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1. WO2014153821 - DISPLAY DRIVE CIRCUIT AND DRIVE METHOD THEREOF, AND DISPLAY DEVICE

Publication Number WO/2014/153821
Publication Date 02.10.2014
International Application No. PCT/CN2013/075915
International Filing Date 20.05.2013
IPC
G09G 3/20 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
CPC
G09G 2310/0213
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
0202Addressing of scan or signal lines
0213controlling the sequence of the scanning lines with respect to the patterns to be displayed, e.g. to save power
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
G09G 2320/0209
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2320Control of display operating conditions
02Improving the quality of display appearance
0209Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
G09G 2320/0247
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2320Control of display operating conditions
02Improving the quality of display appearance
0247Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
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
G11C 19/28
GPHYSICS
11INFORMATION STORAGE
CSTATIC STORES
19Digital stores in which the information is moved stepwise, e.g. shift register
28using semiconductor elements
Applicants
  • 京东方科技集团股份有限公司 BOE TECHNOLOGY GROUP CO., LTD. [CN]/[CN]
  • 北京京东方显示技术有限公司 BEIJING BOE DISPLAY TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 吴行吉 WU, Xingji
  • 李承珉 LEE, Seung Min
  • 许益祯 XU, Yizhen
  • 张亮 ZHANG, Liang
Agents
  • 北京市柳沈律师事务所 LIU, SHEN & ASSOCIATES
Priority Data
201310100375.026.03.2013CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) DISPLAY DRIVE CIRCUIT AND DRIVE METHOD THEREOF, AND DISPLAY DEVICE
(FR) CIRCUIT D'ATTAQUE D'AFFICHEUR ET SON PROCÉDÉ D'ATTAQUE, ET DISPOSITIF D'AFFICHAGE
(ZH) 显示驱动电路及其驱动方法、显示装置
Abstract
(EN)
The present invention relates to display technologies. Disclosed is a display drive circuit, comprising: a grid line drive circuit, for spacing grid line drive signals in adjacent lines according to a first output enable signal; a shielding signal generation circuit, for triggering to generate a shielding signal when gate drive signals need to be disabled; a grid line shielding circuit, a first input end of which inputs the first output enable signal and a second input end of which inputs the shielding signal, an output end being connected to the grid line drive circuit, and the grid line shielding circuit being used to shield the first output enable signal according to the shielding signal to disable the grid line drive signal. With the display drive circuit and the drive method thereof, and the display device according to the embodiments of the present invention, the first output enable signal is shielded by directly using the shielding signal, so as to disable the grid line drive signal and shield data on a corresponding grid line; in this way, abnormal display is avoided by using the first output enable signal, and circuit cost and circuit space can be further saved.
(FR)
La présente invention concerne les technologies d'affichage. Elle réalise un circuit d'attaque d'affichage comprenant : un circuit d'attaque de ligne de grille, pour espacer des signaux d'attaque de ligne de grille dans des lignes voisines conformément à un premier signal d'activation de sortie ; un circuit de génération de signal de blindage pour le déclenchement de la génération d'un signal de blindage lorsqu'il est nécessaire de désactiver les signaux d'attaque de gâchette ; un circuit de blindage de ligne de grille dont une première extrémité d'entrée reçoit en entrée le premier signal d'activation de sortie et dont une deuxième extrémité d'entrée reçoit en entrée le signal de blindage, une extrémité de sortie étant connectée au circuit d'attaque de ligne de grille et le circuit de blindage de ligne de grille étant utilisé pour blinder le premier signal d'activation de sortie conformément au signal de blindage afin de désactiver le signal d'attaque de ligne de grille. Avec le circuit d'attaque d'afficheur et son procédé d'attaque ainsi que le dispositif d'affichage selon les modes de réalisation de la présente invention, le premier signal d'activation de sortie est blindé en utilisant directement le signal de blindage, de manière à désactiver le signal d'attaque de ligne de grille et à blinder les données sur une ligne de grille correspondante ; un affichage anormal est ainsi évité en utilisant le premier signal d'activation de sortie et le coût du circuit ainsi que l'encombrement du circuit peuvent être réduits encore davantage.
(ZH)
本发明涉及显示技术。公开一种显示驱动电路,包括:栅线驱动电路,用于根据第一输出使能信号,分隔相邻行的栅线驱动信号;屏蔽信号产生电路,当需要关断栅极驱动信号时,触发产生屏蔽信号;栅线屏蔽电路,栅线屏蔽电路的第一输入端输入第一输出使能信号,第二输入端输入所述屏蔽信号,输出端连接所述栅线驱动电路,栅线屏蔽电路用于根据屏蔽信号屏蔽第一输出使能信号,从而关闭栅线驱动信号。本发明实施例的显示驱动电路及其驱动方法、显示装置,直接根据屏蔽信号对第一输出使能信号进行屏蔽,从而对栅线驱动信号进行关断,对相应栅线上的数据进行屏蔽,能够利用第一输出使能信号避免显示异常情况的出现,而且还可以节省电路成本和电路空间。
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