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1. WO2020220496 - DRIVING DEVICE FOR IMPROVING ELECTROMAGNETIC RADIATION OF GOA CIRCUIT AND METHOD THEREFOR

Publication Number WO/2020/220496
Publication Date 05.11.2020
International Application No. PCT/CN2019/099088
International Filing Date 02.08.2019
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 2310/0267
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
0267Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
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
Applicants
  • 深圳市华星光电半导体显示技术有限公司 SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 杨铮 YANG, Zheng
Agents
  • 深圳翼盛智成知识产权事务所(普通合伙) ESSEN PATENT&TRADEMARK AGENCY
Priority Data
201910358129.230.04.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) DRIVING DEVICE FOR IMPROVING ELECTROMAGNETIC RADIATION OF GOA CIRCUIT AND METHOD THEREFOR
(FR) DISPOSITIF DE PILOTAGE PERMETTANT D'AMÉLIORER LE RAYONNEMENT ÉLECTROMAGNÉTIQUE D'UN CIRCUIT GOA ET SON PROCÉDÉ
(ZH) 改善GOA电路电磁辐射的驱动装置及其方法
Abstract
(EN)
A driving device (100) for improving the electromagnetic radiation of a GOA circuit and a method therefor, wherein the driving device (100) for improving the electromagnetic radiation of the GOA circuit comprises: a timing controller (101), a level converter (102), and a GOA control circuit (103). The duty ratio of a clock signal in the GOA control circuit (103) is adjusted to adjust the distribution of harmonic energy thereof, change the magnitude of higher-order harmonic energy corresponding to different magnifications, and reduce the total energy thereof with corresponding frequency points of a core board part so as to overall meet a standard for electromagnetic radiation.
(FR)
L'invention concerne un dispositif de pilotage (100) permettant d'améliorer le rayonnement électromagnétique d'un circuit GOA et son procédé, le dispositif de pilotage (100) permettant d'améliorer le rayonnement électromagnétique du circuit GOA comprenant : un dispositif de commande de temporisation (101), un convertisseur de niveau (102) et un circuit de commande GOA (103). Le rapport cyclique d'un signal d'horloge dans le circuit de commande GOA (103) est réglé de façon à en ajuster la distribution d'énergie harmonique, à modifier l'amplitude d'énergie harmonique d'ordre supérieur correspondant à différentes amplifications, et à en réduire l'énergie totale avec des points de fréquence correspondants d'une partie plaquette à dissipateur de chaleur noyé pour satisfaire globalement une norme de rayonnement électromagnétique.
(ZH)
一种改善GOA电路电磁辐射的驱动装置(100)及其方法,其中改善GOA电路电磁辐射的驱动装置(100)包括:时序控制器(101)、电平转换器(102)以及GOA控制电路(103),通过调整GOA控制电路(103)中时钟信号的占空比来调整其谐波能量的分布,改变对应不同倍率的高次谐波能量大小,降低其与机芯板部分的相应频率点的总能量,使其整体满足电磁辐射的标准。
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