Display device

Patent metadata

Field	Value
Publication number	US-2022172650-A1
Application number	US-202117541033-A
Country	US
Kind code	A1
Filing date	Dec 2, 2021
Priority date	Dec 2, 2020
Publication date	Jun 2, 2022
Grant date	—

Abstract

A display device can include a display panel, a cover supporting a rear surface of the display panel and including a plurality of openings in the cover, a roller configured to wind and unwind the display panel and the cover, and an adhesive unit bonding the display panel with the cover. The adhesive unit includes a first adhesive member, a base layer disposed on the first adhesive member and having a plurality of patterns, and a second adhesive member disposed on the base layer.

First claim

What is claimed is:

1 . A display device, comprising:
a display panel; a cover supporting a rear surface of the display panel and including a plurality of openings in the cover; a roller configured to wind and unwind the display panel and the cover; and an adhesive unit bonding the display panel with the cover, wherein the adhesive unit includes:
a first adhesive member;
a base layer disposed on the first adhesive member and having a plurality of patterns; and
a second adhesive member disposed on the base layer.

2 . The display device according to claim 1 , wherein each of the plurality of patterns in the base layer has a hole shape.

3 . The display device according to claim 2 , wherein a shape and a size of each of the plurality of patterns in the base layer is substantially equal to as a shape and a size of each of the plurality of openings in the cover, and
wherein the plurality of patterns in the base layer and the plurality of openings in the cover are alternately disposed.

4 . The display device according to claim 2 , wherein a shape of each of the plurality of patterns in the base layer is substantially equal to a shape of each of the plurality of openings in the cover, and
wherein a size of each of the plurality of patterns in the base layer is different than a size of each of the plurality of openings in the cover.

5 . The display device according to claim 2 , wherein a shape of each of the plurality of patterns in the base layer is different from a shape of each of the plurality of openings in the cover.

6 . The display device according to claim 5 , wherein the base layer has a honeycomb shape and each of the plurality of patterns has a hexagonal shape, and
wherein centers of the plurality of patterns in the base layer overlap with the plurality of openings in the cover.

7 . The display device according to claim 5 , wherein the base layer has a honeycomb shape and each of the plurality of patterns has a hexagonal shape, and
wherein centers of the plurality of patterns in the base layer overlap a space between two adjacent openings among the plurality of openings in the cover.

8 . The display device according to claim 5 , wherein each of the plurality of patterns in the base layer has a hexagonal hourglass shape, and
wherein centers of the plurality of patterns in the base layer overlap with the plurality of openings in the cover.

9 . The display device according to claim 5 , wherein each of the plurality of patterns in the base layer has a hexagonal hourglass shape, and
wherein centers of the plurality of patterns in the base layer overlap a space between two adjacent openings among the plurality of openings in the cover.

10 . The display device according to claim 1 , wherein each of the plurality of patterns in the base layer is a pattern of base material having a same shape as each of the plurality of openings in the cover, and
wherein the plurality of patterns in the base layer overlap the plurality of openings.

11 . The display device according to claim 10 , wherein a size of each of the plurality of patterns in the base layer is substantially equal to or larger than a size of each of the plurality of openings in the cover.

12 . A rollable display device, comprising:
a display panel; a cover disposed on a rear surface of the display panel and including a plurality of openings in the cover; and an adhesive unit attaching the display panel to the cover, wherein the adhesive unit includes:
a base layer;
a first adhesive member disposed between the base layer and the display panel; and
a second adhesive member disposed between the base layer and the cover.

13 . The rollable display device according to claim 12 , wherein each of the plurality of patterns in the base layer has a hole shape.

14 . The rollable display device according to claim 13 , wherein a shape and a size of each of the plurality of patterns in the base layer are substantially equal to a shape and a size of each of the plurality of openings in the cover, and
wherein the plurality of patterns in the base layer and the plurality of openings in the cover are alternately disposed.

15 . The rollable display device according to claim 13 , wherein a shape of each of the plurality of patterns in the base layer is substantially equal to a shape of each of the plurality of openings in the cover, and
wherein a size of each of the plurality of patterns in the base layer is different from a size of each of the plurality of openings in the cover.

16 . The rollable display device according to claim 13 , wherein a shape of each of the plurality of patterns in the base layer is different from a shape of each of the plurality of openings in the cover, and
wherein the plurality of openings are disposed to be staggered from the plurality of openings in adjacent rows.

17 . The rollable display device according to claim 16 , wherein a vertex of each of the plurality of patterns in the base layer overlaps with an opening among the plurality of openings in the cover.

18 . The rollable display device according to claim 16 , wherein each of the plurality of patterns in the base layer has a hexagonal shape, and
wherein one or more sides of each hexagonal shape of the plurality of patterns in the base layer completely overlaps one or more openings among the plurality of openings in the cover.

19 . The rollable display device according to claim 16 , wherein each of the plurality of patterns in the base layer has a hexagonal shape, and
wherein all six sides of the hexagon shape partially overlap with openings among the plurality of openings in the cover.

20 . The rollable display device according to claim 16 , wherein the base layer is formed of a portion of a base material forming a honeycomb shape or an hourglass shape.

Assignees

• Lg Display Co Ltd

Inventors

• Song Jihun
• Kwon Hoiyong

Classifications

• G09F9/301 Primary

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

• B32B37/12

  characterised by using adhesives · CPC title

• B32B3/266

  characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12 · CPC title

• H10K2102/311

  Flexible OLED · CPC title

• H10K77/111

  Flexible substrates · CPC title