IP Library Granted Patent US 12713742
Granted Patent B2
US 12713742 · App. 18/206,599 · Granted Aug 18, 2026

Electronic device

Inventors: Chia-Hsien Hsieh (Miao-Li County, TW); Hong-Sheng Hsieh (Miao-Li County, TW)
Assignee: InnoLux Corporation
H10H20/855B60K35/22B60K35/415B60K35/425H10H20/854H10W90/00B60K35/60B60K2360/785
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Quick Facts
Patent No.
US 12713742
App. No.
18/206,599
Granted
Aug 18, 2026
Kind
B2
Abstract

An electronic device includes a substrate, an electronic component, a first blocking structure and a packaging layer. The substrate defines a normal direction perpendicular to a surface of the substrate. The electronic component is disposed on the substrate. The first blocking structure is disposed adjacent to a side of the electronic component. The packaging layer is disposed on the electronic component and has a refractive index n at a wavelength of 550 nm. The electronic component has a width W in a first direction perpendicular to the normal direction. A distance H is between a surface of the first blocking structure away from the substrate and the surface of the substrate in the normal direction. A spaced distance P 1 is between the surface of the first blocking structure away from the substrate and the electronic component in the first direction. Following relationship is satisfied: H=n ×[( P 1 +W )/tan θ].

Claims (68)

1 . An electronic device, comprising:

a substrate, defining a normal direction perpendicular to a surface of the substrate;

an electronic component disposed on the substrate;

a first blocking structure disposed adjacent to a side of the electronic component, wherein there is a gap between the first blocking structure disposed adjacent to the side of the electronic component and a second blocking structure disposed adjacent to a side of another electronic component adjacent to the electronic component, and there is no other electronic component disposed in the gap; and

a packaging layer disposed on the electronic component and having a refractive index n at a wavelength of 550 nm;

wherein the electronic component has a width W in a first direction perpendicular to the normal direction, a distance H is between a surface of the first blocking structure away from the substrate and the surface of the substrate in the normal direction, a spaced distance P 1 is between the surface of the first blocking structure away from the substrate and the electronic component in the first direction, and following relationship is satisfied:

H=n ×[( P 1+ W )/tan θ], wherein 30°≤θ≤60°.

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

another second blocking structure disposed adjacent to another side of the electronic component, wherein the first blocking structure and the another second blocking structure are sequentially arranged along the first direction, a spaced distance P 2 is between a surface of the another second blocking structure away from the substrate and the electronic component in the first direction, and the spaced distance P 1 is different from the spaced distance P 2 .

3 . The electronic device of claim 2 , wherein the spaced distance P 1 and the spaced distance P 2 satisfy following relationship:

1< P 2/ P 1≤4.

4 . The electronic device of claim 1 , wherein the distance H satisfies following formula:

30 μm≤ H≤ 150 μm.

5 . The electronic device of claim 1 , wherein the first blocking structure comprises a multi-layer structure, a portion of the multi-layer structure comprises an absorbing material, and another portion of the multi-layer structure comprises a non-absorbing material.

6 . The electronic device of claim 1 , wherein a distance B is between a surface of the packaging layer away from the substrate and the surface of the substrate in the normal direction, and the distance B is different from the distance H.

7 . The electronic device of claim 1 , wherein a side surface of the first blocking structure is a curved surface or an oblique and straight surface.

8 . The electronic device of claim 1 , wherein the first blocking structure has a width in the first direction, and the width of the first blocking structure changes gradually from the substrate along the normal direction away from the substrate.

9 . The electronic device of claim 1 , wherein the electronic device comprises a plurality of the electronic components arranged in a second direction different from the first direction, and the first blocking structure extends along the second direction to be disposed at a same side of the plurality of the electronic components and adjacent to the plurality of the electronic components.

10 . An electronic device, comprising:

a substrate, defining a normal direction perpendicular to a surface of the substrate;

an electronic component disposed on the substrate;

a first blocking structure disposed adjacent to a side of the electronic component, wherein there is a gap between the first blocking structure disposed adjacent to the side of the electronic component and a second blocking structure disposed adjacent to a side of another electronic component adjacent to the electronic component, and there is no other electronic component disposed in the gap; and

a packaging layer comprising m sub-layers sequentially disposed on the electronic component, wherein m is a positive integer greater than 1;

wherein a name of each of the sub-layers is defined as a i th sub-layer, the i th sub-layer has a refractive index ni at a wavelength of 550 nm, the i th sub-layer has a height Hi in the normal direction, i is a positive integer from 1 to m, the electronic component has a width W in a first direction perpendicular to the normal direction, a distance H is between a surface of the first blocking structure away from the substrate and the surface of the substrate in the normal direction, a spaced distance P 1 is between the surface of the first blocking structure away from the substrate and the electronic component in the first direction, and following relationships are satisfied:

i

=

3

m

Hi

/

ni

=

[

(

P

1

+

W

)

/

tan

θ

]

,

 wherein 30°≤θ≤60°, and

H

=

i

=

3

m

Hi

.

11 . The electronic device of claim 10 , further comprising:

another second blocking structure disposed adjacent to another side of the electronic component, wherein the first blocking structure and the another second blocking structure are sequentially arranged along the first direction, a spaced distance P 2 is between a surface of the another second blocking structure away from the substrate and the electronic component in the first direction, and the spaced distance P 1 is different from the spaced distance P 2 .

12 . The electronic device of claim 11 , wherein the spaced distance P 1 and the spaced distance P 2 satisfy following relationship:

1< P 2/ P 1≤4.

13 . The electronic device of claim 10 , wherein the distance H satisfies following formula:

30 μm≤ H≤ 150 μm.

14 . The electronic device of claim 10 , wherein the first blocking structure comprises a multi-layer structure, a portion of the multi-layer structure comprises an absorbing material, and another portion of the multi-layer structure comprises a non-absorbing material.

15 . The electronic device of claim 10 , wherein a distance B is between a surface of the packaging layer away from the substrate and the surface of the substrate in the normal direction, and the distance B is different from the distance H.

16 . The electronic device of claim 10 , wherein a side surface of the first blocking structure is a curved surface or an oblique and straight surface.

17 . The electronic device of claim 10 , wherein the first blocking structure has a width in the first direction, and the width of the first blocking structure changes gradually from the substrate along the normal direction away from the substrate.

18 . The electronic device of claim 10 , wherein the electronic device comprises a plurality of the electronic components arranged in a second direction different from the first direction, and the first blocking structure extends along the second direction to be disposed at a same side of the plurality of the electronic components and adjacent to the plurality of the electronic components.