公开(公告)号：US20240221555A1

公开(公告)日：2024-07-04

申请号：US18386271

申请日：2023-11-02

Applicant: LG DISPLAY CO., LTD.

Inventor： MooKyoung HONG ,  Uitaek JEONG ,  HyeonWoo LEE ,  DongKyu YANG ,  SinKyun PARK ,  JoonYoung KIM

IPC: G09G3/00 ,  G09G3/32

CPC classification number: G09G3/006 ,  G09G3/32 ,  G09G2310/0297 ,  G09G2310/08

Abstract: Aspects of the present disclosure are directed to a light emitting display apparatus includes a control driver configured to (1) delay a second data enable signal to an (n)th data enable signal by a delay period when a frequency of a first data enable signal is greater than a first reference frequency, and (2) convert input image data into image data, wherein n is a natural number greater than or equal to 2; a data driver configured to output data voltages by using the first data enable signal to the (n)th data enable signal and the image data transmitted from the control driver; and a light emitting display panel provided with pixels and data lines to which the data voltages are supplied.

公开(公告)号：US20230197011A1

公开(公告)日：2023-06-22

申请号：US17976548

申请日：2022-10-28

Applicant: LG Display Co., Ltd.

Inventor： MooKyoung HONG ,  Uitaek JEONG ,  HyeonWoo LEE ,  DongKyu YANG ,  SinKyun PARK ,  SeungWon LEE

IPC: G09G3/3266 ,  G09G3/3233 ,  G09G3/3283

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  G09G3/3283 ,  G09G2310/08 ,  G09G2300/0842 ,  G09G2320/0214 ,  G09G2320/045 ,  G09G2300/0413 ,  G09G2330/021 ,  G09G2310/0291

Abstract: A display device can include a display panel having a plurality of subpixels; a gate driving circuit configured to supply a plurality of scan signals to the display panel through a plurality of gate lines, and output a feedback voltage; a data driving circuit configured to supply a plurality of data voltages to the display panel through a plurality of data lines; a power management circuit configured to supply a plurality of driving voltages to the gate driving circuit and the data driving circuit, and supply a compensating high-potential gate voltage to the gate driving circuit based on the feedback voltage transferred from the gate driving circuit. The display device can further include a timing controller configured to control the gate driving circuit, the data driving circuit, and the power management circuit.

公开(公告)号：US20230136391A1

公开(公告)日：2023-05-04

申请号：US17963352

申请日：2022-10-11

Applicant: LG DISPLAY CO., LTD.

Inventor： MooKyoung HONG ,  SinKyun PARK

IPC: G09G3/20 ,  G09G3/3225

Abstract: A display device includes a sub-pixel comprising a light emitting device and a driving transistor DRT electrically connected to a first electrode of the light emitting device and configured to drive the light emitting device, and a reference voltage line electrically connected to the sub-pixel SP and applying an initialization voltage to the first electrode of the light emitting device, wherein a voltage level of the initialization voltage is changed according to a length of a blank period, thereby improving display quality of the image at a low refresh rate in a variable refresh rate mode.