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：US20130113846A1

公开(公告)日：2013-05-09

申请号：US13703291

申请日：2011-07-21

申请人： Takahiko Origuchi ,  Kazuaki Sakata ,  Naoyuki Tomioka ,  Mitsuhiro Ishizuka

发明人： Takahiko Origuchi ,  Kazuaki Sakata ,  Naoyuki Tomioka ,  Mitsuhiro Ishizuka

IPC分类号： G09G3/28

CPC分类号： G09G3/28 ,  G09G3/291 ,  G09G3/292 ,  G09G3/294 ,  G09G3/2965 ,  G09G2310/066 ,  H04N13/341 ,  H04N13/398

摘要： High image display quality is achieved when a 3D image is displayed on a plasma display panel (10). For this purpose, a driver circuit includes sustain pulse generation circuits (60) and (80), control signal generation circuit (45) for generating a shutter opening/closing timing signal and a control signal for controlling sustain pulse generation circuits (60) and (80), all-cell light-emitting rate detecting circuit (46) for detecting the all-cell light-emitting rate in each subfield, and partial light-emitting rate detecting circuit (47) for detecting the partial light-emitting rate in each of a plurality of regions set in an image display region of plasma display panel (10) in each subfield. The driver circuit corrects the number of sustain pulses to be generated set based on the image signal and luminance weight in each of the subfields in response to the all-cell light-emitting rate and the partial light-emitting rate.

摘要翻译： 当在等离子体显示面板（10）上显示3D图像时，实现高图像显示质量。 为此，驱动电路包括维持脉冲产生电路（60）和（80），用于产生快门打开/关闭定时信号的控制信号产生电路（45）和用于控制维持脉冲发生电路（60）和 （80），用于检测每个子场中的全单元发光速率的全单元发光速率检测电路（46）以及用于检测每个子场中的全部单元发光率的部分发光率检测电路（47） 设置在各子场中的等离子体显示面板（10）的图像显示区域中的多个区域中的每一个。 驱动电路响应于全部单元发光率和部分发光率，根据每个子场中的图像信号和亮度权重校正要产生的要产生的维持脉冲数。

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：US07990344B2

公开(公告)日：2011-08-02

申请号：US11910345

申请日：2007-02-13

申请人： Toshiyuki Maeda ,  Shigeo Kigo ,  Yoshiki Tsujita ,  Naoyuki Tomioka ,  Takeru Yamashita ,  Kei Kitatani

发明人： Toshiyuki Maeda ,  Shigeo Kigo ,  Yoshiki Tsujita ,  Naoyuki Tomioka ,  Takeru Yamashita ,  Kei Kitatani

IPC分类号： G09G3/28

CPC分类号： G09G3/2927 ,  G09G2320/041

摘要： A plasma display panel driving method and a plasma display device estimate the highest temperature and the lowest temperature the panel can have, according to the temperature detected by the thermal sensor, and appropriately drives the panel, to improve the image display quality. Provided are at least three driving modes having different sub-field structures: a low-temperature driving mode, an ordinary-temperature driving mode, and a high-temperature driving mode. To drive the panel, estimates of the highest temperature and the lowest temperature the panel can have are made from the temperature detected by the thermal sensor, the temperature condition of the panel is determined from the estimated highest temperature or lowest temperature, and the driving mode is switched appropriately for the panel temperature condition.

摘要翻译： 等离子体显示面板驱动方法和等离子体显示装置根据热传感器检测到的温度来估计面板可以具有的最高温度和最低温度，并适当地驱动面板，以提高图像显示质量。 提供具有不同子场结构的至少三种驱动模式：低温驱动模式，普通温度驱动模式和高温驱动模式。 为了驱动面板，根据热传感器检测到的温度，可以估计面板最高温度和最低温度，面板的温度条件由估计的最高温度或最低温度确定，驱动模式 适当地切换面板温度条件。

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：US20090251389A1

公开(公告)日：2009-10-08

申请号：US11910345

申请日：2007-02-13

申请人： Toshiyuki Maeda ,  Shigeo Kigo ,  Yoshiki Tsujita ,  Naoyuki Tomioka ,  Takeru Yamashita ,  Kei Kitatani

发明人： Toshiyuki Maeda ,  Shigeo Kigo ,  Yoshiki Tsujita ,  Naoyuki Tomioka ,  Takeru Yamashita ,  Kei Kitatani

IPC分类号： G09G3/28

CPC分类号： G09G3/2927 ,  G09G2320/041

摘要： A plasma display panel driving method and a plasma display device estimate the highest temperature and the lowest temperature the panel can have, according to the temperature detected by the thermal sensor, and appropriately drives the panel, to improve the image display quality. Provided are at least three driving modes having different sub-field structures: a low-temperature driving mode, an ordinary-temperature driving mode, and a high-temperature driving mode. To drive the panel, estimates of the highest temperature and the lowest temperature the panel can have are made from the temperature detected by the thermal sensor, the temperature condition of the panel is determined from the estimated highest temperature or lowest temperature, and the driving mode is switched appropriately for the panel temperature condition.

摘要翻译： 等离子体显示面板驱动方法和等离子体显示装置根据热传感器检测到的温度来估计面板可以具有的最高温度和最低温度，并适当地驱动面板，以提高图像显示质量。 提供具有不同子场结构的至少三种驱动模式：低温驱动模式，普通温度驱动模式和高温驱动模式。 为了驱动面板，根据热传感器检测到的温度，可以估计面板最高温度和最低温度，面板的温度条件由估计的最高温度或最低温度确定，驱动模式 适当地切换面板温度条件。

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：US08384623B2

公开(公告)日：2013-02-26

申请号：US12743292

申请日：2008-11-12

申请人： Naoyuki Tomioka ,  Naoki Noguchi

发明人： Naoyuki Tomioka ,  Naoki Noguchi

IPC分类号： G09G3/28 ,  G09G5/10 ,  G09G3/10

CPC分类号： G09G3/2965 ,  G09G3/294

摘要： 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.

摘要翻译： 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。