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WO2008093451A1 - Pixel circuit, and display device - Google Patents

Pixel circuit, and display device Download PDF

Info

Publication number
WO2008093451A1
WO2008093451A1 PCT/JP2007/068681 JP2007068681W WO2008093451A1 WO 2008093451 A1 WO2008093451 A1 WO 2008093451A1 JP 2007068681 W JP2007068681 W JP 2007068681W WO 2008093451 A1 WO2008093451 A1 WO 2008093451A1
Authority
WO
WIPO (PCT)
Prior art keywords
control terminal
switching transistor
wiring
drive transistor
pixel circuit
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.)
Ceased
Application number
PCT/JP2007/068681
Other languages
French (fr)
Japanese (ja)
Inventor
Seiji Ohhashi
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to CN200780041922.5A priority Critical patent/CN101536070B/en
Priority to US12/312,144 priority patent/US20100073344A1/en
Publication of WO2008093451A1 publication Critical patent/WO2008093451A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • 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
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0819—Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
    • 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
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G09G2300/0852—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor being a dynamic memory with more than one capacitor
    • 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
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)

Abstract

An electrooptic element (ELD) is connected between a first power wiring (Vcom) and the second conduction terminal (D) of a drive transistor (21). This drive transistor (21) has its first conduction terminal (S) connected with a second power wiring (Vp) and its second conduction terminal (D) connected through a first switching transistor (22) with the control terminal (G) of the drive transistor (21). The first switching transistor (22) has its control terminal (G) connected with a control wiring (Wi). The drive transistor (21) has its control terminal (G) connected through a first condenser (C1) with a node (K), which is connected through a second switching transistor (23) with a data line (Sj). The second switching transistor (23) has its control terminal (G) connected with a scanning line (Gi), and the node (K) is connected with a third power source wiring (Vref) through a second condenser (C2). The constitution thus made realizes a pixel circuit (Aij20) for setting the period, for which the threshold voltage of the driving TFT (21) is compensated, freely, and for reducing the power consumption.
PCT/JP2007/068681 2007-01-31 2007-09-26 Pixel circuit, and display device Ceased WO2008093451A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200780041922.5A CN101536070B (en) 2007-01-31 2007-09-26 Pixel circuit, and display device
US12/312,144 US20100073344A1 (en) 2007-01-31 2007-09-26 Pixel circuit and display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007022300 2007-01-31
JP2007-022300 2007-08-16

Publications (1)

Publication Number Publication Date
WO2008093451A1 true WO2008093451A1 (en) 2008-08-07

Family

ID=39673767

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/068681 Ceased WO2008093451A1 (en) 2007-01-31 2007-09-26 Pixel circuit, and display device

Country Status (2)

Country Link
CN (1) CN101536070B (en)
WO (1) WO2008093451A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230146875A1 (en) * 2021-11-05 2023-05-11 Lg Display Co., Ltd. Electroluminescent display device having pixel driving circuit

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112012010181A2 (en) * 2009-10-29 2016-04-12 Sharp Kk pixel circuit and video device
EP2495716B1 (en) * 2009-10-29 2014-04-30 Sharp Kabushiki Kaisha Pixel circuit and display apparatus
JP2011175103A (en) * 2010-02-24 2011-09-08 Sony Corp Pixel circuit, display device and method for driving the same, and electronic equipment
CN102651192A (en) * 2011-06-21 2012-08-29 京东方科技集团股份有限公司 Active matrix/organic light emitting diode and driving circuit and method thereof
CN104733493B (en) * 2013-12-23 2019-01-04 昆山工研院新型平板显示技术中心有限公司 A kind of pixel circuit and driving method and its application
CN107919089B (en) 2016-10-09 2019-11-22 上海和辉光电有限公司 A kind of display circuit in pixel array and its virtual reality
CN108648696B (en) * 2018-03-22 2020-02-18 京东方科技集团股份有限公司 Pixel circuit, array substrate, display device, and pixel driving method
CN113471220B (en) * 2021-06-30 2022-09-20 武汉天马微电子有限公司 Array substrate, display panel and display device
CN115762398B (en) * 2021-09-03 2025-07-22 乐金显示有限公司 Pixel circuit and display device including the same
WO2023231097A1 (en) * 2022-05-31 2023-12-07 京东方科技集团股份有限公司 Pixel circuit, display panel, driving method and display apparatus
JP2025517266A (en) 2022-05-31 2025-06-05 京東方科技集團股▲ふん▼有限公司 PIXEL CIRCUIT, DISPLAY PANEL, DRIVING METHOD AND DISPLAY DEVICE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003173165A (en) * 2001-09-29 2003-06-20 Toshiba Corp Display device
JP2004133240A (en) * 2002-10-11 2004-04-30 Sony Corp Active matrix display device and driving method thereof
JP2006178028A (en) * 2004-12-21 2006-07-06 Casio Comput Co Ltd LIGHT EMITTING DRIVE CIRCUIT, ITS DRIVE CONTROL METHOD, DISPLAY DEVICE, AND ITS DISPLAY DRIVE METHOD
JP2006259373A (en) * 2005-03-17 2006-09-28 Eastman Kodak Co Display device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003173165A (en) * 2001-09-29 2003-06-20 Toshiba Corp Display device
JP2004133240A (en) * 2002-10-11 2004-04-30 Sony Corp Active matrix display device and driving method thereof
JP2006178028A (en) * 2004-12-21 2006-07-06 Casio Comput Co Ltd LIGHT EMITTING DRIVE CIRCUIT, ITS DRIVE CONTROL METHOD, DISPLAY DEVICE, AND ITS DISPLAY DRIVE METHOD
JP2006259373A (en) * 2005-03-17 2006-09-28 Eastman Kodak Co Display device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230146875A1 (en) * 2021-11-05 2023-05-11 Lg Display Co., Ltd. Electroluminescent display device having pixel driving circuit
JP2023070075A (en) * 2021-11-05 2023-05-18 エルジー ディスプレイ カンパニー リミテッド Electroluminescent display device including pixel driving circuit
JP7463467B2 (en) 2021-11-05 2024-04-08 エルジー ディスプレイ カンパニー リミテッド ELECTROLUMINESCENT DISPLAY DEVICE INCLUDING A PIXEL DRIVE CIRCUIT
US12295210B2 (en) * 2021-11-05 2025-05-06 Lg Display Co., Ltd. Electroluminescent display device having pixel driving circuit

Also Published As

Publication number Publication date
CN101536070B (en) 2012-01-18
CN101536070A (en) 2009-09-16

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