US 9,848,502 B1Granted

Hinge assembly and foldable display device using the same

AssigneeShin Zu Shing Co., Ltd.

InventorsJui-Lin Chu, Kuo-Jung Hsu

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Abstract

A foldable display device includes a first plate member, a second plate member, a hinge assembly, and a flexible display member. The first plate member includes a first display surface and a first side. The second plate member includes a second display surface and a second side. The first side and the second side are close to each other. A first hinge member and a second hinge member of the hinge assembly are respectively connected to the first plate member and the second plate member. The flexible display member includes a first portion, a second portion, and a middle portion. The first portion contacts the first display surface. The second portion contacts the second display surface. The middle portion is between the first side and the second side. The first and second hinge members rotate relatively to have the flexible display member spread to be flat.

Claims15

Dependent claims

A hinge assembly, comprising:

a bracket plate;
a first hinge member disposed on the bracket plate, comprising:
a first main axle being pivotally connected to the bracket plate, comprising a first main gear, the first main gear being around and fixed to the first main axle;
a first subordinate axle being pivotally connected to the bracket plate, comprising a first subordinate gear, the first subordinate gear being around and fixed to the first subordinate axle, the first subordinate gear being engaged with the first main gear;
a first main arm with an end connected to the first main axle and an another end provided with a first main sliding unit;
and
a first subordinate arm with an end pivotally connected to the first subordinate axle and an another end provided with a first subordinate sliding unit, the first subordinate sliding unit and the first main sliding unit being slidably connected to each other;
and
a second hinge member disposed on the bracket plate, symmetrical to the first hinge member, the second hinge member comprising:
a second main axle being pivotally connected to the bracket plate, comprising a second main gear, the second main gear being around and fixed to the second main axle;
a second subordinate axle being pivotally connected to the bracket plate, comprising a second subordinate gear, the second subordinate gear being around and fixed to the second subordinate axle, the second subordinate gear being engaged with the second main gear and the first subordinate gear;
a second main arm with an end connected to the second main axle and an another end provided with a second main sliding unit;
and
a second subordinate arm with an end pivotally connected to the second subordinate axle and an another end provided with a second subordinate sliding unit, the second subordinate sliding unit and the second main sliding unit being slidably connected to each other.

11 more elements

A hinge assembly, comprising:

a bracket plate provided with a first hinge member and a second hinge member;
wherein the first hinge member comprises:
a first main axle pivotally disposed on the bracket plate, the first main axle comprising a first main arm with an end connected to the first main axle and an another end provided with a first main sliding unit;
and
a first subordinate arm with an end pivotally connected to the bracket plate and an another end provided with a first subordinate sliding unit, the first subordinate sliding unit and the first main sliding unit being slidably connected to each other;
and
wherein the second hinge member comprises:
a second main axle pivotally disposed on the bracket plate, the second main axle comprising a second main arm with an end connected to the second main axle and an another end provided with a second main sliding unit;
and
a second subordinate arm with an end pivotally connected to the bracket plate and an another end provided with a second subordinate sliding unit, the second subordinate sliding unit and the second main sliding unit being slidably connected to each other.

7 more elements

Dependencies are inferred from the claim text.