公开(公告)号：US20130278649A1

公开(公告)日：2013-10-24

申请号：US13995011

申请日：2011-12-22

申请人： Ayuhiko Saito ,  Takahiko Origuchi ,  Yuya Shiozaki ,  Naoyuki Tomioka ,  Hidehiko Shoji

发明人： Ayuhiko Saito ,  Takahiko Origuchi ,  Yuya Shiozaki ,  Naoyuki Tomioka ,  Hidehiko Shoji

IPC分类号： G09G3/28

CPC分类号： G09G3/28 ,  G09G3/2022 ,  G09G3/2927 ,  G09G3/2965 ,  G09G2310/066

摘要： In the plasma display apparatus, address discharge is caused stably. For this purpose, one of a forced initializing operation and a selective initializing operation is performed in the initializing period. Then, one field includes a specific-cell initializing subfield having an initializing period in which a forced initializing operation is performed in a specific discharge cell and a selective initializing operation is performed in the other discharge cells. In the address period of the specific-cell initializing subfield, the period in which a scan pulse and an address pulse are simultaneously applied to a discharge cell having undergone the selective initializing operation in the initializing period of the specific-cell initializing subfield is made longer than the period in which a scan pulse and an address pulse are simultaneously applied to a discharge cell having undergone the forced initializing operation in the initializing period of the specific-cell initializing subfield.

摘要翻译： 在等离子体显示装置中，稳定地产生寻址放电。 为此，在初始化期间进行强制初始化动作和选择初始化动作。 然后，一个场包括特定单元初始化子场，该特定单元初始化子场具有在特定放电单元中进行强制初始化动作的初始化期间，在其他放电单元中进行选择初始化动作。 在特定单元初始化子场的寻址周期中，将扫描脉冲和寻址脉冲同时施加到在特定单元初始化子场的初始化周期中经过选择性初始化操作的放电单元的周期变长 比在特定单元初始化子场的初始化期间同时对已进行强制初始化动作的放电单元施加扫描脉冲和寻址脉冲的期间。

公开(公告)号：US08355017B2

公开(公告)日：2013-01-15

申请号：US12812151

申请日：2009-03-27

申请人： Naoyuki Tomioka ,  Hidehiko Shoji

发明人： Naoyuki Tomioka ,  Hidehiko Shoji

IPC分类号： G09G5/00 ,  G09G3/28 ,  G06F3/038

CPC分类号： G09G3/296 ,  G09G3/2022 ,  G09G3/2927 ,  G09G3/2932 ,  G09G2310/066 ,  G09G2320/0228 ,  G09G2320/0238

摘要： The wall charge is appropriately adjusted in the initializing period, and occurrence of an abnormal discharge and an unlit cell is suppressed in the address period. Therefore, a plasma display device has a plasma display panel having a plurality of discharge cells including a display electrode pair that is formed of a scan electrode and a sustain electrode, and a scan electrode driving circuit. The scan electrode driving circuit disposes a plurality of subfields having an initializing period, an address period, and a sustain period in one field, generates a decreasing down-ramp voltage in the initializing period, and generates a negative scan pulse voltage and applies it to the scan electrodes in the address period. In the initializing period, after the generation of the down-ramp voltage, the scan electrode driving circuit generates negative pulse voltage lower than the minimum voltage of the down-ramp voltage and applies it to the scan electrodes.

摘要翻译： 在初始化期间适当地调整壁电荷，并且在寻址期间抑制异常放电和不点亮电池的发生。 因此，等离子体显示装置具有具有包括由扫描电极和维持电极形成的显示电极对的多个放电单元的等离子体显示面板和扫描电极驱动电路。 扫描电极驱动电路在一场中配置具有初始化周期，地址周期和维持期间的多个子场，在初始化期间产生下降斜坡电压，生成负扫描脉冲电压，并将其施加到 扫描电极在寻址周期。 在初始化期间，在产生下降斜坡电压之后，扫描电极驱动电路产生低于下降斜坡电压的最小电压的负脉冲电压并将其施加到扫描电极。

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：US20130241972A1

公开(公告)日：2013-09-19

申请号：US13990014

申请日：2011-12-01

申请人： Takahiko Origuchi ,  Yuya Shiozaki ,  Naoyuki Tomioka ,  Hidehiko Shoji

发明人： Takahiko Origuchi ,  Yuya Shiozaki ,  Naoyuki Tomioka ,  Hidehiko Shoji

IPC分类号： G09G3/298

CPC分类号： G09G3/298 ,  G09G3/2022 ,  G09G3/2927 ,  G09G3/2965 ,  G09G2310/066

摘要： In a plasma display apparatus, contrast is enhanced and a stable address discharge is caused. For this purpose, one of a forced initializing operation and a selective initializing operation is performed in initializing periods. A specified-cell initializing subfield and a selective initializing subfield are set in one field. In the specified-cell initializing subfield, the forced initializing operation is performed on specified discharge cells and the selective initializing operation is performed on the other discharge cells. In the selective initializing subfield, the selective initializing operation is performed on all the discharge cells. In the selective initializing period, a down-ramp waveform voltage is applied to the scan electrodes and a positive voltage is applied to the data electrodes. In the selective initializing subfield, based on the load calculated in the address period of the immediately preceding subfield, the minimum voltage of the down-ramp waveform voltage is controlled.

摘要翻译： 在等离子体显示装置中，对比度增强，并且产生稳定的寻址放电。 为此，在初始化期间进行强制初始化动作和选择初始化动作。 在一个字段中设置指定单元格初始化子字段和选择性初始化子字段。 在指定单元初始化子场中，对规定的放电单元进行强制初始化动作，对其他放电单元进行选择初始化动作。 在选择性初始化子场中，对所有放电单元执行选择性初始化操作。 在选择初始化期间，向扫描电极施加下降斜坡波形电压，向数据电极施加正电压。 在选择性初始化子场中，根据在前一子场的寻址周期中计算的负载，控制下斜坡波形电压的最小电压。

公开(公告)号：US20120280963A1

公开(公告)日：2012-11-08

申请号：US13522260

申请日：2011-01-19

申请人： Keiji Akamatsu ,  Yuichi Sakai ,  Minoru Takeda ,  Hidehiko Shoji ,  Naoyuki Tomioka

发明人： Keiji Akamatsu ,  Yuichi Sakai ,  Minoru Takeda ,  Hidehiko Shoji ,  Naoyuki Tomioka

IPC分类号： G09G5/00 ,  G09G3/28

CPC分类号： G09G3/296 ,  G09G3/2927 ,  G09G3/2965 ,  G09G2330/026 ,  G09G2330/027

摘要： The present invention allows a plasma display apparatus having a high-luminance panel to decrease initializing bright points that easily occur just after power-on of the apparatus, enhancing the quality of display image. The panel has discharge cells, each of which including a data electrode, and a display electrode pair formed of a scan electrode and a sustain electrode. In the driving method of the panel, one field period is formed of subfields, each of which including an initializing period for generating initializing discharge in the discharge cells, an address period for applying scan pulses to the scan electrodes and applying address pulses to the data electrodes, and a sustain period for applying sustain pulses to the data electrode pairs. In the structure above, a predetermined period after power-off of the apparatus has no generation of the address pulses, the scan pulses, and the sustain pulses.

摘要翻译： 本发明允许具有高亮度面板的等离子体显示装置降低初始化装置刚刚开启之后容易出现的亮点，从而提高显示图像的质量。 面板具有包括数据电极的放电单元和由扫描电极和维持电极形成的显示电极对。 在面板的驱动方法中，一个场周期由子场形成，每个子场包括用于在放电单元中产生初始化放电的初始化周期，用于向扫描电极施加扫描脉冲的寻址周期，并将数据施加到数据 电极和用于将维持脉冲施加到数据电极对的维持周期。 在上述结构中，设备断电后的预定周期不产生寻址脉冲，扫描脉冲和维持脉冲。

公开(公告)号：US20120280954A1

公开(公告)日：2012-11-08

申请号：US13520696

申请日：2011-01-19

申请人： Naoyuki Tomioka ,  Takahiko Origuchi ,  Hidehiko Shoji

发明人： Naoyuki Tomioka ,  Takahiko Origuchi ,  Hidehiko Shoji

IPC分类号： G09G5/00 ,  G09G3/28

CPC分类号： G09G3/296 ,  G09G3/2022 ,  G09G3/2927 ,  G09G3/293 ,  G09G2310/0218

摘要： Stable address discharge is caused even in a plasma display panel where the definition is enhanced and the screen is enlarged. For this purpose, in a driving method of a plasma display panel, the image display region of the panel is divided into a plurality of partial display regions each of which includes a plurality of consecutively arranged scan electrodes. In each partial display region, a sequential address operation of sequentially applying scan pulses to the scan electrodes based on the arranging sequence of the scan electrodes on the panel is performed in the address period. To the scan electrode to which a scan pulse is to be firstly applied in the address period, a scan pulse of which the pulse width is set longer than that of the scan pulse to be applied to the other scan electrodes is applied.

摘要翻译： 甚至在等离子体显示面板中也引起了稳定的寻址放电，其中定义被增强并且屏幕被放大。 为此，在等离子体显示面板的驱动方法中，将面板的图像显示区域划分为多个部分显示区域，每个部分显示区域包括多个连续排列的扫描电极。 在每个部分显示区域中，在寻址周期中执行基于面板上的扫描电极的布置顺序将扫描脉冲顺序地施加到扫描电极的顺序地址操作。 对于在寻址周期中要首先施加扫描脉冲的扫描电极，施加脉冲宽度被设定为长于施加到其它扫描电极的扫描脉冲的扫描脉冲的扫描脉冲。

公开(公告)号：US20120092394A1

公开(公告)日：2012-04-19

申请号：US13378188

申请日：2010-06-17

申请人： Hidehiko Shoji ,  Takahiko Origuchi ,  Naoyuki Tomioka

发明人： Hidehiko Shoji ,  Takahiko Origuchi ,  Naoyuki Tomioka

IPC分类号： G09G3/28 ,  G09G5/10

CPC分类号： G09G3/296 ,  G09G3/2022 ,  G09G3/293 ,  G09G2310/0213 ,  G09G2330/025 ,  G09G2340/16 ,  G09G2360/16

摘要： A stable address discharge is caused by preventing an increase in the necessary scan pulse voltage (amplitude), and thereby achieves high image display quality. For this purpose, the image display area of a plasma display panel is divided into a plurality of regions, and a partial light-emitting rate is detected in each region. The partial light-emitting rate in a current subfield is set as a first partial light-emitting rate. The partial light-emitting rate used for magnitude comparison between the partial light-emitting rates in a subfield identical with the current subfield in a field immediately preceding the field to which the current subfield belongs to is set as a second partial light-emitting rate. The absolute value of the difference between the first partial light-emitting rate and the second partial light-emitting rate is calculated in each region. In the region where the value is equal to or larger than a light-emitting rate threshold value, the first partial light-emitting rate is used for the magnitude comparison between the partial light-emitting rates in the current subfield. In the region where the value is smaller than the light-emitting rate threshold value, the second partial light-emitting rate is used for the magnitude comparison between the partial light-emitting rates in the current subfield.

摘要翻译： 通过防止必要的扫描脉冲电压（振幅）的增大，可以实现稳定的寻址放电，从而实现高的图像显示质量。 为此，等离子体显示面板的图像显示区域被划分为多个区域，并且在每个区域中检测到部分发光率。 将当前子场中的部分发光率设定为第一部分发光率。 将与当前子场所属的场之前的场中与当前子场相同的子场中的部分发光率之间的幅度比较的部分发光率设定为第二部分发光率。 在各区域中计算出第一部分发光率与第二部分发光率之差的绝对值。 在该值等于或大于发光率阈值的区域中，第一部分发光率用于当前子场中的部分发光率之间的幅度比较。 在该值小于发光率阈值的区域中，将第二部分发光率用于当前子场中的部分发光率之间的幅度比较。

公开(公告)号：US20100277465A1

公开(公告)日：2010-11-04

申请号：US12812151

申请日：2009-03-27

申请人： Naoyuki Tomioka ,  Hidehiko Shoji

发明人： Naoyuki Tomioka ,  Hidehiko Shoji

IPC分类号： G06F3/038

CPC分类号： G09G3/296 ,  G09G3/2022 ,  G09G3/2927 ,  G09G3/2932 ,  G09G2310/066 ,  G09G2320/0228 ,  G09G2320/0238

摘要： The wall charge is appropriately adjusted in the initializing period, and occurrence of an abnormal discharge and an unlit cell is suppressed in the address period. Therefore, a plasma display device has a plasma display panel having a plurality of discharge cells including a display electrode pair that is formed of a scan electrode and a sustain electrode, and a scan electrode driving circuit. The scan electrode driving circuit disposes a plurality of subfields having an initializing period, an address period, and a sustain period in one field, generates a decreasing down-ramp voltage in the initializing period, and generates a negative scan pulse voltage and applies it to the scan electrodes in the address period. In the initializing period, after the generation of the down-ramp voltage, the scan electrode driving circuit generates negative pulse voltage lower than the minimum voltage of the down-ramp voltage and applies it to the scan electrodes.

摘要翻译： 在初始化期间适当地调整壁电荷，并且在寻址期间抑制异常放电和不点亮电池的发生。 因此，等离子体显示装置具有具有包括由扫描电极和维持电极形成的显示电极对的多个放电单元的等离子体显示面板和扫描电极驱动电路。 扫描电极驱动电路在一场中配置具有初始化周期，地址周期和维持期间的多个子场，在初始化期间产生下降斜坡电压，生成负扫描脉冲电压，并将其施加到 扫描电极在寻址周期。 在初始化期间，在产生下降斜坡电压之后，扫描电极驱动电路产生低于下降斜坡电压的最小电压的负脉冲电压并将其施加到扫描电极。

公开(公告)号：US20130002628A1

公开(公告)日：2013-01-03

申请号：US13583899

申请日：2011-02-25

申请人： Yuichi Sakai ,  Hidehiko Shoji ,  Naoyuki Tomioka ,  Yuya Shiozaki

发明人： Yuichi Sakai ,  Hidehiko Shoji ,  Naoyuki Tomioka ,  Yuya Shiozaki

IPC分类号： G06F3/038

CPC分类号： G09G3/2965 ,  G09G3/003 ,  G09G3/204 ,  G09G3/2927 ,  G09G3/294 ,  G09G2310/066

摘要： In a plasma display apparatus displaying a stereoscopic image, crosstalk is reduced and an address discharge is caused stably. For this purpose, in the plasma display apparatus displaying a stereoscopic image, each field has a plurality of subfields, each having a sustain period where an up-ramp waveform voltage is applied to the scan electrodes after all the sustain pulses are generated. The luminance weights of the respective subfields are set such that the subfield having the lightest luminance weight is generated first in each field, the subfield having the heaviest luminance weight is generated second, and the third subfield and those thereafter have luminance weights sequentially decreasing. The up-ramp waveform voltage in the sustain period of the first subfield in each field is generated so as to have a gradient gentler than that of the up-ramp waveform voltage in the sustain periods of the subfields generated second and thereafter.

摘要翻译： 在显示立体图像的等离子体显示装置中，减少串扰，稳定地产生寻址放电。 为此，在显示立体图像的等离子体显示装置中，每个场具有多个子场，每个场具有在产生所有维持脉冲之后向扫描电极施加上斜坡波形电压的维持周期。 各个子场的亮度权重被设定为使得在每个场中首先生成具有最轻亮度权重的子场，生成具有最重的亮度权重的子场，并且其后的第三子场和其后的亮度权重依次减小。 产生每个场中第一子场的维持周期中的上升斜坡波形电压，使得比第二及其后产生的子场的维持周期中的上升斜坡波形电压具有更缓慢的梯度。