公开(公告)号：JP2012003095A

公开(公告)日：2012-01-05

申请号：JP2010138852

申请日：2010-06-18

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： YOSHIHAMA YUTAKA ,  INOUE SHINICHI

IPC: G09G3/20 ,  G09G3/288 ,  G09G3/291 ,  G09G3/292 ,  G09G3/294 ,  G09G3/296 ,  G09G3/298

Abstract: PROBLEM TO BE SOLVED: To extend a setting margin of drive voltage by arranging a setting range of drive voltage due to temperature state difference for each discharge cell and also to stably generate a write operation while omitting a forced initialization operation.SOLUTION: In a driving method of a plasma display panel, one field comprises a plurality of subfields having a write period, a sustain period to generate a sustain discharge by alternately applying a sustain pulse corresponding to a luminance weight to a scan electrode and a sustain electrode, and an erase period to generate an erase discharge by applying a predetermined voltage to the scan electrode and the sustain electrode. In the erase period, an erase discharge is selectively generated only in a discharge cell where a write discharge has been generated in the immediately preceding write period. In the sustain period of at least one subfield, a voltage is applied to the data electrode and the timing of finishing the application of voltage is changed depending on the temperature.

Abstract translation: 要解决的问题：通过布置由于每个放电单元的温度状态差引起的驱动电压的设定范围来延长驱动电压的设定余量，并且在省略强制初始化操作的同时稳定地产生写入操作。 解决方案：在等离子体显示面板的驱动方法中，一个场包括具有写入周期的多个子场，通过将对应于亮度权重的维持脉冲交替施加到扫描电极来产生维持放电的维持周期 和维持电极，以及通过向扫描电极和维持电极施加预定电压来产生擦除放电的擦除周期。 在擦除期间，仅在紧接在前的写入期间产生写入放电的放电单元中选择产生擦除放电。 在至少一个子场的维持期间，向数据电极施加电压，根据温度而改变施加电压的定时。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012003094A

公开(公告)日：2012-01-05

申请号：JP2010138851

申请日：2010-06-18

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： YOSHIHAMA YUTAKA ,  INOUE SHINICHI

IPC: G09G3/20 ,  G09G3/288 ,  G09G3/291 ,  G09G3/292 ,  G09G3/294 ,  G09G3/298

Abstract: PROBLEM TO BE SOLVED: To extend a setting margin by arranging a setting range of a drive voltage for each discharge cell and stably generate a write operation while omitting a forced initialization operation.SOLUTION: In a driving method of a plasma display panel, one field comprises a plurality of subfields having a write period to generate a write discharge, a sustain period to generate a sustain discharge by alternately applying a sustain pulse corresponding to a luminance weight to a scan electrode and a sustain electrode, and an erase period to generate an erase discharge by applying a predetermined voltage to the scan electrode and the sustain electrode. In the erase period, an erase discharge is selectively generated only in a discharge cell where a write discharge has been generated in the immediately preceding write period. In the sustain period of at least one subfield, a voltage is applied to the data electrode and the timings of finishing the application of voltage at red, green and blue, respectively are independently controlled.

Abstract translation: 要解决的问题：通过布置每个放电单元的驱动电压的设定范围来延长设定余量，并且在省略强制初始化操作的同时稳定地产生写入操作。 解决方案：在等离子体显示面板的驱动方法中，一个场包括具有写入周期以产生写入放电的多个子场，通过交替施加对应于亮度的维持脉冲来产生维持放电的维持周期 扫描电极和维持电极，以及通过向扫描电极和维持电极施加预定电压来产生擦除放电的擦除周期。 在擦除期间，仅在紧接在前的写入期间产生写入放电的放电单元中选择产生擦除放电。 在至少一个子场的维持期间，对数据电极施加电压，分别控制完成红，绿，蓝电压施加的定时。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012189768A

公开(公告)日：2012-10-04

申请号：JP2011052658

申请日：2011-03-10

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： YOSHIHAMA YUTAKA ,  MAEDA TOSHIYUKI

IPC: G09G3/28 ,  G09G3/20 ,  G09G3/288

Abstract: PROBLEM TO BE SOLVED: To reduce brightness of black displayed in a plasma display panel and to stably generate write discharge.SOLUTION: One field includes a first type sub-field where a sustain pulse is generated and is applied to a display electrode pair in a sustain period and a second type sub-field where a rising ramp voltage and a falling ramp voltage are generated and are applied to a scan electrode in a sustain period without generation of a sustain pulse. The second type sub-field is defined as a sub-field having the least brightness weight. Brightness around a plasma display device is compared with first illuminance. When an image to be displayed in a plasma display panel satisfies a prescribed condition, the sub-field having the least brightness weight is forcibly lit at a prescribed lighting rate in the case of the detected brightness being lower than the first illuminance, and the sub-field having the least brightness weight is forcibly lit at a lighting rate corresponding to the detected brightness in the case of the detected brightness being equal to or higher than the first illuminance.

Abstract translation: 要解决的问题：为了降低等离子体显示面板中显示的黑色亮度并稳定地产生写入放电。 解决方案：一场包括在维持周期中产生维持脉冲并施加到显示电极对的第一类型子场和上升斜坡电压和下降斜坡电压的第二类型子场 产生并在维持周期内施加到扫描电极，而不产生维持脉冲。 第二类型子场被定义为具有最小亮度权重的子场。 将等离子体显示装置周围的亮度与第一照度进行比较。 当待显示在等离子体显示面板中的图像满足规定条件时，在检测到的亮度低于第一照度的情况下，具有最小亮度权重的子场强制地以规定的照明率点亮， 在检测到的亮度等于或高于第一照度的情况下，以与检测到的亮度相对应的照明速率强制地点亮具有最小亮度权重的场。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012159557A

公开(公告)日：2012-08-23

申请号：JP2011017546

申请日：2011-01-31

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： MIZOGAMI KANAME ,  SAKAMOTO MITSUHIRO ,  YOSHIHAMA YUTAKA ,  OGAWA KENJI

IPC: G09G3/20 ,  G09G3/288 ,  G09G3/291 ,  G09G3/292 ,  G09G3/298 ,  H01J11/12 ,  H01J11/22 ,  H01J11/24 ,  H01J11/26 ,  H01J11/34 ,  H01J11/36 ,  H01J11/40

CPC classification number: H01J11/40 ,  G09G3/2022 ,  G09G3/2927 ,  G09G3/296 ,  G09G2320/0238 ,  H01J11/12

Abstract: PROBLEM TO BE SOLVED: To enhance image display quality by reducing the black luminance of an image displayed on a plasma display panel and then enhancing the contrast.SOLUTION: In an initialization period, one of a forcible initialization waveform, a selective initialization waveform and a non-initialization waveform is generated and applied to a scan electrode. One field comprises a special initialization sub-field for selectively generating the forcible initialization waveform and non-initialization waveform and a plurality of selective initialization sub-fields for generating only the selective initialization waveform. The forcible initialization waveform is applied to one scan electrode once for each field group. Scan electrodes on both sides of a scan electrode applied with the forcible initialization waveform in the special initialization sub-field are applied with the non-initialization waveform in at least two special initialization sub-fields which are the special initialization sub-field and the first special initialization sub-field right after the special initialization sub-field.

Abstract translation: 要解决的问题：通过降低等离子体显示面板上显示的图像的黑亮度，然后提高对比度来增强图像显示质量。 解决方案：在初始化期间，生成强制初始化波形，选择初始化波形和非初始化波形中的一个，并将其应用于扫描电极。 一个场包括用于选择性地产生强制初始化波形和非初始化波形的特殊初始化子场和用于仅产生选择性初始化波形的多个选择性初始化子场。 对于每个场组，强制初始化波形被施加到一个扫描电极一次。 在特殊初始化子场中施加有强制初始化波形的扫描电极两侧的扫描电极在至少两个特殊的初始化子场中被应用非初始化波形，这是特殊的初始化子场，第一个 特殊初始化子字段后特殊初始化子字段。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012058652A

公开(公告)日：2012-03-22

申请号：JP2010204157

申请日：2010-09-13

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： YOSHIHAMA YUTAKA ,  MAEDA TOSHIYUKI

IPC: G09G3/20 ,  G09G3/288 ,  G09G3/291 ,  G09G3/294 ,  G09G3/296 ,  G09G3/298

Abstract: PROBLEM TO BE SOLVED: To suppress black luminance of a plasma display device by performing a stable writing operation without using a forced initialization operation and to lower luminance of gradation being lower next to black.SOLUTION: When a voltage obtained by deducting a voltage of a data electrode from a low pressure side voltage of a sustaining pulse is a first voltage and a voltage obtained by deducting a low pressure side voltage of a writing pulse from a low pressure side voltage of a scanning pulse is a third voltage, a voltage obtained by deducting the third voltage from the first voltage is equal to or higher than a discharge start voltage having the data electrode as an anode and a scanning electrode as a cathode. One field includes a first kind of subfield for applying the sustaining pulse to the scanning electrode in a sustaining period and a second kind of subfield for applying a downward inclined waveform voltage to the scanning electrode after applying an upward inclined waveform voltage to the scanning electrode without applying the sustaining pulse to the scanning electrode in the sustaining period.

Abstract translation: 要解决的问题：通过在不使用强制初始化操作的情况下执行稳定的写入操作和降低黑色亮度的亮度来抑制等离子体显示装置的黑色亮度。 解决方案：当通过从维持脉冲的低压侧电压中扣除数据电极的电压而获得的电压是第一电压，并且通过从低压中扣除写入脉冲的低压侧电压而获得的电压 扫描脉冲的侧电压是第三电压，通过从第一电压中扣除第三电压而获得的电压等于或高于具有作为阳极的数据电极和作为阴极的扫描电极的放电开始电压。 一个场包括用于在维持周期中将扫描电极施加维持脉冲的第一种子场和向扫描电极施加向上倾斜的波形电压之后向扫描电极施加向下倾斜的波形电压的第二种子场，而没有 在维持期间将维持脉冲施加到扫描电极。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011085649A

公开(公告)日：2011-04-28

申请号：JP2009236379

申请日：2009-10-13

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： HASHIMOTO MAKI ,  YOSHIHAMA YUTAKA

IPC: G09G3/20 ,  G09G3/288 ,  G09G3/291 ,  G09G3/292 ,  G09G3/294 ,  G09G3/298

Abstract: PROBLEM TO BE SOLVED: To reduce black luminance of a display image, thereby enhancing a contrast of the display image, at the same time, displaying the gradation of a dark area in the display image more minutely while preventing the occurrence of an unlit cell and, as the result, improving the image display quality. SOLUTION: A predetermined cell initialization subfield having the initialization period during which a forced initialization waveform is applied to a prescribed discharge cell and a selective initialization waveform is applied to other discharge cells is disposed and, in a maintenance period of the subfield immediately preceding the predetermined cell initialization subfield, a maintenance pulse is not applied but one oblique voltage which rises from a base potential to a prescribed potential is applied to the discharge cell to which the forced initialization waveform is to be applied and the maintenance pulse is applied only one time to the discharge cell to which the selective initialization waveform is to be applied. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：为了减少显示图像的黑色亮度，从而增强显示图像的对比度，同时在显示图像中更暗地显示暗区域的灰度，同时防止发生 不点亮的单元格，结果提高了图像显示质量。 解决方案：将具有将强制初始化波形施加到规定放电单元的初始化期间和选择初始化波形的预定单元初始化子场布置在其他放电单元上，并且在子区域的维护期间 在预定的单元初始化子场之前，不施加维持脉冲，但是将从基电位上升到规定电位的一个斜电压被施加到要施加强制初始化波形的放电单元，并且仅施加维持脉冲 一次到要应用选择性初始化波形的放电单元。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011075616A

公开(公告)日：2011-04-14

申请号：JP2009223982

申请日：2009-09-29

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： YOSHIHAMA YUTAKA ,  SAKATA ICHIRO

IPC: G09G3/20 ,  G09G3/288 ,  G09G3/291 ,  G09G3/292 ,  G09G3/294 ,  G09G3/298

Abstract: PROBLEM TO BE SOLVED: To greatly improve contrast by omitting forced initialization operation while stably generating write-in operation.
SOLUTION: In an erasing period, erasing discharge is selectively generated only by a discharge cell generating just before write-in discharge. When a voltage in which a voltage applied to a data electrode is subtracted from a low voltage side voltage of a maintenance pulse is made a first voltage, the voltage in which a voltage applied to a data electrode is subtracted from a high voltage side voltage of a maintenance pulse is made a second voltage, the voltage in which a voltage applied to a data electrode is subtracted from a low voltage side voltage of a scanning pulse is made a third voltage, the voltage in which the third voltage is subtracted from the first voltage is a breakdown voltage or more in which a data electrode is an anode and a scanning electrode is a cathode, the voltage in which the third voltage is subtracted from the second voltage is less than the sum of breakdown voltage in which the data electrode is an anode and the scanning electrode is a cathode and breakdown voltage in which the data electrode is a cathode and the scanning electrode is an anode.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：通过在稳定地产生写入操作的同时省略强制初始化操作来大大提高对比度。 解决方案：在擦除期间，仅通过在写入放电之前产生的放电单元选择性地产生擦除放电。 当从维持脉冲的低电压侧电压中减去施加到数据电极的电压的电压成为第一电压时，从数据电极施加的电压的电压从第 将维持脉冲作为第二电压，从扫描脉冲的低电压侧电压中减去施加到数据电极的电压的电压为第三电压，从第一电压中减去第三电压的电压 电压是数据电极为阳极且扫描电极为阴极的击穿电压以下，从第二电压减去第三电压的电压小于数据电极的击穿电压的和 阳极和扫描电极是阴极，其中数据电极是阴极并且扫描电极是阳极的击穿电压。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011053282A

公开(公告)日：2011-03-17

申请号：JP2009199705

申请日：2009-08-31

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： YOSHIHAMA YUTAKA ,  OGAWA KENJI

IPC: G09G3/20 ,  G09G3/291 ,  G09G3/292

Abstract: PROBLEM TO BE SOLVED: To provide a method of driving a panel that generates stable write discharge to display an image having high display quality, without causing erroneous discharge in an initialization period.
SOLUTION: The method includes: in selection initialization operation, generating first discharge in which a sustaining electrode is a cathode and a scanning electrode is an anode; generating first discharge in which a scan electrode is a cathode and a data electrode is an anode; generating second discharge in which a maintenance electrode is a cathode and a scan electrode is an anode; and generating second discharge in which a scan electrode is a cathode and the data electrode is an anode. The method has a sub-field.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种驱动面板的方法，其产生稳定的写入放电以显示具有高显示质量的图像，而不会在初始化期间引起错误的放电。 解决方案：该方法包括：在选择初始化操作中，产生其中维持电极是阴极并且扫描电极是阳极的第一放电; 产生扫描电极是阴极并且数据电极是阳极的第一放电; 产生维持电极是阴极并且扫描电极是阳极的第二放电; 并产生第二放电，其中扫描电极是阴极，数据电极是阳极。 该方法有一个子字段。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010277008A

公开(公告)日：2010-12-09

申请号：JP2009131739

申请日：2009-06-01

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： YOSHIHAMA YUTAKA ,  FURUSAWA SEIJI

IPC: G09G3/20 ,  G09G3/28 ,  G09G3/288 ,  G09G3/291 ,  G09G3/292 ,  G09G3/294 ,  G09G3/296 ,  G09G3/298

Abstract: PROBLEM TO BE SOLVED: To reduce cost of a plasma display panel device, while realizing high luminance and power saving. SOLUTION: In a driving method of a plasma display panel having a plurality of display electrode pairs, each of which consists of a scanning electrode and a sustaining electrode and constitutes a display line, in a sustaining period, sustaining pulses having a first period and a second period are applied to the display electrode pairs, by using a sustain pulse generating circuit having a capacitor and an inductor. In the first period, electric power accumulated in the capacitor is supplied to an inter-electrode capacitance of the display electrode pair. In the second period, electric power accumulated in the inter-electrode capacitance of the display electrode pair is recovered to the capacitor. In the sustaining period of at least one subfield, the length of the first period of the sustaining pulse to be applied to the display electrode pair is set based on a maximum value of a display load for each display line and the number of high-load lines obtained by using the number of display lines with a display load of a predetermined value or more. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：为了降低等离子体显示面板装置的成本，同时实现高亮度和省电。 解决方案：在具有多个显示电极对的等离子体显示面板的驱动方法中，每个显示电极对由扫描电极和维持电极构成，并构成显示线，在维持期间，具有第一 周期和第二周期通过使用具有电容器和电感器的维持脉冲发生电路施加到显示电极对。 在第一期间，蓄积在电容器中的电力被提供给显示电极对的电极间电容。 在第二期间，累积在显示电极对的电极间电容中的电力被恢复到电容器。 在至少一个子场的维持期间，基于每个显示行的显示负载的最大值和高负载的数量来设定施加到显示电极对的维持脉冲的第一周期的长度 通过使用具有预定值以上的显示负载的显示行数来获得的行。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010249915A

公开(公告)日：2010-11-04

申请号：JP2009096828

申请日：2009-04-13

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： MAEDA TOSHIYUKI ,  YOSHIHAMA YUTAKA ,  TSUCHIDA SHINYA

IPC: G09G3/20 ,  G09G3/288 ,  G09G3/291 ,  G09G3/292 ,  G09G3/293 ,  G09G3/298

CPC classification number: G09G3/293 ,  G09G3/2927 ,  G09G2310/0218 ,  G09G2310/0267

Abstract: PROBLEM TO BE SOLVED: To display an image of high contrast by setting the number of times of performing a forced initialization operation to once per a plurality of fields by using a plasma display panel, and also to display a high quality image by performing a stable writing operation.
SOLUTION: During an initialization period, an operation for generating initialization discharge at a discharge cell by applying a predetermined voltage generating discharge regardless of presence of previous discharge to a scanning electrode is set as a forced initialization operation. During a writing period, when time when a scanning pulse is applied to the scanning electrode and a writing pulse is applied to a data electrode is set as writing time, each discharge cell performs a forced initialization operation in one of a plurality of field. In each discharge cell, writing time during the writing period of a field where no forced initialization operation is performed is set longer than that during the writing period of a field where a forced initialization operation is performed.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：通过使用等离子体显示面板，通过将强制初始化操作的次数设置为一次来显示高对比度的图像，并且还通过使用等离子体显示面板显示高质量图像 执行稳定的写入操作。 解决方案：在初始化期间，通过施加预定电压而产生放电而不管先前放电的存在如何，在放电单元产生初始化放电的操作被设置为强制初始化操作。 在写入期间，当将扫描脉冲施加到扫描电极的时间和向数据电极施加写入脉冲的时间被设置为写入时间时，每个放电单元在多个场中的一个场中执行强制初始化操作。 在每个放电单元中，在执行强制初始化操作的场的写入周期期间的写入时间被设定为比执行强制初始化操作的场的写入周期期间的写入时间长。 版权所有（C）2011，JPO＆INPIT