公开(公告)号：US12100338B2

公开(公告)日：2024-09-24

申请号：US17954264

申请日：2022-09-27

Applicant: LG Display Co., Ltd.

Inventor： Jin Hyun Jung ,  Sun Yoon Kim ,  Chang Woo Lee ,  Hyun Wook Kim

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0278 ,  G09G2310/08

Abstract: Provided is a display device including a display panel configured to display an image, a gate driving circuit connected to the display panel, a data driving circuit connected to the display panel, and a timing controller configured to control the gate driving circuit and the data driving circuit, in which the data driving circuit senses a gate signal output from the gate driving circuit, and a data output timing is controlled based on an operation of another device or a signal generated therefrom together with the sensed gate signal.

公开(公告)号：US11810502B2

公开(公告)日：2023-11-07

申请号：US17953732

申请日：2022-09-27

Applicant: LG Display Co., Ltd.

Inventor： Chang Woo Lee ,  Jin Hyun Jung ,  Sun Yoon Kim ,  Hyun Wook Kim

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/08 ,  G09G2330/10

Abstract: An electroluminescent display apparatus including a pixel connected to a detection line; a panel driving circuit configured to off-drive a driving element included in the pixel in a detection interval; a reference voltage generating circuit configured to supply a detection reference voltage to the detection line prior to the detection interval, generate a first comparator reference voltage which is higher than the detection reference voltage in the detection interval, and generate a second comparator reference voltage which is lower than the detection reference voltage in the detection interval; a comparator configured to compare the first comparator reference voltage with a voltage of the detection line to generate a first comparison output at a first timing of the detection interval and comparing the second comparator reference voltage with the voltage of the detection line to generate a second comparison output at a second timing of the detection interval; and a logic circuit configured to determine an occurrence of a defect of the pixel based on the first comparison output and the second comparison output and to perform dark spot processing of the defective pixel.

公开(公告)号：US11804157B2

公开(公告)日：2023-10-31

申请号：US17980420

申请日：2022-11-03

Applicant: LG Display Co., Ltd.

Inventor： Sun Yoon Kim ,  Jin Hyun Jung ,  Chang Woo Lee ,  Hyun Wook Kim

IPC: G09G3/30 ,  G09G3/00 ,  G09G3/3233 ,  G09G3/3291 ,  G01R19/10

CPC classification number: G09G3/006 ,  G01R19/10 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2360/10

Abstract: An electroluminescent display apparatus can include a display panel including the one or more subpixels connected to a data line, a gate line, and a low-level power line. The display apparatus can further include a comparator connected to the one or more subpixels through the data line and the low-level power line to compare a first input voltage from the data line with a second input voltage from the low-level power line to generate a comparison output. The first input voltage is a reference voltage, and the second input voltage is a voltage of a specific node of the one or more subpixels capable of being shifted from an initialization voltage.

公开(公告)号：US20230101025A1

公开(公告)日：2023-03-30

申请号：US17954264

申请日：2022-09-27

Applicant: LG Display Co., Ltd.

Inventor： Jin Hyun Jung ,  Sun Yoon Kim ,  Chang Woo Lee ,  Hyun Wook Kim

IPC: G09G3/32

Abstract: Provided is a display device including a display panel configured to display an image, a gate driving circuit connected to the display panel, a data driving circuit connected to the display panel, and a timing controller configured to control the gate driving circuit and the data driving circuit, in which the data driving circuit senses a gate signal output from the gate driving circuit, and a data output timing is controlled based on an operation of another device or a signal generated therefrom together with the sensed gate signal.