Patent ID: 11968775
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A display device comprising:
a display panel including pixels;
a plurality of source drivers connected to the display panel;
a printed circuit board connected to the plurality of source drivers and mounted with a timing controller for providing control signals and image data to the plurality of source drivers through signal lines; and
a connection part connected to the printed circuit board,
wherein each of the printed circuit board and the connection part includes:
a first insulating layer;
a first metal layer disposed above the first insulating layer;
a second insulating layer disposed above the first metal layer;
the signal lines disposed above the second insulating layer, the signal lines extending in a first direction and having line widths in a second direction perpendicular to the first direction;
a second metal layer disposed below the first insulating layer;
a third insulating layer disposed below the second metal layer;
a third metal layer disposed below the third insulating layer; and
a fourth insulating layer disposed below the third metal layer,
wherein the first metal layer has open areas overlapping entire widths of the signal lines and areas between the signal lines in a third direction perpendicular to the first and second directions,
wherein the second insulating layer electrically isolates the first metal layer from the signal lines,
wherein the first insulating layer electrically isolates the first metal layer from the second metal layer,
wherein the third insulating layer electrically isolates the second metal layer from the third metal layer, and
wherein the open areas extend along entire lengths of the signal lines in the first direction, and
wherein the signal lines of the printed circuit board directly connect to the signal lines of the connection part.