公开(公告)号：US20190180695A1

公开(公告)日：2019-06-13

申请号：US16117885

申请日：2018-08-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： TAE-SEOK HA ,  Kyung-hun Lee ,  Sucheol Kang ,  Jongwoon Kim ,  Kyu-jin Park ,  Sung-jae Park ,  Seung-woon Shin

IPC: G09G3/3291 ,  G09G3/3266 ,  G09G3/36

Abstract: A display device includes a display panel including gate lines, data lines, and pixels individually connected to a corresponding gate line and data line, a gate driver driving the gate lines, a data driver driving the data lines, and a driving controller. The driving controller receives, from an external source, first image signals and a variable frequency signal indicating an operation frequency (frame rate) for the display device. The driving controller converts the first image signals to second image signals by adding a compensation value corresponding to the operation frequency to the first image signals, and outputs the second image signals to the data driver. Embodiments may compensate for luminance reduction/variation and reduce image artifacts that otherwise occur due to variable frequency operation. An alternative embodiment dynamically controls an amount of light output from a backlight according to the variable frequency signal.