WO2020062501A1 - Structure de circuit goa - Google Patents

Structure de circuit goa Download PDF

Info

Publication number
WO2020062501A1
WO2020062501A1 PCT/CN2018/116368 CN2018116368W WO2020062501A1 WO 2020062501 A1 WO2020062501 A1 WO 2020062501A1 CN 2018116368 W CN2018116368 W CN 2018116368W WO 2020062501 A1 WO2020062501 A1 WO 2020062501A1
Authority
WO
WIPO (PCT)
Prior art keywords
thin film
film transistor
electrically connected
goa circuit
gate
Prior art date
Application number
PCT/CN2018/116368
Other languages
English (en)
Chinese (zh)
Inventor
陈帅
Original Assignee
深圳市华星光电技术有限公司
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 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Publication of WO2020062501A1 publication Critical patent/WO2020062501A1/fr

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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3674—Details of drivers for scan electrodes
    • G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0286—Details of a shift registers arranged for use in a driving circuit

Definitions

  • an embodiment of the present invention provides a GOA circuit structure.
  • the GOA circuit structure is a plurality of cascaded GOA circuits.
  • the n-th GOA circuit includes a pull-up control unit, a Pull-down unit, pull-down unit, pull-down unit, pull-down sustain unit, and an additional thin-film transistor (T23); wherein the pull-up unit, the download unit, the pull-down unit, and the pull-down sustain unit and the nth
  • the gate signal output terminal (G (n)) of the GOA circuit is electrically connected, where n is a natural number; the pull-up control unit, the download unit, the pull-down unit, and the pull-down sustain unit are connected to the n-th stage.
  • the pull-down unit includes a fourth thin film transistor (T41), and a gate of the fourth thin film transistor (T41) is electrically connected to a gate of the n + q-level GOA circuit.
  • a signal output terminal (G (n + 4)), a drain of the fourth thin film transistor (T41) is electrically connected to a gate signal point (Q (n)) of the n-th GOA circuit, and the A source of the fourth thin film transistor (T41) is electrically connected to the working voltage (VSS); and a fifth thin film transistor (T31), a gate of the fifth thin film transistor (T31) is connected to the n + qth A gate signal output terminal (G (n + 4)) of the first-level GOA circuit, a drain of the fifth thin film transistor (T31) is electrically connected to the gate signal output terminal (G (n)), and A source of the fifth thin film transistor (T31) is electrically connected to the operating voltage (VSS).
  • FIG. 3 is a schematic diagram of a preferred embodiment of the GOA circuit structure of the present invention.
  • FIGS 4 and 5 are schematic diagrams of related waveforms of the GOA circuit structure of the present invention.
  • the gate signal of the first thin film transistor T11 of the pull-up control unit 2 is changed from the existing stage signal output terminal ST (n-4) to the stage signal output terminal ST (n- 3), and the additional thin film transistor T23 is further provided, wherein the gate of the additional thin film transistor T23 is electrically connected to the control signal terminal P (n-3), and the source of the additional thin film transistor T23 is electrically Is connected to the stage signal output terminal ST (n-3), and the drain of the additional thin film transistor T23 is electrically connected to the operating voltage VSS, so that the gate signal point Q (n) potential drop can be prevented from affecting the first
  • the turning on of the three thin film transistors T21 further reduces the interference with the output waveform of the gate signal output terminal G (n).
  • the effective turning off of the first thin film transistor T11 can be maintained, thereby improving the gate signal The stability of the potential at point Q (n).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (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)

Abstract

L'invention concerne une structure de circuit GOA. La structure d'unité GOA comprend une unité de commande d'excursion haute (2), une unité d'excursion haute (3), une unité d'excursion basse (5), une unité de maintien d'excursion basse (6), ainsi qu'un transistor à couches minces supplémentaire (T23). En fournissant le transistor à couches minces supplémentaire (T23) et en connectant électriquement une extrémité de signal de commande à une grille du transistor à couches minces supplémentaire (T23), il est possible de réduire la situation d'interférence dans une forme d'onde de sortie d'une extrémité de sortie de signal de grille de la structure de circuit GOA.
PCT/CN2018/116368 2018-09-25 2018-11-20 Structure de circuit goa WO2020062501A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811119940.7 2018-09-25
CN201811119940.7A CN109119041B (zh) 2018-09-25 2018-09-25 Goa电路结构

Publications (1)

Publication Number Publication Date
WO2020062501A1 true WO2020062501A1 (fr) 2020-04-02

Family

ID=64856757

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/116368 WO2020062501A1 (fr) 2018-09-25 2018-11-20 Structure de circuit goa

Country Status (2)

Country Link
CN (1) CN109119041B (fr)
WO (1) WO2020062501A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114360431A (zh) * 2022-01-28 2022-04-15 深圳市华星光电半导体显示技术有限公司 Goa电路及显示面板

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109509459B (zh) * 2019-01-25 2020-09-01 深圳市华星光电技术有限公司 Goa电路及显示装置

Citations (10)

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CN101625838A (zh) * 2008-07-08 2010-01-13 三星电子株式会社 栅极驱动器及具有该栅极驱动器的显示设备
CN102063858A (zh) * 2010-12-06 2011-05-18 友达光电股份有限公司 移位寄存器电路
US20150255172A1 (en) * 2014-03-10 2015-09-10 Chunghwa Picture Tubes, Ltd. Gate driving circuit
CN105590612A (zh) * 2016-03-22 2016-05-18 京东方科技集团股份有限公司 一种移位寄存器及驱动方法、栅极驱动电路和显示装置
CN105788548A (zh) * 2015-01-14 2016-07-20 三星显示有限公司 栅极驱动电路
CN106652936A (zh) * 2016-12-09 2017-05-10 深圳市华星光电技术有限公司 Goa电路及显示装置
CN107316619A (zh) * 2017-08-14 2017-11-03 深圳市华星光电半导体显示技术有限公司 Goa电路及液晶显示装置
CN107622758A (zh) * 2016-07-14 2018-01-23 三星显示有限公司 栅极驱动电路及具有栅极驱动电路的显示装置
CN107799087A (zh) * 2017-11-24 2018-03-13 深圳市华星光电技术有限公司 一种goa电路及显示装置
CN107978290A (zh) * 2017-12-26 2018-05-01 深圳市华星光电技术有限公司 一种栅极驱动器及驱动电路

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EP2348502B1 (fr) * 2002-01-24 2013-04-03 Semiconductor Energy Laboratory Co. Ltd. Dispositif semi-conducteur et méthode de commande du dispositif semi-conducteur
CN103985369B (zh) * 2014-05-26 2017-02-15 深圳市华星光电技术有限公司 阵列基板行驱动电路及液晶显示装置
CN106205528B (zh) * 2016-07-19 2019-04-16 深圳市华星光电技术有限公司 一种goa电路及液晶显示面板
CN107123405A (zh) * 2017-06-01 2017-09-01 深圳市华星光电技术有限公司 双向移位寄存器单元、双向移位寄存器及显示面板

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101625838A (zh) * 2008-07-08 2010-01-13 三星电子株式会社 栅极驱动器及具有该栅极驱动器的显示设备
CN102063858A (zh) * 2010-12-06 2011-05-18 友达光电股份有限公司 移位寄存器电路
US20150255172A1 (en) * 2014-03-10 2015-09-10 Chunghwa Picture Tubes, Ltd. Gate driving circuit
CN105788548A (zh) * 2015-01-14 2016-07-20 三星显示有限公司 栅极驱动电路
CN105590612A (zh) * 2016-03-22 2016-05-18 京东方科技集团股份有限公司 一种移位寄存器及驱动方法、栅极驱动电路和显示装置
CN107622758A (zh) * 2016-07-14 2018-01-23 三星显示有限公司 栅极驱动电路及具有栅极驱动电路的显示装置
CN106652936A (zh) * 2016-12-09 2017-05-10 深圳市华星光电技术有限公司 Goa电路及显示装置
CN107316619A (zh) * 2017-08-14 2017-11-03 深圳市华星光电半导体显示技术有限公司 Goa电路及液晶显示装置
CN107799087A (zh) * 2017-11-24 2018-03-13 深圳市华星光电技术有限公司 一种goa电路及显示装置
CN107978290A (zh) * 2017-12-26 2018-05-01 深圳市华星光电技术有限公司 一种栅极驱动器及驱动电路

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114360431A (zh) * 2022-01-28 2022-04-15 深圳市华星光电半导体显示技术有限公司 Goa电路及显示面板
CN114360431B (zh) * 2022-01-28 2023-08-22 深圳市华星光电半导体显示技术有限公司 Goa电路及显示面板

Also Published As

Publication number Publication date
CN109119041A (zh) 2019-01-01
CN109119041B (zh) 2020-05-22

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