Reinforcing board and display apparatus having the same

Patent metadata

Field	Value
Publication number	US-12495482-B2
Application number	US-202218056504-A
Country	US
Kind code	B2
Filing date	Nov 17, 2022
Priority date	Jan 25, 2022
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

A reinforcing board includes a reinforcing layer that includes a central portion that is thinner than an edge portion, and a plurality of reinforcement members disposed on the central portion. A height of a reinforcement member disposed in a center of the central portion is greater than a height of a reinforcement member disposed in an outer side of the central portion.

First claim

What is claimed is:

1 . A reinforcing board, comprising:
a reinforcing layer that includes a central portion that has a thickness that is less than a thickness of an edge portion, wherein the central portion includes an inner portion in a center of the central portion and outer portions on either side of the inner portion and between the inner portion and the edge portion of the reinforcing layer; and a plurality of reinforcement members disposed on the central portion, wherein a reinforcement member disposed in the inner portion has a height greater than a height of a reinforcement member disposed in the outer portions, and when the reinforcing layer is folded, the reinforcement members face inward from the folded part.

2 . The reinforcing board of claim 1 , wherein a height of each of the plurality of reinforcement members decreases in a direction away from the center of the central portion.

3 . The reinforcing board of claim 2 , wherein a height of each of the plurality of reinforcement members decreases linearly.

4 . The reinforcing board of claim 1 , wherein a height of the reinforcement member in the center of the central portion is greater than a height of the reinforcing layer.

5 . The reinforcing board of claim 1 , wherein
the central portion of the reinforcing layer comprises stripe patterns, and the stripe patterns comprise a plurality of openings and a plurality of blocking portions bonded to the reinforcement members, wherein each opening is an empty space, and the openings and the blocking portions are alternately arranged.

6 . A reinforcing board, comprising:
a reinforcing layer that includes a central portion that has a thickness that is less than a thickness of an edge portion, wherein the central portion includes an inner portion in a center of the central portion and outer portions on either side of the inner portion and between the inner portion and the edge portion of the reinforcing layer; and a plurality of reinforcement members disposed on the central portion,
wherein a reinforcement member disposed in the inner portion has a height greater than a height of a reinforcement member disposed in the outer portions
wherein the reinforcement members include a material that differs from a material of the reinforcing layer.

7 . The reinforcing board of claim 6 , wherein the reinforcement members have a lower melting point than the reinforcing layer.

8 . The reinforcing board of claim 1 , wherein the reinforcement members are arranged on the central portion at equal intervals from each other.

9 . The reinforcing board of claim 1 , wherein heights of the reinforcement members are symmetric with respect to the center of the central portion.

10 . The reinforcing board of claim 1 , wherein a melting point of the reinforcement members is less than a melting point of the reinforcing layer.

11 . A display apparatus, comprising:
a reinforcing board that includes a reinforcing layer that includes a central portion whose thickness is less than a thickness of an edge portion, and a plurality of reinforcement members disposed on the central portion, wherein the central portion includes an inner portion in a center of the central portion and outer portions on either side of the inner portion and between the inner portion and the edge portion of the reinforcing layer; and a display layer disposed on the reinforcing board, wherein a height of a reinforcement member disposed in the inner portion is greater than a height of a reinforcement member disposed in the outer portions, and when the display apparatus is folded, the reinforcement members face inward from the folded part.

12 . The display apparatus of claim 11 , wherein a height of each of the plurality of reinforcement members decreases in a direction away from the center of the central portion.

13 . The display apparatus of claim 12 , wherein a height of each of the plurality of reinforcement members decreases linearly.

14 . The display apparatus of claim 11 , wherein a height of the reinforcement member disposed in the center of the central portion is greater than a height of the reinforcing layer.

15 . The display apparatus of claim 11 , wherein the central portion of the reinforcing layer comprises stripe patterns, and
the stripe patterns comprise a plurality of openings and a plurality of blocking portions bonded to the reinforcement members, wherein each opening is an empty space, and the openings and the blocking portions are alternately arranged.

16 . The display apparatus of claim 11 , wherein the reinforcement members comprise a material that differs from a material of the reinforcing layer.

17 . The display apparatus of claim 16 , wherein the reinforcement members have a lower melting point than the reinforcing layer.

18 . The display apparatus of claim 11 , wherein the reinforcement members are arranged on the central portion at equal intervals from one another.

19 . The display apparatus of claim 11 , wherein heights of the reinforcement members are symmetric with respect to the center of the central portion.

20 . The display apparatus of claim 11 , wherein a melting point of the reinforcement members is less than a melting point of the reinforcing layer.

21 . A reinforcing board, comprising:
a reinforcing layer that includes an edge portion and a central portion that includes a stripe pattern, wherein the central portion includes an inner portion in a center of the central portion and outer portions on either side of the inner portion and between the inner portion and the edge portion of the reinforcing layer; and a substrate disposed on lower portions of the stripe patterns and a portion of a lower surface of the reinforcing layer, wherein the stripe pattern includes a plurality of openings that are alternately arranged with a plurality of blocking portions bonded to a plurality of reinforcement members, wherein a lower portion of the stripe patterns and a portion of the lower surface of the reinforcing layer are disposed on an upper surface of a lower substrate, and wherein a reinforcement member disposed in the inner portion has a height greater than a height of a reinforcement member disposed in the outer portions.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Sangduk
• Kim Wonjin
• Oh Sunok
• Byun Sangchul
• Han Sooyeon

Classifications

• G06F1/1652 Primary

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title

• H10K2102/311

  Flexible OLED · CPC title

• G06F1/1641

  the display being formed by a plurality of foldable display components (G06F1/1647 takes precedence) · CPC title

• G09F9/301 Primary

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

• G06F1/1681

  Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683) · CPC title