Patent application number | Description | Published |
20080246696 | Plasma display and driving device thereof - A driver circuit for a scan electrode of a plasma display panel is disclosed. The driver circuit has reduced voltage drop in the current path used to drive the scan electrode during a sustain period. Accordingly, the circuit provides improved power efficiency and speed. | 10-09-2008 |
20080266280 | Plasma display and control method thereof - A plasma display and a driving method thereof are disclosed. The plasma display includes a scan electrode, a scan integrated circuit, and a voltage supply unit. The scan integrated circuit applies a scan voltage and a non-scan voltage to the scan electrode during an address period. The voltage supply unit gradually decreases a voltage at the scan electrode to a first voltage during a reset period and supplies the scan voltage to the first terminal during the address period. The voltage supply unit includes a voltage generator that is connected to the first terminal to generate a second voltage by using the scan voltage during the reset period, and a first capacitor that is connected to the voltage generator, the first terminal, and a power source input terminal of the scan integrated circuit, and uses the second voltage supplied from the voltage generator to drive the scan integrated circuit. | 10-30-2008 |
20080272704 | Plasma display and driving method thereof - The present invention relates to a plasma display device and a driving method thereof. The plasma display device includes a first switch, and a second switch. The first switch has a first end electrically connected to a first power source that supplies a first voltage and a second end electrically connected to the plurality of first electrodes, and gradually increases a voltage of the plurality of first electrodes during a reset period. The second switch has a first end electrically connected to a second power source that supplies a second voltage that is less than the first voltage and a second end electrically connected to the plurality of first electrodes. The first and second switches are simultaneously turned on in the reset period. | 11-06-2008 |
20080273021 | PLASMA DISPLAY AND DRIVING METHOD THEREOF - A plasma display and a driving method thereof. The plasma display includes a plurality of first electrodes, a first switch, a second switch, a third switch, and a first capacitor. The first switch is connected between a first power source to supply a first voltage and the plurality of first electrodes. The second switch includes a first terminal electrically connected to the plurality of first electrodes, a second terminal connected to a second power source to supply a second voltage that is lower than the first voltage, and a gate connected to a signal input terminal. The third switch includes a first terminal electrically connected to the plurality of first electrodes, and a gate electrically connected to the first signal input terminal. The first capacitor includes a terminal connected to the second power source, and another terminal connected to a node of the first power source and a second terminal of the third switch. | 11-06-2008 |
20080273025 | Plasma display and driving method thereof - In a plasma display device, a first transistor is coupled between an electrode and a power source supplying a VscL voltage, and a second transistor gradually changing a voltage of the electrode is coupled between the electrode and the power source. First and second resistors are coupled in series between the electrode and the second transistor. A node of the first and second resistors is coupled to a control terminal of a regulator, an anode terminal of the regulator is coupled to the electrode, and a cathode terminal of the regulator is coupled to the second transistor. The regulator has a reference voltage, and connects the anode terminal and the cathode terminal when the second transistor is turned on and a node voltage of a node between the first and second resistors is greater than the reference voltage and disconnects the anode terminal and the cathode terminal when the node voltage is less than the reference voltage. That is, a voltage of the electrode can be decreased to a Vnf voltage that is greater than a VscL voltage by repeatedly connecting and disconnecting the anode terminal and the cathode terminal of the regulator. In this way, voltages of two levels can be supplied from one power source. | 11-06-2008 |
20090128454 | Plasma display device, and driving apparatus and method thereof - A plasma display device having a first switch is connected between the electrode and a first power supply that applies a high level voltage, and a second switch is connected between the electrode and a second power supply that applies a low level voltage. A capacitor for collecting power is connected to one end of at least one inductor. A first diode and a third switch are coupled in series between the electrode and a second end of at least one of the inductors. Also, a second diode and a fourth switch are coupled in series between the electrode and a second end of at least one of the inductors. Here, a clamping circuit unit connected to the second end of at least one of the inductors absorbs resonance energy generated by at least one of the inductors when the first and second switches are turned on. | 05-21-2009 |
20090315811 | PLASMA DISPLAY AND DRIVING APPARATUS THEREOF - A plasma display and a driving apparatus thereof with an improved energy recovery circuit configured to reduce resonances between a plurality of capacitors. Accordingly to an embodiment of the present invention, a plasma display has an energy recovery circuit that includes an energy recovery capacitor. The energy recovery circuit is configured to form a first path between the energy recovery capacitor and a display electrode to change a voltage at the display electrode in a sustain period. The energy recovery capacitor includes a plurality of capacitors configured to be charged concurrently, and the energy recovery circuit is configured to form a second path between the plurality of capacitors. A product of an inductance formed on the second path and a capacitance formed on the second path is greater than twice a product of an inductance formed on the first path and a capacitance formed on the first path. | 12-24-2009 |
20100020058 | Plasma display and driving method thereof - A plasma display including a first electrode and a second electrode formed in parallel is disclosed. The plasma display gradually decreases a voltage at the second electrode from a second voltage to a third voltage while a first voltage is applied to the first electrode during a reset period. The plasma display changes the first voltage according to a change in the discharge firing voltage between the first electrode and the second electrode. The change in the discharge firing voltage may be determined in accordance with an accumulated driving time or a discharge time during the reset period. | 01-28-2010 |
20100033406 | PLASMA DISPLAY AND DRIVING APPARATUS THEREOF - A plasma display with an improved energy recovery circuit. The plasma display includes a display electrode coupled to an energy recovery circuit. The energy recovery circuit includes an energy recovery capacitor and a circuit unit that is configured to form a first path between the energy recovery capacitor and the display electrode to change a voltage at the display electrode in a sustain period. The energy recovery capacitor includes a plurality of capacitors configured to be charged concurrently, and the circuit unit is configured to selectively substantially prevent a current from flowing between two capacitors of the plurality of capacitors via a second path. | 02-11-2010 |