JP5201705B2 - 映像信号の表示制御装置および表示制御方法 - Google Patents
映像信号の表示制御装置および表示制御方法 Download PDFInfo
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- JP5201705B2 JP5201705B2 JP2005338725A JP2005338725A JP5201705B2 JP 5201705 B2 JP5201705 B2 JP 5201705B2 JP 2005338725 A JP2005338725 A JP 2005338725A JP 2005338725 A JP2005338725 A JP 2005338725A JP 5201705 B2 JP5201705 B2 JP 5201705B2
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- 238000000034 method Methods 0.000 title claims description 9
- 230000015654 memory Effects 0.000 claims description 57
- 235000019557 luminance Nutrition 0.000 claims 15
- 238000010586 diagram Methods 0.000 description 12
- 239000003990 capacitor Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
- G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0613—The adjustment depending on the type of the information to be displayed
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/025—Reduction of instantaneous peaks of current
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
- G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
- G09G3/2022—Display of intermediate tones by time modulation using two or more time intervals using sub-frames
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/001—Arbitration of resources in a display system, e.g. control of access to frame buffer by video controller and/or main processor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Control Of El Displays (AREA)
- Control Of Gas Discharge Display Tubes (AREA)
- Electroluminescent Light Sources (AREA)
- Liquid Crystal Display Device Control (AREA)
Description
2 平均輝度算出手段
3 輝度制御手段
11 発光制御回路
12 A/D変換回路
13 輝度設定テーブル
21 走査ドライバ
22 データドライバ
23 消去ドライバ
24 電源供給回路
31 表示パネル
32 画素
33 走査線
34 データ線
35 消去信号線
36 電源供給線
A 表示制御装置
B 映像表示手段
C1 電荷保持用キャパシタ
E1 有機EL素子
Tr1 データ書き込みトランジスタ
Tr2 点灯駆動トランジスタ
Tr3 消去トランジスタ
Claims (5)
- 入力される映像信号に基づいて映像を表示する表示手段を駆動制御するための表示制御装置であって、
前記表示手段は、1フレーム期間を複数のサブフレーム期間に分割し、前記サブフレーム期間における画素の点灯期間の累計により階調制御を実現するように駆動制御され、
前記映像信号の平均輝度を算出する平均輝度算出手段と、前記平均輝度算出手段により得られる前記平均輝度に基づいて、前記映像信号の輝度を制御する輝度制御手段と、フレーム毎に新しい映像信号がオーバーライトされるように動作する映像メモリとが具備され、
前記平均輝度算出手段は、1フレーム期間内においてサブフレーム期間に同期して複数回にわたり前記映像メモリに書き込まれている映像信号を読み出して平均輝度を算出し、算出された前記平均輝度に基づいて次のサブフレーム期間における前記輝度制御手段の輝度制御を実行するように構成されていることを特徴とする映像信号の表示制御装置。 - 1フレーム期間内において複数回にわたり算出される前記平均輝度のうちの少なくとも1つは、互いに異なるフレームに含まれる前記映像信号に基づいて算出されることを特徴とする請求項1に記載された映像信号の表示制御装置。
- 入力される映像信号に基づいて映像を表示する表示手段を駆動制御するための表示制御方法であって、
前記表示手段は、1フレーム期間を複数のサブフレーム期間に分割し、前記サブフレーム期間における画素の点灯期間の累計により階調制御を実現するように駆動制御を実行し、フレーム毎に新しい映像信号を映像メモリにオーバーライトするように動作し、
1フレーム期間内においてサブフレーム期間に同期して複数回にわたり前記映像メモリに書き込まれている映像信号を読み出して平均輝度を算出すると共に、算出された前記平均輝度に基づいて、次のサブフレーム期間における前記表示手段に与える映像信号の輝度を制御する輝度制御動作を実行することを特徴とする映像信号の表示制御方法。 - 1フレーム期間内において複数回にわたり算出される前記平均輝度のうちの少なくとも1つは、互いに異なるフレームに含まれる前記映像信号に基づいて算出されることを特徴とする請求項3に記載された映像信号の表示制御方法。
- 前記表示手段に与える映像信号の輝度は、算出される前記平均輝度が大きくなるにしたがって小さくなるように制御されることを特徴とする請求項3または請求項4に記載された映像信号の表示制御方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2005338725A JP5201705B2 (ja) | 2005-11-24 | 2005-11-24 | 映像信号の表示制御装置および表示制御方法 |
US11/602,239 US8004612B2 (en) | 2005-11-24 | 2006-11-21 | Apparatus and method for controlling display brightness in an image display device |
Applications Claiming Priority (1)
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JP2005338725A JP5201705B2 (ja) | 2005-11-24 | 2005-11-24 | 映像信号の表示制御装置および表示制御方法 |
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JP2007147731A JP2007147731A (ja) | 2007-06-14 |
JP5201705B2 true JP5201705B2 (ja) | 2013-06-05 |
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JP (1) | JP5201705B2 (ja) |
Families Citing this family (10)
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WO2008129856A1 (ja) * | 2007-04-18 | 2008-10-30 | Panasonic Corporation | プラズマディスプレイ装置およびその駆動方法 |
KR100931468B1 (ko) * | 2008-05-09 | 2009-12-11 | 삼성모바일디스플레이주식회사 | 유기전계발광표시장치 및 그의 구동방법 |
US8599222B2 (en) | 2008-09-04 | 2013-12-03 | Seiko Epson Corporation | Method of driving pixel circuit, light emitting device, and electronic apparatus |
US20100134690A1 (en) * | 2008-12-03 | 2010-06-03 | Sanyo Electric Co., Ltd. | Television receiver |
KR101256025B1 (ko) | 2009-06-05 | 2013-04-18 | 삼성디스플레이 주식회사 | 표시 장치 및 그 구동 방법 |
KR20100131744A (ko) | 2009-06-08 | 2010-12-16 | 삼성모바일디스플레이주식회사 | 표시 장치 및 그 구동 방법 |
JP5340083B2 (ja) * | 2009-08-28 | 2013-11-13 | キヤノン株式会社 | 画像表示装置及びその輝度制御方法 |
JP2013003238A (ja) * | 2011-06-14 | 2013-01-07 | Sony Corp | 映像信号処理回路、映像信号処理方法、表示装置、及び、電子機器 |
JP5957675B2 (ja) * | 2012-12-21 | 2016-07-27 | 株式会社Joled | 自発光表示装置、自発光表示装置の制御方法及びコンピュータプログラム |
CN106097967A (zh) * | 2016-08-25 | 2016-11-09 | 深圳市华星光电技术有限公司 | 一种oled pwm驱动方法 |
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JPH08317322A (ja) * | 1995-05-19 | 1996-11-29 | Fujitsu General Ltd | 多画面表示システム |
JP3575153B2 (ja) * | 1996-01-17 | 2004-10-13 | ソニー株式会社 | アスペクト比判別回路及び映像モニタ装置 |
JPH09281927A (ja) | 1996-04-19 | 1997-10-31 | Fujitsu General Ltd | プラズマディスプレイ装置 |
US7440612B2 (en) * | 1998-11-13 | 2008-10-21 | Sony Corporation | Image processing apparatus and method capable of correcting gradation of image data |
JP4287004B2 (ja) | 1999-12-17 | 2009-07-01 | エルジー エレクトロニクス インコーポレイティド | プラズマディスプレイパネルの階調表示処理装置及びその処理方法 |
JP3660610B2 (ja) * | 2001-07-10 | 2005-06-15 | 株式会社東芝 | 画像表示方法 |
JP4851663B2 (ja) * | 2001-07-19 | 2012-01-11 | パナソニック株式会社 | 表示パネルの輝度制御方法 |
JP2003244480A (ja) * | 2002-02-20 | 2003-08-29 | Fujitsu General Ltd | 表示映像の輝度制御回路 |
JP4079102B2 (ja) * | 2003-05-22 | 2008-04-23 | ソニー株式会社 | ディスプレイ装置、画像表示方法 |
JP2005142680A (ja) * | 2003-11-04 | 2005-06-02 | Olympus Corp | 画像処理装置 |
KR20050091509A (ko) * | 2004-03-12 | 2005-09-15 | 삼성전자주식회사 | 디스플레이장치 |
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US20070115215A1 (en) | 2007-05-24 |
US8004612B2 (en) | 2011-08-23 |
JP2007147731A (ja) | 2007-06-14 |
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