公开(公告)号：US11189229B2

公开(公告)日：2021-11-30

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 ,  G09G3/3225 ,  G09G3/3208 ,  G09G3/36

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.

公开(公告)号：US10388216B2

公开(公告)日：2019-08-20

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: G09G3/3233

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.