公开(公告)号：US20240185784A1

公开(公告)日：2024-06-06

申请号：US18367277

申请日：2023-09-12

Applicant: LG Display Co., Ltd.

Inventor： Kyu-Jin KIM ,  Taehun KIM

IPC: G09G3/3233 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2310/0294 ,  G09G2320/0233

Abstract: A pixel circuit for a display device can include a light-emitting element configured to emit light based on driving current, a driving transistor to control the driving current, and a storage capacitor. The driving transistor includes a gate electrode, a source electrode, and a drain electrode, where a data voltage is applied to the source electrode. An anode electrode of the light-emitting element is coupled to the drain electrode. Further, the storage capacitor has a first electrode connected to a high-potential voltage and a second electrode coupled to the gate electrode of the driving transistor. During an initialization period of a refresh period of the display device, the pixel circuit applies a first initialization voltage to the second electrode of the storage capacitor, applies a second initialization voltage to the anode electrode of the light-emitting element, and applies an on bias stress voltage to the source electrode of the driving transistor.

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.