公开(公告)号：EP1988531A4

公开(公告)日：2011-09-21

申请号：EP07714544

申请日：2007-02-20

Applicant: PANASONIC CORP

Inventor： TAKEDA MINORU ,  KIGO SHIGEO ,  KAWASE TOORU ,  TANIGUCHI HIRONARI

IPC: G09G3/291 ,  G09G3/28 ,  G09G3/288 ,  G09G3/292 ,  G09G3/298

CPC classification number: G09G3/2927 ,  G09G3/2022 ,  G09G2320/0238 ,  G09G2320/103 ,  G09G2360/16

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：EP2131346A4

公开(公告)日：2011-03-16

申请号：EP08738542

申请日：2008-04-10

Applicant: PANASONIC CORP

Inventor： TAKEDA MINORU ,  OGAWA KENJI ,  AKAMATSU KEIJI

IPC: G09G3/288 ,  G09G3/20 ,  G09G3/291 ,  G09G3/293 ,  G09G3/294 ,  G09G3/298

CPC classification number: G09G3/2029 ,  G09G3/2927 ,  G09G2310/065 ,  G09G2310/066

公开(公告)号：EP1903550A4

公开(公告)日：2010-08-11

申请号：EP07714055

申请日：2007-02-13

Applicant: PANASONIC CORP

Inventor： TAKEDA MINORU ,  KIGO SHIGEO ,  MUTOU YASUAKI

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

CPC classification number: G09G3/2927 ,  G09G3/2092 ,  G09G3/296 ,  G09G3/298 ,  G09G2310/0267 ,  G09G2310/062 ,  G09G2310/063 ,  G09G2320/0238 ,  G09G2330/021

Abstract: One field is formed of a plurality of sub-fields, and each one of the sub-fields includes an initializing period, addressing period, and sustained period. The sub-field is one of an entire-cell initialization sub-field or a selective-cell initialization sub-field. When the entire initialization sub-field is switched to the selective one or vice versa, an initializing voltage which generates initializing discharge in the entire initialization sub-field is controlled. This control allows varying the number of the entire initializations and stabilizing address discharge in a plasma display panel, and at the same time, making the black luminance inconspicuous for improving the picture quality.

公开(公告)号：EP2533231A4

公开(公告)日：2013-01-23

申请号：EP11739569

申请日：2011-02-03

Applicant: PANASONIC CORP

Inventor： ORIGUCHI TAKAHIKO ,  YAMAMOTO HIROKO ,  TAKEDA MINORU

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

CPC classification number: G09G3/204 ,  G09G3/2037 ,  G09G3/2927 ,  G09G2320/0247 ,  G09G2320/0271

公开(公告)号：EP2012297A4

公开(公告)日：2011-02-16

申请号：EP08738543

申请日：2008-04-10

Applicant: PANASONIC CORP

Inventor： AKAMATSU KEIJI ,  TAKEDA MINORU ,  OGAWA KENJI ,  IBARAKI HIROSHI

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

CPC classification number: G09G3/2927 ,  G09G3/2029 ,  G09G2310/0218 ,  G09G2310/065 ,  G09G2310/066

Abstract: In a driving method of a panel, one field period is formed by arranging a plurality of subfields that have an initializing period for causing initializing discharge in a discharge cell, an address period for selectively causing address discharge in the discharge cell, and a sustain period for causing as many sustain discharges as the number corresponding to luminance weight in the discharge cell. One field period is formed by arranging a plurality of subfield groups having a plurality of subfields whose luminance weights monotonically increase. A holding period when discharge is not caused is disposed before the head subfield belonging to at least one subfield group of the plurality of subfield groups. In the initializing period of the head subfield belonging to at least one subfield group, an initializing operation of causing initializing discharge is performed in the discharge cell where the sustain discharge has been performed in the sustain period of the immediately preceding subfield.