Display device

Patent metadata

Field	Value
Publication number	US-12453022-B2
Application number	US-202318097030-A
Country	US
Kind code	B2
Filing date	Jan 13, 2023
Priority date	Jan 26, 2022
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

A display device is provided. The display device includes: a flexible display panel; a flexible plate disposed at a rear of the display panel, and coupled to the display panel; a driving module coupled to a rear of the plate and having a slider that linearly reciprocates; a first wing elongated with a first end being coupled to the slider and a second end being coupled to the rear of the plate, and having a pivot shaft disposed adjacent to the first end between the first end and the second end; a first wing bracket fixed to the rear of the plate at a position adjacent to the pivot shaft of the first wing, and coupled to the pivot shaft of the first wing; a second wing elongated with a first end being coupled to the slider and a second end being coupled to the rear of the plate, and having a pivot shaft disposed adjacent to the first end between the first end and the second end, to be symmetric to the first wing with respect to the slider; and a second wing bracket fixed to the rear of the plate at a position adjacent to the pivot shaft of the second wing, and coupled to the pivot shaft of the second wing.

First claim

What is claimed is:

1. A display device comprising:
a flexible display panel;
a flexible plate disposed at a rear of the display panel, and coupled to the display panel;
a driving module coupled to a rear of the plate and having a slider that linearly reciprocates;
a first wing elongated with a first end being coupled to the slider and a second end being coupled to the rear of the plate, and having a first pivot shaft disposed adjacent to the first end between the first end and the second end;
a first wing bracket fixed to the rear of the plate at a position adjacent to the first pivot shaft of the first wing, and coupled to the first pivot shaft of the first wing;
a second wing elongated with a first end being coupled to the slider and a second end being coupled to the rear of the plate, and having a second pivot shaft disposed adjacent to the first end between the first end and the second end, the second wing being symmetric to the first wing with respect to the slider; and
a second wing bracket fixed to the rear of the plate at a position adjacent to the second pivot shaft of the second wing, and coupled to the second pivot shaft of the second wing,
wherein the driving module comprises:
a front bracket fixed to the rear of the plate;
a rear bracket disposed opposite the front bracket;
a lead screw elongated from the front bracket to the rear bracket, rotatably coupled to the front bracket or the rear bracket, and rotating to move the slider;
a center plate disposed between the rear bracket and the slider;
a first elastic member connecting the center plate and the first wing; and
a second elastic member connecting the center plate and the second wing.

2. The display device of claim 1 , wherein the first elastic member provides a force in a direction and the second elastic member provides a force in a direction different from the direction of the force provided by the first elastic member.

3. The display device of claim 2 , wherein the first elastic member is fixed to the slider to pull the first wing, and the second elastic member is fixed to the slider to pull the second wing.

4. The display device of claim 1 , wherein the center plate has an opening,
wherein the lead screw passes through the opening of the center plate, and the center plate is spaced apart from the lead screw.

5. The display device of claim 4 , wherein the slider is screw-coupled to the lead screw to linearly reciprocate.

6. The display device of claim 1 , wherein the driving module further comprises:
a first guide shaft disposed parallel to the lead screw, and fixed to the front bracket or the rear bracket; and
a second guide shaft disposed parallel to the lead screw, fixed to the front bracket or the rear bracket, and disposed opposite the first guide shaft with respect to the lead screw.

7. The display device of claim 6 , wherein the driving module further comprises a slider guide, into which the first guide shaft and the second guide shaft are inserted such that the slider guide is movable on the first guide shaft and the second guide shaft, and the slider guide fixed to the slider.

8. The display device of claim 1 , wherein the wing brackets further comprise:
upper brackets disposed at an upper side of the wings;
lower brackets disposed at a lower side of the wings; and
a pin connecting the upper brackets and the lower brackets and inserted into the first and/or the second pivot shaft of the wings.

9. The display device of claim 1 , wherein the second wing has a long hole formed in one end,
wherein the slider has a connecting pin inserted into the long hole of the second wing,
wherein a width of the long hole is substantially equal to a diameter of the connecting pin, and a length of the long hole is greater than the diameter of the connecting pin.

10. The display device of claim 9 , wherein the second wing comprises:
a first stepped portion formed at an opening on a first side of the long hole; and
a second stepped portion formed at an opening on a second side of the long hole.

11. The display device of claim 10 , further comprising a bushing into which the connecting pin is inserted, the bushing includes a first head in contact with the first stepped portion, and a second head in contact with the second stepped portion.

12. The display device of claim 11 , wherein the bushing further comprises a connection bar connecting the first head and the second head,
wherein:
the first head comprises a first middle layer in contact with an outer surface of the wing on which the first stepped portion is formed, and a lower layer connected to the middle layer and being in contact with the first stepped portion; and
the second head comprises a second middle layer in contact with an outer surface of the wing on which the second stepped portion is formed, and an upper layer connected to the middle layer and being in contact with the second stepped portion.

13. The display device of claim 12 , wherein:
the first head further comprises an upper layer connected to the first middle layer of the first head and inserted into the slider; and
the second head further comprises a lower layer connected to the second middle layer of the second head and inserted into the slider.

14. The display device of claim 13 , wherein:
a diameter of the first middle layer of the first head is greater than a diameter of the lower layer of the first head; and
a diameter of the second middle layer of the second head is greater than a diameter of the upper layer of the second head.

Assignees

• Lg Electronics Inc

Inventors

• Pyo Jonggil
• Kang Seunggyu

Classifications

• H10K59/35

  comprising red-green-blue [RGB] subpixels · CPC title

• H10K2102/311

  Flexible OLED · CPC title

• H10K77/111

  Flexible substrates · CPC title

• G09F9/301 Primary

  flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED · CPC title

• H05K5/0217 Primary

  Mechanical details of casings (covers, lids, hoods or members for covering apertures H05K5/03) · CPC title