公开(公告)号：US20150379937A1

公开(公告)日：2015-12-31

申请号：US14586567

申请日：2014-12-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Taegung KIM ,  Junghyeon KIM ,  Jinhan YOON

IPC: G09G3/32 ,  G09G3/00

CPC classification number: G09G3/3291 ,  G09G3/006 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3275 ,  G09G2300/0819 ,  G09G2300/0828 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0223 ,  G09G2320/0285 ,  G09G2320/029 ,  G09G2320/045 ,  G09G2330/12

Abstract: An organic light emitting display is provided which offers shorter sensing time and higher sensing accuracy when sensing variations in electrical characteristics of a driving element. The organic light emitting display can include: a display panel with a plurality of pixels; a gate driving circuit that generates a sensing gate pulse corresponding to one line sensing ON time in a sensing operation and sequentially supplies the same to gate lines in a line sequential manner; a data driving circuit comprising a plurality of current integrators that perform an integration of the source-drain current of the driving TFT of each pixel input through the sensing lines and an ADC that sequentially digitizes the output of the current integrators to output digital sensed values; and a timing controller that controls the operations of the gate driving circuit and data driving circuit.

Abstract translation: 提供一种有机发光显示器，当感测驱动元件的电特性的变化时，其提供较短的感测时间和更高的感测精度。 有机发光显示器可以包括：具有多个像素的显示面板; 栅极驱动电路，其在感测动作中产生对应于一行感测导通时间的感测门脉冲，并且以行顺序方式依次将其提供给栅极线; 数据驱动电路，包括多个电流积分器，其执行通过感测线输入的每个像素的驱动TFT的源极 - 漏极电流的积分;以及ADC，其顺序数字化当前积分器的输出以输出数字感测值; 以及控制门驱动电路和数据驱动电路的动作的定时控制器。