公开(公告)号：US12094436B2

公开(公告)日：2024-09-17

申请号：US18065610

申请日：2022-12-13

Applicant: LG Display Co., Ltd.

Inventor： Jogtaek Kim ,  Nakyoon Kim ,  Hogeun Koo

IPC: G09G5/00

CPC classification number: G09G5/008 ,  G09G2310/061 ,  G09G2330/021 ,  G09G2370/10

Abstract: Embodiments of the disclosure relate to a control circuit, a display device, and a method for driving a main processor. Specifically, there may be provided a control circuit, a display device, and a method for driving a main processor which may reduce power consumption in the transmission/reception circuit connected with the interface by powering off at least one of the source transmission/reception circuit or sink transmission/reception circuit electrically connected with the auxiliary channel AUX during at least a partial period of the vertical blank period.

公开(公告)号：US12277913B2

公开(公告)日：2025-04-15

申请号：US18499105

申请日：2023-10-31

Applicant: LG Display Co., Ltd.

Inventor： Nakyoon Kim ,  Changhoon Jeon ,  Hongsoon Kim

IPC: G09G3/30 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/3291

Abstract: The present disclosure relates to display device, display panel, and display driving method. Disclosed herein is a display device including a display panel in which a light emitting element, a driving transistor configured to provide a driving current to a light emitting element using a driving voltage, and a plurality of switching transistors configured to control driving of the driving transistor are disposed; a gate driving circuit configured to supply a plurality of scan signals to the display panel through a plurality of gate lines; an emission driving circuit configured to supply a plurality of emission signals to the display panel through a plurality of emission signal lines; a data driving circuit configured to supply a data voltage to the display panel; and a timing controller configured to, in a low speed mode in which the display panel is operated at a low driving frequency, control the driving current to be applied to the driving transistor during a first emission control period after a bias voltage is applied to the driving transistor, and control the driving current to be applied to the light emitting element through the driving transistor during a second emission control period.

公开(公告)号：US20240062728A1

公开(公告)日：2024-02-22

申请号：US18499105

申请日：2023-10-31

Applicant: LG Display Co., Ltd.

Inventor： Nakyoon Kim ,  ChangHoon Jeon ,  Hongsoon Kim

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

CPC classification number: G09G3/3291 ,  G09G3/2096 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/0257

Abstract: The present disclosure relates to display device, display panel, and display driving method. Disclosed herein is a display device including a display panel in which a light emitting element, a driving transistor configured to provide a driving current to a light emitting element using a driving voltage, and a plurality of switching transistors configured to control driving of the driving transistor are disposed; a gate driving circuit configured to supply a plurality of scan signals to the display panel through a plurality of gate lines; an emission driving circuit configured to supply a plurality of emission signals to the display panel through a plurality of emission signal lines; a data driving circuit configured to supply a data voltage to the display panel; and a timing controller configured to, in a low speed mode in which the display panel is operated at a low driving frequency, control the driving current to be applied to the driving transistor during a first emission control period after a bias voltage is applied to the driving transistor, and control the driving current to be applied to the light emitting element through the driving transistor during a second emission control period.

公开(公告)号：US12094424B2

公开(公告)日：2024-09-17

申请号：US17974320

申请日：2022-10-26

Applicant: LG DISPLAY CO., LTD.

Inventor： Hong Soon Kim ,  Chan Park ,  Nakyoon Kim

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

CPC classification number: G09G3/3291 ,  G09G3/2074 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2330/021

Abstract: Embodiments of the disclosure relate to a display device and a data driving circuit. Specifically, there may be provided a display device with enhanced power efficiency and a data driving circuit by providing a display device including a display panel divided into an always-on display area displaying information during a standby screen period and a black grayscale area except for the always-on display area, an image display voltage output circuit outputting a data voltage to input to the always-on display area during the standby screen period, and a voltage stabilization circuit outputting a constant voltage to input to at least a partial area of the black grayscale area during the standby screen period.

公开(公告)号：US20230145805A1

公开(公告)日：2023-05-11

申请号：US17975512

申请日：2022-10-27

Applicant: LG Display Co., Ltd.

Inventor： Nakyoon Kim ,  ChangHoon Jeon ,  Hongsoon Kim

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

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G3/2096 ,  G09G2310/08 ,  G09G2300/0842 ,  G09G2300/0426 ,  G09G2320/0257 ,  G09G2320/0247

Abstract: The present disclosure relates to display device, display panel, and display driving method. Disclosed herein is a display device including a display panel in which a light emitting element, a driving transistor configured to provide a driving current to a light emitting element using a driving voltage, and a plurality of switching transistors configured to control driving of the driving transistor are disposed; a gate driving circuit configured to supply a plurality of scan signals to the display panel through a plurality of gate lines; an emission driving circuit configured to supply a plurality of emission signals to the display panel through a plurality of emission signal lines; a data driving circuit configured to supply a data voltage to the display panel; and a timing controller configured to, in a low speed mode in which the display panel is operated at a low driving frequency, control the driving current to be applied to the driving transistor during a first emission control period after a bias voltage is applied to the driving transistor, and control the driving current to be applied to the light emitting element through the driving transistor during a second emission control period.

公开(公告)号：US11830443B2

公开(公告)日：2023-11-28

申请号：US17975512

申请日：2022-10-27

Applicant: LG Display Co., Ltd.

Inventor： Nakyoon Kim ,  ChangHoon Jeon ,  Hongsoon Kim

IPC: G09G3/30 ,  G09G3/3291 ,  G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3291 ,  G09G3/2096 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/0257

Abstract: The present disclosure relates to display device, display panel, and display driving method. Disclosed herein is a display device including a display panel in which a light emitting element, a driving transistor configured to provide a driving current to a light emitting element using a driving voltage, and a plurality of switching transistors configured to control driving of the driving transistor are disposed; a gate driving circuit configured to supply a plurality of scan signals to the display panel through a plurality of gate lines; an emission driving circuit configured to supply a plurality of emission signals to the display panel through a plurality of emission signal lines; a data driving circuit configured to supply a data voltage to the display panel; and a timing controller configured to, in a low speed mode in which the display panel is operated at a low driving frequency, control the driving current to be applied to the driving transistor during a first emission control period after a bias voltage is applied to the driving transistor, and control the driving current to be applied to the light emitting element through the driving transistor during a second emission control period.

公开(公告)号：US11062651B2

公开(公告)日：2021-07-13

申请号：US16688048

申请日：2019-11-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Nakyoon Kim ,  Jisu Kim

IPC: G09G3/3233 ,  G09G3/3291 ,  H02M3/04 ,  H02J7/00

Abstract: A display device can include a display unit including data lines, gate lines crossing the data lines and pixels; a voltage generating unit configured to generate driving voltages for driving the display unit based on a voltage from a battery; and a data driver configured to convert input image data into data voltages and output the data voltages to the data lines, wherein the voltage generating unit includes a battery current control unit configured to control a magnitude of a low potential driving voltage applied to cathode electrodes of the pixels according to an amount of a battery output current flowing from the battery to the voltage generating unit, and wherein the battery current control unit is configured to increase the low potential driving voltage when the battery output current is equal to or greater than a predetermined threshold value.