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：US20250022402A1

公开(公告)日：2025-01-16

申请号：US18614825

申请日：2024-03-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Il Ho LEE ,  Ye Rin OH ,  Seung Rok LEE ,  Wan Kee JUN ,  Hyeon Seo CHO

IPC: G09G3/20 ,  G06F3/041

Abstract: A driving circuit includes: a display driver configured to generate a vertical synchronization signal; and a sensor driver configured to determine a driving frequency by using the vertical synchronization signal, wherein a pulse polarity of the vertical synchronization signal is inverted when the driving frequency is changed.

公开(公告)号：US20220083192A1

公开(公告)日：2022-03-17

申请号：US17236046

申请日：2021-04-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Soo Won KIM ,  Ye Rin OH

IPC: G06F3/041 ,  G09G3/20 ,  G06F3/044 ,  G09G3/00

Abstract: A display device includes a display driving controller receiving input image data, a synchronization signal, and a voltage control signal, and generating image data based on the input image data and the synchronization signal, a display panel including pixels disposed on a display area and displaying an image on the display area based on the image data, and a touch sensor including sensing electrodes on a sensing area, and detecting a touch input generated in the sensing area by driving the sensing electrodes. The display driving controller generates a second level of the synchronization signal by changing a voltage level of the synchronization signal having a first level based on the voltage control signal, and provides the synchronization signal having the second level to the touch sensor. The touch sensor deactivates at least a partial area of the sensing area in response to the synchronization signal having the second level.

公开(公告)号：US20220083176A1

公开(公告)日：2022-03-17

申请号：US17444807

申请日：2021-08-10

Applicant: Samsung Display Co., Ltd.

Inventor： Su Hyun JEONG ,  Ja Seung KU ,  Soo Won KIM ,  Ye Rin OH

IPC: G06F3/044 ,  G06F3/041

Abstract: A display device and a method of driving a display device. The display device includes a housing, a display touch module including a non-exposed area covered by the housing, an exposed area located outside the housing, and an active area over the non-exposed area and the exposed area. The display touch module includes a display member configured to display an image and a touch member on the display member configured to sense a touch input. The display device also includes a boundary determining member configured to sense a capacitance of the touch member and calculate coordinates of an exposure boundary between the exposed area and non-exposed area of the display touch module. The display device is configured to adjust a display range of the active area according to the coordinates of the exposure boundary calculated by the boundary determining member.

公开(公告)号：US20210117047A1

公开(公告)日：2021-04-22

申请号：US16931387

申请日：2020-07-16

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Wook CHO ,  Ye Rin OH ,  Min Hong KIM ,  Tae Joon KIM ,  Hyun Jae LEE

IPC: G06F3/044

Abstract: A touch sensor for a display device includes: a base layer including first and second sensing regions adjacent to each other in a first direction and a non-sensing region surrounding at least one side of each of the first and second sensing regions; first sensors disposed in each of the first and second sensing regions, the first sensors being arranged along a second direction intersecting the first direction, the first sensors being electrically connected to each other along the second direction; second sensors disposed in each of the first and second sensing regions, the second sensors being arranged along the first direction, the second sensors being electrically connected to each other along the first direction; and at least one third sensor located in the first sensing region and the second sensing region, wherein the at least one third sensor includes first and second sub-sensors electrically separated at a boundary between the first sensing region and the second sensing region, and the first and second sub-sensors have substantially the same size.