公开(公告)号：US20180226045A1

公开(公告)日：2018-08-09

申请号：US15866145

申请日：2018-01-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Soo SOHN ,  Min Je KIM ,  Jin Hyuk JANG

IPC: G09G3/36 ,  G02F1/133

CPC classification number: G09G3/3688 ,  G02F1/13306 ,  G02F2203/30 ,  G09G3/3607 ,  G09G3/3614 ,  G09G3/3655 ,  G09G5/02 ,  G09G2320/0209 ,  G09G2320/0247 ,  G09G2340/16 ,  G09G2360/145 ,  G09G2360/16 ,  G09G2360/18

Abstract: A display device includes: a data mapping portion including a memory having addresses corresponding to locations of pixels and which maps an input image signal to a corresponding address; a pattern detector which detects an image quality deterioration pattern in pattern detection areas from the mapped input image signal; a pattern counting portion which generates pattern information by counting the image quality deterioration pattern; a data analyzing portion which divides the input image signal for each frame and selects a representative value of an input image signal of a frame; and a controller which generates an image data signal based on a first inversion method or a second inversion method by determining whether the counted number of the image quality deterioration pattern exceeds a threshold value based on the pattern information, and determines a level of a common voltage corresponding to the representative value.