公开(公告)号：US09721504B2

公开(公告)日：2017-08-01

申请号：US14962815

申请日：2015-12-08

Applicant: LG DISPLAY CO., LTD.

Inventor： SangYun Kim ,  JunHyeok Yang

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/3225

CPC classification number: G09G3/3233 ,  G09G3/3225 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2330/12

Abstract: Discussed are a current sensing circuit capable of compensating for degradation of an organic light emitting diode by sensing a current of the organic light emitting diode, and an organic light emitting diode display having the same. The current sensing circuit according to an embodiment includes a plurality of sensing modules configured to sense a pixel current from a display panel having an organic light emitting diode on each of a plurality of pixels, and to output a sensing voltage according to a sensing result; and an analog-to-digital converter configured to convert the sensing voltage into an analog-to-digital voltage, and to output sensing data.