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Makoto Onozawa
Makoto Onozawa, Yokohama JP
| Patent application number | Description | Published |
|---|---|---|
| 20080278082 | PLASMA DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME - There is provided a method for driving a plasma display device characterized by including a first step of turning off first and fourth switching devices and turning on second and third switching devices, a second step of turning on the first switching device and turning off the second to the fourth switching devices after the first step and a third step of turning on the first and the fourth switching devices and turning off the second and the third switching devices after the second step. | 11-13-2008 |
| 20090096781 | Plasma Display Device And Driving Method Thereof - A driving method of a plasma display device, the plasma display device having a plurality of first and second electrodes disposed adjacent to each other and a plurality of third electrodes disposed so as to intersect with the first and second electrodes, the driving method includes providing a reset period, an address period and a sustain discharge period for driving of the plasma display device, applying to the second electrode in the reset period a voltage with a waveform in which an applied voltage value increases with time, shortening a sustain time of achieved potential of the voltage with the waveform when a first display ratio of an input video signal is low as compared with a second display ratio which is higher than the first display ratio. | 04-16-2009 |
| 20100201680 | PLASMA DISPLAY DEVICE AND DRIVING METHOD THEREOF - A driving method of a plasma display device, the plasma display device having a plurality of first and second electrodes disposed adjacent to each other and a plurality of third electrodes disposed so as to intersect with the first and second electrodes, the driving method includes providing a reset period, an address period and a sustain discharge period for driving of the plasma display device, applying to the second electrode in the reset period a voltage with a waveform in which an applied voltage value increases with time, shortening a sustain time of achieved potential of the voltage with the waveform when a first display ratio of an input video signal is low as compared with a second display ratio which is higher than the first display ratio. | 08-12-2010 |
Makoto Onozawa, Miyazaki JP
| Patent application number | Description | Published |
|---|---|---|
| 20090079722 | PLASMA DISPLAY DEVICE - Provided is a plasma display device, in which a brightness difference caused in a plasma display panel of a large screen is reduced. In order to reduce the value of a streaking or a brightness difference on the plasma display panel screen and to reduce the brightness difference between the central portion and the two end portions of the screen, the plasma display device comprises current limiting means ( | 03-26-2009 |
| 20090231234 | PLASMA DISPLAY APPARATUS - A plasma display apparatus wherein the unevenness in intensity between the electrode lines of a plasma display panel is reduced. In a plasma display apparatus, the temperature difference between the output elements of electrode drive circuits of a plurality of electrode groups is determined, and then a control signal, which is generated in accordance with the determined temperature difference, is used to control the gas discharge currents, which flow into a plurality of electrode groups, for example, odd-numbered electrodes and even-numbered electrodes, in such a manner that they are uniformly supplied, thereby preventing the unevenness in intensity between the electrode line. | 09-17-2009 |
| 20090284447 | PLASMA DISPLAY APPARATUS - An object of the present invention is to reduce power consumption and heat generation in an A/S separating circuit for preventing an inflow of an auxiliary voltage into a sustain discharge voltage source in a Y electrode driver circuit or an X electrode driver circuit of a plasma display apparatus. In the present invention, a sustain-voltage generating circuit in the Y-electrode driver circuit or the X-electrode driver circuit is configured of a bidirectional switch, and the A/S separating circuit is removed. | 11-19-2009 |
Makoto Onozawa, Yokohama-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20080284685 | Plasma display device and capacitive load driving circuit - A problem is to be solved that there is to be provided a plasma display device capable of generating driving signals with less variation in delay time and without carrying out any phase adjustment. There is provided a plasma display device including; a first display electrode; a second display electrode adapted to cause a discharge to occur between the first display electrode and the second display electrode; a first display electrode drive circuit for applying a discharge voltage to the first display electrode; and a second display electrode drive circuit for applying a discharge voltage to the second display electrode. The first display electrode drive circuit has a first output element for supplying a first electric potential to the first display electrode in accordance with a first input signal which is inputted by using a transformer. | 11-20-2008 |