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    • 1. 发明授权
    • Plasma display device and plasma display panel drive method
    • 等离子显示装置和等离子显示面板驱动方式
    • US08384623B2
    • 2013-02-26
    • US12743292
    • 2008-11-12
    • Naoyuki TomiokaNaoki Noguchi
    • Naoyuki TomiokaNaoki Noguchi
    • G09G3/28G09G5/10G09G3/10
    • G09G3/2965G09G3/294
    • Sustain discharge is stably caused while power consumption is reduced, and image display quality is improved. A plasma display device has a plasma display panel, an electric power recovering circuit for raising or falling a sustain pulse by resonating an inductor and the inter-electrode capacity of a display electrode pair, and a sustain pulse generating circuit for alternately applying, to the display electrode pair, as many sustain pulses as the number corresponding to the luminance weight in the sustain period of a plurality of subfields that are disposed in one field and have initializing, address, and sustain periods. The sustain pulse generating circuit switches and generates at least three kinds of sustain pulses including a first sustain pulse serving as a reference, a second sustain pulse that rises more gently than the first sustain pulse, and a third sustain pulse that rises more steeply than the first sustain pulse.
    • 在消耗功率降低的同时稳定地进行维持放电,提高图像显示质量。 等离子体显示装置具有等离子体显示面板,用于通过使电感器谐振和显示电极对的电极间电容而使维持脉冲上升或下降的电力恢复电路,以及维持脉冲发生电路,用于交替地施加到 显示电极对,与设置在一个场中并具有初始化,地址和维持周期的多个子场的维持周期中与亮度权重相对应的数量的维持脉冲数量相同。 维持脉冲发生电路切换并产生至少三种维持脉冲,包括用作基准的第一维持脉冲,比第一维持脉冲更温和地上升的第二维持脉冲,以及比第一维持脉冲更陡峭地上升的第三维持脉冲 第一维持脉冲。
    • 3. 发明申请
    • DRIVING DEVICE AND DRIVING METHOD OF PLASMA DISPLAY PANEL AND PLASMA DISPLAY APPARATUS
    • 等离子体显示面板和等离子体显示装置的驱动装置和驱动方法
    • US20100259521A1
    • 2010-10-14
    • US12747003
    • 2008-09-04
    • Toshiyuki MaedaKenji OgawaNaoki NoguchiTakahiko Origuchi
    • Toshiyuki MaedaKenji OgawaNaoki NoguchiTakahiko Origuchi
    • G09G3/28G09G5/00
    • G09G3/293G09G3/2925G09G2320/0228G09G2360/16
    • A two-phase driving operation is performed by a first circuit and a second circuit in at least one sub-field. The first circuit applies a first ramp waveform that drops from a first potential to a second potential to a plurality of first scan electrodes in a setup period, and sequentially applies a scan pulse to the plurality of first scan electrodes in a write period. The second circuit applies a second ramp waveform that drops from the first potential to a third potential that is higher than the second potential to a plurality of second scan electrodes, and then raises the plurality of second scan electrodes to a fourth potential in the setup period, and holds the plurality of second scan electrodes at a fifth potential that is higher than the third potential and lower than the fourth potential in a period where the first scan pulse is applied, and then sequentially applies a scan pulse to the plurality of second electrodes in the write period. Discharge failures during write discharges can be prevented from occurring by employing the two-phase driving operation.
    • 在至少一个子场中由第一电路和第二电路执行两相驱动操作。 第一电路在初始化周期中施加从第一电位降低到第二电位的第一斜坡波形,并且在写入周期中顺序地对多个第一扫描电极施加扫描脉冲。 第二电路对第一扫描电极施加从第一电位下降到高于第二电位的第三电位的第二斜坡波形,然后在初始化周期中将多个第二扫描电极升高到第四电位 并且在施加第一扫描脉冲的周期中将多个第二扫描电极保持在高于第三电位且低于第四电位的第五电位,然后顺序地将多个第二电极施加扫描脉冲 在写期间。 可以通过采用两相驱动操作来防止写放电期间的放电故障。
    • 5. 发明授权
    • Plasma display device, and method for driving plasma display panel
    • 等离子体显示装置和等离子体显示面板的驱动方法
    • US08350784B2
    • 2013-01-08
    • US13055534
    • 2009-08-04
    • Naoyuki TomiokaNaoki Noguchi
    • Naoyuki TomiokaNaoki Noguchi
    • G09G3/28
    • G09G3/2927G09G3/296G09G2310/066
    • In a plasma display panel, abnormal discharge in address periods is suppressed to enhance image display quality. The scan electrode driving circuit generates a first falling down-ramp voltage i.e. down-ramp voltage L2 or down-ramp voltage L4, in initializing periods, generates sustain pulses in sustain periods, generates a rising up-ramp voltage, i.e. erasing up-ramp voltage L3, at the ends of the sustain periods, and applies the voltages to the scan electrodes. After generating the sustain pulses in the sustain periods, the scan electrode driving circuit generates a second down-ramp voltage, i.e. erasing down-ramp voltage L5, which has a portion falling with a gradient gentler than that of down-ramp voltage L2 and down-ramp voltage L4. After generating erasing down-ramp voltage L5, the scan electrode driving circuit generates erasing up-ramp voltage L3 and applies the voltage to the scan electrodes.
    • 在等离子体显示面板中,抑制寻址期间的异常放电,提高图像显示质量。 扫描电极驱动电路在初始化期间产生第一下降斜坡电压即下降斜坡电压L2或下降斜坡电压L4,在维持期间产生维持脉冲,产生上升斜坡电压,即消除上升斜坡 电压L3,在维持周期的末端,并将电压施加到扫描电极。 在维持周期中产生维持脉冲之后,扫描电极驱动电路产生第二下降斜坡电压,即,消除下降斜坡电压L5,其具有比下降斜坡电压L2降低的梯度的下降部分 - 电压L4。 在产生擦除下降斜坡电压L5之后,扫描电极驱动电路产生消除上升斜坡电压L3并将电压施加到扫描电极。
    • 9. 发明申请
    • PLASMA DISPLAY DEVICE AND PLASMA DISPLAY PANEL DRIVE METHOD
    • 等离子体显示装置和等离子显示面板驱动方法
    • US20100253712A1
    • 2010-10-07
    • US12743292
    • 2008-11-12
    • Naoyuki TomiokaNaoki Noguchi
    • Naoyuki TomiokaNaoki Noguchi
    • G09G3/28G09G5/10
    • G09G3/2965G09G3/294
    • Sustain discharge is stably caused while power consumption is reduced, and image display quality is improved. A plasma display device has a plasma display panel, an electric power recovering circuit for raising or falling a sustain pulse by resonating an inductor and the inter-electrode capacity of a display electrode pair, and a sustain pulse generating circuit for alternately applying, to the display electrode pair, as many sustain pulses as the number corresponding to the luminance weight in the sustain period of a plurality of subfields that are disposed in one field and have initializing, address, and sustain periods. The sustain pulse generating circuit switches and generates at least three kinds of sustain pulses including a first sustain pulse serving as a reference, a second sustain pulse that rises more gently than the first sustain pulse, and a third sustain pulse that rises more steeply than the first sustain pulse.
    • 在消耗功率降低的同时稳定地进行维持放电,提高图像显示质量。 等离子体显示装置具有等离子体显示面板,用于通过使电感器谐振和显示电极对的电极间电容而使维持脉冲上升或下降的电力恢复电路,以及维持脉冲发生电路,用于交替地施加到 显示电极对,与设置在一个场中并具有初始化,地址和维持周期的多个子场的维持周期中与亮度权重相对应的数量的维持脉冲数量相同。 维持脉冲发生电路切换并产生至少三种维持脉冲,包括用作基准的第一维持脉冲,比第一维持脉冲更温和地上升的第二维持脉冲,以及比第一维持脉冲更陡峭地上升的第三维持脉冲 第一维持脉冲。