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

IPC: G09G3/28 ,  G09G3/20 ,  G09G3/288 ,  G09G3/292 ,  G09G3/296

CPC classification number: G09G3/2927 ,  G09G3/296 ,  G09G2310/066

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

IPC: G09G3/288 ,  G09F9/00 ,  G09G3/20 ,  G09G3/291 ,  G09G3/292 ,  G09G3/296 ,  G09G3/298

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.

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

IPC: G09G3/292 ,  G09G3/20 ,  G09G3/288 ,  G09G3/291 ,  G09G3/298 ,  H04N5/66

CPC classification number: G09G3/296 ,  G09G3/2022 ,  G09G3/292 ,  G09G3/2927 ,  G09G3/294 ,  G09G2310/066 ,  G09G2320/0238 ,  G09G2320/041 ,  G09G2320/0626 ,  G09G2360/16

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

IPC: G09G3/288 ,  G09G3/293 ,  G09G3/296

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.