JP2002311898A5 - - Google Patents

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JP2002311898A5
JP2002311898A5 JP2002028984A JP2002028984A JP2002311898A5 JP 2002311898 A5 JP2002311898 A5 JP 2002311898A5 JP 2002028984 A JP2002028984 A JP 2002028984A JP 2002028984 A JP2002028984 A JP 2002028984A JP 2002311898 A5 JP2002311898 A5 JP 2002311898A5
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発光素子と、
前記発光素子の第１の電極と第２の電極の間に流れる電流を測定する手段と、
ビデオ信号を用いて、前記発光素子の第１の電極と第２の電極の間に流れる電流の基準となる電流値を算出する手段と、
前記測定により得られる電流値が、前記基準となる電流値に近づくように、前記発光素子が有する第１の電極と第２の電極の間の電圧を補正する手段とを有することを特徴とする発光装置。A light emitting element ;
Means for measuring a current flowing between the first electrode and the second electrode of the light emitting element;
Means for calculating a current value serving as a reference of a current flowing between the first electrode and the second electrode of the light emitting element using a video signal;
And means for correcting a voltage between the first electrode and the second electrode of the light emitting element so that a current value obtained by the measurement approaches the reference current value. Light emitting device. 発光素子と、
前記発光素子の第１の電極と第２の電極の間に流れる電流を測定する手段と、
ビデオ信号を用いて、前記発光素子の第１の電極と第２の電極の間に流れる電流の、基準となる値を算出する手段と、
前記測定した電流値と、前記基準となる電流値の偏差を算出する手段と、
前記偏差から、前記発光素子が有する第１の電極と第２の電極の間に流れる電流が前記基準となる電流値に近づくような、前記発光素子が有する第１の電極と第２の電極の間の電圧値を算出する手段と、
前記発光素子が有する第１の電極と第２の電極の間の電圧を、前記算出された電圧値に近づくように補正する手段とを有することを特徴とする発光装置。A light emitting element ;
Means for measuring a current flowing between the first electrode and the second electrode of the light emitting element;
Means for calculating a reference value of the current flowing between the first electrode and the second electrode of the light emitting element using a video signal;
Means for calculating a deviation between the measured current value and the reference current value;
From the deviation, the first electrode and the second electrode of the light-emitting element such that the current flowing between the first electrode and the second electrode of the light-emitting element approaches the reference current value. Means for calculating a voltage value between,
A light emitting device comprising: means for correcting a voltage between the first electrode and the second electrode of the light emitting element so as to approach the calculated voltage value. 発光素子と、
前記発光素子の第１の電極と第２の電極の間に流れる電流を測定する手段と、
ビデオ信号を用いて、前記発光素子の第１の電極と第２の電極の間に流れる電流の、基準となる値を算出する手段と、
前記測定により得られる電流値が、前記基準となる電流値に近づくように、前記発光素子が有する第１の電極と第２の電極の間の電圧を補正する手段とを有し、
前記測定により得られる電流値と前記基準となる電流値の偏差が一定の幅で変化するごとに、前記測定により得られる電流値が一定の幅で変化することを特徴とする発光装置。A light emitting element ;
Means for measuring a current flowing between the first electrode and the second electrode of the light emitting element;
Means for calculating a reference value of the current flowing between the first electrode and the second electrode of the light emitting element using a video signal;
Means for correcting the voltage between the first electrode and the second electrode of the light-emitting element so that the current value obtained by the measurement approaches the reference current value;
The light emitting device, wherein the current value obtained by the measurement changes with a constant width every time the deviation between the current value obtained by the measurement and the reference current value changes with a constant width. 発光素子と、
前記発光素子の第１の電極と第２の電極の間に流れる電流を測定する手段と、
ビデオ信号を用いて、前記発光素子の第１の電極と第２の電極の間に流れる電流の、基準となる値を算出する手段と、
前記測定した電流値と、前記基準となる電流値の偏差を算出する手段と、
前記偏差から、前記発光素子が有する第１の電極と第２の電極の間に流れる電流が前記基準となる電流値に近づくような、前記発光素子が有する第１の電極と第２の電極の間の電圧値を算出する手段と、
前記発光素子が有する第１の電極と第２の電極の間の電圧を、前記算出された電圧値に近づくように補正する手段とを有し、
前記偏差が一定の幅で変化するごとに、前記算出された電圧値が一定の大きさで変化することを特徴とする発光装置。A light emitting element ;
Means for measuring a current flowing between the first electrode and the second electrode of the light emitting element;
Means for calculating a reference value of the current flowing between the first electrode and the second electrode of the light emitting element using a video signal;
Means for calculating a deviation between the measured current value and the reference current value;
From the deviation, the first electrode and the second electrode of the light-emitting element such that the current flowing between the first electrode and the second electrode of the light-emitting element approaches the reference current value. Means for calculating a voltage value between,
Means for correcting the voltage between the first electrode and the second electrode of the light emitting element so as to approach the calculated voltage value;
Each time the deviation changes with a certain width, the calculated voltage value changes with a certain magnitude. 画素部、補正回路、可変電源及び電流計を有し、
前記画素部に発光素子を有する画素が複数設けられており、
前記電流計によって、全ての前記発光素子の第１の電極と第２の電極の間に流れる電流の合計が測定され、
前記補正回路は、
デジタルビデオ信号を用いて、発光する前記発光素子の数を算出し、前記発光する発光素子の数と、前記測定した合計の電流値から、前記発光する各発光素子の電流の測定値を算出する手段と、
前記発光する各発光素子の電流の測定値が、前記発光する各発光素子の第１の電極と第２の電極の間に流れる基準となる電流値に近づくように、全ての前記発光素子が有する第１の電極と第２の電極の間の電圧を前記可変電源によって補正する手段とを有することを特徴とする発光装置。Pixel portion, have a correction circuit, a variable power supply and an ammeter,
A plurality of pixels having light emitting elements are provided in the pixel portion,
By the ammeter, the total current flowing between the first electrode and the second electrode of all the light emitting elements is measured,
The correction circuit includes:
The digital video signal is used to calculate the number of light emitting elements that emit light, and the measured value of the current of each light emitting element that emits light is calculated from the number of light emitting elements that emit light and the measured current value. Means,
All the light-emitting elements have a measured value of the current of each light-emitting element that emits light so as to approach a reference current value that flows between the first electrode and the second electrode of each light-emitting element that emits light. A light emitting device comprising: means for correcting a voltage between the first electrode and the second electrode by the variable power source. 画素部、補正回路、可変電源及び電流計を有し、
前記画素部に発光素子を有する画素が複数設けられており、
前記電流計によって、全ての前記発光素子の第１の電極と第２の電極の間に流れる電流の合計が測定され、
前記補正回路は、
デジタルビデオ信号を用いて、発光する前記発光素子の数を算出し、前記発光する発光素子の数と、前記測定した合計の電流値から、前記発光する各発光素子の電流の測定値を算出する手段と、
前記発光する各発光素子の電流の測定値と、前記発光する各発光素子の、第１の電極と第２の電極の間に流れる基準となる電流値の偏差を算出する手段と、
前記偏差から、前記発光する各発光素子の第１の電極と第２の電極の間に流れる電流が、前記基準となる電流値に近づくような、全ての前記発光素子が有する第１の電極と第２の電極の間の電圧値を算出する手段と、
全ての前記発光素子が有する第１の電極と第２の電極の間の電圧を、前記算出された電圧値に近づくように前記可変電源によって補正する手段とを有することを特徴とする発光装置。Pixel portion, have a correction circuit, a variable power supply and an ammeter,
A plurality of pixels having light emitting elements are provided in the pixel portion,
By the ammeter, the total current flowing between the first electrode and the second electrode of all the light emitting elements is measured,
The correction circuit includes:
The digital video signal is used to calculate the number of light emitting elements that emit light, and the measured value of the current of each light emitting element that emits light is calculated from the number of light emitting elements that emit light and the measured current value. Means,
Means for calculating a deviation between a measured current value of each light emitting element that emits light and a reference current value flowing between the first electrode and the second electrode of each light emitting element that emits light;
From the deviation, the first electrodes of all the light-emitting elements such that the current flowing between the first electrode and the second electrode of each light-emitting element that emits light approaches the reference current value; Means for calculating a voltage value between the second electrodes;
A light emitting apparatus comprising: means for correcting the voltage between the first electrode and the second electrode of all the light emitting elements by the variable power supply so as to approach the calculated voltage value. 画素部、補正回路、可変電源及び電流計を有し、
前記画素部に発光素子を有する画素が複数設けられており、
前記電流計によって、全ての前記発光素子の第１の電極と第２の電極の間に流れる電流の合計が測定され、
前記補正回路は、
デジタルビデオ信号を用いて、発光する前記発光素子の数を算出し、前記発光する発光素子の数と、前記測定した合計の電流値から、前記発光する各発光素子の電流の測定値を算出する手段と、
前記発光する各発光素子の電流の測定値が、前記発光する各発光素子の第１の電極と第２の電極の間に流れる基準となる電流値に近づくように、全ての前記発光素子が有する第１の電極と第２の電極の間の電圧を前記可変電源によって補正する手段とを有し、
前記発光する各発光素子の電流の測定値と前記基準となるの電流値の偏差が一定の幅で変化するごとに、前記発光する各発光素子の電流の測定値が一定の幅で変化することを特徴とする発光装置。Pixel portion, have a correction circuit, a variable power supply and an ammeter,
A plurality of pixels having light emitting elements are provided in the pixel portion,
By the ammeter, the total current flowing between the first electrode and the second electrode of all the light emitting elements is measured,
The correction circuit includes:
The digital video signal is used to calculate the number of light emitting elements that emit light, and the measured value of the current of each light emitting element that emits light is calculated from the number of light emitting elements that emit light and the measured current value. Means,
All the light-emitting elements have a measured value of the current of each light-emitting element that emits light so as to approach a reference current value that flows between the first electrode and the second electrode of each light-emitting element that emits light. Means for correcting the voltage between the first electrode and the second electrode by the variable power source,
Each time the deviation between the measured current value of each light emitting element emitting light and the reference current value changes with a constant width, the measured current value of each light emitting element emitting light changes with a constant width. A light emitting device characterized by the above. 画素部、補正回路、可変電源及び電流計を有し、
前記画素部に発光素子を有する画素が複数設けられており、
前記電流計によって、全ての前記発光素子の第１の電極と第２の電極の間に流れる電流の合計が測定され、
前記補正回路は、
デジタルビデオ信号を用いて、発光する前記発光素子の数を算出し、前記発光する発光素子の数と、前記測定した合計の電流値から、前記発光する各発光素子の電流の測定値を算出する手段と、
前記発光する各発光素子の電流の測定値と、前記発光する各発光素子の、第１の電極と第２の電極の間に流れる基準となる電流値の偏差を算出する手段と、
前記偏差から、前記発光する各発光素子の第１の電極と第２の電極の間に流れる電流が、前記基準となる電流値に近づくような、全ての前記発光素子が有する第１の電極と第２の電極の間の電圧値を算出する手段と、
全ての前記発光素子が有する第１の電極と第２の電極の間の電圧を、前記算出された電圧値に近づくように前記可変電源によって補正する手段とを有し、
前記偏差が一定の幅で変化するごとに、前記算出された電圧値が一定の大きさで変化することを特徴とする発光装置。Pixel portion, have a correction circuit, a variable power supply and an ammeter,
A plurality of pixels having light emitting elements are provided in the pixel portion,
By the ammeter, the total current flowing between the first electrode and the second electrode of all the light emitting elements is measured,
The correction circuit includes:
The digital video signal is used to calculate the number of light emitting elements that emit light, and the measured value of the current of each light emitting element that emits light is calculated from the number of light emitting elements that emit light and the measured current value. Means,
Means for calculating a deviation between a measured current value of each light emitting element that emits light and a reference current value flowing between the first electrode and the second electrode of each light emitting element that emits light;
From the deviation, the first electrodes of all the light-emitting elements such that the current flowing between the first electrode and the second electrode of each light-emitting element that emits light approaches the reference current value; Means for calculating a voltage value between the second electrodes;
Means for correcting the voltage between the first electrode and the second electrode of all the light emitting elements by the variable power supply so as to approach the calculated voltage value;
Each time the deviation changes with a certain width, the calculated voltage value changes with a certain magnitude. 請求項５乃至請求項８のいずれか１項において、前記可変電源、前記電流計及び前記補正回路が、前記発光素子の対応する色ごとに設けられていることを特徴とする発光装置。  9. The light-emitting device according to claim 5, wherein the variable power source, the ammeter, and the correction circuit are provided for each color corresponding to the light-emitting element. 請求項５乃至請求項９のいずれか１項において、前記発光素子が形成されている第１の基板上に、前記補正回路または電流計が形成されている第２の基板が取り付けられていることを特徴とする発光装置。  The second substrate on which the correction circuit or the ammeter is formed is attached to the first substrate on which the light emitting element is formed. A light emitting device characterized by the above. 請求項５乃至請求項９のいずれか１項において、前記発光素子が形成されている第１の基板上に、前記補正回路または電流計が形成されている第２の基板がＣＯＧ法により取り付けられていることを特徴とする発光装置。  The second substrate on which the correction circuit or the ammeter is formed is attached to the first substrate on which the light emitting element is formed by a COG method according to any one of claims 5 to 9. A light emitting device characterized by comprising: 請求項５乃至請求項９のいずれか１項において、前記発光素子が形成されている第１の基板上に、前記補正回路または電流計が形成されている第２の基板がワイヤボンディング法により取り付けられていることを特徴とする発光装置。  The second substrate on which the correction circuit or the ammeter is formed is attached to the first substrate on which the light emitting element is formed by a wire bonding method according to any one of claims 5 to 9. A light emitting device characterized in that the light emitting device is provided. 請求項１乃至請求項１２のいずれか１項において、前記発光装置を用いることを特徴とする電子機器。  The electronic device according to any one of claims 1 to 12, wherein the light-emitting device is used.
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Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003202836A (en) * 2001-12-28 2003-07-18 Pioneer Electronic Corp Device and method for driving display panel
JP2003202837A (en) * 2001-12-28 2003-07-18 Pioneer Electronic Corp Device and method for driving display panel
KR100490624B1 (en) 2003-02-10 2005-05-17 삼성에스디아이 주식회사 Image display apparatus
JP4534031B2 (en) * 2003-03-06 2010-09-01 グローバル・オーエルイーディー・テクノロジー・リミテッド・ライアビリティ・カンパニー Organic EL display device
JP2005099714A (en) 2003-08-29 2005-04-14 Seiko Epson Corp Electrooptical device, driving method of electrooptical device, and electronic equipment
JP2005107059A (en) 2003-09-29 2005-04-21 Sanyo Electric Co Ltd Display device
JP4747488B2 (en) * 2003-10-30 2011-08-17 セイコーエプソン株式会社 Electro-optical device, driving method of electro-optical device, and electronic apparatus
US7224332B2 (en) * 2003-11-25 2007-05-29 Eastman Kodak Company Method of aging compensation in an OLED display
GB0328584D0 (en) * 2003-12-10 2004-01-14 Koninkl Philips Electronics Nv Video data signal correction
JP4107240B2 (en) 2004-01-21 2008-06-25 セイコーエプソン株式会社 Driving circuit, electro-optical device, driving method of electro-optical device, and electronic apparatus
JP4622389B2 (en) * 2004-08-30 2011-02-02 ソニー株式会社 Display device and driving method thereof
JP2006113564A (en) * 2004-09-16 2006-04-27 Semiconductor Energy Lab Co Ltd Display device and driving method of the same
TWI648719B (en) * 2004-09-16 2019-01-21 日商半導體能源研究所股份有限公司 Display device and electronic device with pixels
CN100507993C (en) 2004-11-24 2009-07-01 株式会社半导体能源研究所 Light emitting system, and electronic equipment
KR20070101275A (en) * 2004-12-15 2007-10-16 이그니스 이노베이션 인크. Method and system for programming, calibrating and driving a light emitting device display
US7768487B2 (en) * 2004-12-31 2010-08-03 Lg. Display Co., Ltd. Driving system for an electro-luminescence display device
JP4847034B2 (en) * 2005-03-25 2011-12-28 廣輝電子股▲ふん▼有限公司 Active matrix organic light emitting diode drive control circuit capable of dynamically adjusting white balance and adjustment method thereof
JP2006276713A (en) * 2005-03-30 2006-10-12 Toshiba Matsushita Display Technology Co Ltd Power supply circuit for el display apparatus
WO2006121137A1 (en) * 2005-05-10 2006-11-16 Pioneer Corporation Display apparatus and display panel driving method
KR100703500B1 (en) 2005-08-01 2007-04-03 삼성에스디아이 주식회사 Data Driving Circuit and Driving Method of Light Emitting Display Using the same
KR100754131B1 (en) * 2005-08-01 2007-08-30 삼성에스디아이 주식회사 Data Driving Circuit and Driving Method of Organic Light Emitting Display Using the same
KR100703463B1 (en) * 2005-08-01 2007-04-03 삼성에스디아이 주식회사 Data Driving Circuit and Driving Method of Organic Light Emitting Display Using the same
KR100698699B1 (en) 2005-08-01 2007-03-23 삼성에스디아이 주식회사 Data Driving Circuit and Driving Method of Light Emitting Display Using the same
KR100703492B1 (en) * 2005-08-01 2007-04-03 삼성에스디아이 주식회사 Data Driving Circuit and Organic Light Emitting Display Using the same
JP2007065015A (en) * 2005-08-29 2007-03-15 Seiko Epson Corp Light emission control apparatus, light-emitting apparatus, and control method therefor
GB2430069A (en) * 2005-09-12 2007-03-14 Cambridge Display Tech Ltd Active matrix display drive control systems
JP5130634B2 (en) 2006-03-08 2013-01-30 ソニー株式会社 Self-luminous display device, electronic device, burn-in correction device, and program
JP2007310033A (en) * 2006-05-16 2007-11-29 Eastman Kodak Co Organic el display device and manufacturing method thereof
WO2008114407A1 (en) * 2007-03-20 2008-09-25 Pioneer Corporation Display device, and its drive method
KR100914118B1 (en) * 2007-04-24 2009-08-27 삼성모바일디스플레이주식회사 Organic Light Emitting Display and Driving Method Thereof
JP5034805B2 (en) * 2007-09-13 2012-09-26 ソニー株式会社 Display device and display driving method
DE102007062510A1 (en) * 2007-12-20 2009-07-02 Zf Friedrichshafen Ag Method for diagnosing an electronic display device
JP5465863B2 (en) * 2008-10-28 2014-04-09 エルジー ディスプレイ カンパニー リミテッド Image display device
JP2010243736A (en) * 2009-04-03 2010-10-28 Sony Corp Display device
JP5770726B2 (en) 2010-12-10 2015-08-26 株式会社Ｊｏｌｅｄ Display device and driving method thereof
JP2015049399A (en) * 2013-09-02 2015-03-16 凸版印刷株式会社 Display control unit
JP6763674B2 (en) * 2016-03-10 2020-09-30 住友化学株式会社 Manufacturing method of organic EL element

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02162915A (en) * 1988-12-16 1990-06-22 Rohm Co Ltd Window comparator
JPH0756496B2 (en) * 1990-04-16 1995-06-14 三洋電機株式会社 Window comparator
JPH09258687A (en) * 1996-03-18 1997-10-03 Canon Inc Image forming device and method for preventing change of light emitting characteristic
US6518962B2 (en) * 1997-03-12 2003-02-11 Seiko Epson Corporation Pixel circuit display apparatus and electronic apparatus equipped with current driving type light-emitting device
JP2000056732A (en) * 1998-08-12 2000-02-25 Tdk Corp Organic el display device
JP2000187466A (en) * 1998-12-24 2000-07-04 Mitsubishi Electric Corp Picture display device
JP2001324955A (en) * 2000-05-17 2001-11-22 Futaba Corp Brightness adjusting device and electric field discharge type display element

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