公开(公告)号：US12165566B2

公开(公告)日：2024-12-10

申请号：US18511490

申请日：2023-11-16

Applicant: LG Display Co., Ltd.

Inventor： SunYoon Kim ,  Jin-Hyun Jung ,  Byungjae Lee ,  Changwoo Lee

IPC: G09G5/00 ,  G09G3/20 ,  G09G3/32

Abstract: Discussed are a display panel and a display device having the same. The display panel includes a plurality of subpixels. A gate line, a data line, and a reference voltage line are further disposed on the display panel. A gate driving circuit supplies a scan signal to the gate line. A data driving circuit converts image data into a data voltage and supplies the data voltages to the data line. A timing controller controls the gate driving circuit and the data driving circuit and generates compensation data for the image data using a sensing voltage detected through the reference voltage line. The display panel includes a plurality of sensing transistors disposed around a corresponding subpixel among the plurality of subpixels to connect the data line and the reference voltage line.

公开(公告)号：US20240210758A1

公开(公告)日：2024-06-27

申请号：US18520302

申请日：2023-11-27

Applicant: LG Display Co., Ltd.

Inventor： Changwoo Lee ,  SunYoon Kim ,  Min Kim ,  Sanggoo Jeong ,  Juyoung Noh

IPC: G02F1/1335 ,  G02F1/13357 ,  G09G3/32

CPC classification number: G02F1/133612 ,  G02F1/133603 ,  G09G3/32 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2310/0297

Abstract: The present disclosure relates to a backlight unit, a display device, and a driving method. A sensing MUX circuit senses a voltage of a first light emitting node and a voltage of a second light emitting node, and then, detects whether a first light source connected between the first light emitting node and the second light emitting node is defective, whereby it is possible to specify and detect a defective light source.

公开(公告)号：US11100871B2

公开(公告)日：2021-08-24

申请号：US17115630

申请日：2020-12-08

Applicant: LG Display Co., Ltd.

Inventor： Inchul Woo ,  SunYoon Kim

IPC: G09G5/02 ,  G09G3/32 ,  G09G3/3291 ,  H01L27/32

Abstract: The display device also includes a threshold voltage sensor configured to sense a threshold voltage of a white light emitting element included in the white sub-pixel, a data compensation unit configured to correct data signal depending on a variation in the threshold voltage and generate compensated data signal and a data driver configured to generate a data voltage according to the compensated data signal and output the data voltage to the display panel. The data compensation unit calculates an initial white gain depending on the variation in the threshold voltage. Therefore, the lifetime of the display device can be improved.