IP Library › Granted Patent US 12,641,171
Granted Patent B2
US 12,641,171 · App. 19/239,664 · Granted May 26, 2026

Electronic device including foldable display

Inventors: Dongkee Jung (Gyeonggi-do, KR); Kyuhwan Lee (Gyeonggi-do, KR); Haejin Lee (Gyeonggi-do, KR); Juhee Han (Gyeonggi-do, KR)
Assignee: Samsung Electronics Co., Ltd.
H04M1/0268G06F1/1641G06F1/1652G06F1/1681G06F1/203H04M1/0216
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Quick Facts
Patent No.
US 12,641,171
App. No.
19/239,664
Granted
May 26, 2026
Kind
B2
Abstract

An electronic device may include: a foldable housing including a first housing and a second housing foldable and unfoldable relative to each other via at least a hinge structure; a flexible display accommodated at least partially in the first housing and the second housing, and including a folding region configured to be folded and unfolded according to the foldable housing being folded and unfolded, respectively; an electronic component accommodated in the first housing and/or the second housing; and a heat dissipation sheet disposed under at least the flexible display and at least partially over the electronic component.

Claims (46)

1 . An electronic device comprising:

a foldable housing including a first housing and a second housing foldable and unfoldable relative to each other via at least a hinge structure;

a flexible display accommodated at least partially in the first housing and the second housing, and including a folding region configured to be folded and unfolded according to the foldable housing being folded and unfolded, respectively;

an electronic component accommodated in the first housing and/or the second housing; and

a heat dissipation sheet disposed under at least the flexible display and at least partially over the electronic component, the heat dissipation sheet including a first portion corresponding to the first housing, a second portion corresponding to the second housing, and a third portion corresponding to the hinge structure,

wherein the heat dissipation sheet includes a heat transfer sheet and a first external layer,

wherein at least a portion of the first external layer and a portion of the heat transfer sheet are correspondingly folded at least once with respect to another portion of the first external layer corresponding to the first portion or the second portion such that the at least a portion of the first external layer and the corresponding portion of the heat transfer sheet are protruded as facing away from the folding region relative to the first portion and/or the second portion.

2 . The electronic device of claim 1 , wherein the heat dissipation sheet includes a second external layer facing a rear side of the foldable housing, and

wherein the at least a portion of the first external layer corresponding to the third portion is not bonded to the flexible display.

3 . The electronic device of claim 1 , wherein the at least a portion of the first external layer is protruded as facing away from the folding region relative to the another portion of the first external layer corresponding to the first portion or the second portion in an unfolded state.

4 . The electronic device of claim 1 , wherein the flexible display includes a display panel and a metal inclusive plate disposed under the display panel, the metal inclusive plate including a patterned area corresponding to the folding region, and

wherein the at least a portion of the first external layer is not bonded to the patterned area.

5 . The electronic device of claim 2 , wherein the heat transfer sheet is disposed between at least the first external layer and the second external layer.

6 . The electronic device of claim 1 , further comprising an adhesive layer configured to fix at least one of the first portion of the heat dissipation sheet or the second portion of the heat dissipation sheet.

7 . The electronic device of claim 6 , wherein the adhesive layer includes an opening corresponding to the third portion, and

wherein at least a portion of the third portion is disposed in at least a portion of the opening according to the foldable housing being folded.

8 . The electronic device of claim 1 , further comprising:

a first support plate disposed on a rear surface of the heat dissipation sheet and corresponding to the first housing; and

a second support plate disposed on the rear surface of the heat dissipation sheet and corresponding to the second housing.

9 . The electronic device of claim 8 , wherein the electronic component includes a printed circuit board, and

wherein the printed circuit board includes a first printed circuit board disposed on a side of the first support plate, and a second printed circuit board disposed on a side of the second support plate.

10 . The electronic device of claim 1 , wherein the electronic component includes a display driver IC (DDI), a touch display driver IC (TDDI) configured to control the flexible display, a control circuit, or a connection pad.

11 . An electronic device comprising:

a foldable housing including a first housing and a second housing;

a hinge structure, comprising a hinge, configured for rotatably connecting the first housing and the second housing;

a flexible display including a first region accommodated at least partially in the first housing, a second region accommodated at least partially in the second housing, and a folding region positioned between at least the first region and the second region;

an electronic component, comprising a conductor, disposed at least partially in the first housing and/or the second housing; and

a heat dissipation member, comprising heat dissipating material, disposed under at least the flexible display and including a heat transfer sheet and a first external layer, the heat dissipation member being disposed proximate the electronic component and configured to dissipate heat generated from the electronic component,

wherein the heat dissipation member includes a first portion at least partially corresponding to the first region, a second portion at least partially corresponding to the second region, and a third portion at least partially corresponding to the folding region, and

wherein at least a portion of the first external layer and a portion of the heat transfer sheet in the third portion are correspondingly folded at least once with respect to another portion of the first external layer corresponding to the first portion and/or the second portion such that the at least portion of the first external layer and the corresponding portion of the heat transfer sheet are protruded as facing away from the folding region relative to the first portion and/or the second portion.

12 . The electronic device of claim 11 , wherein the heat dissipation member includes a second external layer facing a rear side of the foldable housing, respectively, and

wherein the at least a portion of the first external layer corresponding to the at least portion of the third portion is not bonded to the flexible display.

13 . The electronic device of claim 11 , wherein the at least a portion of the first external layer is protruded as facing away from the folding region relative to the another portion of the first external layer corresponding to the first portion or the second portion in an unfolded state.

14 . The electronic device of claim 11 , wherein the flexible display includes a display panel and a metal inclusive plate disposed under the display panel, the metal inclusive plate including a patterned area corresponding to the folding region, and

wherein the at least a portion of the first external layer is not bonded to the patterned area.

15 . The electronic device of claim 12 , wherein the heat dissipation member includes a heat transfer member disposed between at least the first external layer and the second external layer, and

wherein a portion of the heat transfer member is protruded substantially according to the protruding of the portion of the first external layer.

16 . The electronic device of claim 11 , further comprising an adhesive layer configured to fix at least one of the first portion of the heat dissipation member and/or the second portion of the heat dissipation member.

17 . The electronic device of claim 16 , wherein the adhesive layer includes an opening corresponding to the third portion, and

wherein at least a portion of the third portion is disposed in at least a portion of the opening according to the foldable housing being folded.

18 . The electronic device of claim 11 , further comprising:

a first support plate disposed on a rear surface of the heat dissipation member and corresponding to the first housing; and

a second support plate disposed on the rear surface of the heat dissipation member and corresponding to the second housing.

19 . The electronic device of claim 18 , wherein the electronic component includes a printed circuit board, and

wherein the printed circuit board includes a first printed circuit board disposed on a side of the first support plate, and a second printed circuit board disposed on a side of the second support plate.

20 . The electronic device of claim 11 , wherein the electronic component includes a display driver IC (DDI), a touch display driver IC (TDDI) configured to control the flexible display, a control circuit, and/or a connection pad.

Priority Claims (1)
KR 10-2021-0008232 · Jan 20, 2021 · national
Continuity (3)
Continuation 18110451 · Feb 16, 2023
Continuation PCTKR2022001051 · Jan 20, 2022
Related Publication 20250392660A1 · Dec 25, 2025
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