公开(公告)号：US20230306883A1

公开(公告)日：2023-09-28

申请号：US17889250

申请日：2022-08-16

Applicant: Samsung Display Co., Ltd.

Inventor： CHOONGHEE OH ,  TAEHOON KWON ,  SUKYOUNG KIM ,  AHYOUNG KIM ,  HWAYOUNG SONG

IPC: G09G3/00 ,  H01L27/12

CPC classification number: G09G3/006 ,  H01L27/124 ,  G09G2300/0443 ,  G09G2300/0452 ,  G09G2330/12

Abstract: A display device includes a first pixel row, a first first-structure transmission line, a first second-structure transmission line, a first transistor, and a second transistor. The first pixel row includes a first first-color sub-pixel and a second first-color sub-pixel both for displaying a first color. The first second-structure transmission line neighbors the first first-structure transmission line with no intervening transmission line analogous to the first first-structure transmission line or the first second-structure transmission line being disposed between the first first-structure transmission line and the first second-structure transmission line. The first transistor is electrically connected through the first first-structure transmission line to the first first-color sub-pixel and receives a first test voltage. The second transistor is electrically connected through the first second-structure transmission line to the second first-color sub-pixel and receives a second test voltage different from the first test voltage.

公开(公告)号：US20240185750A1

公开(公告)日：2024-06-06

申请号：US18228244

申请日：2023-07-31

Applicant: Samsung Display Co., LTD.

Inventor： HAE-YEON LEE ,  SUKYOUNG KIM ,  HWAYOUNG SONG ,  KWANGSAE LEE ,  IL-JOO KIM

IPC: G09G3/00 ,  G06F3/041 ,  G06F3/044 ,  H10K59/131 ,  H10K59/40

CPC classification number: G09G3/006 ,  G06F3/0412 ,  G06F3/0443 ,  G09G3/035 ,  H10K59/131 ,  H10K59/40 ,  H10K2102/311

Abstract: A display device includes: a substrate including a display area, a peripheral area surrounding the display area, a hole area positioned inside the display area, and a pad area; a crack detection line including a first part in the pad area and extending to the peripheral area and a second part connected to the first part, disposed to surround the hole area, and extending to the pad area; a printed circuit board in the pad area; first transistors in the pad area and connected in series between the printed circuit board and the first part, where each of gate electrodes of the first transistors is connected to a first signal line; and second transistors in the pad area and connected in series between a constant voltage line and the first part, where each of gate electrodes of the second transistors is connected to a second signal line.

公开(公告)号：US20210286002A1

公开(公告)日：2021-09-16

申请号：US17191581

申请日：2021-03-03

Applicant: Samsung Display Co., Ltd.

Inventor： HWAYOUNG SONG ,  SEUNGWOO SUNG ,  DONG EUP LEE ,  SEUNGJI CHA ,  KIMYEONG EOM ,  KWANGSAE LEE

IPC: G01R31/317 ,  G09G3/20

Abstract: A display panel test circuit includes a first transistor connected to a first data line and receiving a red lighting test signal, a second transistor connected to the first data line and receiving a blue lighting test signal, a third transistor connected to a second data line and receiving a first green lighting test signal, a fourth transistor connected to a third data line and receiving the red lighting test signal, a fifth transistor connected to the third data line and receiving the blue lighting test signal, a sixth transistor connected to a fourth data line and receiving a second green lighting test signal, a seventh transistor connected to the second data line and receiving a crack test signal, and an eighth transistor connected to the fourth data line and receiving the crack test signal. The display panel test circuit performs one or more tests on a display panel.