公开(公告)号：US20240221633A1

公开(公告)日：2024-07-04

申请号：US18520044

申请日：2023-11-27

Applicant: LG Display Co., Ltd.

Inventor： Jaeyoon Bae ,  SangHo Yu ,  Jaeik Yoo

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2300/0852 ,  G09G2310/0213 ,  G09G2310/0251 ,  G09G2310/08 ,  G09G2330/10

Abstract: A display device and a driving method thereof are disclosed. In a defective subpixel detection time for detecting a defective subpixel, a gate driving circuit may supply turn-on signals to a first-first gate line group included in a plurality of gate lines and supply turn-off signals to a first-second gate line group other than the first-first gate line group among the plurality of gate lines, thereby quickly detecting a defective subpixel.

公开(公告)号：US11030951B2

公开(公告)日：2021-06-08

申请号：US16707990

申请日：2019-12-09

Applicant: LG Display Co., Ltd.

Inventor： Changwoo Lee ,  Jaeik Yoo ,  Osung Do

IPC: G09G3/3275 ,  G09G3/3233 ,  G09G3/3266

Abstract: A light-emitting display includes a display panel, a first circuit, and a second circuit. The display panel comprises a pixel. The first circuit supplies a data voltage to a data line for the pixel. The second circuit performs a sensing operation for sensing a sensing line for the pixel and outputs a voltage required for the sensing operation, and outputs a noise removing voltage for cancelling out noise formed on the sensing line during the sensing operation.

公开(公告)号：US10089928B2

公开(公告)日：2018-10-02

申请号：US15655581

申请日：2017-07-20

Applicant: LG Display Co., Ltd.

Inventor： Jaeik Yoo ,  Myunggi Lim ,  Osung Do

IPC: G09G3/30 ,  G09G3/3233 ,  G09G3/20 ,  G09G3/3275

Abstract: The sensing method for an organic light-emitting display comprises: defining a pixel group comprising a reference pixel and two or more valid pixels, among a plurality of pixels arranged on a horizontal line; obtaining a black level current sensing value by applying a black level data voltage to the reference pixel; obtaining a current sensing value for a given gray level by applying a data voltage for the given gray level higher than the black level to each of the valid pixels; and obtaining a pixel current sensing value by subtracting the black level current sensing value from the current sensing value for the given gray level to eliminate common noise.