Patent ID: 11948396
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 3:
4. The display assembly according to claim 1, wherein the second flexible printed circuit comprises:
a first protection layer;
a first conductor layer comprising a conductor part and at least two connection parts, wherein the conductor part and the at least two connection parts are arranged on one side of the first protection layer; the at least two connection parts are arranged on two opposite sides of the conductor part; a gap is provided between the connection parts and the conductor part; orthographic projections of the connection parts on the first flexible printed circuit and an orthographic projection of the first protection layer on the first flexible printed circuit do not overlap with each other; a gap is provided between the connection parts; and first through holes are provided on the connection parts;
an insulation layer arranged on a side of the first conductor layer away from the first protection layer, wherein at least two second through holes are respectively provided at two opposite ends of the insulation layer; a metal layer is formed on walls of the second through holes; and the second through holes communicate with the first through holes;
a second conductor layer arranged on a side of the insulation layer away from the first protection layer, wherein the second conductor layer comprises the connecting line part; at least two third through holes are respectively provided at both ends of the second conductor layer; the connecting line part comprises a plurality of connecting lines, both ends of each of the connecting lines being respectively coupled to the third through holes; and the third through holes communicate with the first through holes; and
a second protection layer arranged on a side of the second conductor layer away from the first protection laver, wherein two opposite ends of the second conductor layer protrude from the second protection layer to expose the third through holes;
wherein the metal layer in the second through holes couples the connection parts of the first conductor layer and the connecting line part of the second conductor layer to form the third connection part and the fourth connection part.