EP0597226A1 - Gegentaktadressierung einer Matrix - Google Patents

Gegentaktadressierung einer Matrix Download PDF

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Publication number
EP0597226A1
EP0597226A1 EP93115480A EP93115480A EP0597226A1 EP 0597226 A1 EP0597226 A1 EP 0597226A1 EP 93115480 A EP93115480 A EP 93115480A EP 93115480 A EP93115480 A EP 93115480A EP 0597226 A1 EP0597226 A1 EP 0597226A1
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EP
European Patent Office
Prior art keywords
push
pull
column
columns
logic
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.)
Withdrawn
Application number
EP93115480A
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English (en)
French (fr)
Inventor
Thomas J. Walczak
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.)
Motorola Solutions Inc
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Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of EP0597226A1 publication Critical patent/EP0597226A1/de
Withdrawn legal-status Critical Current

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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]
    • G09G3/3216—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 a passive matrix
    • 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]
    • G09G3/3266—Details of drivers for scan electrodes
    • 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]
    • G09G3/3275—Details of drivers for data electrodes
    • G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • 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]

Definitions

  • the present invention pertains to the addressing of matrixes and more specifically to matrixes and driving circuitry with reduced connections.
  • a matrix type array of components is utilized in a variety of electronic devices, such as displays and memories.
  • the components are arranged into rows and columns with each row and each column having a separate input.
  • the row and column containing the component is energized.
  • the specific component at the junction of the row and column, which is the selected component is the only component that receives the correct energization to cause the component to be turned on.
  • the major problem with the matrix type array of components is the large number of external pads, or input terminals, that must be provided. Each row and each column has an individual, separate external pad.
  • the matrix type array being utilized has a large number of rows and columns, the number of external pads which are required becomes almost prohibitive.
  • the number of rows could be 128 and the number of columns could be 240.
  • This means 128 + 240 368 connections must be made to external control circuitry.
  • the LEDs are generally fabricated on a GaAs substrate with a pitch of approximately 20 microns. In this specific instance the area of the LED matrix type array is 4.8 X 2.56 mils without the interconnects.
  • the addition of 368 external pads increases the array area by a factor of approximately 2.3, which significantly increases the cost of the array. Further, the large number of connections to the array makes manufacturability of a complete display module difficult and reduces reliability of the finished product.
  • a push-pull addressable matrix including a substrate, a plurality of electrical components formed on the substrate, each component including a first and a second electrode, and the components being divide into rows and columns, and rows and columns of connecting conductors positioned on the substrate to correspond, one each, with the rows and columns of components and to couple to each first and second electrode of the components to provide an addressable matrix, with all of the first electrodes in each alternate column of the plurality of components being connected to a corresponding alternate column of the connecting conductors and all of the second electrodes of each interspersed column of the plurality of components being connected to the corresponding interspersed column of the connecting conductors, each of the remaining first and second electrodes being connected to a corresponding row of connecting conductors, and.each alternate column of connecting conductors being connected to a different interspersed column of connecting conductors.
  • FIG. 1 a matrix type array of diodes, constructed in accordance with the prior art, is illustrated.
  • the diodes are arranged in rows and columns, with all of the anodes of the diodes in each row being connected together and all of the cathodes of the diodes in each column connected together.
  • the matrix illustrated there are five rows and four columns with each row and each column having an external connecting pad, for a total of nine external connecting pads. Nine external connecting pads are necessary to address each diode in the array of diodes.
  • Matrix 10 includes twenty light emitting diodes formed on a single substrate and arranged into five rows and four columns. Rows of connecting conductors, designated 12 - 16, are positioned on the substrate to correspond, one each, with the diode rows and columns of connecting conductors, designated 20 - 23, are positioned on the substrate to correspond, one each, with the diode columns.
  • the connecting conductors are couple to each anode and cathode of the diodes to provide addressable matrix 10, with all alternate columns of diodes being reverse connected. Thus, all of the diodes in alternate columns have a cathode connected to the column conductor, i.e.
  • Matrix 10 is designed for an LED display and, therefore, alternate columns of diodes are reverse connected, for reasons which will be apparent presently. It will of course be understood that in many applications it may be more convenient to reverse alternate rows of diodes and, therefore, the terms "row” and “column” are generally used interchangeably herein.
  • the reverse connected LEDs as applied to an LED imaging matrix, is feasible because the LED imaging array is fabricated on a GaAs substrate with the diodes being internally reverse coupled while retaining an acceptable pitch.
  • This embodiment results in an efficient internal interconnect which requires no additional devices on the LED array and very little additional work during fabrication of the array.
  • Other embodiments exist but require additional devices which are difficult to fabricate and take up additional space.
  • Each of the row conductors 12 - 16 have an external connecting pad connected thereto.
  • Each alternate column conductor is connected to an adjacent interspersed column conductor to form pairs of column conductors, 20, 21 and 22, 23.
  • Each pair of column conductors has a single external connecting pad connected thereto.
  • push-pull matrix 10 there are only two external connecting pads to all four columns 20 - 23.
  • FIG. 3 is a simplified view in cross section of an embodiment of a pair of semiconductor/organic light emitting diodes 60 connected as described above.
  • Diodes 60 are constructed by starting with an optically transparent substrate 61 formed of some convenient material such as glass.
  • a layer 62 of optically transparent conductive material is deposited on the surface of substrate 61 to form a first electrical contact.
  • layer 62 is formed of indium tin oxide.
  • a carrier injection layer 63 of semiconductor material which is optically transparent is deposited on layer 62.
  • a typical example of an optically transparent semiconductor material is diamond.
  • a light emitting layer 64 of electroluminescent material is deposited on carrier injection layer 63.
  • an electrically conductive layer 65 is deposited on light emitting layer 64 to form a second electrical contact. Since it is desirable that all light emitted by layer 64 be directed through layers 63, 62 and 61, layer 65 is any convenient metal.
  • Diodes 60 are patterned on substrate 61 so as to leave a space 66 therebetween.
  • Layers 62 and 65 are formed to extend into space 66 a short distance and a vertical connection 67 is deposited in space 66 so as to internally connect opposite terminals of the diodes 60.
  • vertical connection 67 can be formed with the deposition of layer 65. While a specific type of LED is utilized herein for illustrative purposes, it will be understood by those skilled in the art that other types of LEDs and electronic components can be utilized in a similar fashion.
  • layer 62 is patterned to extend between all of the diodes in an alternate column and layer 65 is patterned to extend between all of the diodes in an interspersed column.
  • all of the connections for the push-pull matrix are made internally with virtually no additional process steps
  • a column driving circuit 30 is illustrated, which is designed to be utilized with push-pull matrix 10.
  • Column driving circuit 30 includes a counter 31 and a plurality of logic circuits 32, only one of which is illustrated.
  • Each logic circuit 32 includes a first logic gate 33, a pair of logic gates 34 and 35 and P and N channel complementary drivers 36 and 37, respectively.
  • counter 31 is a nine bit counter, which may for example be a simple ripple counter.
  • first logic gate 33 is an eight input NAND gate
  • logic gates 34 and 35 are two input NOR gates.
  • Complementary drivers 36 and 37 are P and N channel FETs connected in series between a power source V ⁇ and a reference voltage, which in this instance is ground.
  • the first bit output of counter 31 is used as a polarity bit and is applied, in each logic circuit 32, directly to one input terminal of gate 35 and through an inverter to one input terminal of gate 34.
  • the next eight output bits of counter 31 are applied, in each logic circuit 32, to the eight input terminals of gate 33.
  • the eight input terminals are coded so that only one specific combination of output bits will cause gate 33, in each logic circuit 32, to produce an output.
  • the coded connection to each gate 33 can be accomplished in a variety of ways, as for example inverting all inputs in the first logic circuit. In this fashion gate 33 of the first logic circuit would produce an output each time counter 31 produced the output 00000000. Similarly, gate 33 of the next logic circuit is coded so that an output is produced in response to the output 00000001 from counter 31, and so on.
  • the output terminal of gate 33 is connected directly to second input terminals of each of gates 34 and 35.
  • An output terminal of gate 34 is inverted and applied to the control gate of driver 36 and an output terminal of gate 35 is applied directly to the control gate of driver 37.
  • the junction of drivers 36 and 37, which is output terminal 38, is connected to the connecting pad of columns 20, 21 of push-pull matrix 10.
  • the first (least significant) output bit of counter 31 alternately selects gate 35 (a 0 output bit) and, on the next clock pulse, gate 34 (a 1 output bit).
  • Each row driving circuit 40 includes a pair of two input terminal gates 41 and 42, two P channel drivers 43 and 44 and two N channel drivers 45 and 46.
  • the P channel drivers 43 and 44 are connected in series between power source V ⁇ and an output terminal 47.
  • the N channel drivers 45 and 46 are connected in series between output terminal 45 and a reference potential, which in this embodiment is ground.
  • P channel driver 43 and N channel driver 46 act as constant current sources and are activated by bias voltages applied to the control gates thereof.
  • An output terminal of gate 41 is connected to the control gate of P channel driver 44 and an output terminal of gate 42 is connected to the control gate of N channel driver 45.
  • Each of gates 41 and 42 is connected to a data input terminal 48.
  • the second input terminal of gate 41 is connected through an inverter to the first (least significant) output bit terminal of counter 31 and the second input terminal of gate 42 is connected directly to the first output bit terminal of counter 31.
  • data on terminal 48 consists of a series of 1 's and 0's which are indicative of whether a specific LED is to be activated or not.
  • the diodes in interspersed columns 21 and 23 are reverse connected, it is necessary to apply a potential to the rows which is lower than the potential applied to interspersed columns 21, 23 to activate these diodes.
  • a positive potential must be applied to the selected rows to activate the diodes.
  • the same output bit of counter 31 causes gates 41 and 42 of the row driver circuits to select P channel driver 44 which, if the current data bit is a 1, is turned on.
  • the same output bit of counter 31 causes gates 41 and 42 of the row driver circuits to select N channel driver 45 which, if the current data bit is a 1, is turned on.
  • FIG. 6 illustrates an electronic communication device 49 including a simplified block diagram of a complete driving circuit 50 for the matrix of FIG. 2 to provide a complete display.
  • Communications device 49 is any device which might incorporate a display for displaying messages to be sent and/or received, for example a two way radio or pager.
  • Driving circuit 50 includes counter 31, a plurality of logic circuits 32, a plurality of row driving circuits 40 and a random access memory (RAM) 52 connected to receive video data from an external interface.
  • Counter 31 supplies the polarity bit and the eight bit address to each of the plurality of logic circuits 32, as described above. Thus, each of the columns is sequentially addressed.
  • Counter 31 also supplies the polarity bit to each of the plurality of row drivers 40 and clocks RAM 52 so that data bits are supplied to the plurality of row drivers 40 in synchronism with the address inputs and polarity bit supplied to logic circuits 32 and row drivers 40.
  • the number of external connections, or connecting pads, required to address the columns in the matrix is reduced by one-half. Further, reversing the connections to interspersed columns is accomplished internally while manufacturing the matrix so that no additional space and virtually no additional processing steps are required. Also, the internal connections do not require additional devices on the array.
  • the push-pull matrix requires no additional complicated driving circuits, or additional bus lines in the driving circuits, or expensive external circuitry. The simplicity of the driving circuits is illustrated in the disclosed driving circuits. While specific driving circuits have been disclosed which incorporate the speed and convenience of CMOS circuits, it will be understood that other driving circuits utilizing different conductivity types, etc. may be devised.

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  • 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)
  • Control Of El Displays (AREA)
  • Electroluminescent Light Sources (AREA)
EP93115480A 1992-11-09 1993-09-24 Gegentaktadressierung einer Matrix Withdrawn EP0597226A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US97385492A 1992-11-09 1992-11-09
US973854 1992-11-09

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1170719A1 (de) * 2000-07-07 2002-01-09 Seiko Epson Corporation Stromgesteuerte elektrooptische Vorrichtung, z.B. elektrolumineszente Anzeige, mit komplementären Steuertransistoren, die gegen Änderungen der Schwellspannung wirksam sind
EP1274065A2 (de) * 2001-07-06 2003-01-08 Lg Electronics Inc. Schaltung und Verfahren zur Ansteuerung einer stromgesteuerten Anzeige
KR100370286B1 (ko) * 2000-12-29 2003-01-29 삼성에스디아이 주식회사 전압구동 유기발광소자의 픽셀회로
US7057590B2 (en) * 2003-11-04 2006-06-06 Infineon Technologies Ag LED array implementation
US7999463B2 (en) 2004-09-13 2011-08-16 Semiconductor Energy Laboratory Co., Ltd. Light emitting device
US8552440B2 (en) 2010-12-24 2013-10-08 Semiconductor Energy Laboratory Co., Ltd. Lighting device
US8575631B2 (en) 2010-12-24 2013-11-05 Semiconductor Energy Laboratory Co., Ltd. Lighting device
US8735874B2 (en) 2011-02-14 2014-05-27 Semiconductor Energy Laboratory Co., Ltd. Light-emitting device, display device, and method for manufacturing the same
US8742405B2 (en) 2011-02-11 2014-06-03 Semiconductor Energy Laboratory Co., Ltd. Light emitting unit, light emitting device, and lighting device
US8772795B2 (en) 2011-02-14 2014-07-08 Semiconductor Energy Laboratory Co., Ltd. Light-emitting device and lighting device
US9516713B2 (en) 2011-01-25 2016-12-06 Semiconductor Energy Laboratory Co., Ltd. Light-emitting device
US9905632B2 (en) 2010-12-28 2018-02-27 Semiconductor Energy Laboratory Co., Ltd. Light-emitting unit, light-emitting device, and lighting device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001143867A (ja) 1999-11-18 2001-05-25 Nec Corp 有機ｅｌ駆動回路

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696393A (en) * 1971-05-10 1972-10-03 Hughes Aircraft Co Analog display using light emitting diodes
FR2207620A5 (de) * 1972-11-22 1974-06-14 Thomson Csf

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696393A (en) * 1971-05-10 1972-10-03 Hughes Aircraft Co Analog display using light emitting diodes
FR2207620A5 (de) * 1972-11-22 1974-06-14 Thomson Csf

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1170719A1 (de) * 2000-07-07 2002-01-09 Seiko Epson Corporation Stromgesteuerte elektrooptische Vorrichtung, z.B. elektrolumineszente Anzeige, mit komplementären Steuertransistoren, die gegen Änderungen der Schwellspannung wirksam sind
WO2002005255A1 (en) * 2000-07-07 2002-01-17 Seiko Epson Corporation Current driven electrooptical device, e.g. organic electroluminescent display, with complementary driving transistors to counteract threshold voltage variation
US6919868B2 (en) 2000-07-07 2005-07-19 Seiko Epson Corporation Circuit, driver circuit, electro-optical device, organic electroluminescent display device electronic apparatus, method of controlling the current supply to a current driven element, and method for driving a circuit
KR100370286B1 (ko) * 2000-12-29 2003-01-29 삼성에스디아이 주식회사 전압구동 유기발광소자의 픽셀회로
EP1274065A2 (de) * 2001-07-06 2003-01-08 Lg Electronics Inc. Schaltung und Verfahren zur Ansteuerung einer stromgesteuerten Anzeige
US7057590B2 (en) * 2003-11-04 2006-06-06 Infineon Technologies Ag LED array implementation
CN1308905C (zh) * 2003-11-04 2007-04-04 因芬奈昂技术股份有限公司 改进的发光二极管阵列
DE102004053387B4 (de) * 2003-11-04 2015-07-30 Lantiq Deutschland Gmbh Verbesserte LED-Array-Implementierung
US8912718B2 (en) 2004-09-13 2014-12-16 Semiconductor Energy Laboratory Co., Ltd. Light emitting device with a plurality of circuits connected in parallel
US8487529B2 (en) 2004-09-13 2013-07-16 Semiconductor Energy Laboratory Co., Ltd. Lighting device with plural light emitting elements
US8487530B2 (en) 2004-09-13 2013-07-16 Semiconductor Energy Laboratory Co., Ltd. Lighting device having plural light emitting layers which are separated
US8436532B2 (en) 2004-09-13 2013-05-07 Semiconductor Energy Laboratory Co., Ltd. Lighting device with plural light emitting elements
US8436531B2 (en) 2004-09-13 2013-05-07 Semiconductor Energy Laboratory Co., Ltd. Lighting device having plural light emitting layers with carrier generation layer therebetween
US7999463B2 (en) 2004-09-13 2011-08-16 Semiconductor Energy Laboratory Co., Ltd. Light emitting device
US8552440B2 (en) 2010-12-24 2013-10-08 Semiconductor Energy Laboratory Co., Ltd. Lighting device
US8575631B2 (en) 2010-12-24 2013-11-05 Semiconductor Energy Laboratory Co., Ltd. Lighting device
US8975647B2 (en) 2010-12-24 2015-03-10 Semiconductor Energy Laboratory Co., Ltd. Lighting device
US9905632B2 (en) 2010-12-28 2018-02-27 Semiconductor Energy Laboratory Co., Ltd. Light-emitting unit, light-emitting device, and lighting device
US9516713B2 (en) 2011-01-25 2016-12-06 Semiconductor Energy Laboratory Co., Ltd. Light-emitting device
US9349990B2 (en) 2011-02-11 2016-05-24 Semiconductor Energy Laboratory Co., Ltd. Light emitting unit, light emitting device, and lighting device
US8742405B2 (en) 2011-02-11 2014-06-03 Semiconductor Energy Laboratory Co., Ltd. Light emitting unit, light emitting device, and lighting device
US8871536B2 (en) 2011-02-14 2014-10-28 Semiconductor Energy Laboratory Co., Ltd. Light-emitting device, display device, and method for manufacturing the same
US9281497B2 (en) 2011-02-14 2016-03-08 Semiconductor Energy Laboratory Co., Ltd. Light-emitting device, display device, and method for manufacturing the same
US8772795B2 (en) 2011-02-14 2014-07-08 Semiconductor Energy Laboratory Co., Ltd. Light-emitting device and lighting device
US8735874B2 (en) 2011-02-14 2014-05-27 Semiconductor Energy Laboratory Co., Ltd. Light-emitting device, display device, and method for manufacturing the same

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