公开(公告)号：US11817059B2

公开(公告)日：2023-11-14

申请号：US17954290

申请日：2022-09-27

Applicant: LG Display Co., Ltd.

Inventor： Kyung Hyun Lim ,  Myung Gi Lim ,  Sang Goo Jeong

IPC: G09G3/3291 ,  G09G3/3233

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0286 ,  G09G2310/0289 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2320/043 ,  G09G2330/021 ,  G09G2330/026 ,  G09G2330/027 ,  G09G2330/08 ,  G09G2360/10

Abstract: The present disclosure relates to an electroluminescent display device and a method for sensing electrical characteristics thereof, and the electroluminescent display device includes a display panel including a plurality of pixels including a sensing pixel and a non-sensing pixel connected to each data line, the plurality of pixels sharing one sensing line, a sensing circuit configured to sense an electrical characteristic value of the sensing pixel based on a sensing voltage applied to the shared sensing line, and a feedback unit configured to apply a feedback voltage according to the sensing voltage applied to the shared sensing line to the data line of the non-sensing pixel.

公开(公告)号：US12272311B2

公开(公告)日：2025-04-08

申请号：US18517244

申请日：2023-11-22

Applicant: LG Display Co., Ltd.

Inventor： Jin Woo Lee ,  Kyung Hyun Lim ,  Ji Su Choi

IPC: G09G3/3233

Abstract: The present disclosure provides a display device including a first subpixel configured to emit light and a second subpixel; a high-potential voltage line connected to the first subpixel and the second subpixel to deliver a high-potential voltage; a low-potential voltage line connected to the first subpixel and the second subpixel configured to deliver a low-potential voltage; and a circuit connected to the low-potential voltage line and configured to sense a value corresponding to the low-potential voltage line during operation of the second subpixel and compensate for a data signal to be supplied to the first subpixel based on the value.

公开(公告)号：US11568826B2

公开(公告)日：2023-01-31

申请号：US17825969

申请日：2022-05-26

Applicant: LG Display Co., Ltd.

Inventor： Ji Su Choi ,  Myung Gi Lim ,  Kyung Hyun Lim

IPC: G09G3/3291

Abstract: An electroluminescence display apparatus includes a pixel including a driving element generating a driving current, a data line connected to the pixel to transfer a data voltage needed for generating the driving current, a reference voltage line connected to the pixel to transfer a first reference voltage and/or a second reference voltage needed for generating the driving current, and a driving & sensing circuit configured to perform an integral on the driving current input through the reference voltage line, output an integral result to the data line, decrease a voltage of the data line from the data voltage to an off voltage for turning off the driving element, and detect an off voltage of the driving element from the data line.