# US 12,604,424 B2 · Display device

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- Number: US 12,604,424 B2
- Document ID: US12604424B2
- Status: Granted
- Kind: B2
- Application number: 18/292,752
- Filed: 2021-09-03
- Published: 2024-08-22
- Granted: 2026-04-14
- Earliest claimed: 2021-07-29
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Seokhun Na; Kwangho Choi; Chulki Kim; Hyongil Kil; Minook Lee
- Web page: https://patentgrep.com/patent/US12604424B2

## CPC

- G09F 9/30: in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00)
- H05K 5/0217: {Mechanical details of casings (covers, lids, hoods or members for covering apertures H05K5/03)}
- G06F 1/16: Constructional details or arrangements
- G09F 9/00: Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00)
- G09F 9/301: {flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED}
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A display device is disclosed. The display device includes: a flexible display panel; a flexible plate which is disposed at a rear of the display panel, and to which the display panel is coupled; a mount fixed to a rear of the plate; and a bar curved and elongated, and mounted on the mount to be axially rotatable.

## Claims

### Claim 1

A display device comprising:
a flexible display panel;
a flexible plate at a rear of the display panel, the plate coupled with the display panel;
a mount fixed to a rear of the plate;
a bar curved and elongated, and mounted on the mount to be axially rotatable;
a first side frame adjacent to a first end of the bar, the first side frame fixed to the rear of the plate;
a second side frame adjacent to a second end of the bar, the second side frame fixed to the rear of the plate;
a first slider connecting the first side frame and the bar; and
a second slider connecting the second side frame and the bar,
wherein the first side frame comprises a guide slot elongated in a direction intersecting the bar and elongated in a longitudinal direction of the side frame,
wherein the first slider comprises:
a ring into which the bar is inserted;
a head moving on the guide slot; and
a neck connecting the ring and the head, and
wherein the ring is fixed to the neck, and the head is rotatably coupled to the neck.

### Claim 2 (depends on 1)

The display device of claim 1, wherein the ring comprises:
an outer circumferential surface;
a first inner circumferential surface inclined with respect to the outer circumferential surface; and
a second inner circumferential surface inclined with respect to the outer circumferential surface and symmetrical to the first inner circumferential surface with respect to a circumference of the ring.

### Claim 3 (depends on 2)

The display device of claim 2, wherein the ring further comprises:
a third inner circumferential surface disposed between the first inner circumferential surface and the second inner circumferential surface,
wherein a boundary between the first inner circumferential surface and the third inner circumferential surface is rounded, and a boundary between the second inner circumferential surface and the third inner circumferential surface is rounded.

### Claim 4 (depends on 1)

The display device of claim 1, wherein the guide slot further comprises:
a first guide slot formed by removing one surface of the side frame facing the bar; and
a second guide slot formed by removing another surface of the side frame facing the plate,
wherein a width of the first guide slot is smaller than a width of the second guide slot.

### Claim 5 (depends on 4)

The display device of claim 4, wherein the head is disposed in the second guide slot, and the neck is disposed in the first guide slot,
wherein a diameter of the head is greater than a diameter of the neck.

### Claim 6 (depends on 1)

The display device of claim 1, wherein the display panel comprises:
a first long side forming an upper side;
a second long side forming a lower side;
a first short side connecting the first long side and the second long side; and
a second short side facing the first short side and connecting the first long side and the second long side,
wherein the mount is closer to the second long side than the first long side, and both ends of the bar are closer to the first long side than the second long side.

### Claim 7 (depends on 1)

The display device of claim 1, wherein bar comprises:
a first cam formed on an outer circumferential surface; and
a second cam formed on the outer circumferential surface and circumferentially spaced apart from the first cam.

### Claim 8 (depends on 7)

The display device of claim 7, wherein an angle formed between the second cam and the first cam is within 180 degrees with respect to a central axis of the bar.

### Claim 9 (depends on 1)

The display device of claim 1, wherein as the bar rotates, the display panel is concavely curved at a front.
