公开(公告)号：US11114034B2

公开(公告)日：2021-09-07

申请号：US16921251

申请日：2020-07-06

Applicant: LG Display Co., Ltd.

Inventor： Donggun Lee ,  Kyujin Kim ,  Taehun Kim ,  Seungjin Yoo

IPC: G09G3/3258 ,  G09G3/3291 ,  G09G3/3266

Abstract: A display device is proposed, the display device including a display panel and a driving circuit, and pixels included in the display panel includes a driving transistor, a light emitting element, a capacitor, and first to sixth switching transistors T1 to T6. T1 senses threshold voltage of the driving transistor, the capacitor stores data voltage and a threshold voltage in both electrodes, T2 applies data voltage to the capacitor, T3 initializes the storage capacitor to reference voltage, and T4 initialize the light emitting element to reference voltage, T5 controls current flow between the driving transistor and the light emitting element, and T6 connects both electrodes of the capacitor. The driving circuit divides one frame into an initialization period, a program period, and a light emission period to drive a pixel, and stops light emission of the light emitting device and make equal voltage across the capacitor, in the initialization period.

公开(公告)号：US09910329B2

公开(公告)日：2018-03-06

申请号：US14839467

申请日：2015-08-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyujin Kim ,  Ooksang Yoo ,  Taehun Kim

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

CPC classification number: G02F1/136213 ,  G02F1/136286 ,  G02F1/1368 ,  G09G3/3614 ,  G09G3/3655 ,  G09G3/3688 ,  G09G2300/0413 ,  G09G2300/0426 ,  G09G2300/0876 ,  G09G2310/0297 ,  G09G2310/066 ,  G09G2370/08

Abstract: A liquid crystal display (LCD) device according to an embodiment includes a liquid crystal panel in which a gate line, a dummy data line, and a data line are disposed, a timing controller configured to generate compensation data, a data driver configured to generate a compensation data voltage on the basis of the compensation data, provide the generated compensation data voltage to the dummy data line, and provide a data voltage for displaying an image to the data line, a common electrode configured to provide a common voltage to pixels of the liquid crystal panel, and a compensation capacitor positioned outside of a pixel array of the liquid crystal panel and charged upon receiving the compensation data voltage.