公开(公告)号：US12094420B2

公开(公告)日：2024-09-17

申请号：US17952454

申请日：2022-09-26

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyu Jin Kim ,  Moon Soo Chung

IPC: G09G3/3266 ,  G09G3/3233

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0286 ,  G09G2320/0233

Abstract: Provided are a gate driving circuit and a display device including the same. The gate driving circuit includes a first outputter for outputting a first scan pulse that swings between a gate-on voltage and a first gate-off voltage, a second outputter for outputting a second scan pulse that swings between the gate-on voltage and a second gate-off voltage, and a controller for controlling the first and second outputters. The first gate-off voltage is set to be higher or lower than the second gate-off voltage.

公开(公告)号：US12039935B2

公开(公告)日：2024-07-16

申请号：US18368930

申请日：2023-09-15

Applicant: LG Display Co., Ltd.

Inventor： Kyu Jin Kim ,  Dong Hyun Lee

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/0243 ,  G09G2310/027 ,  G09G2320/0233 ,  G09G2320/043

Abstract: A pixel circuit can include a driving element connected to a first node, a second node and a third node; a first switch element supplying an initialization voltage to the second node; a second switch element supplying a data voltage to a fourth node; and a capacitor connected between the third node and the fourth node. Also, the pixel circuit can further include a third switch element supplying a reference voltage to the third node; a fourth switch element supplying a pixel driving voltage to the first node; a fifth switch element electrically connecting the fourth node with the second node; a light emitting element driven to emit light based on a current supplied through the driving element; and a sixth switch element configured to electrically connect the third node with a fifth node connected to an anode electrode of the light emitting element.

公开(公告)号：US12039942B2

公开(公告)日：2024-07-16

申请号：US17846765

申请日：2022-06-22

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyu Jin Kim ,  Seung Taek Oh ,  Dong Gun Lee

IPC: G09G3/34 ,  G09G3/3233 ,  G09G3/3266

CPC classification number: G09G3/3406 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0626 ,  G09G2320/0686

Abstract: A display device can include a display panel to display an input image across a first subpixel region and a second subpixel region; a display panel driver to supply pixel data of the input image to subpixels of the display panel; a light source disposed under the display panel in an area overlapped by the second subpixel region; and a controller to drive the light source in an emission permitting section set within a non-driving period of a group of subpixels among the subpixels that are disposed in at least a portion of the second subpixel region.

公开(公告)号：US11830442B2

公开(公告)日：2023-11-28

申请号：US17947350

申请日：2022-09-19

Applicant: LG Display Co., Ltd.

Inventor： Seung Taek Oh ,  Kyu Jin Kim ,  Bo Yun Jung

IPC: G09G5/00 ,  G09G3/3291

CPC classification number: G09G3/3291 ,  G09G2310/0297 ,  G09G2320/0276 ,  G09G2320/0673

Abstract: The present disclosure relates to a gamma voltage generating circuit and a display device including the same. The gamma voltage generating circuit may include: a first output terminal to output a first gamma voltage set as a black grayscale voltage; a second output terminal to output a second gamma voltage set as a higher grayscale voltage than the black grayscale voltage; a third output terminal to output a third gamma voltage set as a highest grayscale voltage of the first pixel area; and a fourth output terminal to output a fourth gamma voltage set as a highest grayscale voltage of the second pixel area.

公开(公告)号：US12266316B2

公开(公告)日：2025-04-01

申请号：US17990185

申请日：2022-11-18

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyu Jin Kim ,  Bo Yun Jung

IPC: G09G5/10 ,  G09G3/3291

Abstract: The present disclosure relates to a data driving circuit and a display device including the same, and the data driving circuit includes a plurality of data input terminals to which pixel data of an input image is input, and a plurality of voltage input terminals to which gamma tab voltages for each color having different voltage levels, and common gamma tab voltages having different voltage levels are each input. When the input image includes pixel data having different grayscale values for each color, a data voltage of a corresponding color is changed when any one of the gamma tab voltages for each color is changed, and data voltages of all colors are changed when any one of the common gamma tab voltages is changed.