JP2021033281A - 表示装置の特性補償方法およびシステム - Google Patents
表示装置の特性補償方法およびシステム Download PDFInfo
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- Control Of El Displays (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
【解決手段】本発明の一実施例による表示装置の特性補償方法は、第1時間区間の間、表示装置の画素に対する第1画素電流を第1基準電流と比較して、前記第1画素電流と前記第1基準電流の差を示す第1画素電流誤差信号を生成すること、及び、前記第1画素電流誤差信号に基づいて前記画素に対する一つ以上の補償係数を更新することを含み、第2時間区間の間、前記画素に対する第2画素電流を第2基準電流と比較して、前記第2画素電流と前記第2基準電流の差を示す第2画素電流誤差信号を生成すること、及び、前記第2画素電流誤差信号に基づいて前記画素に対する前記一つ以上の補償係数を更新することを含む。
【選択図】図1
Description
110:駆動トランジスター
115:キャパシタ
120:発光ダイオード
125:上部パス−ゲートトランジスター
130:下部パス−ゲートトランジスター
135:駆動感知導体
140:ソースノード
145:画素駆動および感知回路
200:画素駆動および感知回路の出力
202:画素駆動および感知回路の入力
210:波形生成回路
215、225:デジタル−アナログ変換器
220:駆動増幅器
227:積分器
228:比較器
230:数値ドレイン−ソース電流モデル
235:制御器
Claims (20)
- 第1時間区間の間、
表示装置の画素に対する第1画素電流を第1基準電流と比較して、前記第1画素電流と前記第1基準電流の差を示す第1画素電流誤差信号を生成すること、及び、
前記第1画素電流誤差信号に基づいて前記画素に対する一つ以上の補償係数を更新すること
を含み、
第2時間区間の間、
前記画素に対する第2画素電流を第2基準電流と比較して、前記第2画素電流と前記第2基準電流の差を示す第2画素電流誤差信号を生成すること、及び、
前記第2画素電流誤差信号に基づいて前記画素に対する前記一つ以上の補償係数を更新すること
を含む、
表示装置の特性補償方法。 - 前記第1時間区間の間、第1受信コードワードに基づいて前記画素に第1制御電圧を印加すること、
前記第2時間区間の間、第2受信コードワードに基づいて前記画素に第2制御電圧を印加すること
をさらに含む、請求項1に記載の表示装置の特性補償方法。 - 前記第1時間区間の間、前記第1受信コードワードに基づいて前記第1基準電流を生成すること、及び、
前記第2時間区間の間、前記第2受信コードワードに基づいて前記第2基準電流を生成すること
をさらに含む、請求項2に記載の表示装置の特性補償方法。 - 前記一つ以上の補償係数は、
第1補償係数、及び、
第2補償係数
を含み、
前記画素に第1制御電圧を印加することは、
前記第1補償係数に前記第1受信コードワードを掛けて第1補償コードワードを生成すること、及び、
前記第1補償コードワードに前記第2補償係数を加えて第2補償コードワードを生成すること
を含む、
請求項3に記載の表示装置の特性補償方法。 - 前記一つ以上の補償係数は、第3補償係数をさらに含み、
前記画素に第1制御電圧を印加することは、第1電圧の第1部分、第2電圧の第2部分を有する波形を前記画素に延長されている導体に印加することをさらに含み、
前記第2電圧は、前記第2補償コードワードに比例し、
前記第2電圧に対する前記第1電圧の比が前記第3補償係数である、
請求項4に記載の表示装置の特性補償方法。 - 前記第2時間区間の間に前記一つ以上の補償係数を更新することは、前記第2受信コードワードおよび前記第1受信コードワードにも基づいて行われる、請求項5に記載の表示装置の特性補償方法。
- 前記第2時間区間の間に前記一つ以上の補償係数を更新することは、
前記第2画素電流誤差信号、
前記第2受信コードワードと前記第1受信コードワードの差、及び、
第1定数
の掛けを前記第1補償係数に加える段階を含む、
請求項6に記載の表示装置の特性補償方法。 - 前記第2時間区間の間に前記一つ以上の補償係数を更新することは、
前記第2画素電流誤差信号、及び、
第2定数
の掛けを前記第2補償係数に加えることをさらに含む、
請求項7に記載の表示装置の特性補償方法。 - 前記第1時間区間より短く、前記第2時間区間より短い第3時間区間の間、
前記画素に対する第3画素電流を第3基準電流と比較して、前記第3画素電流と前記第3基準電流の差を示す第3画素電流誤差信号を生成すること、及び、
前記第3画素電流誤差信号に基づいて前記画素に対する前記一つ以上の補償係数を更新すること
をさらに含み、
前記第1時間区間より短く、前記第2時間区間より短い第4時間区間の間、
前記画素に対する第4画素電流を第4基準電流と比較して、前記第4画素電流と前記第4基準電流の差を示す第4画素電流誤差信号を生成すること、及び、
前記第4画素電流誤差信号に基づいて前記画素に対する前記一つ以上の補償係数を更新すること
をさらに含む、
請求項8に記載の表示装置の特性補償方法。 - 前記表示装置の特性補償方法は、
前記第3時間区間の間、第3受信コードワードに基づいて前記画素に第3制御電圧を印加すること、及び、
前記第4時間区間の間、第4受信コードワードに基づいて前記画素に第4制御電圧を印加すること
をさらに含み、
前記第4時間区間の間に前記一つ以上の補償係数を更新することは、
前記第4画素電流誤差信号、
前記第4受信コードワードと前記第3受信コードワードの差、及び、
第3定数
の掛けを前記第3補償係数に加えることをさらに含む、
請求項9に記載の表示装置の特性補償方法。 - 第5時間区間の間、
前記画素に対する第5画素電流を第5基準電流と比較して、前記第5画素電流と前記第5基準電流の差を示す電流差信号を生成すること、
前記電流差信号の絶対値がしきい値を越えれば前記画素に対する前記一つ以上の補償係数を更新すること、及び、
前記電流差信号の絶対値がしきい値を越えなければ前記画素に対する前記一つ以上の補償係数を変えずにそのまま置くこと
をさらに含む、
請求項10に記載の表示装置の特性補償方法。 - 画素を含む表示装置、及び、
画素駆動および感知回路
を含むシステムであって、
前記システムは、
第1時間区間の間、
前記画素に対する第1画素電流を第1基準電流と比較して、前記第1画素電流と前記第1基準電流の差を示す第1画素電流誤差信号を生成し、
前記第1画素電流誤差信号に基づいて前記画素に対する一つ以上の補償係数を更新し、
第2時間区間の間、
前記画素に対する第2画素電流を第2基準電流と比較して、前記第2画素電流と前記第2基準電流の差を示す第2画素電流誤差信号を生成し、
前記第2画素電流誤差信号に基づいて前記画素に対する前記一つ以上の補償係数を更新する
システム。 - 前記システムは、
前記第1時間区間の間、第1受信コードワードに基づいて前記画素に第1制御電圧を印加し、
前記第2時間区間の間、第2受信コードワードに基づいて前記画素に第2制御電圧を印加する、
請求項12に記載のシステム。 - 前記システムは、
前記第1時間区間の間、前記第1受信コードワードに基づいて前記第1基準電流を生成し、
前記第2時間区間の間、前記第2受信コードワードに基づいて前記第2基準電流を生成する、
請求項13に記載のシステム。 - 前記一つ以上の補償係数は、
第1補償係数、及び、
第2補償係数
を含み、
前記画素に第1制御電圧を印加する動作は、
前記第1補償係数に前記第1受信コードワードを掛けて第1補償コードワードを生成し、
前記第1補償コードワードに前記第2補償係数を加えて第2補償コードワードを生成する
動作を含む、
請求項14に記載のシステム。 - 前記一つ以上の補償係数は、第3補償係数をさらに含み、
前記画素に第1制御電圧を印加する動作は、第1電圧の第1部分、第2電圧の第2部分を有する波形を前記画素に延長されている導体に印加する動作をさらに含み、
前記第2電圧は、前記第2補償コードワードに比例し、
前記第2電圧に対する前記第1電圧の比が前記第3補償係数である、
請求項15に記載のシステム。 - 前記第2時間区間の間に前記一つ以上の補償係数を更新する動作は、前記第2受信コードワードおよび前記第1受信コードワードにも基づいて行われる、請求項16に記載のシステム。
- 前記第2時間区間の間に前記一つ以上の補償係数を更新する動作は、
前記第2画素電流誤差信号、
前記第2受信コードワードと前記第1受信コードワードの差、及び、
第1定数
の掛けを前記第1補償係数に加える動作を含む、
請求項17に記載のシステム。 - 前記第2時間区間の間に前記一つ以上の補償係数を更新する動作は、
前記第2画素電流誤差信号、及び、
第2定数
の掛けを前記第2補償係数に加える動作をさらに含む、
請求項18に記載のシステム。 - 画素を含む表示装置、及び、
前記画素を駆動し、前記画素に生成される電流を感知する手段
を含むシステムであって、
前記システムは、
第1時間区間の間、
前記画素に対する第1画素電流を第1基準電流と比較して、前記第1画素電流と前記第1基準電流の差を示す第1画素電流誤差信号を生成し、
前記第1画素電流誤差信号に基づいて前記画素に対する一つ以上の補償係数を更新し、
第2時間区間の間、
前記画素に対する第2画素電流を第2基準電流と比較して、前記第2画素電流と前記第2基準電流の差を示す第2画素電流誤差信号を生成し、
前記第2画素電流誤差信号に基づいて前記画素に対する前記一つ以上の補償係数を更新する
システム。
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11632830B2 (en) * | 2020-08-07 | 2023-04-18 | Samsung Display Co., Ltd. | System and method for transistor parameter estimation |
US11961468B2 (en) * | 2020-09-22 | 2024-04-16 | Samsung Display Co., Ltd. | Multi-pixel collective adjustment for steady state tracking of parameters |
CN113808529B (zh) * | 2021-09-28 | 2023-03-21 | 深圳市华星光电半导体显示技术有限公司 | 像素电路及其外部补偿方法 |
Family Cites Families (67)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5239210A (en) | 1991-01-15 | 1993-08-24 | Crystal Semiconductor, Inc. | Low distortion unity gain amplifier for dac |
US5969758A (en) | 1997-06-02 | 1999-10-19 | Sarnoff Corporation | DC offset and gain correction for CMOS image sensor |
US6885396B1 (en) | 1998-03-09 | 2005-04-26 | Micron Technology, Inc. | Readout circuit with gain and analog-to-digital a conversion for image sensor |
US6753913B1 (en) | 1999-09-03 | 2004-06-22 | Texas Instruments Incorporated | CMOS analog front end architecture with variable gain for digital cameras and camcorders |
US6822679B1 (en) | 2000-10-31 | 2004-11-23 | Texas Instruments Incorporated | Offset correction to the output of a charge coupled device |
US6753801B2 (en) | 2002-08-23 | 2004-06-22 | Micron Technology, Inc. | Fully differential reference driver for pipeline analog to digital converter |
US6919551B2 (en) | 2002-08-29 | 2005-07-19 | Micron Technology Inc. | Differential column readout scheme for CMOS APS pixels |
JP4530622B2 (ja) | 2003-04-10 | 2010-08-25 | Okiセミコンダクタ株式会社 | 表示パネルの駆動装置 |
CA2443206A1 (en) * | 2003-09-23 | 2005-03-23 | Ignis Innovation Inc. | Amoled display backplanes - pixel driver circuits, array architecture, and external compensation |
US20050243193A1 (en) | 2004-04-30 | 2005-11-03 | Bob Gove | Suppression of row-wise noise in an imager |
EP1594308A1 (en) | 2004-05-07 | 2005-11-09 | Dialog Semiconductor GmbH | Single line Bayer filter RGB bad pixel correction |
CA2490861A1 (en) | 2004-12-01 | 2006-06-01 | Ignis Innovation Inc. | Fuzzy control for stable amoled displays |
US7230486B2 (en) | 2004-12-23 | 2007-06-12 | Micron Technology, Inc. | Low voltage CMOS differential amplifier |
KR100670494B1 (ko) | 2005-04-26 | 2007-01-16 | 매그나칩 반도체 유한회사 | 액정표시장치의 구동회로 및 구동방법 |
JP2007043433A (ja) | 2005-08-03 | 2007-02-15 | Renesas Technology Corp | 半導体集積回路装置 |
US8228096B2 (en) | 2007-03-02 | 2012-07-24 | Kawasaki Microelectronics, Inc. | Circuit and method for current-mode output driver with pre-emphasis |
KR101409514B1 (ko) | 2007-06-05 | 2014-06-19 | 엘지디스플레이 주식회사 | 액정표시장치와 그의 구동방법 |
JP4508222B2 (ja) | 2007-08-31 | 2010-07-21 | ソニー株式会社 | プリチャージ制御方法及び表示装置 |
US7667501B2 (en) | 2008-03-19 | 2010-02-23 | Texas Instruments Incorporated | Correlated double sampling technique |
US7764118B2 (en) | 2008-09-11 | 2010-07-27 | Analog Devices, Inc. | Auto-correction feedback loop for offset and ripple suppression in a chopper-stabilized amplifier |
US9370075B2 (en) | 2008-12-09 | 2016-06-14 | Ignis Innovation Inc. | System and method for fast compensation programming of pixels in a display |
US8194063B2 (en) * | 2009-03-04 | 2012-06-05 | Global Oled Technology Llc | Electroluminescent display compensated drive signal |
US20100271517A1 (en) | 2009-04-24 | 2010-10-28 | Yannick De Wit | In-pixel correlated double sampling pixel |
KR101065405B1 (ko) * | 2010-04-14 | 2011-09-16 | 삼성모바일디스플레이주식회사 | 표시장치 및 그 구동 방법 |
US9466240B2 (en) * | 2011-05-26 | 2016-10-11 | Ignis Innovation Inc. | Adaptive feedback system for compensating for aging pixel areas with enhanced estimation speed |
EP2945147B1 (en) | 2011-05-28 | 2018-08-01 | Ignis Innovation Inc. | Method for fast compensation programming of pixels in a display |
US9191598B2 (en) | 2011-08-09 | 2015-11-17 | Altasens, Inc. | Front-end pixel fixed pattern noise correction in imaging arrays having wide dynamic range |
US20130082936A1 (en) | 2011-09-29 | 2013-04-04 | Sharp Kabushiki Kaisha | Sensor array with high linearity |
KR20130053458A (ko) | 2011-11-14 | 2013-05-24 | 엘지전자 주식회사 | 디스플레이장치 및 전류제어 방법 |
TW201324261A (zh) | 2011-12-01 | 2013-06-16 | Novatek Microelectronics Corp | 多點觸控定位方法 |
US8497731B1 (en) | 2012-05-07 | 2013-07-30 | Freescale Semiconductor, Inc. | Low pass filter circuit |
JP2015527806A (ja) | 2012-07-11 | 2015-09-17 | エルジー エレクトロニクス インコーポレイティド | ビデオ信号処理方法及び装置 |
JP5908084B2 (ja) | 2012-08-02 | 2016-04-26 | シャープ株式会社 | 表示装置およびその駆動方法 |
KR102005052B1 (ko) | 2012-12-03 | 2019-07-31 | 삼성디스플레이 주식회사 | 오차 보상부 및 이를 이용한 유기전계발광 표시장치 |
US9171504B2 (en) | 2013-01-14 | 2015-10-27 | Ignis Innovation Inc. | Driving scheme for emissive displays providing compensation for driving transistor variations |
US9830857B2 (en) * | 2013-01-14 | 2017-11-28 | Ignis Innovation Inc. | Cleaning common unwanted signals from pixel measurements in emissive displays |
JP6138244B2 (ja) | 2013-04-23 | 2017-05-31 | シャープ株式会社 | 表示装置およびその駆動電流検出方法 |
DE102013218973B4 (de) | 2013-09-20 | 2015-11-19 | Albert-Ludwigs-Universität Freiburg | Verfahren und Schaltung zur zeitkontinuierlichen Detektion der Position der Sensormasse bei gleichzeitiger Rückkopplung für kapazitive Sensoren |
KR102197026B1 (ko) | 2014-02-25 | 2020-12-31 | 삼성디스플레이 주식회사 | 유기전계발광 표시장치 |
US9823787B2 (en) | 2014-03-11 | 2017-11-21 | Synaptics Incorporated | Absolute capacitive sensing using sensor electrode pre-emphasis |
US9722582B2 (en) | 2014-05-21 | 2017-08-01 | SK Hynix Inc. | Semiconductor device with output driver pre-emphasis scheme |
CN104123911B (zh) | 2014-07-01 | 2016-05-04 | 京东方科技集团股份有限公司 | 一种驱动方法、驱动装置及有机电致发光显示器件 |
KR102221788B1 (ko) | 2014-07-14 | 2021-03-02 | 삼성전자주식회사 | 고속으로 동작하는 디스플레이 구동 장치 및 그의 제어 방법 |
CN104282271B (zh) * | 2014-10-24 | 2016-09-07 | 京东方科技集团股份有限公司 | 一种显示系统的电阻压降的补偿电路 |
KR102261356B1 (ko) | 2014-12-09 | 2021-06-04 | 엘지디스플레이 주식회사 | 전류센싱회로 및 이를 포함하는 유기발광표시장치 |
US10191597B2 (en) | 2015-06-30 | 2019-01-29 | Synaptics Incorporated | Modulating a reference voltage to preform capacitive sensing |
JP6494335B2 (ja) * | 2015-03-05 | 2019-04-03 | キヤノン株式会社 | 光電変換装置、光電変換装置の駆動方法、および、光電変換システム |
KR102285393B1 (ko) | 2015-03-13 | 2021-08-04 | 삼성디스플레이 주식회사 | 유기 발광 표시 장치 및 이의 구동 방법 |
KR20160148831A (ko) | 2015-06-16 | 2016-12-27 | 삼성디스플레이 주식회사 | 표시장치 및 그의 구동방법 |
KR102457754B1 (ko) | 2015-08-04 | 2022-10-24 | 삼성디스플레이 주식회사 | 유기 발광 표시 장치 및 이의 구동 방법 |
CA2900170A1 (en) * | 2015-08-07 | 2017-02-07 | Gholamreza Chaji | Calibration of pixel based on improved reference values |
US9811205B2 (en) | 2015-09-29 | 2017-11-07 | Synaptics Incorporated | Variable time anti-aliasing filter |
KR102427553B1 (ko) | 2015-12-01 | 2022-08-02 | 엘지디스플레이 주식회사 | 전류 적분기와 이를 포함하는 유기발광 표시장치 |
US10762836B1 (en) | 2016-02-18 | 2020-09-01 | Apple Inc. | Electronic display emission scanning using row drivers and microdrivers |
WO2017214638A1 (en) | 2016-06-10 | 2017-12-14 | Williams, Jack | System for wireless recording and stimulating of bioelectric events |
US10573211B2 (en) | 2016-09-21 | 2020-02-25 | Apple Inc. | Noise mitigation for display panel sensing |
US10393909B2 (en) | 2016-10-11 | 2019-08-27 | Arizona Board Of Regents On Behalf Of The University Of Arizona | Differential target antenna coupling (“DTAC”) data corrections |
KR102627275B1 (ko) | 2016-10-25 | 2024-01-23 | 엘지디스플레이 주식회사 | 유기 발광 표시 장치 |
KR102617966B1 (ko) | 2016-12-28 | 2023-12-28 | 엘지디스플레이 주식회사 | 전계 발광 표시 장치와 그 구동 방법 |
US20180336816A1 (en) | 2017-05-19 | 2018-11-22 | Samsung Electronics Co., Ltd. | Display driver circuit for pre-emphasis operation |
KR102365310B1 (ko) | 2017-07-31 | 2022-02-22 | 삼성디스플레이 주식회사 | 표시장치 |
US10636359B2 (en) | 2017-09-21 | 2020-04-28 | Apple Inc. | OLED voltage driver with current-voltage compensation |
MX2020011618A (es) | 2018-05-02 | 2021-02-16 | Oncosec Medical Inc | Sistemas, métodos y aparatos de electroporación. |
US11012044B2 (en) | 2018-09-19 | 2021-05-18 | Sensata Technologies, Inc. | Amplifier with common mode detection |
US10984712B2 (en) | 2018-12-10 | 2021-04-20 | Sharp Kabushiki Kaisha | TFT pixel circuit for OLED external compensation using an adjusted data voltage for component compensation |
KR102560747B1 (ko) | 2018-12-20 | 2023-07-27 | 엘지디스플레이 주식회사 | 유기발광 표시장치와 그의 픽셀 센싱 방법 |
TWI694718B (zh) | 2019-01-21 | 2020-05-21 | 友達光電股份有限公司 | 驅動裝置以及其驅動信號產生方法 |
-
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- 2019-10-18 US US16/657,680 patent/US11250780B2/en active Active
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- 2020-05-11 KR KR1020200056119A patent/KR102611222B1/ko active IP Right Grant
- 2020-06-15 EP EP20179974.9A patent/EP3779951A1/en active Pending
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