公开(公告)号：US20240257707A1

公开(公告)日：2024-08-01

申请号：US18529290

申请日：2023-12-05

Applicant: LG Display Co., Ltd.

Inventor： Jaeik YOO ,  JungHyeon KIM ,  SangHo YU ,  Tae-Wook KIM

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/2096 ,  G09G3/32 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2320/048 ,  G09G2330/021

Abstract: A controller and a display device including the controller are discussed. The display device can perform a compensation based on a stress value for each sub-pixel and update a correction table used for compensation using a sensing value acquired at a preset period. As such, it is possible to improve the accuracy of real-time compensation. In addition, since it is possible to compensate for a sub-pixel for which a sensing value is not acquired using an indirect gain according to the ratio of the stress values of the sub-pixel to a sensing value, the accuracy of compensation can be improved even if sensing for each sub-pixel sharing a sensing line may not be easy.

公开(公告)号：US20240194129A1

公开(公告)日：2024-06-13

申请号：US18508951

申请日：2023-11-14

Applicant: LG Display Co., Ltd.

Inventor： Seokhyun HONG ,  Tae-Wook KIM ,  Jaeyoon BAE

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/027 ,  G09G2310/061 ,  G09G2310/08

Abstract: According to embodiments of the present disclosure, there may be provided a controller, a display device and a driving method. In consideration of that a hysteresis by an image data voltage supplied to a subpixel during an active time may exert an influence on a real-time sensing process, by correcting a reference sensing driving data voltage on the basis of an offset voltage, it is possible to correct the influence of a hysteresis exerted on sensing of the characteristic value of a driving transistor.