公开(公告)号：US20170162127A1

公开(公告)日：2017-06-08

申请号：US15367531

申请日：2016-12-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Kook PARK ,  Ju Gon SEOK ,  Min Tak LEE ,  Sang Min LIM

IPC: G09G3/3291 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G2300/0417 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/103

Abstract: A display device includes an image controller that analyzes first image data to determine whether a same image is displayed for no less than a predetermined threshold time. The image controller sets a low grayscale region having grayscale values of no more than a predetermined threshold low grayscale value when the same image is displayed for no less than a threshold time. The image controller then receives second image data and transmits a control signal to allow a transistor hysteresis reset signal to be transmitted to pixels of the display in the low grayscale region. A data driver transmits the transistor hysteresis reset signal to the pixels in the low grayscale region based on the control signal.

公开(公告)号：US20200152129A1

公开(公告)日：2020-05-14

申请号：US16681551

申请日：2019-11-12

Applicant: Samsung Display Co., Ltd.

Inventor： Jung Kook PARK ,  Dong Wan PARK ,  Sang Min LIM

IPC: G09G3/3258

Abstract: A display device includes: a display panel including a plurality of pixels; a data driver configured to supply a black voltage to the display panel; and a controller configured to: set an initial driving power voltage of the display panel; decide a bright spot voltage of the display panel while the data driver is supplying the black voltage to the display panel; and set any one of the bright spot voltage and the initial driving power voltage as a final driving power voltage.