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公开(公告)号：EP1990794A4
公开(公告)日：2012-01-25
申请号：EP07714905
申请日：2007-02-26
Applicant: PANASONIC CORP
Inventor： MIMA KUNIHIRO , MAKINO KOSUKE , KAWASE TOORU
CPC classification number: G09G3/2029 , G09G3/2922 , G09G3/2927 , G09G3/294 , G09G3/2942 , G09G3/296 , G09G3/298 , G09G2310/0267 , G09G2320/0238
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公开(公告)号：JP2009288470A
公开(公告)日：2009-12-10
申请号：JP2008140349
申请日：2008-05-29
Applicant: Panasonic Corp , パナソニック株式会社
Inventor： UEDA MITSUO , IBARAKI HIROSHI , MIMA KUNIHIRO
Abstract: PROBLEM TO BE SOLVED: To reduce variation in brightness among discharge cells by synchronizing timing of occurrences of discharge among discharge cells with one another and to improve the display quality of an image by improving efficiency by reducing the power not contributing to discharge.
SOLUTION: A plasma display device includes a sustain pulse generation circuit which generates a sustain pulse to a plurality of scan electrodes and sustain electrodes. The sustain pulse generation circuit generates at least three kinds of sustain pulses of a first sustain pulse having a reference gradient, a second sustain pulse rising more rapidly than the first sustain pulse, and a third sustain pulse rising more slowly than the first sustain pulse, by switching. In at least a part of a sustain period of a one-field period, the second sustain pulse is applied after application of the third sustain pulse.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：通过使放电单元之间的放电发生的定时同步来减少放电单元之间的亮度变化，并且通过降低不对放电有贡献的功率来提高效率来提高图像的显示质量。 解决方案：等离子体显示装置包括维持脉冲产生电路，其向多个扫描电极和维持电极产生维持脉冲。 维持脉冲产生电路产生具有基准梯度的第一维持脉冲和比第一维持脉冲更快地上升的第二维持脉冲和比第一维持脉冲上升得更慢的第三维持脉冲的至少三种维持脉冲， 通过切换。 在单场周期的维持周期的至少一部分中，在施加第三维持脉冲之后施加第二维持脉冲。 版权所有（C）2010，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2009282417A
公开(公告)日：2009-12-03
申请号：JP2008136229
申请日：2008-05-26
Applicant: Panasonic Corp , パナソニック株式会社
Inventor： SASAKI KENJI , MIMA KUNIHIRO
Abstract: PROBLEM TO BE SOLVED: To perform stable maintenance discharge even when a temperature of a panel is high, to reduce ineffective electric power as compared with that in the prior art, and to enhance a light emitting efficiency. SOLUTION: This driving method is provided with: a plasma display panel provided with a plurality of discharge cells having a display electrode pair; a sustain pulse generating circuit having a power recovery circuit for resonating an inter-electrode capacitance and inductance of the display electrode pair to cause a rise or fall of the sustain pulse, and a clamp circuit for clamping a voltage of the sustain pulse in a prescribed voltage, and for generating the sustain pulses of the frequency of brightness weight, to be applied to each of the display electrode pair in a maintenance period of a plurality of subfields provided in one field period; and a panel temperature determination part for detecting a temperature state of the plasma display panel. The sustain pulse generating circuit makes a rise period of the sustain pulse shorter than when an ambient temperature or a low temperature is determined, when the panel temperature determination part decides a high temperature. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：即使在面板的温度高的情况下也能够进行稳定的维护放电，与现有技术相比降低无效的电力，并提高发光效率。 解决方案：该驱动方法具有：具有多个具有显示电极对的放电单元的等离子体显示面板; 维持脉冲发生电路，具有用于使显示电极对的电极间电容和电感谐振以产生维持脉冲的上升或下降的功率恢复电路;以及钳位电路，用于将维持脉冲的电压钳位在规定的 在一个场周期中设置的多个子场的维护期间，对显示电极对中的每一个施加亮度权重频率的维持脉冲; 以及用于检测等离子体显示面板的温度状态的面板温度判定部。 当面板温度确定部分决定高温时，维持脉冲发生电路使得维持脉冲的上升周期比当确定环境温度或低温时更短。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009192654A
公开(公告)日：2009-08-27
申请号：JP2008031365
申请日：2008-02-13
Applicant: Panasonic Corp , パナソニック株式会社
Inventor： MIMA KUNIHIRO , TAKEDA MINORU , AKAMATSU KEIJI
Abstract: PROBLEM TO BE SOLVED: To provide a plasma display device capable of stably generating writing discharge and having good image display quality.
SOLUTION: The plasma display device includes a driving means for driving a panel by constituting one field of a plurality of subfields, and providing a writing period for selecting a discharge cell made to emit light and a sustaining period for generating sustaining discharge by alternately applying sustain pulses by the number of times in accordance with luminance weight to a display electrode of the selected discharge cell in the subfield. In the sustaining period of at least one subfield, a first sustain pulse and a second sustain pulse whose rising recovery period is longer than that of the first sustain pulse and whose falling recovery period is shorter than that of the first sustain pulse are provided as the sustain pulses, and the second sustain pulses are applied to the display electrode in a latter part of the sustaining period.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 解决的问题：提供能够稳定地产生写入放电并具有良好的图像显示质量的等离子体显示装置。 解决方案：等离子体显示装置包括：驱动装置，用于通过构成多个子场的一个场来驱动面板，并且提供用于选择被制成发光的放电单元的写入周期和用于产生维持放电的维持周期 根据亮度权重将维持脉冲交替地施加到所述子场中所选择的放电单元的显示电极。 在至少一个子场的维持期间，提供第一维持脉冲和第二维持脉冲，其上升恢复周期长于第一维持脉冲的恢复周期，并且其下降恢复周期短于第一维持脉冲的恢复周期 维持脉冲，并且在维持周期的后半部分中将第二维持脉冲施加到显示电极。 版权所有（C）2009，JPO＆INPIT
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5.发明专利
公开(公告)号：JP2013019983A
公开(公告)日：2013-01-31
申请号：JP2011151564
申请日：2011-07-08
Applicant: Panasonic Corp , パナソニック株式会社
Inventor： TAGUCHI MITSUTAKA , MIMA KUNIHIRO , SAWADA GOKI
Abstract: PROBLEM TO BE SOLVED: To allow a discharge cell that should emit light to emit light even after a plasma display panel is left in a non-emission state for a long period.SOLUTION: In a panel driving method, one field is provided with a plurality of sub-fields each having an initialization period Ti in which an inclined waveform voltage is applied to a scanning electrode 22 to generate an initialization discharge, a writing period Tw in which a scanning pulse is applied to the scanning electrode 22 and a writing pulse based on an image signal is applied to a data electrode 32 to generate a writing discharge, and a sustaining period Ts in which sustaining pulses are applied alternately to the scanning electrode 22 and a sustaining electrode 23 to generate sustain discharges. When terminating driving of the panel, a grounding potential is applied to the scanning electrode 22, and a voltage Vs being the same as the sustaining pulse is applied to the sustaining electrode 23 to generate a final discharge.
Abstract translation: 要解决的问题：即使在等离子体显示面板长时间处于非发光状态之后，也能够使发光的放电单元发光。 解决方案：在面板驱动方法中，一个场具有多个子场，每个子场具有初始化周期Ti，其中倾斜波形电压施加到扫描电极22以产生初始化放电，写入周期 Tw将扫描脉冲施加到扫描电极22，并且基于图像信号的写入脉冲被施加到数据电极32以产生写入放电，并且将维持脉冲交替施加到扫描的维持周期Ts 电极22和维持电极23，以产生维持放电。 当终止面板的驱动时，对扫描电极22施加接地电位，并且将与维持脉冲相同的电压Vs施加到维持电极23以产生最终放电。 版权所有（C）2013，JPO＆INPIT
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6.发明专利
公开(公告)号：JP2013019982A
公开(公告)日：2013-01-31
申请号：JP2011151563
申请日：2011-07-08
Applicant: Panasonic Corp , パナソニック株式会社
Inventor： TAGUCHI MITSUTAKA , MIMA KUNIHIRO , SAWADA GOKI
Abstract: PROBLEM TO BE SOLVED: To allow a discharge cell that should emit light to emit light even after a panel is left in a non-emission state for a long period.SOLUTION: In a panel driving method, one field is provided with a plurality of sub-fields each having an initialization period in which an inclined waveform voltage is applied to a scanning electrode, a writing period in which a scanning pulse is applied to the scanning electrode and a writing pulse is applied to a data electrode, and a sustaining period in which sustaining pulses are applied alternately to the scanning electrode and a sustaining electrode. After the last sub-field arranged at the last in one field, a voltage Vs being the same as the sustaining pulse is applied to the sustaining electrode, a voltage Vd being the same as the writing pulse is applied to the data electrode, and a declining waveform voltage that declines to the voltage Va being the same as the scanning pulse is applied to the scanning electrode.
Abstract translation: 要解决的问题：即使在面板长时间处于非发射状态之后，也允许发光的放电单元发光。 解决方案：在面板驱动方法中，一个场具有多个子场，每个子场具有向扫描电极施加倾斜波形电压的初始化周期，施加扫描脉冲的写入周期 并且向数据电极施加写入脉冲，并且将维持脉冲交替施加到扫描电极和维持电极的维持周期。 在一个场中最后一个子场配置后，将与维持脉冲相同的电压Vs施加到维持电极，将与写入脉冲相同的电压Vd施加到数据电极，并且 衰减的波形电压下降到与扫描脉冲施加到扫描电极相同的电压Va。 版权所有（C）2013，JPO＆INPIT
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公开(公告)号：JP2009168978A
公开(公告)日：2009-07-30
申请号：JP2008005339
申请日：2008-01-15
Applicant: Panasonic Corp , パナソニック株式会社
Inventor： MATSUMOTO TATSUYA , MIMA KUNIHIRO
Abstract: PROBLEM TO BE SOLVED: To secure a drive margin for false lighting of a plasma display panel and a drive margin for defective writing.
SOLUTION: One field period is constructed of a plurality of subfields each having an initialization period, a writing period, and a maintenance period, and in the initialization periods of a plurality of subfields, whole cell initializing operation or selective initializing operation is carried out. After the initialization period of at least one subfield among a plurality of subfields, an abnormal electric charge elimination period for applying a rectangular waveform voltage to a scanning electrode is arranged, and based on an APL of an image signal to be displayed, the abnormal electric charge elimination period is controlled. The subfield wherein the abnormal electric charge elimination period is arranged when the APL is lower than a predetermined threshold value is positioned anteriorly to the subfield wherein the abnormal electric charge elimination period is arranged when the APL is the predetermined threshold value or more.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：确保等离子体显示面板的虚假照明的驱动余量和写入不良的驱动余量。 解决方案：一个场周期由多个子场构成，每个子场具有初始化周期，写入周期和维护周期，并且在多个子场的初始化周期中，全单元初始化操作或选择性初始化操作是 执行。 在多个子场中的至少一个子场的初始化期间之后，配置用于向扫描电极施加矩形波形电压的异常电荷消除期间，并且基于要显示的图像信号的APL，异常电 电荷消除期被控制。 当APL低于预定阈值时排列的异常电荷消除期间的子场位于APL处于预定阈值以上时排列异常电荷消除期间的子场的前方。 版权所有（C）2009，JPO＆INPIT
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