公开(公告)号：US11437413B2

公开(公告)日：2022-09-06

申请号：US17126995

申请日：2020-12-18

Applicant: LG Display Co., Ltd.

Inventor： Cheolho Lee ,  Sunhwan Kim

IPC: H01L27/24 ,  H01L27/12 ,  H01L23/00

Abstract: A display device includes a display panel including a display area and a non-display area, a first output pad set, a second output pad set, and a buffer pad set that are disposed in the non-display area, and a path change circuit. In an exemplary embodiment, the path change circuit is configured to change a signal delivery path such that a signal delivered through the first output pad set or the second output pad set is delivered through the buffer pad set, when an enable signal is input.

公开(公告)号：US20230410748A1

公开(公告)日：2023-12-21

申请号：US18462093

申请日：2023-09-06

Applicant: LG Display Co., Ltd.

Inventor： Won-Seok Song ,  Bonghwan Kim ,  Sunhwan Kim ,  Mirae Shin

IPC: G09G3/3233 ,  G09G3/20 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/2096 ,  G09G3/3291 ,  G09G2330/021 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2300/0861 ,  G09G2310/0297 ,  G09G2300/0819 ,  G09G2320/0247 ,  G09G2320/0233 ,  G09G2330/028

Abstract: A display device comprises: a display panel including a light emitting element, a driving transistor providing a driving current to the light emitting element using a high potential driving voltage and switching transistors controlling the driving transistor; a gate driving circuit supplying scan signals to the display panel; a data driving circuit generating a data voltage or a bias voltage using a feedback high potential driving voltage transmitted through a high potential driving voltage feedback line; and a timing controller controlling the gate driving circuit and the data driving circuit so that the data voltage is supplied to the display panel in a first period at a low speed mode which the display panel is driven at predetermined driving frequency less than a frequency of a high speed mode and the bias voltage is supplied to the display panel in a second period at a low speed mode.

公开(公告)号：US12159586B2

公开(公告)日：2024-12-03

申请号：US18462093

申请日：2023-09-06

Applicant: LG Display Co., Ltd.

Inventor： Won-Seok Song ,  Bonghwan Kim ,  Sunhwan Kim ,  Mirae Shin

IPC: G09G3/3233 ,  G09G3/20 ,  G09G3/3291

Abstract: A display device comprises: a display panel including a light emitting element, a driving transistor providing a driving current to the light emitting element using a high potential driving voltage and switching transistors controlling the driving transistor; a gate driving circuit supplying scan signals to the display panel; a data driving circuit generating a data voltage or a bias voltage using a feedback high potential driving voltage transmitted through a high potential driving voltage feedback line; and a timing controller controlling the gate driving circuit and the data driving circuit so that the data voltage is supplied to the display panel in a first period at a low speed mode which the display panel is driven at predetermined driving frequency less than a frequency of a high speed mode and the bias voltage is supplied to the display panel in a second period at a low speed mode.

公开(公告)号：US11783774B2

公开(公告)日：2023-10-10

申请号：US17948955

申请日：2022-09-20

Applicant: LG Display Co., Ltd.

Inventor： Won-Seok Song ,  Bonghwan Kim ,  Sunhwan Kim ,  Mirae Shin

IPC: G09G3/3233 ,  G09G3/20 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/2096 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2330/021 ,  G09G2330/028

Abstract: A display device comprises: a display panel including a light emitting element, a driving transistor providing a driving current to the light emitting element using a high potential driving voltage and switching transistors controlling the driving transistor; a gate driving circuit supplying scan signals to the display panel; a data driving circuit generating a data voltage or a bias voltage using a feedback high potential driving voltage transmitted through a high potential driving voltage feedback line; and a timing controller controlling the gate driving circuit and the data driving circuit so that the data voltage is supplied to the display panel in a first period at a low speed mode which the display panel is driven at predetermined driving frequency less than a frequency of a high speed mode and the bias voltage is supplied to the display panel in a second period at a low speed mode.

公开(公告)号：US20230143180A1

公开(公告)日：2023-05-11

申请号：US17948955

申请日：2022-09-20

Applicant: LG Display Co., Ltd.

Inventor： Won-Seok Song ,  Bonghwan Kim ,  Sunhwan Kim ,  Mirae Shin

IPC: G09G3/3233 ,  G09G3/20 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/2096 ,  G09G3/3291 ,  G09G3/2007 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2300/0861 ,  G09G2310/0297 ,  G09G2330/021

Abstract: A display device comprises: a display panel including a light emitting element, a driving transistor providing a driving current to the light emitting element using a high potential driving voltage and switching transistors controlling the driving transistor; a gate driving circuit supplying scan signals to the display panel; a data driving circuit generating a data voltage or a bias voltage using a feedback high potential driving voltage transmitted through a high potential driving voltage feedback line; and a timing controller controlling the gate driving circuit and the data driving circuit so that the data voltage is supplied to the display panel in a first period at a low speed mode which the display panel is driven at predetermined driving frequency less than a frequency of a high speed mode and the bias voltage is supplied to the display panel in a second period at a low speed mode.