公开(公告)号：US20250117100A1

公开(公告)日：2025-04-10

申请号：US18765098

申请日：2024-07-05

Applicant: Samsung Display Co., LTD.

Inventor： Bong Il KANG ,  Min Hong KIM ,  Jung Mok PARK ,  Ye Rin OH

IPC: G06F3/044

Abstract: In an inspecting method of a display device, the method includes: receiving an analog voltage from an external device; generating a first touch driving signal having a first potential based on the analog voltage; acquiring first raw data for each channel of touch electrodes by supplying the first touch driving signal to the touch electrodes; generating a second touch driving signal having a second potential higher than the first potential by using a charge pump; acquiring second raw data for each channel of the touch electrodes by supplying the second touch driving signal to the touch electrodes; calculating a ratio between the first raw data and the second raw data; and determining the charge pump is normal, based on the calculated ratio being within a designated range.

公开(公告)号：US20220391041A1

公开(公告)日：2022-12-08

申请号：US17688927

申请日：2022-03-08

Applicant: Samsung Display Co., LTD.

Inventor： Bong Il KANG ,  Ga Yeon YUN

IPC: G06F3/044 ,  G06F3/041 ,  H05K1/18 ,  H05K1/02

Abstract: A display device includes: a display panel including a display area in which pixels are provided, and a non-display area formed to enclose at least one side of the display area; a touch sensing layer disposed on the display panel, and including at least one first touch electrode and at least one second touch electrode; a printed circuit substrate connected to one side of the non-display area and electrically connected with the pixels; and conductive tape attached to one surface of the printed circuit substrate. The conductive tape may include first conductive tape and second conductive tape spaced apart from each other.

公开(公告)号：US20250147620A1

公开(公告)日：2025-05-08

申请号：US18813232

申请日：2024-08-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ye Rin OH ,  Bong Il KANG ,  Min Hong KIM ,  Jung Mok PARK

IPC: G06F3/041 ,  G06F3/044

Abstract: A display device includes a display panel including touch electrodes, and a touch driving circuit including a driving signal output unit that outputs a touch driving signal supplied to the touch electrodes and a touch control unit that controls the driving signal output unit. The touch control unit sets the touch driving signal to swing between a first voltage and a second voltage higher than the first voltage, set the touch driving signal to rise to a third voltage higher than the second voltage and then lower from the third voltage to the second voltage, during a rising edge period, and set the touch driving signal to fall to a fourth voltage lower than the first voltage and then rise from the fourth voltage to the first voltage, during a falling edge period.

公开(公告)号：US20250077017A1

公开(公告)日：2025-03-06

申请号：US18627716

申请日：2024-04-05

Applicant: Samsung Display Co., Ltd.

Inventor： Bong Il KANG

IPC: G06F3/041 ,  G06F3/044

Abstract: A display device may include a display panel, a sensor array including first and second sensor electrode groups, first and second signal lines respectively connected to the sensor electrodes of the first and second sensor electrode groups, and a sensor driver connected to the sensor array through the first and second signal lines. The sensor electrodes of the first sensor electrode group may include a first sensor electrode adjacent to an edge of the sensor array, and a second sensor electrode spaced apart from the edge. A signal line connected to the first sensor electrode among the first signal lines may include first and second routing lines connected to first and second ends of the first sensor electrode. A signal line connected to the second sensor electrode among the first signal lines may include a third routing line connected to a first end of the second sensor electrode.