JPH10124003A - Multi-screen plasma display device - Google Patents

Multi-screen plasma display device

Info

Publication number
JPH10124003A
JPH10124003A JP8275741A JP27574196A JPH10124003A JP H10124003 A JPH10124003 A JP H10124003A JP 8275741 A JP8275741 A JP 8275741A JP 27574196 A JP27574196 A JP 27574196A JP H10124003 A JPH10124003 A JP H10124003A
Authority
JP
Japan
Prior art keywords
power consumption
apl
video signal
screen
plasma display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8275741A
Other languages
Japanese (ja)
Inventor
Minoru Haga
稔 芳賀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu General Ltd
Original Assignee
Fujitsu General Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu General Ltd filed Critical Fujitsu General Ltd
Priority to JP8275741A priority Critical patent/JPH10124003A/en
Publication of JPH10124003A publication Critical patent/JPH10124003A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To display a picture with the maximum brightness and to perform display in which brightness between each screen is even in multi-screen display. SOLUTION: Plural display units 3 using PDP 3b (plasma display panel) are arranged longitudinally and laterally, one input video signal S1 is converted into a digital signal by an A/D converter 1, enlarged and divided by an enlarging/dividing section 2 and displayed, and a multi-screen plasma display device is constituted. Video signals for each display unit enlarged and divided by the enlarging/dividing section 2 are branched and inputted to APL(average picture level) calculating section 4, 4,..., and APL for each video signal is obtained. APL for each video signal are compared by a comparator 5, APL having the maximum value is inputted to a power consumption control section 3 of a display unit 3 and power consumption is controlled. In the power consumption control section 3a, power consumption of the display unit 3 is controlled based on the maximum value of APL as the control signal so that power consumption of the display unit 3 does not exceed the maximum power consumption of PDP.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、PDPの表示輝度
を最大限に引き出すとともに、各画面間の明るさのムラ
のでないマルチ画面プラズマディスプレイ装置に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-screen plasma display device which maximizes the display brightness of a PDP and has no uneven brightness between screens.

【0002】[0002]

【従来の技術】PDPにテレビ映像等を表示するとき、
その最大の発光輝度が十分とはいえない場合がある。す
なわち映像信号レベルが高い明るい画面に対応してPD
Pの最大消費電力から制限される消費電力に設定してお
くと、中間の明るさあるいは暗い画面では、十分な明る
さがとれない。そこで、入力の映像信号のレベルに応じ
てPDPの消費電力を制御する自動消費電力制御機能を
設けて、最大消費電力内で明るい表示画面が得られるよ
うにするのが一般的である。しかし、この自動消費電力
制御機能を設けた表示ユニットでマルチ画面を構成する
と、各ユニット毎に明るさが異なり消費電力の制御量も
異なるため、表示ユニット間で明るさのムラが生じて表
示画質を損ねる問題がある。
2. Description of the Related Art When displaying television images on a PDP,
The maximum emission luminance may not be sufficient. That is, a PD corresponding to a bright screen with a high video signal level
If the power consumption is set to be limited from the maximum power consumption of P, sufficient brightness cannot be obtained on an intermediate brightness or dark screen. Therefore, it is common to provide an automatic power consumption control function for controlling the power consumption of the PDP according to the level of the input video signal so that a bright display screen can be obtained within the maximum power consumption. However, if a display unit equipped with this automatic power consumption control function constitutes a multi-screen, the brightness of each unit is different and the amount of power consumption control is also different. There is a problem that impairs.

【0003】[0003]

【発明が解決しようとする課題】本発明は上記問題点に
鑑みなされたもので、マルチ画面表示で最大の明るさで
表示するとともに、各画面間の明るさのムラのない表示
を行う技術を提供することを目的とする。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been developed in view of the above-mentioned problem. The purpose is to provide.

【0004】[0004]

【課題を解決するための手段】入力映像信号のAPL等
を制御信号として前記表示ユニットの消費電力を制御す
る消費電力制御部を設けて、1つの前記制御信号でいず
れの表示ユニットもPDPの最大消費電力を越えないよ
うに制御して、各表示ユニット間で消費電力の制御量を
同一として各画面の明るさのムラを無くす。
A power consumption control unit for controlling the power consumption of the display unit by using the APL of an input video signal as a control signal is provided, and any one of the display units is controlled by a single control signal. The power consumption is controlled so as not to exceed, so that the control amount of the power consumption is the same for each display unit, thereby eliminating the unevenness of the brightness of each screen.

【0005】[0005]

【発明の実施の形態】PDPを用いた表示ユニットを複
数個縦横に並べて1つのテレビ映像等の入力映像信号を
拡大分割して表示するマルチ画面プラズマディスプレイ
装置において、入力映像信号のAPL等を制御信号とし
て前記表示ユニットの消費電力を制御する消費電力制御
部を設けて、1つの前記制御信号でいずれの表示ユニッ
トもPDPの最大消費電力を越えないように制御する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a multi-screen plasma display device which displays a plurality of display units using a PDP vertically and horizontally and enlarges and displays an input video signal such as one TV video, the APL of the input video signal is controlled. A power consumption control unit for controlling the power consumption of the display unit is provided as a signal, and one control signal controls any of the display units so as not to exceed the maximum power consumption of the PDP.

【0006】前記消費電力制御部の制御信号は、前記入
力映像信号を拡大分割した後の各表示ユニット当ての映
像信号から求めたAPLとする。
The control signal of the power consumption control section is an APL obtained from a video signal applied to each display unit after the input video signal is enlarged and divided.

【0007】前記APLの比較器を設け、各表示ユニッ
ト当ての映像信号から求めたAPLの最大の値を持つA
PLを前記制御信号とする。
A comparator having the APL is provided, and the APL having the maximum value of the APL obtained from the video signal applied to each display unit is provided.
Let PL be the control signal.

【0008】前記消費電力制御部は、PDPを駆動する
発光パルスの周波数を制御することにより行う。
The power consumption control section controls the frequency of a light emission pulse for driving the PDP.

【0009】前記消費電力制御部は、PDPに中間調を
表示するための映像信号の1フィールドを表示輝度の割
合で分割したサブフィールドの周期を制御する。
The power consumption control section controls the period of a subfield obtained by dividing one field of a video signal for displaying a halftone on a PDP at a display luminance ratio.

【0010】[0010]

【実施例】図1は、本発明によるマルチ画面プラズマデ
ィスプレイ装置の概要ブロック図である。PDP3bを
用いた表示ユニット3、3、・・を複数個縦横に並べて
1つのテレビ映像等の入力映像信号S1をA/D変換器
1でディジタル化し、拡大分割部2で拡大分割して各表
示ユニット当ての映像信号として表示し、マルチ画面プ
ラズマディスプレイ装置を構成する。拡大分割部2で拡
大分割した各表示ユニット当ての映像信号を、APL算
出部4、4、・・に分岐して入力し各映像信号毎のAP
Lを求める。その各映像信号毎のAPLを比較器5で比
較して、最大の値を持つAPLを表示ユニット3の消費
電力制御部3aに入力して制御する。消費電力制御部3
aでは、上記制御信号としての最大のAPLの値に基づ
いて表示ユニット3の消費電力を制御して、表示ユニッ
ト3の消費電力がPDPの最大消費電力を越えないよう
に制御する。
FIG. 1 is a schematic block diagram of a multi-screen plasma display device according to the present invention. A plurality of display units 3, 3,... Using the PDP 3b are arranged vertically and horizontally to digitize an input video signal S1 such as one TV video by an A / D converter 1, and enlarge and divide by an enlargement / division unit 2 for each display. The multi-screen plasma display device is displayed as a video signal applied to the unit. The video signal applied to each display unit that has been enlarged and divided by the enlargement / division unit 2 is branched and input to the APL calculation units 4, 4,.
Find L. The APL for each video signal is compared by the comparator 5, and the APL having the maximum value is input to the power consumption control unit 3a of the display unit 3 and controlled. Power consumption control unit 3
In a, the power consumption of the display unit 3 is controlled based on the maximum APL value as the control signal so that the power consumption of the display unit 3 does not exceed the maximum power consumption of the PDP.

【0011】消費電力制御部3aでは、上記の最大のA
PLを入力して、各APLの値に対して予め定めたPD
Pを駆動する発光パルスの周波数をルックアップテーブ
ルから読み出して、PDPを駆動する発光パルスの周波
数として設定する。あるいは消費電力制御部3aは、上
記の最大のAPLを入力して、各APLの値に対して予
め定めた、PDPを駆動するPDPに中間調を表示する
ための映像信号の1フィールドを表示輝度の割合で分割
したサブフィールドの各周期をルックアップテーブルか
ら読み出して、PDPを駆動するサブフィールドの周期
として設定する。
In the power consumption control section 3a, the maximum A
PL is input and a predetermined PD is set for each APL value.
The frequency of the light emission pulse for driving P is read from the look-up table and set as the frequency of the light emission pulse for driving the PDP. Alternatively, the power consumption control unit 3a inputs the maximum APL, and displays one field of a video signal for displaying a halftone on the PDP driving the PDP, which is determined in advance for each APL value, and displays the display brightness. Is read from the look-up table and set as the period of the subfield for driving the PDP.

【0012】[0012]

【発明の効果】本発明は、以上説明したような形態で実
施され、以下に記載するような効果を奏する。
The present invention is embodied in the form described above, and has the following effects.

【0013】入力映像信号のAPL等を制御信号として
前記表示ユニットの消費電力を制御する消費電力制御部
を設けて、1つの前記制御信号でいずれの表示ユニット
もPDPの最大消費電力を越えないように制御すること
により、各表示ユニット間の消費電力を制御する制御量
が同一となるため、マルチ画面の各画面の明るさのムラ
が無くなる。従って、表示画質のよいマルチ画面表示が
得られる。
A power consumption control unit for controlling the power consumption of the display unit using the APL or the like of the input video signal as a control signal is provided so that any one of the control signals does not exceed the maximum power consumption of the PDP. , The amount of control for controlling the power consumption between the display units becomes the same, so that unevenness in the brightness of each screen of the multi-screen is eliminated. Therefore, a multi-screen display with good display quality can be obtained.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明によるマルチ画面プラズマディスプレイ
装置の概要ブロック図である。
FIG. 1 is a schematic block diagram of a multi-screen plasma display device according to the present invention.

【符号の説明】[Explanation of symbols]

1 A/D変換器 2 拡大分割部 3 表示ユニット 3a 消費電力制御部 3b PDP 4 APL算出部 5 比較器 DESCRIPTION OF SYMBOLS 1 A / D converter 2 Enlargement division part 3 Display unit 3a Power consumption control part 3b PDP 4 APL calculation part 5 Comparator

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 PDP(プラズマディスプレイパネル)
を用いた表示ユニットを複数個縦横に並べて1つのテレ
ビ映像等の入力映像信号を拡大分割して表示するマルチ
画面プラズマディスプレイ装置において、入力映像信号
のAPL(平均映像レベル)等を制御信号として前記表
示ユニットの消費電力を制御する消費電力制御部を設け
て、1つの前記制御信号でいずれの表示ユニットもPD
Pの最大消費電力を越えないように制御することを特徴
としたマルチ画面プラズマディスプレイ装置。
1. PDP (Plasma Display Panel)
In a multi-screen plasma display device in which a plurality of display units are arranged vertically and horizontally and an input video signal such as one TV video is enlarged and displayed, an APL (average video level) of the input video signal is used as a control signal and the like. A power consumption control unit for controlling the power consumption of the display unit is provided, and any one of the display units can be controlled by one control signal.
A multi-screen plasma display device characterized by controlling so as not to exceed the maximum power consumption of P.
【請求項2】 前記消費電力制御部の制御信号は、前記
入力映像信号を拡大分割した後の各表示ユニット当ての
映像信号から求めたAPLとすることを特徴とした請求
項1記載のマルチ画面プラズマディスプレイ装置。
2. The multi-screen according to claim 1, wherein the control signal of the power consumption control unit is an APL obtained from a video signal applied to each display unit after the input video signal is enlarged and divided. Plasma display device.
【請求項3】 前記APLの比較器を設け、各表示ユニ
ット当ての映像信号から求めたAPLの最大の値を持つ
APLを前記制御信号とすることを特徴とした請求項2
記載のマルチ画面プラズマディスプレイ装置。
3. The control signal according to claim 2, wherein a comparator of the APL is provided, and an APL having a maximum value of the APL obtained from a video signal applied to each display unit is used as the control signal.
The multi-screen plasma display device as described in the above.
【請求項4】 前記消費電力制御部は、PDPを駆動す
る発光パルスの周波数を制御することにより行うことを
特徴とした請求項1記載のマルチ画面プラズマディスプ
レイ装置。
4. The multi-screen plasma display device according to claim 1, wherein the power consumption control unit performs the control by controlling a frequency of a light emission pulse for driving a PDP.
【請求項5】 前記消費電力制御部は、PDPに中間調
を表示するための映像信号の1フィールドを表示輝度の
割合で分割したサブフィールドの周期を制御することに
より行うことを特徴とした請求項1記載のマルチ画面プ
ラズマディスプレイ装置。
5. The power consumption control unit according to claim 1, wherein the control is performed by controlling a period of a subfield obtained by dividing one field of a video signal for displaying a halftone on a PDP at a display luminance ratio. Item 2. A multi-screen plasma display device according to item 1.
JP8275741A 1996-10-18 1996-10-18 Multi-screen plasma display device Pending JPH10124003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8275741A JPH10124003A (en) 1996-10-18 1996-10-18 Multi-screen plasma display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8275741A JPH10124003A (en) 1996-10-18 1996-10-18 Multi-screen plasma display device

Publications (1)

Publication Number Publication Date
JPH10124003A true JPH10124003A (en) 1998-05-15

Family

ID=17559752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8275741A Pending JPH10124003A (en) 1996-10-18 1996-10-18 Multi-screen plasma display device

Country Status (1)

Country Link
JP (1) JPH10124003A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000027757A (en) * 1998-10-29 2000-05-15 김영환 Circuit for driving plasma display panel
KR20010077727A (en) * 2000-02-08 2001-08-20 김순택 Method and apparatus to control drive-power for plasma display panel
JP2002006804A (en) * 2000-06-27 2002-01-11 Nec Corp Multiple screen display device
KR100436231B1 (en) * 1998-12-30 2004-07-16 주식회사 대우일렉트로닉스 PD TV's automatic brightness control
WO2004077395A1 (en) * 2003-02-28 2004-09-10 Orion Electric Co. Ltd. Multi screen plasma display panel device
JP2009042348A (en) * 2007-08-07 2009-02-26 Panasonic Corp Plasma display device and method for driving plasma display panel
US7583242B2 (en) 2003-10-23 2009-09-01 Samsung Sdi Co., Ltd. Plasma display panel, and apparatus and method for driving the same
JP2010527043A (en) * 2007-05-16 2010-08-05 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Dynamic power control of display screen
WO2011099234A1 (en) * 2010-02-09 2011-08-18 パナソニック株式会社 Three-dimensional display device and three-dimensional display method
CN109584807A (en) * 2017-09-29 2019-04-05 乐金显示有限公司 More vision systems

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000027757A (en) * 1998-10-29 2000-05-15 김영환 Circuit for driving plasma display panel
KR100436231B1 (en) * 1998-12-30 2004-07-16 주식회사 대우일렉트로닉스 PD TV's automatic brightness control
KR20010077727A (en) * 2000-02-08 2001-08-20 김순택 Method and apparatus to control drive-power for plasma display panel
JP2002006804A (en) * 2000-06-27 2002-01-11 Nec Corp Multiple screen display device
WO2004077395A1 (en) * 2003-02-28 2004-09-10 Orion Electric Co. Ltd. Multi screen plasma display panel device
US7583242B2 (en) 2003-10-23 2009-09-01 Samsung Sdi Co., Ltd. Plasma display panel, and apparatus and method for driving the same
JP2010527043A (en) * 2007-05-16 2010-08-05 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Dynamic power control of display screen
JP2009042348A (en) * 2007-08-07 2009-02-26 Panasonic Corp Plasma display device and method for driving plasma display panel
WO2011099234A1 (en) * 2010-02-09 2011-08-18 パナソニック株式会社 Three-dimensional display device and three-dimensional display method
CN109584807A (en) * 2017-09-29 2019-04-05 乐金显示有限公司 More vision systems
US11094242B2 (en) 2017-09-29 2021-08-17 Lg Display Co., Ltd. Multi-vision system
CN109584807B (en) * 2017-09-29 2021-11-30 乐金显示有限公司 Multi-vision system

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