Display apparatus

Patent metadata

Field	Value
Publication number	US-12490642-B2
Application number	US-202217888928-A
Country	US
Kind code	B2
Filing date	Aug 16, 2022
Priority date	Sep 9, 2021
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

A display apparatus includes a display panel including a base portion and a plurality of connection portions extending from the base portion in different directions, and a first member disposed on a surface of the display panel and including a first portion overlapping the base portion of the display panel and a second portion overlapping the plurality of connection portions of the display panel, where a modulus of the second portion of the first member is less than a modulus of the first portion of the first member.

First claim

What is claimed is:

1 . A display apparatus comprising:
a display panel comprising:
a base portion; and
a plurality of connection portions extending from the base portion in different directions; and
a first member disposed on a surface of the display panel and comprising:
a first portion overlapping the base portion of the display panel; and
a second portion overlapping the plurality of connection portions of the display panel,
wherein a modulus of the second portion of the first member is less than a modulus of the first portion of the first member, and the first member further comprises a third portion overlapping each of the plurality of connection portions of the display panel and having a different modulus from the modulus of the second portion of the first member.

2 . The display apparatus of claim 1 , further comprising a second member disposed on a first surface of the first member and overlapping the first portion and the second portion of the first member, the first surface of the first member being opposite to a second surface of the first member facing the surface of the display panel,
wherein a modulus of the second member is less than a modulus of the first portion of the first member.

3 . The display apparatus of claim 1 , wherein the second portion of the first member comprises elastomer having a positive Poisson's ratio.

4 . The display apparatus of claim 1 , wherein an area size of the first portion of the first member is equal to or greater than an area size of the base portion of the display panel.

5 . The display apparatus of claim 1 , wherein a thickness of the first member is about 1 micrometer to about 1000 micrometers.

6 . The display apparatus of claim 1 , wherein a surface of the second portion of the first member facing the display panel is attached to the plurality of connection portions of the display panel.

7 . The display apparatus of claim 1 , further comprising an adhesive layer between the display panel and the first member.

8 . The display apparatus of claim 1 , wherein the first portion is provided in plural to comprise a plurality of first portions,
wherein the second portion is disposed between adjacent first portions of a plurality of first portions arranged side by side, wherein a thickness of the second portion is capable of increasing in a direction perpendicular to the direction along which the adjacent first portions are being arranged side by side when the adjacent first portions come close to each other in a direction along which the adjacent first portions are arranged side by side.

9 . The display apparatus of claim 1 , wherein the third portion of the first member is closer to a second surface of the first member facing the display panel than to a first surface of the first member opposite to the second surface of the first member in a cross-sectional view.

10 . The display apparatus of claim 1 , wherein a length of the third portion of the first member in a first direction is equal to or less than a length of a corresponding connection portion from among the plurality of connection portions of the display panel in the first direction.

11 . The display apparatus of claim 1 , wherein the third portion of the first member is provided in plural to comprise a plurality of third portions, and the plurality of third portions is arranged in a first direction and a second direction crossing the first direction in a plan view.

12 . The display apparatus of claim 1 , wherein the third portion of the first member comprises a 3-1 portion and a 3-2 portion spaced apart from each other and having different area sizes from each other in a plan view.

13 . The display apparatus of claim 1 , wherein the third portion of the first member comprises a 3-3 portion and a 3-4 portion spaced apart from each other in a plan view and having different Poisson's ratios from each other.

14 . A display apparatus comprising:
a substrate comprising:
a first area; and
a plurality of second areas extending from the first area in different directions;
a pixel circuit disposed in the first area of the substrate and comprising:
a plurality of thin-film transistors; and
a storage capacitor;
a light-emitting device disposed in the first area of the substrate and electrically connected to the pixel circuit; wiring which is disposed in a second area of the second areas of the substrate and applies an electrical signal to the pixel circuit; a first member disposed on a surface of the substrate and comprising:
a first portion overlapping the first area of the substrate; and
a second portion overlapping the plurality of second areas of the substrate; and
a second member disposed on a first surface of the first member, the first surface of the first member being opposite to a second surface of the first member facing the surface of the substrate, wherein a modulus of the second portion of the first member and a modulus of the second member are less than a modulus of the first portion of the first member, and the first member further comprises a third portion overlapping each of the plurality of second areas of the substrate and having a different modulus from the modulus of the second portion of the first member.

15 . The display apparatus of claim 14 , wherein an area size of the first portion of the first member is equal to or greater than an area size of the first area of the substrate.

16 . The display apparatus of claim 14 , wherein a thickness of the first member is about 1 micrometer to about 1000 micrometers.

17 . The display apparatus of claim 14 , wherein a surface of the second portion of the first member facing the substrate is attached to the plurality of second areas of the substrate.

18 . The display apparatus of claim 14 , wherein the third portion of the first member is closer to the first surface of the first member facing the substrate than to the second surface of the first member opposite to the first surface of the first member in a cross-sectional view.

19 . The display apparatus of claim 14 , wherein a length of the third portion of the first member in a first direction is equal to or less than a length of a corresponding second area from among the plurality of second areas of the substrate in the first direction.

20 . The display apparatus of claim 14 , wherein the third portion of the first member is provided in plural to comprise a plurality of third portions, and the plurality of third portions is arranged in a first direction and a second direction crossing the first direction in a plan view.

21 . The display apparatus of claim 14 , wherein the third portion of the first member comprises a 3-1 portion and a 3-2 portion spaced apart from each other and having different area sizes from each other in a plan view.

Assignees

• Samsung Display Co Ltd

Inventors

• Yoon Jangyeol
• Kim Seongwon
• Lee Jiwon

Classifications

• H10K2102/311

  Flexible OLED · CPC title

• H10K59/1213

  the pixel elements being TFTs · CPC title

• H10K59/353 Primary

  characterised by the geometrical arrangement of the RGB subpixels · CPC title

• H10K77/111 Primary

  Flexible substrates · CPC title

• H10K2102/351

  Thickness · CPC title