公开(公告)号：US20240194103A1

公开(公告)日：2024-06-13

申请号：US18462105

申请日：2023-09-06

Applicant: Samsung Display Co., LTD.

Inventor： Won Mi HWANG ,  Ji Su NA ,  Su Mi JANG

IPC: G09G3/00 ,  G09G3/32

CPC classification number: G09G3/006 ,  G09G3/32 ,  G09G2310/0275 ,  G09G2310/0297 ,  G09G2330/12

Abstract: A display device includes a substrate, a circuit layer, a light emitting element layer, and a display driving circuit. The circuit layer comprises demux circuit units side by side in a demux area of a non-display area of the substrate and electrically connected between data lines and the display driving circuit, test signal supply lines in the non-display area and transmitting test signals for testing the lighting state of light emitting elements of the light emitting element layer, and test pad connection lines respectively electrically connected to test signal pads in the sub-area and extending to the non-display area. The test signal supply lines are electrically connected to the test pad connection lines through test line connection contact holes, respectively. The test line connection contact holes are in a test connection area which is a part of the demux area adjacent to the sub-area.

公开(公告)号：US20240404439A1

公开(公告)日：2024-12-05

申请号：US18801709

申请日：2024-08-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Won Mi HWANG ,  Ji Su NA ,  Su Mi JANG

IPC: G09G3/00 ,  G09G3/32

Abstract: A display device includes a substrate, a circuit layer, a light emitting element layer, and a display driving circuit. The circuit layer comprises demux circuit units side by side in a demux area of a non-display area of the substrate and electrically connected between data lines and the display driving circuit, test signal supply lines in the non-display area and transmitting test signals for testing the lighting state of light emitting elements of the light emitting element layer, and test pad connection lines respectively electrically connected to test signal pads in the sub-area and extending to the non-display area. The test signal supply lines are electrically connected to the test pad connection lines through test line connection contact holes, respectively. The test line connection contact holes are in a test connection area which is a part of the demux area adjacent to the sub-area.

公开(公告)号：US20240122003A1

公开(公告)日：2024-04-11

申请号：US18215090

申请日：2023-06-27

Applicant: Samsung Display Co., LTD.

Inventor： Ji Su NA ,  Su Mi JANG ,  Won Mi HWANG

IPC: H10K59/131 ,  H10K59/88

CPC classification number: H10K59/131 ,  H10K59/88

Abstract: A display device includes: a circuit layer including: demux circuits in a demux area of a non-display area and electrically connected between data lines and a display driving circuit; a first higher-priority output connection line electrically connected to a higher-priority output terminal of a first demux circuit from among the demux circuits, and extending to the display area; a first lower-priority output connection line electrically connected to a lower-priority output terminal of the first demux circuit, and extending to the display area; and a first input connection line electrically connected to an input terminal of the first demux circuit. One of the first higher-priority output connection line, the first lower-priority output connection line, or the first input connection line is included in the same conductive layer as that of the data lines, and the others are included in a conductive layer different from that of the data lines.

公开(公告)号：US20220157245A1

公开(公告)日：2022-05-19

申请号：US17524019

申请日：2021-11-11

Applicant: Samsung Display Co., Ltd.

Inventor： Seung Han JO ,  Min Chae KWAK ,  Kyeong Hwa KIM ,  Mi Hae KIM ,  Kyong Hwan OH ,  Su Mi JANG ,  Jae-Ho CHOI

IPC: G09G3/3258

Abstract: Provided is a display device, which includes: a reference voltage line formed along a circular outer line and configured to provide a reference voltage; a first reference voltage auxiliary line electrically connected to the reference voltage line and formed to be parallel with a predetermined interval; and a conductive line forming a contact with the reference voltage line and the first reference voltage auxiliary line and configured to provide the reference voltage to a cathode.