公开(公告)号：US12230213B2

公开(公告)日：2025-02-18

申请号：US18470890

申请日：2023-09-20

Applicant: LG Display Co., Ltd.

Inventor： Se-Hwan Kim ,  Tae-Keun Lee ,  Min-Su Kim ,  Hae-Jun Park ,  Young-Taek Hong

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291 ,  G09G3/3233

Abstract: A gate driver includes a first scan signal generator configured to output a logic voltage for driving of a scan transistor through a plurality of stages connected in cascade, the scan transistor performing a switching operation to transfer a data voltage to a driving transistor of a pixel, a second scan signal generator configured to output a logic voltage for driving of a sensing transistor through the plurality of stages, the sensing transistor sensing deterioration of a light emitting element of the pixel, a light emission control signal generator configured to output a logic voltage for control of a light emission control transistor of the pixel through the plurality of stages, and an initialization voltage generator driven by logic voltages received from some nodes of the first scan signal generator based on the light emission control signal generator to supply an initialization voltage to the pixel.

公开(公告)号：US11367397B2

公开(公告)日：2022-06-21

申请号：US17126575

申请日：2020-12-18

Applicant: LG Display Co., Ltd.

Inventor： Se-Hwan Kim ,  Tae-Keun Lee ,  Min-Su Kim ,  Hae-Jun Park ,  Young-Taek Hong

IPC: G09G3/3233 ,  G09G3/3258 ,  G09G3/3291 ,  G09G3/3266

Abstract: A gate driver includes a first scan signal generator configured to output a logic voltage for driving of a scan transistor through a plurality of stages connected in cascade, the scan transistor performing a switching operation to transfer a data voltage to a driving transistor of a pixel, a second scan signal generator configured to output a logic voltage for driving of a sensing transistor through the plurality of stages, the sensing transistor sensing deterioration of a light emitting element of the pixel, a light emission control signal generator configured to output a logic voltage for control of a light emission control transistor of the pixel through the plurality of stages, and an initialization voltage generator driven by logic voltages received from some nodes of the first scan signal generator based on the light emission control signal generator to supply an initialization voltage to the pixel.

公开(公告)号：US11798482B2

公开(公告)日：2023-10-24

申请号：US17745242

申请日：2022-05-16

Applicant: LG Display Co., Ltd.

Inventor： Se-Hwan Kim ,  Tae-Keun Lee ,  Min-Su Kim ,  Hae-Jun Park ,  Young-Taek Hong

IPC: G09G3/3258 ,  G09G3/3291 ,  G09G3/3266 ,  G09G3/3233

CPC classification number: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291 ,  G09G3/3233 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/0626 ,  G09G2360/18

Abstract: A gate driver includes a first scan signal generator configured to output a logic voltage for driving of a scan transistor through a plurality of stages connected in cascade, the scan transistor performing a switching operation to transfer a data voltage to a driving transistor of a pixel, a second scan signal generator configured to output a logic voltage for driving of a sensing transistor through the plurality of stages, the sensing transistor sensing deterioration of a light emitting element of the pixel, a light emission control signal generator configured to output a logic voltage for control of a light emission control transistor of the pixel through the plurality of stages, and an initialization voltage generator driven by logic voltages received from some nodes of the first scan signal generator based on the light emission control signal generator to supply an initialization voltage to the pixel.

公开(公告)号：US20250148990A1

公开(公告)日：2025-05-08

申请号：US19019269

申请日：2025-01-13

Applicant: LG Display Co., Ltd.

Inventor： Se-Hwan Kim ,  Tae-Keun Lee ,  Min-Su Kim ,  Hae-Jun Park ,  Young-Taek Hong

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291

Abstract: A gate driver includes a first scan signal generator configured to output a logic voltage for driving of a scan transistor through a plurality of stages connected in cascade, the scan transistor performing a switching operation to transfer a data voltage to a driving transistor of a pixel, a second scan signal generator configured to output a logic voltage for driving of a sensing transistor through the plurality of stages, the sensing transistor sensing deterioration of a light emitting element of the pixel, a light emission control signal generator configured to output a logic voltage for control of a light emission control transistor of the pixel through the plurality of stages, and an initialization voltage generator driven by logic voltages received from some nodes of the first scan signal generator based on the light emission control signal generator to supply an initialization voltage to the pixel.

公开(公告)号：US10991302B1

公开(公告)日：2021-04-27

申请号：US16918882

申请日：2020-07-01

Applicant: LG Display Co., Ltd.

Inventor： Hae-Jun Park ,  Tae-Keun Lee ,  Min-Su Kim ,  Se-Hwan Kim ,  Young-Taek Hong

IPC: G09G3/3233 ,  G09G3/3291 ,  G09G3/3266

Abstract: A display device according to the present disclosure comprises a substrate including a display area and a non-display area, pixel circuits each including at least one n-type transistor and at least one p-type transistor and arranged in the display area, and a gate driving circuit included in the non-display area and outputting a first scan signal for applying a data voltage to driving transistors of the pixel circuits for an initialization time and a second scan signal that represents a same logic voltage as the first scan signal for the initialization time and represents a logic voltage reverse to the first scan signal for a sampling time. A first scan signal generator and a second scan signal generator are integrated using nodes Q/QB of a logic circuit to reduce a bezel size.