公开(公告)号：US20090091514A1

公开(公告)日：2009-04-09

申请号：US11913815

申请日：2007-02-26

申请人： Takahiko Origuchi ,  Hidehiko Shoji ,  Mitsuo Ueda

发明人： Takahiko Origuchi ,  Hidehiko Shoji ,  Mitsuo Ueda

IPC分类号： G09G3/28

CPC分类号： G09G3/2022 ,  G09G3/2927 ,  G09G3/296 ,  G09G2310/066

摘要： Plural subfields are provided in one single field period, where each subfield has an initialization period during which a gradient waveform voltage gently falling is applied to a scan electrode to generate initializing discharge in a discharge cell; a writing period during which a scan pulse voltage is applied to a scan electrode to generate writing discharge in a discharge cell; and a sustain period during which sustain discharge is generated in a discharge cell selected, by the number of times corresponding to a luminance weight. The lowest voltage of a falling gradient waveform voltage in a subfield with the smallest luminance weight is set so as to be lower than that with the largest luminance weight. A method of driving a plasma display panel is provided that generates stable writing discharge without increasing voltage required for generating writing discharge even for a large-screen, high-luminance panel.

摘要翻译： 提供多个子场，其中每个子场具有初始化周期，在该初始化期间，缓慢下降的梯度波形电压被施加到扫描电极，以在放电单元中产生初始化放电; 将扫描脉冲电压施加到扫描电极以在放电单元中产生写入放电的写入周期; 以及在所选择的放电单元中产生持续放电的维持期间，与亮度权重对应的次数。 将具有最小亮度权重的子场中的下降梯度波形电压的最低电压设置为低于具有最大亮度权重的子场中的最低电压。 提供了一种驱动等离子体显示面板的方法，即使对于大屏幕，高亮度面板也能产生稳定的写入放电而不增加产生写入放电所需的电压。

公开(公告)号：US08570248B2

公开(公告)日：2013-10-29

申请号：US12669826

申请日：2008-07-10

申请人： Takahiko Origuchi ,  Hidehiko Shoji

发明人： Takahiko Origuchi ,  Hidehiko Shoji

IPC分类号： G09G3/28

CPC分类号： G09G3/2927 ,  G09G3/294 ,  G09G3/2965 ,  G09G2310/066 ,  G09G2320/0209

摘要： A voltage of sustain electrodes is lowered from Ve1 to a ground potential at a time point immediately before a first SF (sub-field). Then, a pulsed positive voltage is applied to data electrodes at a starting time point of a setup period of the first SF. Immediately before this, a large amount of negative wall charges is stored on the sustain electrodes and positive wall charges are stored on the data electrodes, and therefore application of the pulsed positive voltage to the data electrodes generates strong discharges between the sustain electrodes and the data electrodes. After that, application of a ramp voltage to scan electrodes is started at a time point, generating setup discharges between the scan electrodes and the sustain electrodes.

摘要翻译： 在第一SF（子场）之前的时刻，维持电极的电压从Ve1降低到接地电位。 然后，在第一SF的建立周期的起始时刻，对数据电极施加脉冲正电压。 在此之前，在维持电极上存储大量的负壁电荷，并且在数据电极上存储正的壁电荷，因此向数据电极施加脉冲正电压在维持电极和数据之间产生强放电 电极。 之后，在时间点开始对扫描电极施加斜坡电压，产生扫描电极与维持电极之间的建立放电。

公开(公告)号：US08471785B2

公开(公告)日：2013-06-25

申请号：US12677223

申请日：2008-08-20

申请人： Takahiko Origuchi ,  Hidehiko Shoji ,  Yasuaki Mutou ,  Takateru Sawada

发明人： Takahiko Origuchi ,  Hidehiko Shoji ,  Yasuaki Mutou ,  Takateru Sawada

IPC分类号： G09G3/28

CPC分类号： G09G3/2927 ,  G09G3/2965 ,  G09G2310/066

摘要： A first ramp waveform (RW1) rising from a first potential (Vscn) to a second potential (Vscn+Vset) is applied to a plurality of scan electrodes (SCi) in a first period (t5 to t6), and a driving waveform dropping from a third potential (Ve1) to a fourth potential (0V) is applied to a plurality of sustain electrodes (SUi) before the first period (t5 to t6), and the plurality of sustain electrodes are held at the fourth potential (0V) in the first period (t5 to t6). At this time, a second ramp waveform (RW10) rising from a fifth potential (0 V) to a sixth potential (Vd) according to change of a potential of the first ramp waveform (RW1) is applied to a plurality of data electrodes (Dj) in a second period (t5 to t5a) that starts at a starting time point (t5) of the first period (t5 to t6) and is shorter than the first period (t5 to t6), thereby preventing generation of strong discharges between the plurality of data electrodes (Dj) and the plurality of scan electrodes (SCi).

摘要翻译： 从第一电位（Vscn）向第二电位（Vscn + Vset）上升的第一斜坡波形（RW1）在第一时段（t5至t6）中被施加到多个扫描电极（SCi），并且驱动波形下降 从第三电位（Ve1）到第四电位（0V）在第一期间（t5〜t6）之前施加到多个维持电极（SUi），并且多个维持电极保持在第四电位（0V） 在第一个时期（t5到t6）。 此时，根据第一斜坡波形（RW1）的电位的变化从第五电位（0V）向第六电位（Vd）上升的第二斜坡波形（RW10）被施加到多个数据电极 （t5〜t6）的开始时刻（t5）开始的第二期间（t5〜t5a），并且短于第一期间（t5〜t6），从而防止在第一期间 多个数据电极（Dj）和多个扫描电极（SCi）。

公开(公告)号：US20120287105A1

公开(公告)日：2012-11-15

申请号：US13522674

申请日：2011-01-19

申请人： Kazuhiro Kanai ,  Hidehiko Shoji ,  Naoyuki Tomioka ,  Takahiko Origuchi

发明人： Kazuhiro Kanai ,  Hidehiko Shoji ,  Naoyuki Tomioka ,  Takahiko Origuchi

IPC分类号： G09G5/00 ,  G09G3/28

CPC分类号： G09G3/2037 ,  G09G3/2927 ,  G09G3/293 ,  G09G3/294 ,  G09G3/296 ,  G09G2310/066 ,  G09G2330/021

摘要： The present invention provides a method of driving a plasma display apparatus, which allows a high-luminance large-sized panel to have stable address discharge, with increase in power consumption suppressed. In the method, one field is divided into a plurality of subfields, each of which having an address period and a sustain period. A ramp voltage is applied to the scan electrodes in the end of the sustain period. The ramp voltage increases from a base potential toward a predetermined voltage, after reaching the predetermined voltage, the ramp voltage is maintained at the voltage for a predetermined period of time and decreases to the base potential. Besides, when the number of the sustain pulses is not greater than a predetermined threshold in a subfield, the predetermined period of time of an immediately after subfield is determined to be longer than the predetermined period of time of other subfields.

摘要翻译： 本发明提供一种驱动等离子体显示装置的方法，其能够使高亮度大尺寸面板具有稳定的寻址放电，从而抑制功耗的增加。 在该方法中，一个场被分成多个子场，每个子场具有寻址周期和维持周期。 在维持周期结束时，对扫描电极施加斜坡电压。 斜坡电压从基极电位向预定电压增加，在达到预定电压之后，斜坡电压在该电压下保持预定时间段并降低到基极电位。 此外，当在子场中维持脉冲的数量不大于预定阈值时，确定紧接在之后的子场的预定时间段长于其他子场的预定时间段。

公开(公告)号：US20120113165A1

公开(公告)日：2012-05-10

申请号：US13383304

申请日：2010-07-14

申请人： Takahiko Origuchi ,  Hidehiko Shoji ,  Naoyuki Tomioka

发明人： Takahiko Origuchi ,  Hidehiko Shoji ,  Naoyuki Tomioka

IPC分类号： G09G3/10 ,  G09G5/10

CPC分类号： H04N5/70 ,  G09G3/293 ,  G09G3/294 ,  G09G3/296 ,  G09G2320/0686 ,  G09G2360/16

摘要： A stable address discharge is caused by preventing an increase in the scan pulse voltage (amplitude) necessary for causing a stable address discharge, and thereby achieves high image display quality. For this purpose, the following operations are performed. The image display area of a plasma display panel is divided into a plurality of regions. In each region, the rate of the number of discharge cells to be lit with respect to the number of all discharge cells in each region is detected, as a partial light-emitting rate of each region, and the partial light-emitting rate is detected in each subfield. The region having the maximum partial light-emitting rate is detected and set as a first region. The regions adjacent to the first region are set as second regions, and a predetermined offset value is added to the partial light-emitting rates of the second regions so as to provide corrected partial light-emitting rates. Magnitude comparison is performed between the partial light-emitting rates and corrected partial light-emitting rates, and the order of address operations on the respective regions is determined based on the result of the magnitude comparison.

摘要翻译： 通过防止导致稳定的寻址放电所需的扫描脉冲电压（幅度）的增加而产生稳定的寻址放电，从而实现高图像显示质量。 为此，执行以下操作。 等离子体显示面板的图像显示区域被分成多个区域。 在每个区域中，检测相对于每个区域中的所有放电单元的数量的放电单元的数量的比率作为每个区域的部分发光率，并且检测部分发光率 在每个子领域。 检测具有最大部分发光率的区域并将其设置为第一区域。 将与第一区域相邻的区域设置为第二区域，并且将预定偏移值添加到第二区域的部分发光率，以提供校正的部分发光率。 在部分发光率和校正的部分发光率之间进行幅度比较，并且基于幅度比较的结果来确定各个区域上的地址操作的顺序。

公开(公告)号：US08098217B2

公开(公告)日：2012-01-17

申请号：US12066552

申请日：2006-09-13

申请人： Hidehiko Shoji ,  Takahiko Origuchi

发明人： Hidehiko Shoji ,  Takahiko Origuchi

IPC分类号： G09G3/28

CPC分类号： G09G3/2022 ,  G09G3/2942 ,  G09G3/2965 ,  G09G2310/066 ,  G09G2320/0238

摘要： Any of first and second sub-field configurations is selected. In the first sub-field configuration, a width of a write pulse of a sub-field with a lowest display luminance is not more than widths of write pulses of the other sub-fields. In the second sub-field configuration, the width of the write pulse of the sub-field with the lowest display luminance is larger than the widths of the write pulses of the other sub-fields. When the first sub-field configuration is selected, a voltage applied to a sustain electrode in a write period of the sub-field with the lowest display luminance is set higher than a voltage applied to the sustain electrode in write periods of the other sub-fields. When the second sub-field configuration is selected, the voltage applied to the sustain electrode in the write period of the sub-field with the lowest display luminance is set to be the same as the voltage applied to the sustain electrode in the write period of any of the other sub-fields.

摘要翻译： 选择第一和第二子场配置中的任何一个。 在第一子场配置中，具有最低显示亮度的子场的写入脉冲的宽度不大于其他子场的写入脉冲的宽度。 在第二子场配置中，具有最低显示亮度的子场的写入脉冲的宽度大于其他子场的写入脉冲的宽度。 当选择第一子场配置时，在具有最低显示亮度的子场的写入周期中施加到维持电极的电压被设置为高于在另一个子场配置的写入周期中施加到维持电极的电压， 领域。 当选择第二子场配置时，在具有最低显示亮度的子场的写入周期中施加到维持电极的电压被设置为与在写入周期中施加到维持电极的电压相同 任何其他子字段。

公开(公告)号：US20120001882A1

公开(公告)日：2012-01-05

申请号：US12674071

申请日：2008-08-26

申请人： Takahiko Origuchi ,  Hidehiko Shoji ,  Hideki Nakata

发明人： Takahiko Origuchi ,  Hidehiko Shoji ,  Hideki Nakata

IPC分类号： G09G5/00 ,  G09G3/28

CPC分类号： G09G3/2927 ,  G09G3/2022 ,  G09G3/293 ,  G09G3/296 ,  G09G3/2965 ,  G09G2310/0218 ,  G09G2310/066 ,  G09G2330/028

摘要： In a two-phase driving operation that is performed in at least a sub-field having a largest luminance weight, a first ramp waveform that drops from a first potential to a second potential is applied to a plurality of first scan electrodes, a second ramp waveform that drops from a third potential that is higher than the first potential to a fourth potential that is higher than the second potential is applied to a plurality of second scan electrodes in a setup period, and a scan pulse is sequentially applied to the plurality of first scan electrodes, and then a scan pulse is sequentially applied to the plurality of second scan electrodes in a write period. The two-phase driving operation is employed to prevent a discharge failure during a write discharge.

摘要翻译： 在至少具有最大亮度权重的子场执行的两相驱动操作中，从多个第一扫描电极施加从第一电位降至第二电位的第一斜坡波形，第二斜坡 在初始化期间向多个第二扫描电极施加从高于第一电位的第三电位下降到高于第二电位的第四电位的波形，并且扫描脉冲依次施加到多个 第一扫描电极，然后在写入周期中将扫描脉冲依次施加到多个第二扫描电极。 采用两相驱动操作来防止在写入放电期间的放电故障。

公开(公告)号：US08081144B2

公开(公告)日：2011-12-20

申请号：US12088762

申请日：2007-02-26

申请人： Takahiko Origuchi ,  Hidehiko Shoji ,  Mitsuo Ueda

发明人： Takahiko Origuchi ,  Hidehiko Shoji ,  Mitsuo Ueda

IPC分类号： G09G3/28

CPC分类号： G09G3/296 ,  G09G3/2022 ,  G09G3/2927 ,  G09G2310/066 ,  G09G2320/0238 ,  G09G2330/028

摘要： A plasma display panel is driven by providing a plurality of subfields within one field period, the subfield having an initializing period in which the initializing discharge is generated in a discharge cell by applying a ramp-waveform voltage that is gradually descending to a scan electrode, an address period in which an address discharge is generated in the discharge cell by applying a scan pulse voltage to the scan electrode, and a sustain period in which sustain discharges by the number of times corresponding to the luminance weight are generated in the selected discharge cell. The lowest voltage is set of the descending ramp-waveform voltage in the subfield where the luminance weight is the smallest lower than the same voltage in the subfield where the luminance weight is the largest, and a voltage is kept for a prescribed period after the descending ramp-waveform voltage reaches the lowest voltage in the subfield where the luminance weight is the smallest.

摘要翻译： 通过在一个场周期内提供多个子场来驱动等离子体显示面板，该子场具有通过施加逐渐下降到扫描电极的斜坡波形电压而在放电单元中产生初始化放电的初始化周期， 通过向扫描电极施加扫描脉冲电压，在放电单元中产生寻址放电的寻址期间，并且在所选择的放电单元中产生维持放电与亮度权重对应的次数的维持期间 。 在亮度权重最大的子场中亮度权重最小的子场中的下降斜坡波形电压设定为最低电压，并且在下降后将电压保持规定期间 斜坡波形电压达到亮度权重最小的子场中的最低电压。

公开(公告)号：US08068069B2

公开(公告)日：2011-11-29

申请号：US11913815

申请日：2007-02-26

申请人： Takahiko Origuchi ,  Hidehiko Shoji ,  Mitsuo Ueda

发明人： Takahiko Origuchi ,  Hidehiko Shoji ,  Mitsuo Ueda

IPC分类号： G09G3/28

CPC分类号： G09G3/2022 ,  G09G3/2927 ,  G09G3/296 ,  G09G2310/066

摘要： Plural subfields are provided in one single field period, where each subfield has an initialization period during which a gradient waveform voltage gently falling is applied to a scan electrode to generate initializing discharge in a discharge cell; a writing period during which a scan pulse voltage is applied to a scan electrode to generate writing discharge in a discharge cell; and a sustain period during which sustain discharge is generated in a discharge cell selected, by the number of times corresponding to a luminance weight. The lowest voltage of a falling gradient waveform voltage in a subfield with the smallest luminance weight is set so as to be lower than that with the largest luminance weight. A method of driving a plasma display panel is provided that generates stable writing discharge without increasing voltage required for generating writing discharge even for a large-screen, high-luminance panel.

摘要翻译： 提供多个子场，其中每个子场具有初始化周期，在该初始化期间，缓慢下降的梯度波形电压被施加到扫描电极，以在放电单元中产生初始化放电; 将扫描脉冲电压施加到扫描电极以在放电单元中产生写入放电的写入周期; 以及在所选择的放电单元中产生持续放电的维持期间，与亮度权重对应的次数。 将具有最小亮度权重的子场中的下降梯度波形电压的最低电压设置为低于具有最大亮度权重的子场中的最低电压。 提供了一种驱动等离子体显示面板的方法，即使对于大屏幕，高亮度面板也能产生稳定的写入放电而不增加产生写入放电所需的电压。

公开(公告)号：US20110090195A1

公开(公告)日：2011-04-21

申请号：US12866965

申请日：2009-02-17

申请人： Takahiko Origuchi ,  Hidehiko Shoji

发明人： Takahiko Origuchi ,  Hidehiko Shoji

IPC分类号： G09G3/10 ,  G06F3/038

CPC分类号： G09G3/2927 ,  G09G3/2022 ,  G09G3/2965 ,  G09G2310/066 ,  G09G2320/0228

摘要： A driving device drives a plasma display panel having a plurality of discharge cells at intersections of a plurality of scan electrodes and a plurality of sustain electrodes with a plurality of data electrodes by a sub-field method. A scan electrode drive circuit applies a first ramp waveform that drops from a first potential to a second potential to the plurality of scan electrodes in a first period in a setup period of a sub-field. A sustain electrode drive circuit applies a second ramp waveform that drops from a fourth potential to a fifth potential to the plurality of sustain electrodes when a potential detection circuit detects that the plurality of scan electrodes attain a third potential that is lower than the first potential and higher than the second potential in the first period.

摘要翻译： 驱动装置通过子场方法驱动具有多个放电单元的等离子体显示面板，该多个放电单元在多个扫描电极和多个维持电极的交点处具有多个数据电极。 在子场的建立周期中，扫描电极驱动电路在第一周期中对从多个扫描电极施加从第一电位下降到第二电位的第一斜坡波形。 当电位检测电路检测到多个扫描电极达到低于第一电位的第三电位时，维持电极驱动电路将从第四电位下降到第五电位的第二斜坡波形施加到多个维持电极， 高于第一期的第二个潜力。