Foldable display apparatus

Patent metadata

Field	Value
Publication number	US-11610520-B2
Application number	US-202017075972-A
Country	US
Kind code	B2
Filing date	Oct 21, 2020
Priority date	Oct 22, 2019
Publication date	Mar 21, 2023
Grant date	Mar 21, 2023

Abstract

A foldable display apparatus includes a display panel including a flexible substrate, in which at least one folding area folded based on a folding axis and non-folding areas disposed at one side and the other side of the folding area are defined, a glass substrate disposed below the flexible substrate, including an opening portion corresponding to the folding area, and a pattern frame disposed below the glass substrate, wherein the flexible substrate includes at least one groove pattern formed to overlap the folding area, and the groove pattern is formed on a rear surface of the flexible substrate.

First claim

What is claimed is:

1. A foldable display apparatus, comprising:
a display panel including a flexible substrate, in which at least one folding area folded based on a folding axis and non-folding areas disposed at one side and the other side of the folding area are defined;
a glass substrate disposed below the flexible substrate, including an opening portion corresponding to the folding area; and
a pattern frame disposed below the glass substrate,
wherein the flexible substrate includes at least one groove pattern formed to overlap the folding area, and the groove pattern is formed on a rear surface of the flexible substrate.

2. The foldable display apparatus of claim 1 , wherein the groove pattern is a line pattern extended to be parallel with the folding axis.

3. The foldable display apparatus of claim 1 , wherein the groove pattern includes at least one sectional shape of a semicircle, a rectangle and a trapezoid.

4. The foldable display apparatus of claim 1 , wherein the pattern frame includes an opening pattern corresponding to the folding area.

5. The foldable display apparatus of claim 1 , further comprising a filling member filled in the groove pattern.

6. The foldable display apparatus of claim 5 , wherein the filling member is formed to additionally fill the opening portion of the glass substrate.

7. The foldable display apparatus of claim 6 , wherein the filling member includes a filling member groove pattern corresponding to the folding area, and the filling member groove pattern is formed on a rear surface of the filling member.

8. The foldable display apparatus of claim 1 , wherein the foldable display apparatus further includes an additional pattern frame corresponding to the opening portion, and the additional pattern frame is formed between the filling member and the pattern frame.

Assignees

• Lg Display Co Ltd

Inventors

• Park Seongwoo
• Paek Seunghan
• An Hyunjin
• Yoon Kyungjae

Classifications

• G06F1/1652 Primary

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

• G09F9/301 Primary

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

• G06F1/1641

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

• G06F2200/161

  Indexing scheme relating to constructional details of the monitor · CPC title

• G06F1/1643

  the display being associated to a digitizer, e.g. laptops that can be used as penpads (details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615) · CPC title