公开(公告)号：US20210035502A1

公开(公告)日：2021-02-04

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：US20230206877A1

公开(公告)日：2023-06-29

申请号：US17942199

申请日：2022-09-12

Applicant: LG DISPLAY CO., LTD.

Inventor： Donggun LEE ,  SeungTaek OH

IPC: G09G5/00 ,  G06T7/70

CPC classification number: G09G5/003 ,  G06T7/70 ,  G09G2320/028 ,  G09G2320/068

Abstract: A display device includes a display panel including a display area in which an optical area and a normal area are disposed, and a non-display area, a first optical electronic device disposed to overlap the optical area and generating user information, and a display controller configured to acquire information on a viewing angle at which images on the display panel can be acceptably viewed based on the user information, and adjust a ratio between red, green, and blue colors in an image displayed in the optical area among the images displayed in the display area based on the viewing angle information.

公开(公告)号：US20210043150A1

公开(公告)日：2021-02-11

申请号：US16922728

申请日：2020-07-07

Applicant: LG Display Co., Ltd.

Inventor： Donggun LEE ,  Kyujin KIM

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

Abstract: A display device is proposed, the display device including a display panel having a plurality of pixels; a data driving circuit converting pixel data to a data voltage based on a gamma compensation voltage to supply the same to the plurality of pixels through a plurality of data lines; a gate driving circuit supplying a scan signal through a gate line connected to pixels of each horizontal line of the display panel; a power supply unit supplying a pixel driving voltage to the plurality of pixels through a power line; and a gamma reference voltage adjusting unit adjusting a range of the gamma compensation voltage based on a pixel driving voltage measurement value measured in synchronization with the scan signal at a plurality of positions on the display panel.

公开(公告)号：US20240257689A1

公开(公告)日：2024-08-01

申请号：US18467514

申请日：2023-09-14

Applicant: LG Display Co., Ltd.

Inventor： Boyun JUNG ,  BoGun SEO ,  Kyu-Jin KIM ,  SeungTaek OH ,  Donggun LEE

IPC: G09G3/20 ,  G09G3/3225

CPC classification number: G09G3/2007 ,  G09G3/3225 ,  G09G2300/0842 ,  G09G2310/0232 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2330/021 ,  H10K59/122 ,  H10K59/126 ,  H10K59/40 ,  H10K59/65 ,  H10K59/873

Abstract: The present disclosure relates to a display device, a gamma correction circuit, and a display driving method that are capable of reducing a level at which a boundary between a normal area and an optical area is perceived by a user by correcting image data based on a gamma curve selected based on an area where a subpixel to which image data is to be supplied is disposed among a first gamma curve for the first driving area, a second gamma curve for the second driving area, and a third gamma curve for the boundary driving area, and outputting corrected image data.

公开(公告)号：US20210027712A1

公开(公告)日：2021-01-28

申请号：US16921274

申请日：2020-07-06

Applicant: LG Display Co., Ltd.

Inventor： Kyujin KIM ,  Taehun KIM ,  Donggun LEE

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

Abstract: A display device includes: a display panel provided with multiple pixels; a driving circuit; and a power generator, wherein each of the pixels includes: a first switching transistor of which a gate electrode is connected to the gate line, of which a first electrode is connected to the data line, and of which a second electrode is connected to a first node; a driving transistor of which a gate electrode is connected to a reference line and thus receives a reference voltage supplied from the power generator, of which a first electrode is connected to the first node, and of which a second electrode is connected to a second node; and a light-emitting device of which an anode electrode is connected to the second node, and of which a cathode electrode is connected to a power line through which the power generator supplies a low-potential power supply voltage.