公开(公告)号：US09318054B2

公开(公告)日：2016-04-19

申请号：US13692756

申请日：2012-12-03

Applicant: LG Display Co., Ltd.

Inventor： Jung-Min Lee ,  Jae-Ho Sim

IPC: G09G3/30 ,  G09G3/32

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0256 ,  G09G2310/0264 ,  G09G2320/043 ,  G09G2320/045

Abstract: An organic light emitting diode (OLED) display device and a method of driving the same are provided. A time point at which each of transistors is turned on is controlled without using an additional transistor so that a node connected to a source electrode of a driver transistor can be floated, and a node connected to a gate electrode of the driver transistor can be initialized to an initialization voltage level. Thus, initialization characteristics can be improved to enhance degradation of response characteristics and luminance, and a threshold voltage of the driver transistor and occurrence of a ripple at a high-potential voltage terminal can be compensated.

Abstract translation: 提供了一种有机发光二极管（OLED）显示装置及其驱动方法。 在不使用附加晶体管的情况下控制晶体管导通的时间点，使得连接到驱动晶体管的源电极的节点可以浮置，并且可以初始化连接到驱动晶体管的栅电极的节点 达到初始化电压电平。 因此，可以改善初始化特性以增强响应特性和亮度的劣化，并且可以补偿驱动晶体管的阈值电压和在高电位电压端子处产生纹波。