IP Library Granted Patent US 12672409
Granted Patent B2
US 12672409 · App. 18/345,391 · Granted Jun 30, 2026

Stretchable display panel

Inventors: Kyung Cheol Choi (Daejeon, KR); Hag Seon Kim (Daejeon, KR)
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
H10H20/857G06F1/1652H04M1/0268H10W90/00
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Quick Facts
Patent No.
US 12672409
App. No.
18/345,391
Granted
Jun 30, 2026
Kind
B2
Abstract

A stretchable display panel including a first light-emitting module and a second light-emitting module. The first light-emitting module includes a first body, a plurality of first connectors extending from the first body in different directions and each having a predetermined elastic force, first satellite portions extending from the first body in directions different from the directions of the plurality of first connectors, a first adhesive member disposed on the first body, and a first light-emitting element disposed on the first satellite portion. The second light-emitting module includes a second body disposed on the first adhesive member, a plurality of second connectors extending from the second body in different directions and each having a predetermined elastic force, a second satellite portion extending from the second body in a direction different from the directions of the plurality of second connectors and not overlapping the first satellite portion.

Claims (80)

1 . A stretchable display panel comprising:

a first light-emitting module, a second light-emitting module, a third light-emitting module,

wherein the first light-emitting module includes:

a first body;

a plurality of first connectors extending from the first body in different directions and each having a predetermined elastic force;

a first satellite portion extending from the first body in a direction different from the directions of the plurality of first connectors;

a first adhesive member disposed on the first body; and

a first light-emitting element disposed on the first satellite portion,

and the second light-emitting module includes:

a second body disposed on the first adhesive member;

a plurality of second connectors extending from the second body in different directions and each having a predetermined elastic force;

a second satellite portion extending from the second body in a direction different from the directions of the plurality of second connectors and not overlapping the first satellite portion;

a second adhesive member disposed on the second body; and

a second light-emitting element disposed on the second satellite portion,

and the third light-emitting module includes:

a third body disposed on the second adhesive member;

a plurality of third connectors extending from the third body in different directions and each having a predetermined elastic force;

a third satellite portion extending from the third body in a direction different from the directions of the plurality of third connectors and not overlapping the first satellite portion and the second satellite portion;

a third adhesive member disposed on the third body; and

a third light-emitting element disposed on the third satellite portion.

2 . The stretchable display panel of claim 1 , further comprising:

a fourth light-emitting module,

wherein the fourth light-emitting module includes:

a fourth body disposed on the third adhesive member;

a plurality of fourth connectors extending from the fourth body in different directions and each having a predetermined elastic force;

a fourth satellite portion extending from the fourth body in a direction different from the directions of the plurality of fourth connectors and not overlapping the first satellite portion, the second satellite portion, and the third satellite portion;

a fourth adhesive member disposed on the fourth body; and

a fourth light-emitting element disposed on the fourth satellite portion.

3 . The stretchable display panel of claim 2 , further comprising:

a fifth light-emitting module,

wherein the fifth light-emitting module includes:

a fifth body disposed on the fourth adhesive member; and

a fifth light-emitting element disposed on the fifth body.

4 . The stretchable display panel of claim 3 , wherein the fifth light-emitting element is disposed between the first light-emitting element and the third light-emitting element on a flat surface.

5 . The stretchable display panel of claim 4 , wherein the fifth light-emitting element is disposed between the second light-emitting element and the fourth light-emitting element on a flat surface.

6 . The stretchable display panel of claim 3 , further comprising:

a sixth light-emitting element,

wherein the fourth light-emitting element and the sixth light-emitting element overlap in a first state; and

the fourth light-emitting element and the sixth light-emitting element do not overlap in a second state.

7 . The stretchable display panel of claim 6 , wherein light emitted from the fourth light-emitting element has the same color as light emitted from the sixth light-emitting element.

8 . The stretchable display panel of claim 6 , wherein both the fourth light-emitting element and the sixth light-emitting element are turned on in the first state and the second state.

9 . The stretchable display panel of claim 6 , wherein:

any one of the fourth light-emitting element and the sixth light-emitting element is turned on in the first state; and

both the fourth light-emitting element and the sixth light-emitting element are turned on in the second state.

10 . A stretchable display panel comprising:

a base member;

a first light emission portion including a plurality of first light-emitting elements disposed on the base member; and

a second light emission portion including a plurality of second light-emitting elements disposed on the base member,

wherein, in a first state in which the base member is not stretched, some of the plurality of first light-emitting elements overlap some of the plurality of second light-emitting elements, half of overlapping light-emitting elements among the plurality of first light-emitting elements and the plurality of second light-emitting elements are turned on, and the other half of the overlapping light-emitting elements thereof are turned off, and

wherein, in a second state in which the base member is stretched, the plurality of first light-emitting elements do not overlap the plurality of second light-emitting elements, and all the plurality of first light-emitting elements and the plurality of second light-emitting elements are turned on.

11 . The stretchable display panel of claim 10 , wherein the plurality of first light-emitting elements are disposed on different layers.

12 . The stretchable display panel of claim 11 , wherein the plurality of second light-emitting elements are disposed on different layers.

13 . The stretchable display panel of claim 10 , wherein, in the first state, light-emitting elements overlapping each other among the plurality of first light-emitting elements and the plurality of second light-emitting elements emit the same color of light.

14 . A stretchable display panel comprising:

a first light-emitting module, a second light-emitting module, and a third light-emitting module,

wherein the first light-emitting module includes:

a first body;

a plurality of first connectors extending from the first body in different directions and each having a predetermined elastic force;

a first satellite portion extending from the first body in a direction different from the directions of the plurality of first connectors; and

a first light-emitting element disposed on the first satellite portion,

and the second light-emitting module includes:

a second body disposed on the first body;

a plurality of second connectors extending from the second body in different directions and each having a predetermined elastic force;

a second satellite portion extending from the second body in a direction different from the directions of the plurality of second connectors and not overlapping the first satellite portion; and

a second light-emitting element disposed on the second satellite portion,

and the third light-emitting module includes:

a third body disposed on the second body;

a plurality of third connectors extending from the third body in different directions and each having a predetermined elastic force;

a third satellite portion extending from the third body in a direction different from the directions of the plurality of third connectors and not overlapping the first satellite portion and the second satellite portion; and

a third light-emitting element disposed on the third satellite portion.

15 . The stretchable display panel of claim 14 , further comprising:

a fourth light-emitting module,

wherein the fourth light-emitting module includes:

a fourth body disposed on the third body;

a plurality of fourth connectors extending from the fourth body in different directions and each having a predetermined elastic force;

a fourth satellite portion extending from the fourth body in a direction different from the directions of the plurality of fourth connectors and not overlapping the first satellite portion, the second satellite portion, and the third satellite portion; and

a fourth light-emitting element disposed on the fourth satellite portion.

16 . The stretchable display panel of claim 15 , further comprising:

a fifth light-emitting module,

wherein the fifth light-emitting module includes a fifth light-emitting element disposed on the fourth body.