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1. WO2020220613 - PIXEL DRIVE CIRCUIT AND DRIVE METHOD THEREFOR

Publication Number WO/2020/220613
Publication Date 05.11.2020
International Application No. PCT/CN2019/113224
International Filing Date 25.10.2019
IPC
G09G 3/3208 2016.01
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
22using controlled light sources
30using electroluminescent panels
32semiconductive, e.g. using light-emitting diodes
3208organic, e.g. using organic light-emitting diodes
CPC
G09G 3/3208
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
22using controlled light sources
30using electroluminescent panels
32semiconductive, e.g. using light-emitting diodes [LED]
3208organic, e.g. using organic light-emitting diodes [OLED]
Applicants
  • 云谷(固安)科技有限公司 YUNGU (GU'AN) TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 沈阳 SHEN, Yang
  • 朱晖 ZHU, Hui
  • 李永岗 LI, Yonggang
  • 朱正勇 ZHU, Zhengyong
Agents
  • 北京远智汇知识产权代理有限公司 BEIJING YZH IP FIRM
Priority Data
201910356076.029.04.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) PIXEL DRIVE CIRCUIT AND DRIVE METHOD THEREFOR
(FR) CIRCUIT D'EXCITATION DE PIXEL ET SON PROCÉDÉ D'EXCITATION
(ZH) 像素驱动电路及其驱动方法
Abstract
(EN)
A pixel drive circuit and a drive method therefor. The pixel drive circuit comprises: a drive module (1), configured to provide a drive current (Id) to an organic light-emitting structure (A), the organic light-emitting structure (A) responding to the drive current (Id) to emit light, and the drive module (1) comprising a drive transistor (M9); a data write module (2), configured to write a data signal into a control terminal (a1) of the drive module (1); a first storage module (3), configured to maintain the potential of the control terminal (a1) of the drive module (1) in a light-emitting phase of the organic light-emitting structure (A); a first initialization module (4), configured to initialize the potential of the source electrode of the drive transistor (M9) in an initialization phase; and a second storage module (5), configured to maintain the potential of the source electrode of the drive transistor (M9) before a phase in which the data signal is written into the control terminal (a1) of the drive module (1).
(FR)
L'invention porte sur un circuit d'excitation de pixel et sur son procédé d'excitation. Le circuit d'excitation de pixel comprend : un module d'excitation (1) configuré pour fournir un courant d'excitation (Id) à une structure électroluminescente organique (A), la structure électroluminescente organique (A) répondant au courant d'excitation (Id) pour émettre de la lumière, et le module d'excitation (1) comprenant un transistor d'excitation (M9) ; un module d'écriture de données (2), configuré pour écrire un signal de données dans un terminal de commande (a1) du module d'excitation (1) ; un premier module de stockage (3), configuré pour maintenir le potentiel du terminal de commande (a1) du module d'excitation (1) dans une phase d'émission de lumière de la structure électroluminescente organique (A) ; un premier module d'initialisation (4), configuré pour initialiser le potentiel de l'électrode source du transistor d'excitation (M9) dans une phase d'initialisation ; et un second module de stockage (5), configuré pour maintenir le potentiel de l'électrode source du transistor d'excitation (M9) avant une phase dans laquelle le signal de données est écrit dans le terminal de commande (a1) du module d'excitation (1).
(ZH)
一种像素驱动电路及其驱动方法,像素驱动电路包括:驱动模块(1),驱动模块(1)设置为向有机发光结构(A)提供驱动电流(Id),有机发光结构(A)响应驱动电流(Id)以发光,驱动模块(1)包括驱动晶体管(M9);数据写入模块(2)设置为将数据信号写入驱动模块(1)的控制端(a1);第一存储模块(3)设置为维持驱动模块(1)的控制端(a1)在有机发光结构(A)的发光阶段的电位;第一初始化模块(4)设置为在初始化阶段对驱动晶体管(M9)的源极的电位进行初始化;第二存储模块(5)设置为维持驱动晶体管(M9)的源极在数据信号写入驱动模块(1)的控制端(a1)阶段之前的电位。
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