公开(公告)号：EP1031131B1

公开(公告)日：2010-10-27

申请号：EP99943329.5

申请日：1999-09-14

申请人： Panasonic Corporation

发明人： MORITA, Tomoko ,  ISHIKAWA, Yuichi ,  KASAHARA, Mitsuhiro

IPC分类号： G09G3/28

CPC分类号： G09G3/2003 ,  G09G3/2029 ,  G09G3/288 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2330/045

摘要： This invention provides a display apparatus having high accuracy to control automatically power consumed for display operation suitable for emission-type display apparatus like a plasma display apparatus, electroluminescence display apparatus and a light emission diode display apparatus. The display apparatus comprises an emission unit (27), integrating circuits (11, 12, 13) for integrating input picture signals of R, G and B for each predetermined period to output average levels of R signal, G signal and B signal, respectively, multiplying circuits (14, 15, 16) for multiplying those average levels by their respective parameters KR, KG and KB, respectively, an adder (17) for obtaining a signal indicating expected consumption power on the emission unit by adding output signals from the multiplying circuits, a controller (18) for receiving the power prediction signal to output a control signal based on the received signal, and a brightness control circuit for controlling light emission amount per unit area according to the control signal.

公开(公告)号：EP1164568B1

公开(公告)日：2011-08-24

申请号：EP00977939.8

申请日：2000-11-24

申请人： Panasonic Corporation

发明人： MUTO, Yasuaki ,  WAKAHARA, Toshio ,  NIWA, Akio ,  HIGASHI, Takuma ,  MORITA, Tomoko ,  SEKIGUCHI, Yuji

IPC分类号： H04N7/01 ,  G09G5/00 ,  G09G3/20 ,  H04N3/27

CPC分类号： H04N7/0105 ,  H04N5/46 ,  H04N7/01 ,  H04N7/012 ,  H04N7/0135 ,  H04N21/440218

摘要： Video data on a field necessary for IP conversion and scanning line conversion is stored in a field memory section (7). Using the data stored in the field memory section a memory control section (2) performs vertical frequency conversion. An IP conversion section (3) performs IP conversion. A scanning line conversion section (4) performs scanning line conversion. A horizontal pixel conversion section(5) performs horizontal pixel conversion. A synchronization section (6) gives a predetermined clock, vertical and horizontal synchronizing signals to each block. Thus a single system performs vertical frequency conversion, IP conversion, scanning line conversion and horizontal pixel conversion.

公开(公告)号：EP1536643B1

公开(公告)日：2011-06-15

申请号：EP03746485.6

申请日：2003-04-14

申请人： Panasonic Corporation

发明人： KASAHARA, Mitsuhiro ,  DAIGI, Tomoaki ,  KAWAMURA, Hideaki ,  NAKAHIGASHI, Hideto ,  MORITA, Tomoko

IPC分类号： H04N7/01

CPC分类号： H04N7/012 ,  H04N5/144 ,  H04N7/0137

摘要： According to an interlace video signal which has been input, a plurality of interlace video signals corresponding to a plurality of continuous fields are generated by a first, a second, and a third one-field delay circuit. According to a plurality of interlace video signals, a first progressive video field signal is generated by a first progressive video generation circuit. According to a plurality of interlace video signals, a second progressive video field signal is generated by a second progressive video generation circuit. According to the first progressive video field signal and the second progressive video field signal, image vertical-direction motion amount information is calculated by a comparison circuit.