公开(公告)号：US20230092537A1

公开(公告)日：2023-03-23

申请号：US17831330

申请日：2022-06-02

Applicant: Samsung Display Co., Ltd.

Inventor： Jun Young KO ,  Tae Joon KIM ,  Eun Sol SEO ,  Yu Jin SIN ,  Jun Seong LEE ,  Jae Woo CHOI

IPC: G09G3/00 ,  G06F3/041 ,  G09G3/3233

Abstract: A method for inspecting a display device (which includes a pixel electrode and a touch sensor overlapping the pixel electrode) includes: adjusting an impedance value of a variable impedance circuit of an inspection apparatus according to a model of the display device; driving a power source generator of the inspection apparatus; supplying a pixel voltage to the pixel electrode through an output terminal connected to the variable impedance circuit; driving the touch sensor; and detecting a defect related to the pixel electrode based on sensing signals output from the touch sensor.

公开(公告)号：US20250156013A1

公开(公告)日：2025-05-15

申请号：US18736245

申请日：2024-06-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yu Jin SIN ,  Hyun Wook CHO ,  Jae Woo CHOI

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/14

Abstract: The display device includes a first display panel, a second display panel disposed adjacent to the first display panel, a first touch array disposed on the first display panel, a second touch array disposed on the second display panel, a first touch driver that applies a first touch driving signal to the first touch array in response to a frame synchronization signal, a second touch driver that applies a second touch driving signal to the second touch array in response to the frame synchronization signal, and a common line commonly connected to the first and second touch drivers to transmit the frame synchronization signal, wherein a frequency of pulses included in the first touch driving signal is different from a frequency of pulses included in the second touch driving signal.

公开(公告)号：US20250156012A1

公开(公告)日：2025-05-15

申请号：US18678005

申请日：2024-05-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yu Jin SIN ,  Jae Hyun PARK ,  IL Ho LEE ,  Hyun Wook CHO

IPC: G06F3/041 ,  G06F3/14

Abstract: A display device includes a first display panel, a second display panel disposed adjacent to the first display panel, a first touch array disposed on the first display panel, a second touch array disposed on the second display panel, a first touch driver that applies a first touch driving signal to the first touch array in response to a frame synchronization signal, a second touch driver that applies a second touch driving signal to the second touch array in response to the frame synchronization signal, and a common line commonly connected to the first and second touch drivers to transmit the frame synchronization signal, and pulses included in the first touch driving signal and pulses included in the second touch driving signal have phases opposite to each other.