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1. WO2020228188 - GOA CIRCUIT AND LIQUID CRYSTAL DISPLAY

Publication Number WO/2020/228188
Publication Date 19.11.2020
International Application No. PCT/CN2019/104099
International Filing Date 03.09.2019
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
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
Applicants
  • 深圳市华星光电技术有限公司 SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 陈帅 CHEN, Shuai
Agents
  • 深圳翼盛智成知识产权事务所(普通合伙) ESSEN PATENT & TRADEMARK AGENCY
Priority Data
201910408790.X16.05.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) GOA CIRCUIT AND LIQUID CRYSTAL DISPLAY
(FR) CIRCUIT GOA ET AFFICHAGE À CRISTAUX LIQUIDES
(ZH) GOA电路及液晶显示器
Abstract
(EN)
Disclosed are a GOA circuit and a liquid crystal display. The GOA circuit comprises 2N GOA units. The Nth-stage GOA unit and the (N+1)th-stage GOA unit among the 2N GOA units share the same pull-down holding circuit, and N is a positive integer. Sharing one pull-down holding circuit reduces the number of circuits in the GOA circuit, thereby saving the space occupied by the GOA circuit in a liquid crystal display, and improves the use efficiency of the a TFT device in the circuit, thereby facilitating narrow bezel design of the liquid crystal display.
(FR)
L’invention concerne un circuit GOA et un affichage à cristaux liquides. Le circuit GOA comprend 2N unités GOA. L'unité GOA de Nième étage et l'unité GOA de (N+1)ième étage parmi les 2N unités GOA partagent le même circuit de maintien d'excursion basse, et N est un nombre entier positif. Le partage d'un circuit de maintien d'excursion basse réduit le nombre de circuits dans le circuit GOA, ce qui permet de réduire l'espace occupé par le circuit GOA dans un affichage à cristaux liquides et qui améliore l'efficacité d'utilisation du dispositif TFT dans le circuit, ce qui facilite la conception d'un cadre étroit de l'affichage à cristaux liquides.
(ZH)
公开了一种GOA电路及液晶显示器。该GOA电路包括2N个GOA单元,该2N个GOA单元中第N级GOA单元与第N+1级GOA单元共用同一个下拉维持电路,N为正整数。通过共用一个下拉维持电路,减少了GOA电路中电路的数量,从而节省了GOA电路在液晶显示器上所占据的空间,同时提高了TFT器件中电路的使用效率,有利于液晶显示器的窄边框设计。
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