Source: http://www.google.com/patents/US6730966
Timestamp: 2015-01-28 00:11:24
Document Index: 782973082

Matched Legal Cases: ['Application No. 10', 'Application No. 10', 'Application No. 8', 'Application No. 8', 'Application No. 9', 'Application No. 10', 'art 2', 'art 2', 'application No. 09', 'application No. 09', 'application No. 09', 'application No. 09', 'application No. 09', 'application No. 09', 'Application No. 09', 'Application No. 09', 'Application No. 09', 'Application No. 09', 'Application No. 09', 'Application No. 09', 'Application No. 09', 'Application No. 10', 'art 2']

Patent US6730966 - EL display using a semiconductor thin film transistor - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsThere is provided an electric device which can prevent a deterioration in a frequency characteristic due to a large electric power external switch connected to an opposite electrode and can prevent a decrease in the number of gradations. The electric device includes a plurality of source signal lines,...http://www.google.com/patents/US6730966?utm_source=gb-gplus-sharePatent US6730966 - EL display using a semiconductor thin film transistorAdvanced Patent SearchPublication numberUS6730966 B2Publication typeGrantApplication numberUS 09/725,798Publication dateMay 4, 2004Filing dateNov 29, 2000Priority dateNov 30, 1999Fee statusPaidAlso published asCN1304182A, CN102176303A, CN102176303B, EP1107220A2, EP1107220A3, EP1107220B1, US6982462, US7525119, US8017948, US20010002703, US20050001215, US20060033161, US20090218573, US20120061674Publication number09725798, 725798, US 6730966 B2, US 6730966B2, US-B2-6730966, US6730966 B2, US6730966B2InventorsJun KoyamaOriginal AssigneeSemiconductor Energy Laboratory Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (60), Non-Patent Citations (43), Referenced by (94), Classifications (26), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetEL display using a semiconductor thin film transistorUS 6730966 B2Abstract There is provided an electric device which can prevent a deterioration in a frequency characteristic due to a large electric power external switch connected to an opposite electrode and can prevent a decrease in the number of gradations. The electric device includes a plurality of source signal lines, a plurality of gate signal lines, a plurality of power source supply lines, a plurality of power source control lines, and a plurality of pixels. Each of the plurality of pixels includes a switching TFT, an EL driving TFT, a power source controlling TFT, and an EL element, and the power source controlling TFT controls a potential difference between a cathode and an anode of the EL element.
The EL display is a self-light-emitting type unlike a liquid crystal display device. The EL element is constituted in such a manner that an EL layer is sandwiched between a pair of electrodes. However, the EL layer normally has a lamination structure. Typically, the lamination structure of a �hole transport layer/a light emitting/an electron transport layer� proposed by Tang et al. of the Eastman Kodak Company can be cited. This structure has a very high light-emitting efficiency, and this structure is adopted in almost all the EL displays which are currently subjected to research and development.
First, a gate signal is inputted to the gate signal line G1, and all switching TFTs 1701 connected to the gate signal line G1 are turned on. A digital data signal is sequentially inputted to the source signal line (S1 to Sn). The opposite potential is kept equal to the power source potential of the power source supply line (V1 to Vn). The digital data signal includes information of �0� or �1�. The digital data signal of �0� or �1� means a signal having a voltage of Hi or Lo, respectively.
In the case where the digital data signal includes the information of �0�, the EL driving TFT 1702 is turned off, and the EL element 1703 does not emit light. On the contrary, in the case where the digital data signal includes the information of �1�, the EL driving TFT 1702 is turned on. As a result, the pixel electrode of the EL element 1703 is held the power source potential, and the EL element 1703 emits light. Like this, according to the information which the digital data signal includes, the emission or non-emission state of the EL element is selected, and every pixel performs a display at the same time, so that a picture image is formed. A period in which a pixel performs a display is referred to as the display period.
SUMMARY OF THE INVENTION The present invention has an object to provide means for solving the problems associating with an enlargement of an EL display device. That is, an object of the present invention is to remove limitation of a current value due to an external switch for controlling an EL driver voltage, to prevent a deterioration in the frequency characteristic of an EL driver circuit due to the external switch for controlling the EL driver voltage, and to prevent a decrease in the number of gradations.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a circuit structure of an EL display of the present invention;
First, in the write-in period, the power source controlling TFT 112 is in an off state, and an EL driver voltage is held 0 V. Note that although the EL driver voltage can have a minute value by a leak current caused by an off current (drain current flowing although a TFT as a switch is in an off state) of the EL driving TFT 109 or the power source controlling TFT 112, there is no problem if the value is so small that the EL element does not emit light. Then a gate signal is inputted to the gate signal line G1 and all switching TFTs 105 connected to the gate signal line G1 are turned on. Then digital data signals are inputted to the source signal lines (S1 to Sn). The digital data signal includes information of �0� or �1�. The digital data signal of �0� or �1� means a signal having a voltage of Hi or Lo.
In the case where the digital data signal includes information of �0�, the EL driving TFT 109 is turned off, and the EL element 111 does not emit light. On the contrary, the digital data signal includes information of �1�, the EL driving TFT 109 is turned on. At this time, since the power source controlling TFT 112 is also in the on state, the pixel electrode of the EL element 111 is kept at the same level as a power source potential, and the EL element 111 emits light. Like this, according to the information of the digital data signal, the emission or non-emission state of the EL element is selected, and every pixel performs a display at the same time. Every pixel performs a display, so that a picture image is formed. A period in which a pixel performs a display is referred to as the display period.
Note that there are several types of PPV organic EL materials, and materials recorded in Shenk, H., Becker, H., Gelsen, O., Kluge, E., Kreuder, W., and Spreitzer, H., �Polymers for Light Emitting Diodes�, Euro Display Proceedings, 1999, pp. 33-37, and in Japanese Patent Application Laid-open No. Hei 10-92576, for example, may be used.
The gate electrode can be made of a conductive film of a single-layer, however, preferably, a lamination film, such as two-layer or three-layer film is used when necessary. A known conductive film can be used as the material of the gate electrode. Specifically, the film which can be used are films made of an element selected from the group consisting of tantalum (Ta), titanium (Ti), molybdenum (Mo), tungsten (W), chrome (Cr), and silicon (Si) having conductivity; a film of a nitride of the aforementioned elements (tantalum nitride film, tungsten nitride film, or titanium nitride film representatively); an alloy film of a combination of the aforementioned elements (Mo�W alloy or Mo�Ta alloy representatively); or, a silicide film of the aforementioned elements (tungsten silicide film or titanium silicide film representatively). They can have a single-layer structure or a lamination-layer structure, of course.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS4356429Jul 17, 1980Oct 26, 1982Eastman Kodak CompanyHole injecting zone comprising porphyrinic compound between anode and luminescent zoneUS4539507Mar 25, 1983Sep 3, 1985Eastman Kodak CompanyCharge transfer compoundsUS4720432Feb 11, 1987Jan 19, 1988Eastman Kodak CompanyElectroluminescent device with organic luminescent mediumUS4769292Oct 14, 1987Sep 6, 1988Eastman Kodak CompanyElectroluminescent device with modified thin film luminescent zoneUS4885211Feb 11, 1987Dec 5, 1989Eastman Kodak CompanyContaining magnesium and metal with higher work function; stabilityUS4950950May 18, 1989Aug 21, 1990Eastman Kodak CompanyElectroluminescent device with silazane-containing luminescent zoneUS5047687Jul 26, 1990Sep 10, 1991Eastman Kodak CompanyOrganic electroluminescent device with stabilized cathodeUS5059861Jul 26, 1990Oct 22, 1991Eastman Kodak CompanyOrganic electroluminescent device with stabilizing cathode capping layerUS5059862Jul 26, 1990Oct 22, 1991Eastman Kodak CompanyHigh stability; compressing aluminum and magnesiumUS5061617Dec 7, 1990Oct 29, 1991Eastman Kodak CompanyProcess for the preparation of high chloride tabular grain emulsionsUS5073446Jul 26, 1990Dec 17, 1991Eastman Kodak CompanyProtected from dark spot formationUS5151629Aug 1, 1991Sep 29, 1992Eastman Kodak CompanyBlue emitting internal junction organic electroluminescent device (I)US5247190Apr 18, 1990Sep 21, 1993Cambridge Research And Innovation LimitedThin semiconductor between contactorsUS5294869Dec 30, 1991Mar 15, 1994Eastman Kodak CompanyOrganic electroluminescent multicolor image display deviceUS5294870Dec 30, 1991Mar 15, 1994Eastman Kodak CompanyOrganic electroluminescent multicolor image display deviceUS5399502May 5, 1993Mar 21, 1995Cambridge Display Technology LimitedMethod of manufacturing of electrolumineschent devicesUS5641991Aug 31, 1995Jun 24, 1997Nec CorporationSemiconductor device containing conductor plug that can reduce contact resistanceUS5714968Aug 8, 1995Feb 3, 1998Nec CorporationCurrent-dependent light-emitting element drive circuit for use in active matrix display deviceUS5839456Aug 20, 1997Nov 24, 1998Lg Semicon Co., Ltd.Wafer wet treating apparatusUS5882761Nov 19, 1996Mar 16, 1999Pioneer Electronic CorporationElectro-luminescence) element suitably used for a display device, a light emission element, etc.US5990629Jan 26, 1998Nov 23, 1999Casio Computer Co., Ltd.Electroluminescent display device and a driving method thereofUS6011529Apr 15, 1999Jan 4, 2000Nec CorporationCurrent-dependent light-emitting element drive circuit for use in active matrix display deviceUS6087245Feb 11, 1998Jul 11, 2000Semiconductor Energy Laboratory Co., Ltd.Method of gettering crystallization catalyst for forming a silicon filmUS6100860 *May 4, 1998Aug 8, 2000Tdk CorporationImage display deviceUS6111270 *Apr 27, 1998Aug 29, 2000Motorola, Inc.Light-emitting apparatus and method of fabricationUS6165824Mar 3, 1998Dec 26, 2000Semiconductor Energy Laboratory Co., Ltd.Method of manufacturing a semiconductor deviceUS6229506Apr 22, 1998May 8, 2001Sarnoff CorporationActive matrix light emitting diode pixel structure and concomitant methodUS6236064Jun 6, 1995May 22, 2001Semiconductor Energy Laboratory Co., Ltd.Electro-optical deviceUS6246180 *Jan 31, 2000Jun 12, 2001Nec CorporationOrganic el display device having an improved image qualityUS6246384Mar 23, 1999Jun 12, 2001Sanyo Electric Co., Ltd.Electroluminescence display apparatusUS6281634 *Nov 30, 1999Aug 28, 2001Sanyo Electric Co., Ltd.Color electroluminescence display deviceUS6307322 *Dec 28, 1999Oct 23, 2001Sarnoff CorporationThin-film transistor circuitry with reduced sensitivity to variance in transistor threshold voltageUS6366025Feb 24, 2000Apr 2, 2002Sanyo Electric Co., Ltd.Electroluminescence display apparatusUS6433485Apr 5, 2001Aug 13, 2002Industrial Technology Research InstituteApparatus and method of testing an organic light emitting diode arrayUS6440877Jun 27, 2000Aug 27, 2002Semiconductor Energy Laboratory Co., Ltd.Method of manufacturing an electro-optical deviceUS6528950Apr 3, 2001Mar 4, 2003Semiconductor Energy Laboratory Co., Ltd.Electronic device and driving methodUS20020196389May 31, 2002Dec 26, 2002Semiconductor Energy Laboratory Co., Ltd.Light emitting device and method of driving the sameUS20030016190Sep 20, 2002Jan 23, 2003Canon Kabushiki KaishaDrive circuit to be used in active matrix type light-emitting element arrayEP0717445A2Dec 5, 1995Jun 19, 1996Eastman Kodak CompanyAn electroluminescent device having an organic electroluminescent layerEP0776147A1Nov 20, 1996May 28, 1997Pioneer Electronic CorporationOrganic EL elementEP0778556A2May 28, 1993Jun 11, 1997David Sarnoff Research Center, Inc.Active matrix electroluminescent display and method of operationEP1061497A1Jun 19, 2000Dec 20, 2000Sony CorporationImage display apparatus including current controlled light emitting elements and driving method thereforGB2336459A Title not availableJP2000221942A Title not availableJP2000235370A Title not availableJP2000347621A Title not availableJP2001042822A Title not availableJP2001060076A Title not availableJPH0878159A Title not availableJPH1092576A Title not availableJPH08241048A Title not availableJPH09148066A Title not availableJPH10189525A Title not availableJPH10247735A Title not availableJPH10312173A Title not availableWO1990013148A1Apr 18, 1990Oct 21, 1990Cambridge Capital ManagementElectroluminescent devicesWO1998048403A1Apr 23, 1998Oct 29, 1998Sarnoff CorpActive matrix light emitting diode pixel structure and methodWO1999042983A1Feb 5, 1999Aug 26, 1999Cambridge Display TechElectroluminescent devicesWO1999049989A1Mar 25, 1999Oct 7, 1999Univ Ohio StateVoltage controlled color variable light-emitting devices featuring multilayers of discrete polymer layers and molecular/oligomer layersWO1999053472A1Apr 14, 1999Oct 21, 1999Jeremy Henley BurroughesDisplay control device with modes for reduced power consumption* Cited by examinerNon-Patent CitationsReference12000-221942 English abstract.22000-235370 English abstract.32000-347621 English abstract.42001-42822 English abstract.5Baldo, M.A. et al, �Highly Efficient Phosphorescent Emission from Organic Electroluminescent Devices,� Nature, vol. 395, pp. 151-154, Sep. 10, (1998).6Baldo, M.A. et al, �Very High-Efficiency Green Organic Light-Emitting Devices Based on Electrophosphorescence,� Applied Physics Letters, vol. 75, No. 1, pp. 4-6, Jul. 5, (1999).7Baldo, M.A. et al, 'Highly Efficient Phosphorescent Emission from Organic Electroluminescent Devices,' Nature, vol. 395, pp. 151-154, Sep. 10, (1998).8Baldo, M.A. et al, 'Very High-Efficiency Green Organic Light-Emitting Devices Based on Electrophosphorescence,' Applied Physics Letters, vol. 75, No. 1, pp. 4-6, Jul. 5, (1999).9English abstract re Japanese Patent Application No. 10-189525, published Jul. 21, 1998.10English abstract re Japanese Patent Application No. 10-247735, published Sep. 14, 1998.11English abstract re Japanese Patent Application No. 8-078519, published Mar. 22, 1996.12English abstract re Japanese Patent Application No. 8-241048, published Sep. 17, 1996.13English abstract re Japanese Patent Application No. 9-148066, published Jun. 6, 1997.14English abstract re Japanese Patent Application No. JP 10-214060, published Aug. 11, 1998.15English abstract re Japanese Patent Application No. JP 10-232649, published Sep. 2, 1998.16English abstract re Japanese re Japanese Patent Application No. 10-092576, published Apr. 11, 1998.17European Search Report re application EP 00 12 6217 dated Jul. 12, 2002.18Full English translation re Japanese Patent Application No. JP 10-312173, published Nov. 24, 1998.19JP 2000-347621 full English translation.20JP 2001-42822 full English trnslation.21JP 2001-60076 English abstract.22Kanagu et al., "A 31-in. -Diagonal Full-Color Surface-Dischange ac Plasma Display Panel," SID 92 DIGEST, pp. 713-716, May 17, 1992.23Kawahara et al., "Simulation of Motion Picture Disturbance for AC-PDP Modeling Virtual Pixel on Retina," IEICE Transactions on Electronics, vol. E81-C, No. 11, pp. 1733-1739, Nov. 11, 1998.24Schenk, H. et al, "Polymers for Light Emitting Diodes," EuroDisplay '99, Proceedings of the 19th International Display Research Conference, Berlin, Germany, Sep. 6-9, 1999, pp. 37-37.25Tsutsui, T. et al, �Electroluminescence in Organic Thin Films,� Photochemical Processes in Organized Molecular Systems, pp. 437-450, Elsevier Science Publishers, Tokyo, (1991).26Tsutsui, T. et al, �High Quantum Efficiency in Organic Light-Emitting Devices with Iridium-Complex as a Triplet Emissive Center,� Japanese Journal of Applied Physics, vol. 38, part 2, No., 12B, pp. L1502-L1504, Dec. 15, (1999).27Tsutsui, T. et al, 'Electroluminescence in Organic Thin Films,' Photochemical Processes in Organized Molecular Systems, pp. 437-450, Elsevier Science Publishers, Tokyo, (1991).28Tsutsui, T. et al, 'High Quantum Efficiency in Organic Light-Emitting Devices with Iridium-Complex as a Triplet Emissive Center,' Japanese Journal of Applied Physics, vol. 38, part 2, No., 12B, pp. L1502-L1504, Dec. 15, (1999).29U.S. application No. 09/532,166, (pending) including specification, claims, abstract and drawings.30U.S. application No. 09/692,713, (pending) to Koyama, filed Oct. 19, 2000, including specification, claims, abstract, drawings and PTO filing receipt.31U.S. application No. 09/692,753, (pending) to Koyama et al, filed Oct. 19, 2000, including specification, claims, abstract, drawings, preliminary amendment A and PTO filing receipt.32U.S. application No. 09/707,054, (pending) to Yamazaki et al, filed Nov. 6, 2000, including specification, claims, abstract, drawings and preliminary amendment A.33U.S. application No. 09/724,387, (pending) to Inukai, filed Nov. 28, 2000, including specification, claims, abstract, drawings and PTO filing receipt.34U.S. application No. 09/747,646, (pending) to Inukai, filed Dec. 22, 2000, including specification, claims, abstract, drawings and PTO filing receipt.35US Patent Application No. 09/724,387, (pending) to Inukai including PTO filing receipt specification, claims, abstract, and drawings.36US Patent Application No. 09/747,646 (pending) to Inukai including PTO filing receipt specification, claims, abstract, and drawings.37US Patent Application No. 09/836,719 (pending) to Kimura et al. including PTO filing receipt specification, claims, abstract, and drawings.38US Patent Application No. 09/840,584 (pending) to Inukai including PTO filing receipt specification, claims, abstract, and drawings.39US Patent Application No. 09/841,098 including specification, claims, abstract, and drawings.40US Patent Application No. 09/886,148 (pending) to Inukai including PTO filing receipt specification, claims, abstract, and drawings.41US Patent Application No. 09/992,569 (pending) to Kimura including PTO filing receipt specification, claims, abstract, and drawings.42US Patent Application No. 10/079,072 (pending) to Kimura including PTO filing receipt specification, claims, abstract, and drawings.43Zou, D. et al, "Improvement of Current-Voltage Characteristics in Organic Light Emitting Diodes by Application of Reversed-Bias Voltage," Jpn. Appl. Phys., vol. 37, Part 2, No. 11B pp. L1406-L1408, Nov. 15, 1998.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS6864637 *Jun 27, 2003Mar 8, 2005Lg. Phillips Lcd Co., Ltd.Organic electro luminescence device and method for driving the sameUS6975142Apr 17, 2002Dec 13, 2005Semiconductor Energy Laboratory Co., Ltd.Semiconductor deviceUS7030847Nov 6, 2001Apr 18, 2006Semiconductor Energy Laboratory Co., Ltd.Light emitting device and electronic deviceUS7061451 *Feb 20, 2002Jun 13, 2006Semiconductor Energy Laboratory Co., Ltd,Light emitting device and electronic deviceUS7084668Jun 1, 2004Aug 1, 2006Semiconductor Energy Laboratory Co., Ltd.Semiconductor deviceUS7113155Jul 15, 2003Sep 26, 2006Semiconductor Energy Laboratory Co., Ltd.Electronic device with a source region and a drain region of a reset transistor and driving method thereofUS7167169 *Nov 20, 2002Jan 23, 2007Toppoly Optoelectronics CorporationActive matrix oled voltage drive pixel circuitUS7173586Mar 24, 2004Feb 6, 2007Semiconductor Energy Laboratory Co., Ltd.Element substrate and a light emitting deviceUS7184014Oct 4, 2001Feb 27, 2007Semiconductor Energy Laboratory Co., Ltd.Liquid crystal display deviceUS7224339Aug 8, 2001May 29, 2007Semiconductor Energy Laboratory Co., Ltd.Liquid crystal display device, method of driving the same, and method of driving a portable information device having the liquid crystal display deviceUS7227542Jun 4, 2004Jun 5, 2007Semiconductor Energy Laboratory Co., Ltd.Liquid crystal display device and method of driving the sameUS7250720Apr 20, 2004Jul 31, 2007Semiconductor Energy Laboratory Co., Ltd.Display deviceUS7250927Aug 2, 2001Jul 31, 2007Semiconductor Energy Laboratory Co., Ltd.Portable information apparatus and method of driving the sameUS7288420May 30, 2000Oct 30, 2007Semiconductor Energy Laboratory Co., Ltd.Method for manufacturing an electro-optical deviceUS7301276 *Mar 23, 2001Nov 27, 2007Semiconductor Energy Laboratory Co., Ltd.Light emitting apparatus and method of manufacturing the sameUS7332742Jun 28, 2005Feb 19, 2008Semiconductor Energy Laboratory Co., Ltd.Display device and electronic apparatusUS7339317Jun 4, 2001Mar 4, 2008Semiconductor Energy Laboratory Co., Ltd.Enables a color display with good color balance; electric appliance which has a display portion with high image qualityUS7372199Mar 26, 2007May 13, 2008Semiconductor Energy Laboratory Co., Ltd.Light emitting device and image playback device having triplet and singlet compounds in electroluminescent layerUS7388562Jun 28, 2004Jun 17, 2008Semiconductor Energy Laboratory Co., Ltd.Display device and driving method of the sameUS7400087Apr 14, 2005Jul 15, 2008Semiconductor Energy Laboratory Co., Ltd.Light-emitting device having triplet and singlet compound in light-emitting layersUS7425937Aug 4, 2003Sep 16, 2008Semiconductor Energy Laboratory Co., Ltd.Device and driving method thereofUS7446742Jan 25, 2005Nov 4, 2008Semiconductor Energy Laboratory Co., Ltd.Light emitting deviceUS7463224Jun 18, 2004Dec 9, 2008Sanyo Electric Co., Ltd.Light emitting device and display deviceUS7471271Jun 4, 2004Dec 30, 2008Semiconductor Energy Laboratory Co., Ltd.Display device and driving method of the sameUS7518592Jan 12, 2007Apr 14, 2009Semiconductor Energy Laboratory Co., Ltd.Liquid crystal display deviceUS7525119 *Oct 13, 2005Apr 28, 2009Semiconductor Energy Laboratory Co., Ltd.Light emitting display device using thin film transistors and electro-luminescence elementUS7557780Sep 15, 2006Jul 7, 2009Semiconductor Energy Laboratory Co., Ltd.Electronic device and driving method thereofUS7579203Apr 25, 2001Aug 25, 2009Semiconductor Energy Laboratory Co., Ltd.Light emitting deviceUS7586478Nov 10, 2005Sep 8, 2009Semiconductor Energy Laboratory Co., Ltd.Semiconductor deviceUS7595775Dec 17, 2004Sep 29, 2009Semiconductor Energy Laboratory Co., Ltd.Light emitting display device with reverse biasing circuitUS7602385Nov 18, 2002Oct 13, 2009Semiconductor Energy Laboratory Co., Ltd.Display device and display system using the sameUS7612746May 26, 2006Nov 3, 2009Semiconductor Energy Laboratory Co., Ltd.Light emitting device and electronic deviceUS7649516Aug 25, 2005Jan 19, 2010Semiconductor Energy Laboratory Co., Ltd.Light emitting deviceUS7663578Jan 5, 2007Feb 16, 2010Semiconductor Energy Laboratory Co., Ltd.Semiconductor device, display device and electronic deviceUS7683860Nov 30, 2004Mar 23, 2010Semiconductor Energy Laboratory Co., Ltd.Display device, driving method thereof, and element substrateUS7701134 *Mar 9, 2005Apr 20, 2010Semiconductor Energy Laboratory Co., Ltd.Active matrix display device with improved operating performanceUS7714818Feb 1, 2007May 11, 2010Semiconductor Energy Laboratory Co., Ltd.Element substrate and a light emitting deviceUS7742024Oct 16, 2006Jun 22, 2010Semiconductor Energy Laboratory Co., Ltd.Element substrate and light emitting deviceUS7800558 *Jun 12, 2003Sep 21, 2010Cambridge Display Technology LimitedDisplay driver circuits for electroluminescent displays, using constant current generatorsUS7808008Jun 19, 2008Oct 5, 2010Semiconductor Energy Laboratory Co., Ltd.Display device and driving method thereofUS7817116Apr 14, 2006Oct 19, 2010Semiconductor Energy Laboratory Co., Ltd.Light emitting device and electronic deviceUS7834824Jun 11, 2003Nov 16, 2010Cambridge Display Technology LimitedDisplay driver circuitsUS7864140 *Feb 9, 2005Jan 4, 2011Samsung Mobile Display Co., Ltd.Light-emitting displayUS7903079Sep 2, 2009Mar 8, 2011Semiconductor Energy Laboratory Co., Ltd.Semiconductor deviceUS7915808Mar 17, 2008Mar 29, 2011Semiconductor Energy Laboratory Co., Ltd.Light emitting device including EL elements for emitting lights of different colorsUS7915830Aug 20, 2009Mar 29, 2011Semiconductor Energy Laboratory Co., Ltd.Semiconductor deviceUS7928938Apr 5, 2006Apr 19, 2011Semiconductor Energy Laboratory Co., Ltd.Semiconductor device including memory circuit, display device and electronic apparatusUS7952101Jul 18, 2008May 31, 2011Semiconductor Energy Laboratory Co., Ltd.Light emitting device and method of manufacturing the sameUS7994496Apr 24, 2008Aug 9, 2011Semiconductor Energy Laboratory Co., Ltd.Light emitting element and manufacturing method thereof, and light emitting device using the light emitting elementUS8008652Sep 9, 2005Aug 30, 2011Semiconductor Energy Laboratory Co., Ltd.Light emitting deviceUS8017948 *Apr 24, 2009Sep 13, 2011Semiconductor Energy Laboratory Co., Ltd.Electric deviceUS8018403Jul 6, 2007Sep 13, 2011Semiconductor Energy Laboratory Co., Ltd.Display deviceUS8022406Jan 23, 2009Sep 20, 2011Semiconductor Energy Laboratory Co., Ltd.Light emitting deviceUS8026877Mar 24, 2004Sep 27, 2011Semiconductor Energy Laboratory Co., Ltd.Element substrate and light-emitting deviceUS8039288Oct 3, 2006Oct 18, 2011Semiconductor Energy Laboratory Co., Ltd.Semiconductor device and manufacturing method thereofUS8049418Apr 11, 2008Nov 1, 2011Semiconductor Energy Laboratory Co., Ltd.Light emitting device comprising triplet compound in electroluminescent layerUS8059068Apr 27, 2007Nov 15, 2011Semiconductor Energy Laboratory Co., Ltd.Display device and method for driving the sameUS8134149May 16, 2011Mar 13, 2012Semiconductor Energy Laboratory Co., Ltd.Organic light emitting deviceUS8139000Oct 18, 2010Mar 20, 2012Semiconductor Energy Laboratory Co., Ltd.Light emitting device and electronic deviceUS8139001Aug 17, 2011Mar 20, 2012Semiconductor Energy Laboratory Co., Ltd.Display deviceUS8237186Sep 1, 2009Aug 7, 2012Semiconductor Energy Laboratory Co., Ltd.Electro-optical deviceUS8242683Dec 30, 2008Aug 14, 2012Semiconductor Energy Laboratory Co., Ltd.Electronic display including a light-emitting element and a color filter sandwiched between two polarizersUS8242986 *Nov 12, 2002Aug 14, 2012Semiconductor Energy Laboratory Co., Ltd.Display device and method for driving the sameUS8284130Aug 17, 2007Oct 9, 2012Semiconductor Energy Laboratory Co., Ltd.Display deviceUS8284151Mar 3, 2011Oct 9, 2012Semiconductor Energy Laboratory Co., Ltd.Semiconductor deviceUS8304985 *Mar 11, 2011Nov 6, 2012Semiconductor Energy Laboratory Co., Ltd.Light emitting device having singlet and triplet compounds with different emission colorsUS8330680Dec 10, 2010Dec 11, 2012Samsung Display Co., Ltd.Light-emitting displayUS8338835Sep 8, 2010Dec 25, 2012Semiconductor Energy Laboratory Co., Ltd.Display device and driving method thereofUS8339339Dec 21, 2001Dec 25, 2012Semiconductor Energy Laboratory Co., Ltd.Light emitting device, method of driving the same, and electronic deviceUS8344972Mar 17, 2012Jan 1, 2013Semiconductor Energy Laboratory Co., Ltd.Light emitting device and electronic deviceUS8378578Mar 23, 2011Feb 19, 2013Semiconductor Energy Laboratory Co., Ltd.Semiconductor deviceUS8415660Mar 9, 2012Apr 9, 2013Semiconductor Energy Laboratory Co., Ltd.Light emitting deviceUS8415876Oct 11, 2011Apr 9, 2013Semiconductor Energy Laboratory Co., Ltd.Light emitting device and display comprising light emitting deviceUS8466482May 16, 2011Jun 18, 2013Semiconductor Energy Laboratory Co., Ltd.Semiconductor device and manufacturing method thereofUS8508443Jul 23, 2012Aug 13, 2013Semiconductor Energy Laboratory Co., Ltd.Display device and method for driving the sameUS8514151Jul 6, 2009Aug 20, 2013Semiconductor Energy Laboratory Co., Ltd.Electronic device and driving method thereofUS8541804Aug 1, 2012Sep 24, 2013Semiconductor Energy Laboratory Co., Ltd.Electro-optical deviceUS8552933Jun 28, 2004Oct 8, 2013Semiconductor Energy Laboratory Co., Ltd.Light emitting device and driving method of the sameUS8564509Jan 16, 2007Oct 22, 2013Samsung Display Co., Ltd.Display device and driving method thereofUS8604704Feb 13, 2013Dec 10, 2013Semiconductor Energy Laboratory Co., Ltd.Semiconductor deviceUS8633919Apr 4, 2006Jan 21, 2014Semiconductor Energy Laboratory Co., Ltd.Display device, driving method of the display device, and electronic deviceUS8643003Aug 29, 2011Feb 4, 2014Semiconductor Energy Laboratory Co., Ltd.Light emitting deviceUS8659523Sep 23, 2011Feb 25, 2014Semiconductor Energy Laboratory Co., Ltd.Element substrate and light-emitting deviceUS8659532Sep 14, 2012Feb 25, 2014Semiconductor Energy Laboratory Co., Ltd.Semiconductor deviceUS8674348Apr 12, 2012Mar 18, 2014Semiconductor Energy Laboratory Co., Ltd.Organic light emitting element and display device using the elementUS8674599Sep 13, 2012Mar 18, 2014Semiconductor Energy Laboratory Co., Ltd.Light emitting device having fluorescence and phosphoresence compoundUS8674908Mar 7, 2012Mar 18, 2014Semiconductor Energy Laboratory Co., Ltd.Display deviceUS8711065Dec 26, 2012Apr 29, 2014Semiconductor Energy Laboratory Co., Ltd.Light emitting device and electronic deviceUS8736520Jul 14, 2008May 27, 2014Semiconductor Energy Laboratory Co., Ltd.Electro-optical deviceUS8760376Mar 19, 2007Jun 24, 2014Semiconductor Energy Laboratory Co., Ltd.Liquid crystal display device, method of driving the same, and method of driving a portable information device having the liquid crystal display deviceUS8796670Dec 17, 2004Aug 5, 2014Semiconductor Energy Laboratory Co., Ltd.Light-emitting elementUS8797371Dec 19, 2011Aug 5, 2014Semiconductor Energy Laboratory Co., Ltd.Method for driving field sequential liquid crystal display deviceUS8816359Nov 27, 2012Aug 26, 2014Semiconductor Energy Laboratory Co., Ltd.Display device and driving method thereofUS20110156580 *Mar 11, 2011Jun 30, 2011Semiconductor Energy Laboratory Co., Ltd.Light emitting device* Cited by examinerClassifications U.S. Classification257/350, 257/59, 257/72International ClassificationH01L27/32, G09G3/32, G09G3/30, G09G3/20Cooperative ClassificationG09G2300/0426, G09G3/3291, H01L51/5253, G09G2300/0809, H01L51/5231, G09G3/3275, G09G3/2022, G09G2300/0842, H01L27/1214, G09G2300/0417, H01L27/12, G09G2320/0233, G09G3/2018, G09G2300/0861, H01L27/3244European ClassificationG09G3/32A14, H01L27/12, H01L27/12T, G09G3/32A14VLegal EventsDateCodeEventDescriptionSep 19, 2011FPAYFee paymentYear of fee payment: 8Sep 20, 2007FPAYFee paymentYear of fee payment: 4Nov 29, 2000ASAssignmentOwner name: SEMICONDUCTOR ENERGY LABORATORY CO., LTD., JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KOYAMA, JUN;REEL/FRAME:011316/0266Effective date: 20001030Owner name: SEMICONDUCTOR ENERGY LABORATORY CO., LTD. 398, HASFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KOYAMA, JUN /AR;REEL/FRAME:011316/0266RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services