公开(公告)号：US20170162119A1

公开(公告)日：2017-06-08

申请号：US15367583

申请日：2016-12-02

Applicant: LG DISPLAY CO., LTD.

Inventor： EungKyu KIM ,  YongKyu PARK ,  Seokyu JANG

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/32

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0214 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2330/021 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276

Abstract: A display device includes a switching circuit; a sub-pixel having a driving transistor and an organic light emitting diode (OLED) with an anode connected to the driving transistor; a driving voltage supply line to supply a driving voltage to the OLED through the driving transistor; a base voltage supply line connected to a cathode of the OLED through the switching circuit; a ground line to supply a ground voltage to the switching circuit; a first capacitor between the driving voltage supply line and the ground line; and a second capacitor between the base voltage supply line and the ground line. The switching circuit selectively supplies one of a first level voltage and a second level voltage as the base voltage, and the second level voltage is higher than the first level voltage at the ground voltage.

公开(公告)号：US20240290287A1

公开(公告)日：2024-08-29

申请号：US18421387

申请日：2024-01-24

Applicant: LG DISPLAY CO., LTD.

Inventor： YongKyu PARK ,  JaeKook AHN

IPC: G09G3/3291 ,  G09G3/32 ,  H02M3/158

CPC classification number: G09G3/3291 ,  G09G3/32 ,  G09G2310/027 ,  G09G2310/0275 ,  G09G2310/061 ,  H02M3/1582

Abstract: A display device and a method of driving the same are disclosed, and more specifically, the display device includes a source voltage generation circuit, and enabling the source voltage generation circuit to receive a variable source voltage control signal from a controller and supply a variable source voltage corresponding to the variable source voltage control signal, and a method of driving the display device.

公开(公告)号：US20200082759A1

公开(公告)日：2020-03-12

申请号：US16553790

申请日：2019-08-28

Applicant: LG Display Co., Ltd.

Inventor： GeunWoo LEE ,  YongKyu PARK ,  MunJun LEE

IPC: G09G3/3258

Abstract: Disclosed is an organic light emitting display apparatus. The organic light emitting display apparatus outputs black gate pulses for a black image and sensing gate pulses for sensing in a vertical blank period and differently sets timings, at which the sensing gate pulses are output after the black gate pulses are output, for each gate line.