# US 12,181,935 B2 · Water drop-type hinge in a computing device having a flexible display

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,181,935 B2
- Document ID: US12181935B2
- Status: Granted
- Kind: B2
- Application number: 18/002,145
- Filed: 2020-10-29
- Published: 2023-07-20
- Granted: 2024-12-31
- Earliest claimed: 2020-10-29
- Assignees: Google Inc.
- Applicants: Google LLC
- Inventors: Shih Wei Hsiang; Po-Kai Lai; Jengn Wen Lin; Hung-Wei Wang
- Web page: https://patentgrep.com/patent/US12181935B2

## CPC

- G06F 1/1681: {Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683)}
- H04M 1/022: {The hinge comprising two parallel pivoting axes}
- G06F 1/1616: {with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position}
- G06F 1/1624: {with sliding enclosures, e.g. sliding keyboard or display}
- G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable}
- H04M 1/0268: {including a flexible display panel}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)

## Abstract

An example computing device includes a flexible display coupled to a housing that includes a support plate having a first joint coupled to a first end of the support plate and a second joint coupled to a second end of the support plate. A slide module has a slot that guides a linear slide movement of the second joint along a linear path of movement within the slot as the support plate pivots about the first joint, where the support plate moves according to the first joint and the second joint to support at least the portion of the flexible display when the flexible display is unfolded and moves according to the first joint and the second joint to create a gap between at least a portion of the support plate and at least the portion of the flexible display when the flexible display is folded.

## Claims

### Claim 1

A computing device comprising:
a housing;
a flexible display operable to be folded to a first position and unfolded to a second position, wherein the flexible display is coupled to the housing;
a support plate for supporting at least a portion of the flexible display when the flexible display is unfolded to at least the second position, the support plate being disposed within the housing between at least a portion of the flexible display and a portion of the housing, the support plate having a first joint coupled to a first end of the support plate and a second joint coupled to a second end of the support plate distal from the first end of the support plate, and the support plate being pivotable about the first joint as the flexible display is folded and unfolded between the first position and the second position; and
a slide module in the housing having a fixed position in relation to the housing, the slide module having a slot that accepts the second joint and guides a linear slide movement of the second joint along a linear path of movement within the slot as the support plate pivots about the first joint;
wherein the support plate moves according to the first joint and the second joint to support at least the portion of the flexible display when the flexible display is unfolded to the second position and moves according to the first joint and the second joint to create a gap between at least a portion of the support plate and at least the portion of the flexible display when the flexible display is folded to the first position.

### Claim 2 (depends on 1)

The computing device of claim 1, further comprising:
a cam at the first joint of the support plate that rotates in correspondence with pivot movement of the support plate about the first joint, the cam having a first concave portion on an exterior surface of the cam for accepting a spring-loaded pin when the flexible display is folded to the first position and a second concave portion on the exterior surface of the cam for accepting the spring-loaded pin when the flexible display is unfolded to the second position.

### Claim 3 (depends on 2)

The computing device of claim 2, wherein the first joint comprises a first pin operably coupled to the cam, wherein the cam rotates about a longitudinal axis of the first pin.

### Claim 4 (depends on 1)

The computing device of claim 1, wherein the second joint of the support plate comprises:
a second pin operably coupled to the support plate, wherein a portion of the second pin is disposed within the slot of the slide module, and wherein the portion of the second pin disposed within the slot of the slide module moves along a linear path within the slot as the support plate pivots about the first joint.

### Claim 5 (depends on 1)

The computing device of claim 1, wherein the housing is a first housing, wherein the support plate is a first support plate, and wherein the slide module is a first slide module, further comprising:
a second housing, wherein the flexible display is coupled to the second housing;
a second support plate for supporting a second portion of the flexible display when the flexible display is unfolded to at least the second position, the second support plate being disposed within the second housing between at least the second portion of the flexible display and a portion of the second housing, the second support plate having a third joint coupled to a first end of the second support plate and a fourth joint coupled to a second end of the second support plate distal from the first end of the second support plate, the second support plate being pivotable about the third joint as the flexible display is folded and unfolded between the first position and the second position; and
a second slide module in the second housing having a fixed position in relation to the second housing, the second slide module having a second slot that accepts the fourth joint and guides a linear slide movement of the fourth joint along a linear path of movement within the second slot as the second support plate pivots about the third joint;
wherein the second support plate moves according to the third joint and the fourth joint to support at least the second portion of the flexible display when the flexible display is unfolded to the second position and moves according to the third joint and the fourth joint to create a gap between at least a portion of the second support plate and at least the second portion of the flexible display when the flexible display is folded to the first position.

### Claim 6 (depends on 5)

The computing device of claim 5 further comprising:
a first gear at the first joint of the first support plate that meshes with a second gear, the first gear rotating in correspondence with pivot movement of the first support plate about the first joint; and
a third gear at the third joint of the second support plate that meshes with a fourth gear, the third gear rotating in correspondence with pivot movement of the second support plate about the third joint;
wherein the second gear meshes with the fourth gear.

### Claim 7 (depends on 1)

The computing device of claim 1, further comprising:
a second cam at the third joint of the second support plate that rotates in correspondence with pivot movement of the second support plate about the third joint, the second cam having a first concave portion on an exterior surface of the second cam for accepting a second spring-loaded pin when the flexible display is folded to the first position and a second concave portion on the exterior surface of the second cam for accepting the second spring-loaded pin when the flexible display is unfolded to the second position.

### Claim 8 (depends on 7)

The computing device of claim 7, wherein the third joint comprises a third pin operably coupled to the second cam, wherein the second cam rotates about a longitudinal axis of the third pin.

### Claim 9 (depends on 5)

The computing device of claim 5, wherein the fourth joint of the second support plate comprises:
a fourth pin operably coupled to the second support plate, wherein a portion of the fourth pin is disposed within the second slot of the second slide module, and wherein the portion of the fourth pin disposed within the second slot of the second slide module moves along a linear path within the second slot as the second support plate pivots about the third joint.

### Claim 10

A computing device comprising:
a flexible display operable to be folded and unfolded, wherein the flexible display is folded when the computing device is in a closed position and fully unfolded when the computing device is in an open position;
a first housing coupled to the flexible display, wherein the first housing pivots about a first joint coupled to the first housing;
a second housing coupled to the flexible display, wherein the second housing pivots about a second joint coupled to the second housing;
a slide module coupled to the first housing, the slide module having a slot; and
a support plate disposed between a portion of the first housing and a portion of the flexible display, wherein the support plate is coupled to a third joint at a first end of the support plate and to a fourth joint coupled to a second end of the support plate distal to the first end of the support plate, wherein the support plate rotates about the third joint, and wherein at least a portion of the fourth joint is disposed in the slot of the slide module;
wherein the slot of the slide module define a linear path of movement for the fourth joint such that when the support plate rotates about the third joint, the fourth joint moves according to the linear path of movement, such that when the first housing and the second housing rotatably moves away from each other, the movement of the fourth joint according to the linear path of movement causes a portion of the support plate to moves towards the flexible display and to meet the flexible display when the computing device is in the open position, and when the first housing and the second housing rotatably moves towards each other, the movement of the fourth joint according to the linear path of movement causes the portion of the support plate to move away from the flexible display and to leave a gap between the portion of the support plate and the flexible display when the computing device is in the closed position.

### Claim 11 (depends on 10)

The computing device of claim 10, further comprising:
a cam coupled to the third joint of the support plate that rotates in correspondence with pivot movement of the support plate about the first joint, the cam having a first concave portion on an exterior surface of the cam for accepting a spring-loaded pin when the computing device is in the closed position and a second concave portion on the exterior surface of the cam for accepting the spring-loaded pin when the computing device is in the open position.

### Claim 12 (depends on 11)

The computing device of claim 11, wherein the third joint comprises a first pin operably coupled to the cam, wherein the cam rotates about a longitudinal axis of the first pin.

### Claim 13 (depends on 10)

The computing device of claim 10, wherein the slide module is a first module, wherein the slot is a first slot, wherein the support plate is a first support plate, and wherein the portion of the flexible display is a first portion of the flexible display, further comprising:
a second slide module coupled to the second housing, the second slide module having a second slot; and
a second support plate disposed between a portion of the second housing and a second portion of the flexible display, wherein the second support plate is coupled to a fifth joint at a first end of the second support plate and to a sixth joint coupled to a second end of the second support plate distal to the first end of the second support plate, wherein the second support plate rotates about the fifth joint, and wherein at least a portion of the sixth joint is disposed in the second slot of the second slide module;
wherein the second slot of the second slide module define a linear path of movement for the sixth joint such that when the second support plate rotates about the fifth joint, the sixth joint moves according to the linear path of movement, such that when the first housing and the second housing rotatably moves away from each other, the movement of the sixth joint according to the linear path of movement causes a portion of the second support plate to moves towards the flexible display and to meet the flexible display when the computing device is in the open position, and when the first housing and the second housing rotatably moves towards each other, the movement of the sixth joint according to the linear path of movement causes the portion of the second support plate to move away from the flexible display and to leave a gap between the portion of the second support plate and the flexible display when the computing device is in the closed position.

### Claim 14 (depends on 13)

The computing device of claim 13, further comprising:
a second cam coupled to the fifth joint of the second support plate that rotates in correspondence with pivot movement of the second support plate about the first joint of the second support plate, the second cam having a first concave portion on an exterior surface of the second cam for accepting a second spring-loaded pin when the computing device is in the closed position and a second concave portion on the exterior surface of the second cam for accepting the second spring-loaded pin when the computing device is in the open position.

### Claim 15 (depends on 14)

The computing device of claim 14, wherein the fifth joint comprises a second pin operably coupled to the second cam, wherein the second cam rotates about a longitudinal axis of the second pin.

### Claim 16 (depends on 10)

The computing device of claim 10, further comprising:
a first gear at the first joint of the first support plate that meshes with a second gear, the first gear rotating in correspondence with pivot movement of the first support plate about the first joint of the first support plate; and
a third gear at the first joint of the second support plate that meshes with a fourth gear, the third gear rotating in correspondence with pivot movement of the second support plate about the first joint of the second support plate;
wherein the second gear meshes with the fourth gear.