltage is generated by dividing a voltage that is higher than the non-scan voltage and the scan voltage. Thus, a voltage source for supplying the non-scan voltage can be eliminated.

Abstract: Provided is a plasma display panel that protects both substrates against distortion when assembled, and reduces a halation effect. The plasma display panel includes: a first substrate and a second substrate facing each other; address electrodes which are formed on the first substrate to extend in a first direction; barrier ribs which are disposed between the first and second substrates, and define discharge cells; phosphor layers which are formed within the discharge cells; first electrodes and second electrodes which are formed on the second substrate to extend in a second direction crossing the first direction; and a dielectric layer which covers the first electrode and the second electrode, wherein the dielectric layer includes grooves formed in correspondence with the barrier ribs, and at least portions of the barrier ribs are inserted into the grooves.

Abstract: A sustain or scan electrode driver for a plasma display device including a power recovery circuit, a voltage storage circuit, and a switching circuit. Power recovery is achieved by a coupling a power source at a minus sustain voltage to the sustain or scan electrode driver circuit that includes a capacitor and an inductor for creating resonance with the panel capacitor and recovering the power used in sustain discharge. Power loss of switches used in the driver circuit may be reduced and power recovery efficiency may be increased by using an additional capacitor in the driver circuit that maintains terminals of the switch at a predetermined level.

Abstract: A driving method for a plasma display panel capable of stabilizing a sustain discharge. The driving method for a plasma display panel according to exemplary embodiments of the present invention includes applying a signal gradually rising to a first voltage to scan electrodes during a first period of a sustain period, and applying a second voltage to sustain electrodes during the first period.

Abstract: A power supply that is employable by a plasma display device for generating and supplying a plurality of voltages, the power supply including a first power source generating and supplying a first voltage, a transistor having a drain electrically coupled to the first power source, a first resistor having a first end coupled to the first power source and a second end electrically coupled to a gate of the transistor, a second resistor having a first end coupled to the second end of the first resistor and a second end electrically coupled to a second power source supplying a second voltage that is lower than the first voltage, and a capacitor having a first end coupled to a source of the transistor and a second end electrically coupled to the second power source. The coupling of the first end of the capacitor to the source of the transistor may form a third voltage supply node having the third voltage when the capacitor is charged.

Abstract: The plasma display includes a controller and a driver. The controller divides one frame into a plurality of subfields, and establishes address and sustain periods in the respective subfields according to a subfield load ratio indicating a ratio of light emitting cells in the respective subfields. The driver selects a light emitting cell among the plurality of discharge cells during the established address period and sustain-discharges the light emitting cell during the established sustain period.

Abstract: Provided is a method of driving a plasma display panel (PDP) that comprises X electrodes, Y electrodes, and address electrodes, wherein a frame, which is a display cycle, comprises a plurality of subfields for time-divisional gray scale display. Each of the subfields includes a reset period, an address period, and a sustain period. The reset period is one of a main reset period during which both a rising pulse and a falling pulse are applied to the Y electrodes and an auxiliary reset period during which one of the rising pulse and the falling pulse is applied to the Y electrodes, and the main reset period comprises a first pulse time during which a pulse rising to a level of a first voltage and then falling to a level of a second voltage is applied to the Y electrodes and a second pulse time during which a pulse rising to a level of a third voltage and then falling to a level of a fourth voltage is applied to the Y electrodes.

Abstract: A method and apparatus to drive a Plasma Display Panel (PDP) having X electrodes, Y electrodes, and address electrodes includes: dividing a unit frame, which is a display cycle, into a plurality of sub-fields for displaying time ratio gray-scale, each sub-field including a reset period, an address period, and a sustain period; alternately supplying a sustain pulse to the X electrode and the Y electrode based on a reference voltage in the sustain period; and reducing the width of the last sustain pulse of the sustain period in the minimum weighted sub-field, if a load factor of the minimum weighted sub-field to which the lowest gray-scale is allocated among the plurality of sub-fields is lower than the reference load factor.

Abstract: Driving a display may include dividing a unit frame into a plurality of sub-fields and dividing each of the sub-fields into a reset period, an addressing period, and a discharge-sustaining period. During the addressing period, a voltage difference between an addressing electric potential applied to selected address electrode-lines and a bias electric potential applied to scanning electrode-lines not scanned increases over the addressing period.

Abstract: In a plasma display device, an elapsed driving time of the plasma display device is accumulated and calculated, and a scan pulse having a first voltage is supplied to a scan electrode during a first period which is an address period of each subfield in response to the accumulated driving time being less than a reference time, and a scan pulse having a second voltage that is greater than the first voltage is supplied to a scan electrode during a second period which is an address period of each subfield in response to the accumulated driving time being greater than the reference time.

Abstract: A method for driving a plasma display panel including pixels formed by a plurality of first electrodes, a plurality of second electrodes, and a plurality of third electrodes, the third electrodes crossing the first and second electrodes, the method including the steps of preparing a plurality of driving signal sets having different voltage waveforms to be applied to the first, second, and third electrodes; and applying one of the plurality of the driving signal sets to the first, second, and third electrodes in accordance with a temperature and a time.

Abstract: Provided is a plasma display panel that protects both substrates against distortion when assembled, and reduces a halation effect. The plasma display panel includes: a first substrate and a second substrate facing each other; address electrodes which are formed on the first substrate to extend in a first direction; barrier ribs which are disposed between the first and second substrates, and define discharge cells; phosphor layers which are formed within the discharge cells; first electrodes and second electrodes which are formed on the second substrate to extend in a second direction crossing the first direction; and a dielectric layer which covers the first electrode and the second electrode, wherein the dielectric layer includes grooves formed in correspondence with the barrier ribs, and at least portions of the barrier ribs are inserted into the grooves.

Abstract: A plasma display device includes a plurality of first electrodes and a plurality of second electrodes, the plurality of first and second electrodes adapted to generate a sustain discharge so as to display an image on a screen, a first inductor including a first end coupled to the plurality of first electrodes, a second inductor including a first end coupled to the plurality of first electrodes, the second inductor having an inductance that is less than an inductance of the first inductor, a first driving block adapted to control a voltage of the plurality of first electrodes through the first inductor, and a second driving block adapted to control the voltage of the plurality of first electrodes through the second inductor, the second driving block is located closer to a lower portion of a screen than the first driving block.

Abstract: In a sustain period, a positive voltage is applied to an address electrode during at least one part of a period for applying a last sustain discharge pulse that is gradually increased and applied to a scan electrode. In this manner, an occurrence of misfiring between the address electrode and the sustain electrode of a discharge cell that is sustain-discharged without having been addressed in the next consecutive subfield is reduced or prevented.

Abstract: A plasma display device and a power supply thereof having a fewer number of power sources in the plasma display device is disclosed. The power supply generates a voltage corresponding to a Ve power source by using a variable resistance through a voltage distribution principle without including a Ve power source. In addition, since a power supply circuit including a thermistor is used in order to correspond to a discharge firing voltage which is changed by a temperature, a sustain discharge is stably generated by adjusting a Ve voltage without including a Ve power source.

Abstract: A plasma display includes a plurality of scan electrodes. A scan voltage is sequentially supplied to the plurality of scan electrodes, and a non-scan voltage that is higher than the scan voltage is supplied to scan electrodes to which the scan voltage is supplied. The non-scan voltage is generated by dividing a voltage that is higher than the non-scan voltage and the scan voltage. Thus, a voltage source for supplying the non-scan voltage can be eliminated.

Abstract: A plasma display device and a driving method thereof. A sustain discharge before a reset period for initializing a cell which is sustain discharged in a previous subfield is generated as a weak discharge rather than a strong discharge. By generating a weak sustain discharge, the amount of wall charge formed in the exterior area of electrodes may be reduced. As a result, in the subsequent reset period, the wall charge can be controlled to be appropriate for addressing while preventing misfiring and low discharge.

Abstract: A power supply that is employable by a plasma display device for generating and supplying a plurality of voltages, the power supply including a first power source generating and supplying a first voltage, a transistor having a drain electrically coupled to the first power source, a first resistor having a first end coupled to the first power source and a second end electrically coupled to a gate of the transistor, a second resistor having a first end coupled to the second end of the first resistor and a second end electrically coupled to a second power source supplying a second voltage that is lower than the first voltage, and a capacitor having a first end coupled to a source of the transistor and a second end electrically coupled to the second power source. The coupling of the first end of the capacitor to the source of the transistor may form a third voltage supply node having the third voltage when the capacitor is charged.