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公开(公告)号：EP2302613A4
公开(公告)日：2011-10-19
申请号：EP09804720
申请日：2009-08-04
Applicant: PANASONIC CORP
Inventor： TOMIOKA NAOYUKI , NOGUCHI NAOKI
CPC classification number: G09G3/2927 , G09G3/296 , G09G2310/066
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公开(公告)号：EP1986177A4
公开(公告)日：2009-09-02
申请号：EP07714057
申请日：2007-02-13
Applicant: PANASONIC CORP
Inventor： MAEDA TOSHIYUKI , KIGO SHIGEO , TSUJITA YOSHIKI , TOMIOKA NAOYUKI , YAMASHITA TAKERU , KITATANI KEI
CPC classification number: G09G3/2927 , G09G2320/041
Abstract: Provided is a plasma display panel driving method by which display qualities of an image is improved by estimating the highest possible temperature and the lowest possible temperature of a panel based on a temperature detected by a temperature sensor and by performing suitable drive. A plasma display device is also provided. The method has at least three drive modes having different sub-field configurations, i.e., low temperature drive mode, room temperature drive mode and high temperature drive mode. The highest possible temperature and the lowest possible temperature of the panel are estimated from the temperature detected by the temperature sensor, the panel temperature status is judged from the highest possible temperature or the lowest possible temperature, and the panel is driven by switching the mode to a suitable drive mode, corresponding to the temperature status of the panel.
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公开(公告)号：EP1990795A4
公开(公告)日：2009-12-16
申请号：EP07714940
申请日：2007-02-26
Applicant: PANASONIC CORP
Inventor： MAEDA TOSHIYUKI , KIGO SHIGEO , TSUJITA YOSHIKI , TOMIOKA NAOYUKI , YAMASHITA TAKERU , KITATANI KEI
CPC classification number: G09G3/296 , G09G3/2022 , G09G3/292 , G09G3/2927 , G09G3/294 , G09G2310/066 , G09G2320/0238 , G09G2320/041 , G09G2320/0626 , G09G2360/16
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4.发明公开
公开(公告)号：EP2413308A4
公开(公告)日：2012-08-29
申请号：EP10789240
申请日：2010-06-17
Applicant: PANASONIC CORP
Inventor： SHOJI HIDEHIKO , ORIGUCHI TAKAHIKO , TOMIOKA NAOYUKI
CPC classification number: G09G3/296 , G09G3/2022 , G09G3/293 , G09G2310/0213 , G09G2330/025 , G09G2340/16 , G09G2360/16
Abstract: 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.
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5.发明专利
公开(公告)号：JP2008309826A
公开(公告)日：2008-12-25
申请号：JP2007154776
申请日：2007-06-12
Applicant: Panasonic Corp , パナソニック株式会社
Inventor： NOGUCHI NAOKI , TOMIOKA NAOYUKI
Abstract: PROBLEM TO BE SOLVED: To enable even a plasma display panel, whose use time is long, to perform a stable image display without causing non-illumination.
SOLUTION: Disclosed is the driving method of a panel which makes a discharge cell emit light by applying sustain pulses to a display electrode pair comprising a scan electrode and a sustain electrode alternately in each of sustain periods of a plurality of sub-fields constituting one field, the sustain pulses including a first sustain pulse whose rise time is long, a second sustain pulse whose rise time is short, and a third sustain pulse whose rise time is shorter than the rise time of the first sustain pulse and longer than the rise time of the second sustain pulse. The second or third sustain pulse is applied right after the first sustain pulse, and the third or first sustain pulse is applied right after the third sustain pulse.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：即使使用时间长的等离子体显示面板也能够进行稳定的图像显示而不引起不照明。 解决方案：公开了通过在包括扫描电极和维持电极的显示电极对中交替地在多个子场的维持周期中交替地施加维持脉冲来使放电单元发光的面板的驱动方法 构成一个场，所述维持脉冲包括上升时间较长的第一维持脉冲，上升时间短的第二维持脉冲和上升时间短于第一维持脉冲的上升时间的第三维持脉冲，并且长于 第二维持脉冲的上升时间。 在第一维持脉冲之后施加第二或第三维持脉冲，并且在第三维持脉冲之后施加第三或第一维持脉冲。 版权所有（C）2009，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2010217222A
公开(公告)日：2010-09-30
申请号：JP2009060523
申请日：2009-03-13
Applicant: Panasonic Corp , パナソニック株式会社
Inventor： TOMIOKA NAOYUKI
Abstract: PROBLEM TO BE SOLVED: To display an image in which black luminance is suppressed and contrast is improved more, while generating stable write-in discharge without increasing drive voltage largely even on an a large screen panel. SOLUTION: There is provided a drive method of a panel including a plurality of discharge cells each having a scan electrode, a sustaining electrode and a data electrode. In the method, one field is constituted by using a plurality of sub-fields performing initialization operation causing a discharge cell to generate initialization discharge, write-in operation causing the discharge cell to generate write-in discharge, and sustaining operation causing the discharge cell to generate sustaining discharge; in at least one of the sub-fields, initialization operation is performed by applying down slope waveform voltage to at least one of the scan electrodes by being divided to a plurality of times, while the slope of down slope waveform voltage applied after temporally is set more gently than a slope of down slope waveform voltage applied before temporally. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：即使在大屏幕面板上，也可以在不增加驱动电压的同时产生稳定的写入放电的同时，显示抑制黑色亮度和对比度的图像。 解决方案：提供一种面板的驱动方法，其包括多个放电单元，每个放电单元均具有扫描电极，维持电极和数据电极。 在该方法中，通过使用进行使放电单元产生初始化放电的初始化动作的多个子场，使得放电单元产生写入放电的写入动作以及导致放电单元的维持动作，构成一个场 产生持续放电; 在至少一个子场中，通过将多个扫描电极中的至少一个扫描电压施加到至少一个扫描电极，同时设置在时间上施加的下降斜率波形电压的斜率来执行初始化操作 比在时间上施加的下坡波形电压的斜率更缓慢。 版权所有（C）2010，JPO＆INPIT
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7.发明专利
公开(公告)号：JP2009069560A
公开(公告)日：2009-04-02
申请号：JP2007238788
申请日：2007-09-14
Applicant: Panasonic Corp , パナソニック株式会社
Inventor： NOGUCHI NAOKI , SHOJI HIDEHIKO , TOMIOKA NAOYUKI , ORIGUCHI TAKAHIKO
Abstract: PROBLEM TO BE SOLVED: To improve the display quality of images by stably generating maintenance discharge while reducing power consumption. SOLUTION: A plasma display apparatus includes an all-cell lighting rate detection circuit for detecting the rate of discharge cells to be turned on to all discharge cells in a display area of a plasma display panel as an all-cell lighting rate in each sub-field and a partial lighting rate detection circuit for detecting the rate of discharge cells to be turned on to discharge cells in each area as a partial lighting rate in each area and in each sub-field, by dividing the display area of the plasma display panel into a plurality of areas. In a maintenance period, at least one of a rising period for driving a power recovery circuit in order to raise a maintenance pulse and a falling period for driving the power recovery circuit in order to fall the maintenance pulse is controlled in accordance with the all-cell lighting rate outputted from the all-cell lighting rate detection circuit and the partial lighting rate output from the partial lighting rate detection circuit. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：通过在降低功耗的同时稳定地产生维护放电来提高图像的显示质量。 解决方案：等离子体显示装置包括全电池点亮率检测电路，用于检测等离子体显示面板的显示区域中的所有放电单元导通的放电单元的速率，作为全电池照明率 每个子场和部分点亮率检测电路，用于检测每个区域中和每个子场中的每个区域中的单元的放电单元的放电单元的放电单元的速率，通过将每个子场中的显示区域 等离子体显示面板分成多个区域。 在维护期间，为了提高维持脉冲的驱动电源恢复电路的上升期间和用于驱动电源恢复电路的下降周期中的至少一个，以便降低维护脉冲， 从全频点亮率检测电路输出的单元照明率和从部分点亮率检测电路输出的部分点亮率。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2009069240A
公开(公告)日：2009-04-02
申请号：JP2007234932
申请日：2007-09-11
Applicant: Panasonic Corp , パナソニック株式会社
Inventor： TOMIOKA NAOYUKI
Abstract: PROBLEM TO BE SOLVED: To shorten the length of a write period with image degradation suppressed, even in the case of a plasma display panel with a large number of scan electrodes. SOLUTION: A plurality of sub-fields each of which has a write period when a scan pulse is applied to scan electrodes and a write pulse is applied to data electrodes to perform a write operation by discharge cells and a sustain period when the number of sustain pulses based on a brightness weight are applied to scan electrodes and sustain electrodes alternately to cause discharge cells to emit light are arranged to constitute one field period. In the write period, a normal write operation of applying the scan pulse to scan electrodes one by one or a simultaneous write operation of simultaneously applying the scan pulse to every two scan electrodes is performed. The write operation in a sub-field is set to the normal write operation or the simultaneous write operation on the basis of a temperature detected by a temperature sensor disposed in a device and a brightness weight. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：即使在具有大量扫描电极的等离子体显示面板的情况下，为了缩短抑制图像劣化的写入周期的长度。 解决方案：当扫描脉冲被施加到扫描电极时，具有写入周期的多个子场，并且写入脉冲被施加到数据电极以执行放电单元的写入操作和维持周期 基于亮度权重的维持脉冲数被交替施加到扫描电极和维持电极以使放电单元发光以构成一个场周期。 在写入期间，执行将扫描脉冲逐一施加到扫描电极的正常写入操作或同时向每两个扫描电极施加扫描脉冲的同时写入操作。 基于由设置在设备中的温度传感器检测的温度和亮度权重，将子场中的写入操作设置为正常写入操作或同时写入操作。 版权所有（C）2009，JPO＆INPIT
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9.发明专利Method of driving plasma display apparatus, plasma display apparatus and plasma display system 审中-公开驱动等离子体显示装置的方法，等离子显示装置和等离子体显示系统
公开(公告)号：JP2012013966A
公开(公告)日：2012-01-19
申请号：JP2010150719
申请日：2010-07-01
Applicant: Panasonic Corp , パナソニック株式会社
Inventor： ORIGUCHI TAKAHIKO , YOSHIHAMA YUTAKA , SAWA KAZUKI , TOMIOKA NAOYUKI , SHIOZAKI HIRONARI
Abstract: PROBLEM TO BE SOLVED: To provide a drive method of panel and a plasma display apparatus capable of satisfying requirements for higher resolution, larger scale screen and stable writing discharge.SOLUTION: The plasma display apparatus comprises: a plasma display panel 10 that has plural discharge cells including a display electrode pair constituted of a scanning electrode and a sustain electrode and data electrode; and a driver circuit that forms one field including plural sub-fields, which has a write period for applying a scanning pulse to a scanning electrode and a write pulse to a data electrode, and a sustain period for applying sustain pulses of the number corresponding to a luminance weight to the display electrode pair, and drives the plasma display panel. A data load detection circuit 37 detects a voltage drop due to a load write pulse from image data, and a data electrode driver circuit 42 controls the width of the write pulse in accordance with the voltage drop.
Abstract translation: 要解决的问题：提供一种面板和等离子体显示装置的驱动方法，其能够满足更高分辨率，大尺度屏幕和稳定写入放电的要求。 解决方案：等离子体显示装置包括：等离子体显示面板10，其具有包括由扫描电极和维持电极以及数据电极构成的显示电极对的多个放电单元; 以及驱动电路，其形成包括多个子场的一个场，该多个子场具有将扫描脉冲施加到扫描电极的写入周期和对数据电极的写入脉冲，以及维持周期，用于施加对应于 对显示电极对的亮度权重，并驱动等离子体显示面板。 数据负载检测电路37从图像数据检测由于负载写入脉冲引起的电压降，数据电极驱动电路42根据电压降控制写入脉冲的宽度。 版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2011022257A
公开(公告)日：2011-02-03
申请号：JP2009165630
申请日：2009-07-14
Applicant: Panasonic Corp , パナソニック株式会社
Inventor： TOMIOKA NAOYUKI , ORIGUCHI TAKAHIKO , SAKAI YUICHI
Abstract: PROBLEM TO BE SOLVED: To improve image display quality by suppressing the occurrence of abnormal electric discharging during a writing period even in a panel having a large screen, high luminance, and high definition.
SOLUTION: When driving the plasma display panel provided with a plurality of discharge cells each having a display electrode pair including a scanning electrode and a sustaining electrode, in three discharge cells arrayed in a direction where the display electrode pair extends, in a current subfield, a center discharge cell is unlit, and two discharge cells on both sides of the center discharge cell are lit. In a last subfield before the current subfield, the center discharge cell is unlit. In a subfield before last before the current subfield, when the center discharge cell is lit, one of the two discharge cells is changed from lighting to non-lighting.
COPYRIGHT: (C)2011,JPO&INPITAbstract translation: 解决的问题：即使在具有大屏幕，高亮度和高清晰度的面板中，通过抑制写入期间异常放电的发生来提高图像显示质量。 解决方案：当驱动具有多个放电单元的等离子体显示面板时，每个放电单元具有包括扫描电极和维持电极的显示电极对，在沿显示电极对延伸的方向排列的三个放电单元中， 当前的子场，中心放电单元不亮，中心放电单元两侧的两个放电单元点亮。 在当前子场之前的最后一个子场中，中心放电单元不亮。 在当前子场之前的子场中，当中心放电单元点亮时，两个放电单元之一从照明变为非点亮。 版权所有（C）2011，JPO＆INPIT
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