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1. WO2018120336 - GOA GATE DRIVING CIRCUIT AND LIQUID CRYSTAL DISPLAY DEVICE

Publication Number WO/2018/120336
Publication Date 05.07.2018
International Application No. PCT/CN2017/071444
International Filing Date 17.01.2017
IPC
G09G 3/36 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for 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
34by control of light from an independent source
36using liquid crystals
CPC
G02F 1/136
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
G06F 1/04
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
1Details not covered by groups G06F3/00G06F13/00 and G06F21/00
04Generating or distributing clock signals or signals derived directly therefrom
G09G 2300/0408
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2300Aspects of the constitution of display devices
04Structural and physical details of display devices
0404Matrix technologies
0408Integration of the drivers onto the display substrate
G09G 2310/0264
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2310Command of the display device
02Addressing, scanning or driving the display screen or processing steps related thereto
0264Details of driving circuits
G09G 2310/0278
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2310Command of the display device
02Addressing, scanning or driving the display screen or processing steps related thereto
0264Details of driving circuits
0278Details of driving circuits arranged to drive both scan and data electrodes
G09G 2310/0286
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2310Command of the display device
02Addressing, scanning or driving the display screen or processing steps related thereto
0264Details of driving circuits
0286Details of a shift registers arranged for use in a driving circuit
Applicants
  • 深圳市华星光电技术有限公司 SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 王添鸿 WANG, Tianhong
  • 刘徐君 LIU, Xujun
  • 周依芳 CHOU, Yi-fang
Agents
  • 深圳市铭粤知识产权代理有限公司 MING & YUE INTELLECTUAL PROPERTY LAW FIRM
Priority Data
201611265265.X30.12.2016CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) GOA GATE DRIVING CIRCUIT AND LIQUID CRYSTAL DISPLAY DEVICE
(FR) CIRCUIT D'ATTAQUE DE GRILLE GOA ET DISPOSITIF D'AFFICHAGE À CRISTAUX LIQUIDES
(ZH) GOA栅极驱动电路以及液晶显示装置
Abstract
(EN)
A GOA gate driving circuit (100) and a liquid crystal display device comprising the same. The GOA gate driving circuit (100) comprises a plurality of cascaded GOA driving units (1). Each stage of the GOA driving units comprises: a pull-up control module (10); a pull-up transfer module (20); a first pull-down module (30); a pull-down maintenance module (40); and a second pull-down module (50) coupled between a gate control signal Qn and a low voltage reference signal VSS, controlled by a pull-down signal RT, and used to pull the gate control signal Qn down to the low voltage reference signal VSS. The pull-down signal RT is provided by an independent control chip (60).
(FR)
L'invention porte sur un circuit d'attaque de grille GOA (100) et sur un dispositif d'affichage à cristaux liquides comprenant ce dernier. Le circuit d'attaque de grille GOA (100) comprend une pluralité d'unités d'attaque GOA en cascade (1). Chaque étage des unités d'attaque GOA comprend : un module de commande de rappel vers le niveau haut (10); un module de transfert de rappel vers le niveau haut (20); un premier module de rappel vers le niveau bas (30); un module de maintien de rappel vers le niveau bas (40); et un second module de rappel vers le niveau bas (50) couplé entre un signal de commande de grille (Qn) et un signal de référence basse tension (VSS), commandé par un signal de rappel vers le niveau bas (RT), et utilisé pour baisser le signal de commande de grille (Qn) au signal de référence basse tension (VSS). Le signal de rappel vers le niveau bas (RT) est fourni par une puce de commande indépendante (60).
(ZH)
一种GOA栅极驱动电路(100)以及包括GOA栅极驱动电路(100)的液晶显示装置,GOA栅极驱动电路(100)包括级联设置的多个GOA驱动单元(1),每一级GOA驱动单元(1)包括上拉控制模块(10)、上拉级传模块(20)、第一下拉模块(30)以及下拉维持模块(40);其中,每一级GOA驱动单元(1)还包括第二下拉模块(50),第二下拉模块(50)耦接于栅极控制信号(Qn)和基准低电平信号(VSS)之间,第二下拉模块(50)由下拉信号(RT)控制,用于将栅极控制信号(Qn)拉低至基准低电平信号(VSS),下拉信号(RT)是由独立的控制芯片(60)提供。
Also published as
Latest bibliographic data on file with the International Bureau