Display device

Patent metadata

Field	Value
Publication number	US-12520439-B2
Application number	US-202318239966-A
Country	US
Kind code	B2
Filing date	Aug 30, 2023
Priority date	Dec 22, 2022
Publication date	Jan 6, 2026
Grant date	Jan 6, 2026

Abstract

A display device includes: a display module; a first support plate disposed under the display module, and including a first flat part and a ductile part, where the ductile part extends from the first flat part in a first direction and has a plurality of openings defined therein; a second support plate including a second flat part disposed under the first flat part and a plurality of supporting bars disposed under the ductile part and arranged in the first direction; and a resin layer disposed between the first support plate and the second support plate.

First claim

What is claimed is:

1 . A display device, comprising:
a display module; a first support plate disposed under the display module, and including a first flat part and a ductile part, wherein the ductile part extends from the first flat part in a first direction and has a plurality of openings defined therein; a second support plate including a second flat part disposed under the first flat part and a plurality of support bars disposed under the ductile part and arranged in the first direction; and resin layers disposed between the first support plate and the second support plate, wherein a plurality of grooves are defined in a lower surface of the ductile part or upper surfaces of the support bars.

2 . The display device of claim 1 , wherein the grooves include:
a plurality of first grooves defined in the lower surface of the ductile part; and a plurality of second grooves, each defined in each of the upper surfaces of the support bars.

3 . The display device of claim 2 , wherein the resin layers fill the first grooves and the second grooves.

4 . The display device of claim 3 , wherein the ductile part and the support bars are bonded together by the resin layers filled in the first grooves and the second grooves.

5 . The display device of claim 2 , wherein the first grooves and the second grooves have a same shape as each other and are disposed to be symmetric to each other.

6 . The display device of claim 2 , wherein the ductile part includes:
a plurality of first parts overlapping the support bars; and a plurality of second parts disposed between the first parts, the first grooves being defined in lower surfaces of the first parts.

7 . The display device of claim 6 , wherein a plurality of openings are defined in the second parts, and are not defined in the first parts.

8 . The display device of claim 7 , wherein the plurality of openings are arranged in the first direction and a second direction crossing the first direction,
openings disposed in an h-th column and openings disposed in a h+1-th column among the plurality of openings are alternately disposed in a staggered manner, the columns correspond to the second direction, and the h is a natural number.

9 . The display device of claim 6 , wherein the resin layers comprise:
a first resin layer disposed between the first flat part and the second flat part; and a plurality of second resin layers disposed between the support bars and the first parts.

10 . The display device of claim 2 , wherein each of the support bars comprises:
a first support part adjacent to the ductile part; and a second support part extending downward from the first support part, the second support part has a maximum width greater than the first support part in the first direction, and the second grooves are defined in an upper surface of the first support part.

11 . The display device of claim 2 , wherein the first and the second grooves extend in a second direction crossing the first direction,
and the first and the second grooves are defined to extend up to opposite side surfaces of the support bars opposed to each other in the second direction and up to opposite side surfaces of the ductile part opposed to each other in the second direction.

12 . The display device of claim 2 , wherein the first grooves are different in shape from the second grooves in a side view.

13 . The display device of claim 2 , wherein a first depth of each of the first grooves is different from a second depth of each of the second grooves.

14 . The display device of claim 1 , further comprising a first case and a second case which are configured to accommodate the display module and the first and the second support plates, and which are coupled to each other and to move in the first direction,
wherein the ductile part is folded and accommodated in a part of the first case and the second case coupled to each other.

15 . The display device of claim 1 , wherein the grooves are defined in the each of the upper surfaces of the support bars.

16 . The display device of claim 1 , wherein the grooves are defined in the lower surface of the ductile part.

17 . The display device of claim 1 , wherein the first flat part includes:
a first flat surface; a first folding part extending from the first flat surface in the first direction; and a second flat surface extending from the first folding part in the first direction, wherein a plurality of first openings are defined in the first folding part.

18 . The display device of claim 17 , wherein the second flat part comprises:
a third flat surface; a second folding part extending from the third flat surface in the first direction; and a fourth flat surface extending from the second folding part in the first direction, wherein a plurality of second openings are defined in the second folding part.

19 . The display device of claim 1 , wherein the grooves each have a shape corresponding to a part of a circle, a part of a tetragon, or a part of a triangle.

20 . A display device, comprising:
a display module; a first support plate disposed under the display module; a second support plate disposed under the first support plate, and including a flat part and a plurality of support bars arranged from the flat part in a first direction; and a resin layer disposed between the first support plate and the second support plate, wherein a plurality of grooves are defined in upper surfaces of the support bars, and the resin layer fills the grooves.

21 . The display device of claim 20 , wherein the grooves are further defined in a lower surface of a portion of the first support plate that faces the support bars, and the resin layer further fills the grooves defined in the lower surface.

22 . A display device, comprising:
a display module; a first support plate disposed under the display module, and including a first flat part and a ductile part, wherein the ductile part extends from the first flat part and has a plurality of openings defined therein; and a second support plate including a second flat part disposed under the first flat part and a plurality of support bars disposed under the ductile part and arranged in a first direction; wherein a plurality of grooves are defined in a lower surface of the ductile part and upper surfaces of the support bars.

Assignees

• Samsung Display Co Ltd
• Auflex Co Ltd

Inventors

• Lee Junghun
• Woo Yoon-Je
• Kim Dong-Jin
• Ahn Sungsang
• Yang Taehoon

Classifications

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K2102/311

  Flexible OLED · CPC title

• G06F2203/04102

  Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper · CPC title

• H04M1/0216

  Foldable in one direction, i.e. using a one degree of freedom hinge · CPC title

• H10K77/111 Primary

  Flexible substrates · CPC title