IP Library Granted Patent US 12,422,962
Granted Patent B2
US 12,422,962 · App. 18/388,111 · Granted Sep 23, 2025

Electronic device including circuit board including electromagnetic shielding layer

Inventors: Sungu Kim (Seoul, KR); Kukbin Lim (Seoul, KR); Taekwang Kim (Asan-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
G06F3/0446G06F1/1616G06F1/1643H10K50/865H10K59/131H10K59/38H10K59/40H10K59/8792G06F2203/04107
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Quick Facts
Patent No.
US 12,422,962
App. No.
18/388,111
Granted
Sep 23, 2025
Kind
B2
Abstract

An electronic device including a display panel which displays an image, an input sensor on the display panel, and including a first sensing electrode, a second sensing electrode crossing the first sensing electrode, first and second signal lines connected to ends of the first sensing electrode, and a third signal line connected to one end of the second sensing electrode, and a circuit board electrically connected to the input sensor. The circuit board includes a plurality of insulating layers, a first group signal line disposed on the plurality of insulating layers, and one end of which is electrically connected to the first signal line, a second group signal line disposed on the plurality of insulating layers, and one end of which is electrically connected to the second signal line, and an electromagnetic shielding layer disposed on a portion of the second group signal line.

Claims (70)

1. An electronic device comprising:

a display panel including a plurality of light-emitting elements, a first region having a transmissive region and an element region, and a second region adjacent to the first region;

a window disposed on the display panel;

an electronic module disposed below the first region of the display panel;

a housing disposed below the display panel and the electronic module;

an input sensor disposed between the display panel and the window, wherein the input sensor includes a plurality of signal lines; and

a circuit board electrically connected to the input sensor,

wherein the circuit board includes:

a plurality of insulating layers;

a plurality of group signal lines connected to at least one selected from the plurality of signal lines, wherein the plurality of group signal lines includes an outermost signal line disposed on an uppermost layer among the plurality of insulating layers; and

an electromagnetic shielding layer disposed on the outermost signal line.

2. The electronic device of claim 1 , wherein

the plurality of insulating layers comprise a first insulating layer, and a second insulating layer disposed on the first insulating layer,

the second insulating layer comprises a plurality of sub-insulating layers,

the plurality of group signal lines comprise a first group signal line, and a second group signal line, and

the portion of the second group signal line is disposed on an uppermost layer among the plurality of sub-insulating layers.

3. The electronic device of claim 2 , wherein

the first insulating layer comprises:

a first lower sub-insulating layer; and

a first upper sub-insulating layer disposed on the first lower sub-insulating layer, the second insulating layer comprises:

a second lower sub-insulating layer; and

a second upper sub-insulating layer disposed on the second lower sub-insulating layer, and

the portion of the second group signal line is disposed on the second upper sub-insulating layer.

4. The electronic device of claim 3 , wherein

the second group signal line comprises an outermost signal line disposed on the second upper sub-insulating layer, and

the electromagnetic shielding layer covers the outermost signal line.

5. The electronic device of claim 3 , wherein

the portion of the second group signal line is disposed on the second lower sub-insulating layer, and

another portion of the second group signal line is disposed on the second upper sub-insulating layer.

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

an anti-reflection layer disposed on the input sensor,

wherein the anti-reflection layer comprises:

a division layer in which a plurality of division openings overlapping the plurality of light-emitting elements, respectively, are defined; and

a plurality of color filters disposed corresponding to the plurality of division openings, respectively.

7. The electronic device of claim 6 , further comprising:

a shock absorbing layer disposed on the anti-reflection layer.

8. The electronic device of claim 1 ,

wherein the window comprises a window protective layer and a thin film glass substrate.

9. The electronic device of claim 1 , wherein the electronic module receives an optical signal.

10. The electronic device of claim 1 , wherein the display panel comprises a first non-folding region, a second non-folding region, and a folding region between the first non-folding region and the second non-folding region.

11. The electronic device of claim 1 , wherein the input sensor and the circuit board are electrically connected to each other by an anisotropic conductive adhesive layer.

12. The electronic device of claim 1 , wherein

the display panel further comprises an encapsulation layer which covers the plurality of light-emitting elements, and

the input sensor is disposed directly on the encapsulation layer.

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

a support layer disposed below the display panel;

a cover layer disposed below the support layer; and

a digitizer disposed below the cover layer.

14. An electronic device comprising:

a display panel including a plurality of light-emitting elements, a first region having a transmissive region and an element region, and a second region adjacent to the first region;

a window disposed on the display panel;

an electronic module disposed below the first region of the display panel;

a housing disposed below the display panel and the electronic module;

an input sensor disposed between the display panel and the window;

a circuit board electrically connected to the input sensor;

a support layer disposed below the display panel;

a cover layer disposed below the support layer; and

a digitizer disposed below the cover layer,

wherein the circuit board includes:

a plurality of insulating layers;

a plurality of group signal lines includes an outermost signal line disposed on an uppermost layer among the plurality of insulating layers; and

an electromagnetic shielding layer disposed on the outermost signal line.

15. An electronic device comprising:

a display panel;

an input sensor disposed on the display panel; and

a circuit board electrically connected to the input sensor,

wherein the circuit board includes:

a plurality of insulating layers;

a plurality of group signal lines including an outermost signal line disposed on an uppermost layer among the plurality of insulating layers; and

an electromagnetic shielding layer disposed on the outermost signal line, wherein the electromagnetic shielding layer is in contact with an upper surface of the outermost signal line.

Priority Claims (1)
KR 10-2021-0101456 · Aug 2, 2021 · national
Continuity (2)
Continuation 17864087 · Jul 13, 2022
Related Publication 20240081126A1 · Mar 7, 2024
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