公开(公告)号：US20190237031A1

公开(公告)日：2019-08-01

申请号：US16235530

申请日：2018-12-28

Applicant: LG DISPLAY CO., LTD.

Inventor： HwiJe CHO ,  SeungHun HAN ,  Jewon PARK ,  ChulSang SHIN ,  JeongGeun LEE ,  JaeKwang LEE

IPC: G09G3/36 ,  G02F1/1362 ,  G02F1/133

Abstract: A liquid crystal display (LCD) device, a controller thereof, and a driving method thereof are provided. The LCD device can include a liquid crystal display panel configured to display images, on which data lines and gate lines are disposed, and subpixels defined by the data lines and the gate lines are arranged; a gate driver configured to supply a scanning signal to the gate lines; a data driver configured to supply a data voltage to the data lines; and a controller configured to control the gate driver and the data driver, in which the LCD device operates in a first type of inversion when a driving frequency is in a first driving frequency range, and the LCD device operates in a second type of inversion different from the first type of inversion when the driving frequency is in a second driving frequency range different from the first driving frequency range.

公开(公告)号：US20210173244A1

公开(公告)日：2021-06-10

申请号：US17102208

申请日：2020-11-23

Applicant: LG Display Co., Ltd.

Inventor： Hoon JEONG ,  ChulSang SHIN ,  Jin HER

IPC: G02F1/1368 ,  G02F1/1362 ,  H01L27/12 ,  H01L27/32 ,  H01L29/786

Abstract: Embodiments of the disclosure are related to display devices, a planarization layer disposed on a thin film transistor in a display panel is removed to form an opening in the planarization layer, and a top gate electrode is disposed in the opening of the planarization layer, thus a driving performance of the thin film transistor is enhanced while reducing a size of the thin film transistor disposed in the display panel. Furthermore, the top gate electrode is implemented using an electrode layer located on an upper layer of the planarization layer, the thin film transistor including double gate electrodes is implemented easily without an additional process.