Printed circuit board and display device including the same

A printed circuit board comprising:

• a first sub-printed circuit board;
• a second sub-printed circuit board;
• and a connection part,
• wherein each of the first and second sub-printed circuit boards comprises:
• a flexible base member;
• a metal line disposed on the flexible base member;
• a plating line disposed on the metal line, wherein the plating line comprises a connecting portion, an interconnection portion extending from the connecting portion, and a bending portion extending from the interconnection portion, and
• a protective layer covering the interconnection portion and exposing the connecting portion and the bending portion,
• wherein the bending portion of the first sub-printed circuit board, the bending portion of the second sub-printed circuit board, and the connection part overlap with one another when viewed in a plan view, and
• wherein the connection part electrically connects the bending portion of the first sub-printed circuit board to the bending portion of the second sub-printed circuit board.

A display device comprising:

• a display panel;
• a backlight unit configured to provide light to the display panel;
• and
• a printed circuit board,
• wherein the display panel comprises:
• a first substrate having a surface on which a plurality of color filters is disposed;
• and
• a second substrate having a surface on which a plurality of transistors is disposed, wherein the second substrate includes a pad part that is electrically connected to the printed circuit board to receive electrical signals provided from an outside to the plurality of transistors,
• wherein the printed circuit board comprises:
• a first flexible base member;
• a first metal line disposed on a surface of the first flexible base member;
• a first plating line plated on the first metal line, wherein the first plating line comprises a first connecting portion connected to the pad part, a first interconnection portion extending from the first connecting portion, and a first bending portion extending from the first interconnection portion;
• a first protective layer covering the first interconnection portion;
• a connection part covering the first bending portion;
• a second flexible base member;
• a second metal line disposed on a surface of the second flexible base member;
• a second plating line plated on the second metal line, wherein the second plating line comprises a second bending portion connected to the connection part, a second interconnection portion extending from the second bending portion, and a second connecting portion extending from the second interconnection portion;
• and
• a second protective layer covering the second interconnection portion.