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1. (WO2014190623) PIXEL DRIVE CIRCUIT AND DRIVE METHOD THEREFOR, ARRAY SUBSTRATE AND DISPLAY DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2014/190623 International Application No.: PCT/CN2013/081676
Publication Date: 04.12.2014 International Filing Date: 16.08.2013
IPC:
G02F 1/1368 (2006.01)
G PHYSICS
02
OPTICS
F
DEVICES 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
1
Devices 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
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
133
Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
136
Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
1362
Active matrix addressed cells
1368
in which the switching element is a three-electrode device
Applicants: BOE TECHNOLOGY GROUP CO., LTD.[CN/CN]; No.10 Jiuxianqiao Rd., Chaoyang District Beijing 100015, CN
BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.[CN/CN]; No.8 Xihuanzhonglu, BDA Beijing 100176, CN
Inventors: WU, Hao; CN
YU, Hongjun; CN
ZHAO, Xiuqiang; CN
CUI, Ziwei; CN
Agent: LIU, SHEN & ASSOCIATES; 10th Floor, Building 1, 10 Caihefang Road, Haidian District Beijing 100080, CN
Priority Data:
201310205693.329.05.2013CN
Title (EN) PIXEL DRIVE CIRCUIT AND DRIVE METHOD THEREFOR, ARRAY SUBSTRATE AND DISPLAY DEVICE
(FR) CIRCUIT D'ATTAQUE DE PIXEL ET PROCÉDÉ D'ATTAQUE ASSOCIÉ, SUBSTRAT DE RÉSEAU ET DISPOSITIF D'AFFICHAGE
(ZH) 像素驱动电路及其驱动方法、阵列基板、显示装置
Abstract:
(EN) A pixel drive circuit and a drive method therefor, an array substrate and a display device. Such a pixel drive circuit can maintain a voltage difference between the two ends of a storage capacitor (Cst) when gate line scanning has ended. The pixel drive circuit comprises a pixel thin-film transistor (TO) and a storage capacitor (Cst), wherein the gate electrode of the pixel thin-film transistor (TO) is connected to a gate line, the first end of the pixel thin-film transistor (TO) is connected to a data signal (Data), the second end of the pixel thin-film transistor (TO) is connected to the first end of the storage capacitor (Cst), and the second end of the storage capacitor (Cst) is connected to the ground. The pixel drive circuit further comprises: a follow module, wherein the follow module is connected to the first end of the storage capacitor (Cst), and used for maintaining a voltage difference between the two ends of the storage capacitor (Cst) when a gate scanning signal (Gate (n)) jumps to a low level from a high level to enable a pixel electrode to obtain a sufficient voltage, so as to ensure the display effect of a liquid crystal display.
(FR) L'invention concerne un circuit d'attaque de pixel et un procédé d'attaque associé, un substrat de réseau et un dispositif d'affichage. Un tel circuit d'attaque de pixel peut maintenir une différence de tension entre les deux bornes d'un condensateur de stockage (Cst) lorsque le balayage de ligne de grille est terminé. Le circuit d'attaque de pixel comprend un transistor en couches minces de pixel (TO) et un condensateur de stockage (Cst), l'électrode d'attaque du transistor en couches minces de pixel (TO) étant connectée à une ligne de grille, la première extrémité du transistor en couches minces de pixel (TO) étant connectée à un signal de données (Data), la seconde extrémité du transistor en couches minces de pixel (TO) étant connectée à la première extrémité du condensateur de stockage (Cst), et la seconde extrémité du condensateur de stockage (Cst) étant connectée à la masse. Le circuit d'attaque de pixel comprend en outre: un module de suivi, le module de suivi étant connecté à la première extrémité du condensateur de stockage (Cst), et utilisé pour maintenir une différence de tension entre les deux extrémités du condensateur de stockage (Cst) quand un signal de balayage de porte (Porte (n)) passe à un niveau bas à partir d'un niveau élevé pour permettre à une électrode de pixel d'atteindre une tension suffisante, de façon à assurer l'effet d'affichage d'un écran à cristaux liquides.
(ZH) 一种像素驱动电路及其驱动方法、阵列基板、显示装置。这种像素驱动电路能够在栅线扫描结束时,维持存储电容(Cst)两端的电压差。该种像素驱动电路包括像素薄膜晶体管(TO)和存储电容(Cst),所述像素薄膜晶体管(TO)的栅极连接栅线,所述像素薄膜晶体管(TO)的第一端连接数据信号(Data),所述像素薄膜晶体管(TO)的第二端连接所述存储电容(Cst)的第一端,所述存储电容(Cst)的第二端接地,所述像素驱动电路还包括:跟随模块,所述跟随模块连接所述存储电容(Cst)的第一端,用于当栅极扫描信号(Gate(n))由高电平跳变为低电平时,维持存储电容(Cst)两端的电压差,使像素电极获得足够的电压,保证液晶显示器的显示效果。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)