公开(公告)号：US10304406B2

公开(公告)日：2019-05-28

申请号：US15380322

申请日：2016-12-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jeong-Oh Jin ,  Hyeok-Tae Kwon ,  Dongkeon Kim ,  Seonhye Kim ,  Se-Won Min ,  Hyunjung Son ,  Utah Choi

IPC: G09G3/36 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368

Abstract: A display apparatus includes a display panel including a switching element connected to a data line and a gate line, a pixel electrode connected to the switching element, a common electrode facing the pixel electrode and a liquid crystal layer disposed between the pixel electrode and the common electrode. The display apparatus further includes a data driving circuit configured to convert image data to a data voltage. The display apparatus further includes a driving voltage generator configured to generate a common voltage, in response to a voltage control signal from a timing controller, to the common electrode and the data driving circuit, which is configured to output the common voltage to the pixel electrode during an initial setting period when power is turned on to the display apparatus.

公开(公告)号：US11183136B2

公开(公告)日：2021-11-23

申请号：US16381395

申请日：2019-04-11

Applicant: Samsung Display Co., Ltd.

Inventor： Dongkeon Kim ,  Seonghyeon Kim ,  Suji Han

IPC: G09G3/36

Abstract: A display device includes a display panel including gate lines, data lines, and pixels connected to the gate lines and the data lines and a driving circuit which controls the display panel in response to an image signal, a control signal, and a mode signal from an outside to display an image through the display panel. The driving circuit converts the image signal to data voltage signals corresponding to a first gamma curve to apply the data voltage signals to the data lines when the mode signal represents a normal mode and converts the image signal to data voltage signals corresponding to a second gamma curve different from the first gamma curve to apply the data voltage signals to the data lines when the mode signal represents a frequency variable mode.