Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

Aller à Demande

1. CN107958656 - GOA circuit

Office Chine
Numéro de la demande 201810016691.2
Date de la demande 08.01.2018
Numéro de publication 107958656
Date de publication 24.04.2018
Numéro de délivrance 107958656
Date de délivrance 02.07.2019
Type de publication B
CIB
G09G 3/36
GPHYSIQUE
09ENSEIGNEMENT; CRYPTOGRAPHIE; PRÉSENTATION; PUBLICITÉ; SCEAUX
GDISPOSITIONS OU CIRCUITS POUR LA COMMANDE DE L'AFFICHAGE UTILISANT DES MOYENS STATIQUES POUR PRÉSENTER UNE INFORMATION VARIABLE
3Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques
20pour la présentation d'un ensemble de plusieurs caractères, p.ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice
34en commandant la lumière provenant d'une source indépendante
36utilisant des cristaux liquides
CPC
G09G 3/3677
GPHYSICS
09EDUCATION; 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 ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
34by control of light from an independent source
36using liquid crystals
3611Control of matrices with row and column drivers
3674Details of drivers for scan electrodes
3677suitable for active matrices only
G09G 3/3696
GPHYSICS
09EDUCATION; 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 ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
34by control of light from an independent source
36using liquid crystals
3611Control of matrices with row and column drivers
3696Generation of voltages supplied to electrode drivers
G09G 3/20
GPHYSICS
09EDUCATION; 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 ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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 2310/0286
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
G11C 19/28
GPHYSICS
11INFORMATION STORAGE
CSTATIC STORES
19Digital stores in which the information is moved stepwise, e.g. shift register
28using semiconductor elements
Déposants WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
武汉华星光电技术有限公司
Inventeurs HONG GUANGHUI
洪光辉
Mandataires 深圳市德力知识产权代理事务所 44265
Titre
(EN) GOA circuit
(ZH) GOA电路
Abrégé
(EN)
The invention provides a GOA circuit. According to the GOA circuit, a second thin film transistor is arranged in an output module, the drain electrode of the second thin film transistor is electrically connected with the source electrode of a first thin film transistor, a first control signal is accessed to the grid electrode of the second thin film transistor, an Mth clock signal is accessed to the source electrode of the second thin film transistor, and opening and closure of the second thin film transistor are controlled through the first control signal; or the drain electrode of the secondthin film transistor is electrically connected with the source electrode of the first thin film transistor, the Mth clock signal is accessed to the grid electrode of the second thin film transistor,the source electrode of the second thin film transistor is electrically connected with a first node, and then the second thin film transistor is communicated when the Mth clock signal is at a high level and the first node is at a high level, and is cut off at other moments. Therefore, a voltage difference between the source electrode and the drain electrode of the first thin film transistor is avoided, the current stress to the first thin film transistor is reduced, and the product quality is effectively improved.

(ZH)
本发明提供一种GOA电路。本发明的GOA电路在输出模块中设置第二薄膜晶体管,通过使第二薄膜晶体管的漏极与第一薄膜晶体管的源极电性连接、栅极接入第一控制信号、源极接入第M条时钟信号,利用第一控制信号控制第二薄膜晶体管的开闭,或者通过使第二薄膜晶体管的漏极电性连接第一薄膜晶体管的源极、栅极接入第M条时钟信号、源极电性连接第一节点,以使第二薄膜晶体管仅在第M条时钟信号为高电位且第一节点为高电位时导通并在其余时刻截止,能够避免第一薄膜晶体管的源漏极之间产生电压差,降低其受到的电流应力,有效地提高了产品的品质。

Également publié en tant que