公开(公告)号：US20240265881A1

公开(公告)日：2024-08-08

申请号：US18421591

申请日：2024-01-24

Applicant: LG Display Co., Ltd.

Inventor： Won-Seok Song

IPC: G09G3/3275 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/3266 ,  H10K59/131

CPC classification number: G09G3/3275 ,  G09G3/2096 ,  G09G3/3225 ,  G09G3/3266 ,  H10K59/131 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0297 ,  G09G2320/0252

Abstract: A display device includes a timing controlling circuit configured to generate image data, a data control signal and a gate control signal; a data driving circuit configured to generate a data signal using the image data and the data control signal and generate a mux signal using an offset signal, a high level voltage signal and the data signal; a gate driving circuit configured to generate gate signals, emission signals using the gate control signal; and a display panel including pixels that are configured to display an image using the data signal, the mux signal, the gate signals, and the emission signals, wherein the mux signal is one of the high level voltage signal and voltage that is a sum of the data signal and the offset signal, and the mux signal is supplied to a power line that is connected to a pixel included in the display panel.

公开(公告)号：US20240321223A1

公开(公告)日：2024-09-26

申请号：US18733342

申请日：2024-06-04

Applicant: LG Display Co., Ltd.

Inventor： Jaemin Kim ,  Subin Park ,  Bonghwan Kim ,  Won-Seok Song

IPC: G09G3/3291 ,  H01L21/768 ,  H01L23/522 ,  H01L29/08 ,  H01L29/417 ,  H01L29/78

CPC classification number: G09G3/3291 ,  H01L21/76877 ,  H01L23/5226 ,  H01L29/0847 ,  H01L29/41791 ,  H01L29/785 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0247

Abstract: Embodiments of the present disclosure relate to a display device, comprising: a display panel including a light emitting element, a driving transistor configured to provide a driving current to the light emitting element, and a plurality of switching transistors configured to control an operation of the driving transistor; a gate driving circuit configured to supply a plurality of scan signals to the display panel; a data driving circuit configured to supply a plurality of data voltages to the display panel; and a timing controller configured to control the gate driving circuit and the data driving circuit, wherein a bias voltage is supplied to the driving transistor in a first period in which the data voltage is supplied to the display panel at a low speed mode which the display panel is driven at a low speed driving frequency.

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：US12033590B2

公开(公告)日：2024-07-09

申请号：US18218491

申请日：2023-07-05

Applicant: LG Display Co., Ltd.

Inventor： Jaemin Kim ,  Subin Park ,  Bonghwan Kim ,  Won-Seok Song

IPC: H01L29/417 ,  G09G3/3291 ,  H01L21/768 ,  H01L23/522 ,  H01L29/08 ,  H01L29/78

CPC classification number: G09G3/3291 ,  H01L21/76877 ,  H01L23/5226 ,  H01L29/0847 ,  H01L29/41791 ,  H01L29/785 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0247

Abstract: Embodiments of the present disclosure relate to a display device, comprising: a display panel including a light emitting element, a driving transistor configured to provide a driving current to the light emitting element, and a plurality of switching transistors configured to control an operation of the driving transistor; a gate driving circuit configured to supply a plurality of scan signals to the display panel; a data driving circuit configured to supply a plurality of data voltages to the display panel; and a timing controller configured to control the gate driving circuit and the data driving circuit, wherein a bias voltage is supplied to the driving transistor in a first period in which the data voltage is supplied to the display panel at a low speed mode which the display panel is driven at a low speed driving frequency.

公开(公告)号：US11928999B2

公开(公告)日：2024-03-12

申请号：US17121386

申请日：2020-12-14

Applicant: LG Display Co., Ltd.

Inventor： Won-Seok Song ,  Su-Bin Park ,  Sung-Chang Park ,  Kyeong-Min Moon

IPC: G09G3/20 ,  G09G5/10

CPC classification number: G09G3/20 ,  G09G5/10 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0286 ,  G09G2320/064 ,  G09G2320/0653 ,  G09G2320/0673

Abstract: The present disclosure relates to a display device and a method of driving the same, and more specifically, to a display device for preventing a user from recognizing a change in luminance when a frame frequency is changed, and a method of driving the same. A display device of the present disclosure includes a display panel including a plurality of pixel regions, a gate driver configured to sequentially supply light emission control signals to horizontal lines of the display panel, a data driver configured to supply a data signal corrected by a source voltage to the display panel, and a dimming controller configured to control whether to gradually change a frame frequency and gamma correction data according to a duty ratio of the light emission control signal.

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：US11735123B2

公开(公告)日：2023-08-22

申请号：US17728676

申请日：2022-04-25

Applicant: LG Display Co., Ltd.

Inventor： Jaemin Kim ,  Subin Park ,  Bonghwan Kim ,  Won-Seok Song

IPC: G09G3/3291

CPC classification number: G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0247

Abstract: Embodiments of the present disclosure relate to a display device, comprising: a display panel including a light emitting element, a driving transistor configured to provide a driving current to the light emitting element, and a plurality of switching transistors configured to control an operation of the driving transistor; a gate driving circuit configured to supply a plurality of scan signals to the display panel; a data driving circuit configured to supply a plurality of data voltages to the display panel; and a timing controller configured to control the gate driving circuit and the data driving circuit, wherein a bias voltage is supplied to the driving transistor in a first period in which the data voltage is supplied to the display panel at a low speed mode which the display panel is driven at a low speed driving frequency.

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.