公开(公告)号：US11699398B2

公开(公告)日：2023-07-11

申请号：US17505523

申请日：2021-10-19

Applicant: LG Display Co., Ltd.

Inventor： Seok Hyun Hong ,  Seong En Lee ,  Jung Hyeon Kim

IPC: G09G3/3266 ,  H10K50/11 ,  H10K59/12

CPC classification number: G09G3/3266 ,  H10K50/11 ,  H10K59/12 ,  G09G2320/0233

Abstract: An electroluminescent display device includes a pixel configured to display an image based on a difference between a display data voltage and a first reference voltage, a driving voltage generation circuit configured to supply the display data voltage to the pixel through a data line, and a sensing circuit configured to supply the first reference voltage to the pixel through a sensing line. The sensing circuit includes a sensing channel terminal coupled to the sensing line, a switch coupled between the sensing channel terminal and an input terminal for the first reference voltage, and a sampling circuit configured to sense a voltage of the sensing line which has changed from the first reference voltage independent of driving characteristics of the pixel in a vertical blank period in which the switch is turned off.

公开(公告)号：US10013935B2

公开(公告)日：2018-07-03

申请号：US14971387

申请日：2015-12-16

Applicant: LG DISPLAY CO., LTD.

Inventor： Seok Hyun Hong ,  Myung Gi Lim ,  O Sung Do

IPC: G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3611 ,  G09G3/20 ,  G09G2300/0426 ,  G09G2310/0224 ,  G09G2310/0286 ,  G09G2310/08

Abstract: A display device according to an embodiment includes a display panel in which a plurality of gate and date lines are formed, and a gate driver configured to include first and second shift registers and a control portion. The first shift register is disposed opposite to odd-numbered gate lines of the display panel. The second shift register is disposed opposite to even-numbered gate lines of the display panel. The control portion transfers a first control signal to the first shift register, derives a second control signal from the first control signal, and applies the second control signal to the second shift register.

公开(公告)号：US11869447B2

公开(公告)日：2024-01-09

申请号：US17562414

申请日：2021-12-27

Applicant: LG Display Co., Ltd.

Inventor： Jae Ik Yoo ,  Jae Yoon Bae ,  Seok Hyun Hong

IPC: G09G3/3291 ,  G09G3/00 ,  G09G3/3258

CPC classification number: G09G3/3291 ,  G09G3/006 ,  G09G3/3258 ,  G09G2330/12

Abstract: A light emitting display device includes a display panel configured to display an image, and a data driver including a panel driving circuit and a panel sensing circuit, the panel driving circuit configured to drive the display panel, and the panel sensing circuit configured to sense the display panel. The data driver pre-charges a reference line of the display panel based on a voltage output from at least one of data voltage output circuits included in the panel driving circuit.

公开(公告)号：US12087211B2

公开(公告)日：2024-09-10

申请号：US17966135

申请日：2022-10-14

Applicant: LG Display Co., Ltd.

Inventor： Seok Hyun Hong ,  Sang Yun Kim ,  Jae Yoon Bae

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0828 ,  G09G2300/0852 ,  G09G2310/0272 ,  G09G2310/0294 ,  G09G2310/061 ,  G09G2310/08

Abstract: An electroluminescent display apparatus may include a pixel including a driving element having a gate electrode connected to a data line and a source electrode connected to a reference voltage line and a pixel driving circuit applying a sensing data voltage to the gate electrode of the driving element through the data line, detecting a source electrode voltage of the driving element, shifted from a sensing reference voltage based on the sensing data voltage, through the reference voltage line to obtain a detection voltage, calculating an offset voltage based on the detection voltage, and lowering a level of the sensing data voltage based on the offset voltage, in a plurality of vertical blank periods.

公开(公告)号：US11562671B2

公开(公告)日：2023-01-24

申请号：US17538139

申请日：2021-11-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Jung Hyeon Kim ,  Tae Wook Kim ,  Seok Hyun Hong

IPC: G09G3/20 ,  G09G3/00

Abstract: An electroluminescent display device includes a display panel including a plurality of pixels, a first compensation value calculator for calculating a first compensation value based on prediction according to an accumulation result of video data to be written in the pixels, a second compensation value calculator for calculating a second compensation value based on sensing according to an electrical sensing value with respect to driving characteristics of the pixels, and a data corrector for correcting the video data based on the first compensation value and the second compensation value.

公开(公告)号：US20220208129A1

公开(公告)日：2022-06-30

申请号：US17562414

申请日：2021-12-27

Applicant: LG Display Co., Ltd.

Inventor： Jae Ik Yoo ,  Jae Yoon Bae ,  Seok Hyun Hong

IPC: G09G3/3291 ,  G09G3/3258 ,  G09G3/00

Abstract: Light emitting display device and driving method thereof. A light emitting display device includes a display panel configured to display an image, and a data driver including a panel driving circuit and a panel sensing circuit, the panel driving circuit configured to drive the display panel, and the panel sensing circuit configured to sense the display panel. The data driver pre-charges a reference line of the display panel based on a voltage output from at least one of data voltage output circuits included in the panel driving circuit.