公开(公告)号：EP2242037A4

公开(公告)日：2011-05-18

申请号：EP10735632

申请日：2010-01-27

Applicant: PANASONIC CORP

Inventor： TSUJITA YOSHIKI ,  TAKEDA MINORU ,  FURUSAWA SEIJI ,  SASAKI KENJI

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

CPC classification number: G09G3/2965 ,  G09G3/2022 ,  G09G3/2927 ,  G09G3/2946 ,  G09G2310/066 ,  G09G2320/0228 ,  G09G2330/025 ,  G09G2360/16 ,  H01J11/12 ,  H01J11/24 ,  H01J2211/245 ,  H01J2211/363 ,  H01J2211/38

Abstract: The plasma display device has a sustain pulse generating circuit for generating sustain pulses in a sustain period. The sustain pulse generating circuit generates at least two kinds of sustain pulses of different rising gradients in the sustain period, generates a predetermined number of sustain pulse whose rising gradient becomes steeper to the latter half in at least one-side electrode in the sustain period after first two sustain pulses and except an erasing pulse, and continuously generates the sustain pulses while the rising gradient of the sustain pulses is varied in response to the light emitting rate of the plasma display panel in the sustain period.

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：JP2010175771A

公开(公告)日：2010-08-12

申请号：JP2009017576

申请日：2009-01-29

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

Inventor： FURUSAWA SEIJI ,  TAKEDA MINORU ,  SASAKI KENJI ,  YOSHIHAMA YUTAKA

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

Abstract: PROBLEM TO BE SOLVED: To perform high quality image display by generating stable sustaining discharge even in a high-definition plasma display panel. SOLUTION: In this plasma display device, writing discharge is generated selectively by discharge cells in a writing period of a subfield having the writing period and a sustaining period, sustain pulses by the number corresponding to the luminance weight are applied to a display electrode in the sustaining period, and sustaining discharge is generated by the discharge cells made to generate the writing discharge. The rising and falling of the sustain pulses are performed by LC resonance between the inter-electrode capacitance and inductor of the plasma display panel. In the sustaining period of at least one subfield, a first sustain pulse having at least a predetermined rising time and a second sustain pulse having a rising time shorter than the predetermined rising time are applied. The plasma display panel is driven so that the second sustain pulse is included in the period from the start of the sustaining period to the midway of the sustaining period. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：即使在高清晰度等离子体显示面板中也能产生稳定的维持放电来进行高质量的图像显示。 解决方案：在该等离子体显示装置中，在具有写入周期和维持周期的子场的写入周期中，通过放电单元选择性地产生写入放电，与亮度权重对应的维持脉冲施加到显示器 电极，并且通过使得产生写入放电的放电单元产生持续放电。 维持脉冲的上升和下降通过等离子体显示面板的电极间电容和电感器之间的LC谐振来执行。 在至少一个子场的维持期间，施加具有至少预定上升时间的第一维持脉冲和具有比预定上升时间短的上升时间的第二维持脉冲。 驱动等离子体显示面板，使得第二维持脉冲包括在从维持周期的开始到维持周期的中间的期间。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009192657A

公开(公告)日：2009-08-27

申请号：JP2008031380

申请日：2008-02-13

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

Inventor： FURUSAWA SEIJI ,  YOSHIHAMA YUTAKA

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

Abstract: PROBLEM TO BE SOLVED: To provide a plasma display device capable of performing high-quality image display by generating stable sustaining discharge even in a high-definition panel.
SOLUTION: The plasma display device drives a panel by providing a writing period that writing discharge is generated selectively by discharge cells, and a sustaining period that sustaining discharge is generated by applying sustain pulses by the number of times in proportion to luminance weight to a display electrode by the discharge cells made to generate the writing discharge. As to several sustain pulses to be applied to the display electrodes at the latter half of the sustaining period, that is, the sustaining period in a subfield just before a subfield having small luminance weight and a small number of sustain pulses, which is a subfield having large luminance weight, a period when rising time of the sustain pulse applied to one of the display electrodes overlaps on falling time of the sustain pulse applied to the other of the display electrodes is set so that midpoint potential of a capacitor of a power recovery part may not be lowered.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供即使在高清晰度面板中也能产生稳定的维持放电而能够进行高品质图像显示的等离子体显示装置。 解决方案：等离子体显示装置通过提供写入周期来驱动面板，该写入周期通过放电单元选择性地产生写入放电，并且通过将维持脉冲施加与亮度重量成比例的次数来产生维持放电的维持周期 通过用于产生写入放电的放电单元向显示电极施加。 对于在维持周期的后半部分施加到显示电极的几个维持脉冲，即刚好在具有小亮度权重的子场和作为子场的少量维持脉冲之前的子场中的维持周期 具有大的亮度权重，设置施加到一个显示电极的维持脉冲的上升时间与施加到另一个显示电极的维持脉冲的下降时间重叠的周期，使得功率恢复电容器的中点电位 部分可能不会降低。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2010175770A

公开(公告)日：2010-08-12

申请号：JP2009017575

申请日：2009-01-29

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

Inventor： SASAKI KENJI ,  TAKEDA MINORU ,  FURUSAWA SEIJI ,  IBARAKI HIROSHI

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

Abstract: PROBLEM TO BE SOLVED: To improve display quality and luminous efficiency in a plasma display panel.
SOLUTION: A plasma display device has a plasma display panel which is provided with a plurality of discharge cells having a display electrode pair composed of a scan electrode and a sustain electrode, and a sustaining pulse generating circuit which applies a sustaining pulse to each of the display electrode pair using a power recovery circuit which causes rising or falling edge of the sustaining pulse by resonating inter-electrode capacitance and inductor of the display electrode pair and a clamp circuit which clamps a voltage of the sustaining pulse to a power source voltage or base potential. The sustaining pulse generating circuit generates sustaining pulses, wherein a time point of starting of a rising edge of the sustaining pulse applied to one electrode of the display electrode pair and a time point of starting of falling edge of the sustaining pulse applied to another electrode coincide each other, and the time of rising of the sustaining pulse applied to one electrode of the display electrode pair, and the time of the falling of edge of the sustaining pulse applied to another electrode are different.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提高等离子体显示面板的显示质量和发光效率。 解决方案：等离子体显示装置具有等离子体显示面板，该等离子体显示面板设置有具有由扫描电极和维持电极构成的显示电极对的多个放电单元，以及维持脉冲发生电路，其将维持脉冲施加到 每个显示电极对使用功率恢复电路，其通过使显示电极对的电极间电容和电感器谐振而产生维持脉冲的上升沿或下降沿;钳位电路将维持脉冲的电压钳位到电源 电压或基极电位。 维持脉冲发生电路产生维持脉冲，其中施加到显示电极对的一个电极的维持脉冲的上升沿开始的时间点和施加到另一个电极的维持脉冲的下降沿开始的时间点重合 并且施加到显示电极对的一个电极的维持脉冲的上升时间和施加到另一个电极的维持脉冲的边沿下降的时间是不同的。 版权所有（C）2010，JPO＆INPIT