US 12,169,618 B2
Stretchable array substrate having electrical wiring lines stacked on resin base member
Takumi Sano, Tokyo (JP)
Assigned to JAPAN DISPLAY INC., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Jul. 6, 2023, as Appl. No. 18/347,610.
Claims priority of application No. 2022-111861 (JP), filed on Jul. 12, 2022.
Prior Publication US 2024/0019970 A1, Jan. 18, 2024
Int. Cl. G06F 3/044 (2006.01)
CPC G06F 3/0446 (2019.05) [G06F 2203/04102 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A stretchable array substrate comprising:
a resin base member; and
an array layer stacked on the resin base member, wherein
the resin base member comprises:
a plurality of bodies disposed apart from each other; and
a plurality of hinges that couple the bodies,
the array layer comprises electrical wiring lines stacked on the hinges,
the hinges each comprise:
a linear portion having a linear shape when viewed in a stacking direction in which the resin base member and the array layer are stacked and having a first end coupled to a corresponding one of the bodies; and
a bend that meanders when viewed in the stacking direction and couples second ends of two of the linear portions,
the electrical wiring lines comprise:
a first electrical line stacked on the linear portion; and
a second electrical line stacked on the bend, and
the first electrical line is provided with:
a joint stacked on the first end of the linear portion; and
a thin wiring portion that is closer to the second end of the linear portion than the joint and that extends along the linear portion, the thin wiring portion having a length in a width direction intersecting a longitudinal direction of the first electrical line smaller than a length in the width direction of the joint when viewed in the stacking direction.